{"id":32658,"date":"2026-04-23T16:28:54","date_gmt":"2026-04-23T14:28:54","guid":{"rendered":"https:\/\/www.lt-gasetechnik.de\/?page_id=32658"},"modified":"2026-04-24T15:16:41","modified_gmt":"2026-04-24T13:16:41","slug":"frequently-asked-questions-faq","status":"publish","type":"page","link":"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/","title":{"rendered":"Frequently asked questions (FAQ)"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row][vc_column]<h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Frequently Asked Questions (FAQ) on Gas Technology, Gas Mixers and Pressure Regulation Technology<\/span><\/h2>[vc_column_text css=&#8221;&#8221;]Do you have questions about SNG systems, gas mixers or dome pressure regulators? In our FAQ section you will find well-founded answers on the products and services of LT GASETECHNIK. Whether propane\/air gas mixing systems, selecting the right gas mixer (smart, comfort or advanced), commissioning, operation or pressure regulation technology \u2013 our experts have compiled the most important questions from over 50 years of practical experience.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<ul>\n<li><strong><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/sng\">SNG Gas Mixing Systems<\/a><\/strong> \u2013 Propane\/Air as a Natural Gas Substitute: Technology, Design &amp; Economics<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/selecting\"><strong>Selecting a Gas Mixer<\/strong><\/a> \u2013 Types, Costs, Advantages &amp; Manufacturer Comparison<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/installing\"><strong>Installing a Gas Mixer<\/strong><\/a> \u2013 On-Site Requirements, Explosion Protection &amp; Installation<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/commissioning\"><strong>Conditions Commissioning a Gas Mixer<\/strong><\/a> \u2013 Commissioning Process, Customer Tasks &amp; Control Technology<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/operation\"><strong>Gas Mixer in Operation<\/strong><\/a> \u2013 Control, Safety, Maintenance &amp; Interfaces<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/dome\"><strong>Dome Pressure Regulators<\/strong><\/a> \u2013 Applications, Types &amp; Comparison with Spring-Loaded Regulators<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/buying\"><strong>Buying &amp; Using a Gas Mixer<\/strong><\/a> \u2013 Quotation, Delivery Times<\/li>\n<li><a href=\"https:\/\/www.lt-gasetechnik.de\/en\/about-us\/frequently-asked-questions-faq\/profile\"><strong>LT GASETECHNIK Profile<\/strong><\/a> \u2013 Manufacturer of Gas Mixers, Pressure Regulators &amp; Special Systems<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;sng &#8220;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>SNG Gas Mixing Systems \u2013 Propane\/Air as a Natural Gas Substitute: Technology, Design &amp; Economics<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;What is an SNG system and what is it used for?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]An SNG system (Synthetic Natural Gas) produces synthetic natural gas by mixing gaseous propane (LPG) with air or nitrogen. Industrial companies use SNG systems for various purposes:<\/p>\n<ul>\n<li><strong>CO\u2082 reduction<\/strong>: By using renewable LPG (rLPG), CO\u2082 emission certificates can be saved<\/li>\n<li><strong>H\u2082 energy transition<\/strong>: Mixing LPG with hydrogen additionally enables price- and CO\u2082-flexible fuel design<\/li>\n<li><strong>Backup supply<\/strong>: In the event of natural gas supply interruptions, the system seamlessly takes over<\/li>\n<li><strong>Energy supply<\/strong>: In regions without a natural gas grid connection, LPG provides a proven alternative<\/li>\n<\/ul>\n<p>The resulting gas mixture matches the properties of natural gas and can be fed <strong>directly into existing plant networks without requiring any modifications to existing burners<\/strong>. SNG systems ensure an uninterrupted energy supply and avoid costly conversions.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What does the typical layout of an SNG system look like?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]An SNG system consists of several coordinated components. Tanks store the propane and are equipped with a filling line and a transfer station. A hot-water or electrically heated vaporiser converts the liquid propane into the gas phase. The gas\/air mixing system from LT GASETECHNIK adjusts the gas mixture <strong>to match the calorific value of the existing natural gas<\/strong>. A buffer vessel can compensate for large fluctuations in gas demand.<\/p>\n<p>Overall, the design allows the flexible use of propane to supplement or fully replace natural gas in the range of 1 to 100 MW as required. The additional option of blending hydrogen or green LPG (bio-propane, rLPG) enables a positive environmental impact.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How much space does an SNG system require?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]The space requirement of an SNG system depends on the plant size and safety requirements. An overview of the main components and their footprint:<\/p>\n<ul>\n<li><strong>Tanks<\/strong>: Installation pad or dome pit, depending on storage capacity<\/li>\n<li><strong>Unloading station<\/strong>: For tanker trucks with fill and vapour return connections<\/li>\n<li><strong>Vaporiser and pressure regulation station<\/strong>: Often in a 20-foot container on a suitable foundation<\/li>\n<li><strong>Gas\/air mixing system<\/strong>: Depending on gas volume, in a field cabinet, on a frame or in a 30-foot container<\/li>\n<\/ul>\n<p>When planning, space should be allocated for access, maintenance and safety clearances. The exact area is determined individually according to local conditions.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What regulatory requirements apply to liquefied gas vessels?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]For liquefied gas vessels with a storage capacity of 3 tonnes or more, an approval procedure under the Federal Immission Control Act (9. BImSchV) is required. For a 29-tonne vessel (\u2265 9 t and &lt; 30 t), a simplified procedure without public disclosure applies. For a 165-tonne vessel, a formal procedure with public disclosure is required. In general, TRBS 3146 applies to stationary pressure systems, as well as the hazard assessment in accordance with BetrSichV and GefStoffV.<\/p>\n<p>The formal approval period is seven months after a declaration of completeness, but realistically at least 12 months. For amendment approvals to existing systems, four to six months are theoretically envisaged.<\/p>\n<p>Important: From 50 tonnes of propane storage, the Major Accident Ordinance (St\u00f6rfallverordnung) applies, which entails additional documentation and inspection obligations, regardless of other accident-relevant substances on site. For questions about approval procedures, the weyer gruppe is available to assist.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Why are a pump and vaporiser needed?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]Without a pump and vaporiser, an externally installed tank typically only achieves 0.75 \u2013 1.5 barg, which is insufficient for the standard gas mixing system that requires a minimum inlet pressure of 4.5 barg. The pump transports the liquefied gas in the liquid phase to the vaporiser, which is designed for a maximum of 25 bar and, with a redundant safety device, prevents liquid phase from entering the downstream piping system.<\/p>\n<p>The gas outlet temperature of the vaporiser is generally between 40 \u00b0C and 80 \u00b0C to avoid condensation in the piping system. Vaporisers must be equipped with a pressure switch, heating shut-off and safety valve. If there is a longer run to the gas mixer, trace heating must be provided to prevent droplets from damaging the fittings. At the gas mixer, temperatures between 25 \u00b0C and 60 \u00b0C should be present.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Why is a gas mixing system needed for SNG?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]A gas mixing system is used to avoid converting existing burners and to allow existing equipment to continue to be used unchanged. The reason: propane has a significantly higher calorific value of 25.48 kWh\/m\u00b3 compared to natural gas (L-gas: 8.87 kWh\/m\u00b3, H-gas: 10.475 kWh\/m\u00b3). Existing industrial burners therefore cannot process pure propane.<\/p>\n<p>In a gas mixing system, the propane is blended with air or nitrogen to match the calorific value of natural gas \u2013 the result is SNG (Synthetic Natural Gas). This natural gas substitute can be fed directly into the plant network without the need to retrofit burners. This avoids downtime caused by cooling down, conversion and reheating. In addition, a gas mixing system enables the use of further energy sources such as hydrogen or green propane.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How precisely does a gas mixing system from LT GASETECHNIK work?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]Gas mixing systems from LT GASETECHNIK operate with high precision and reproducibility. Since gases cannot be mixed precisely simply by adjusting two valves, the systems use the physical laws of nearly ideal gases: the pressures and volumetric flow rates (quantities) of each individual gas are controlled, back-mixing is prevented, and the gases are blended via a turbulence element.<\/p>\n<p><strong>Static SNG gas mixers<\/strong> from LT achieve accuracies of \u00b10.5 vol.% or better.<\/p>\n<p><strong>Dynamic SNG gas mixing systems<\/strong> achieve accuracies of up to \u00b10.1% of the setpoint. This level of precision requires a gas analyser with cascade feedback and regular calibration with certified reference gases.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What types of gas mixers are available?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]Various technologies are available for producing gas mixtures, differing in accuracy and degree of automation:<\/p>\n<ul>\n<li><strong>Mechanical proportional mixing valve<\/strong>: Outdated, inaccurate, unsafe \u2013 manual interventions required, slow start<\/li>\n<li><strong>Electronic mixing valve<\/strong>: Like mechanical, but with motorised actuation<\/li>\n<li><strong>Pneumatic mass flow controllers<\/strong>: Accurate, but manual interventions necessary<\/li>\n<li><strong>Mass flow controllers (MFC) or orifice measurement with control valves<\/strong>: Very accurate, fully automatic adjustment, fast start \u2013 the technology preferred by LT GASETECHNIK for dynamic gas mixers<\/li>\n<\/ul>\n<p>LT GASETECHNIK uses exclusively the latter two, modern technologies.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What safety functions do gas mixing systems offer?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]Gas mixing systems from LT GASETECHNIK feature comprehensive safety functions tailored to the respective application:<\/p>\n<ul>\n<li><strong>Gas backflow prevention<\/strong>: Mechanical or control-based, to prevent unwanted transfer between gas streams<\/li>\n<li><strong>Safety relief and safety shut-off valves (SBV\/SAV)<\/strong>: To protect against excess pressure<\/li>\n<li><strong>Gas analysis<\/strong>: Permanently monitors the gas mixture to prevent impermissible compositions (e.g. explosive gas)<\/li>\n<li><strong>Pressure and volume control<\/strong>: Precise regulation of operating parameters<\/li>\n<li><strong>Documentation<\/strong>: Complete recording of temperatures, gas flows and mixing results<\/li>\n<li><strong>Automatic control<\/strong>: Integration into higher-level process control systems possible<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What does an LT gas mixing system for SNG consist of?&#8221; tab_id=&#8221; &#8220;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK offers various concepts for natural gas substitution, graded in performance \u2013 from the compact gas mixer to the complete gas mixing system. For standard applications, a selection of 72 standard gas mixer models is available, enabling fast delivery. Above a certain performance class, the design of a customer-specific gas mixing system is required, which means a greater time requirement for engineering and manufacturing.<\/p>\n<p>Further information on LT gas mixers can be found on our product page.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How can hydrogen be used in gas mixing systems?&#8221; tab_id=&#8221;sng-wasserstoff&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK has been manufacturing gas mixers and gas mixing systems for hydrogen for over 50 years. Green hydrogen can be blended into natural gas or SNG in a gas mixing system \u2013 up to 20%, and in some cases even up to 30% H\u2082 in the gas mixture, can usually be processed without problems by current burner and pipeline installations. LT has also delivered systems with up to 100% hydrogen content.<\/p>\n<p>For industrial companies, the gradual transition represents an energy flexibility gain: in addition to improved supply security, it offers opportunities for price optimisation between the energy carriers hydrogen, natural gas and propane. The significantly lower calorific value of hydrogen (2.995 kWh\/m\u00b3) is compensated by blending with propane and air or nitrogen.<\/p>\n<p>SNG systems from 5 MW are usually designed with the &#8220;H\u2082-ready&#8221; option, enabling a later conversion to propane\/hydrogen\/air blending.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How does an H\u2082-ready conversion of an existing SNG system proceed?&#8221; tab_id=&#8221;sng-h2-ready-umbau&#8221;][vc_column_text css=&#8221;&#8221;]SNG systems from 400 Nm\u00b3\/h can be supplied with the &#8220;H\u2082-ready&#8221; option, which enables later conversion to hydrogen blending. During conversion, the system is modified at LT GASETECHNIK for a limited period of approximately 2 weeks and then reconnected to the plant network.<\/p>\n<p>The space already provided at the time of initial delivery for additional fittings and control components is used. The analyser technology is extended to include H\u2082 measurement, and a Wobbe-index control for the gas mixture of propane, hydrogen, natural gas and air is integrated. In total, LT GASETECHNIK has realised 250 customer-specific gas mixing systems worldwide, approximately 90 of which include H\u2082 blending.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Can existing burners be operated with SNG?&#8221; tab_id=&#8221;sng-brenner-umruestung&#8221;][vc_column_text css=&#8221;&#8221;]Yes, standard natural gas burners can process a gas mixture of propane\/air or propane\/nitrogen without problems. The flame shape changes slightly, as the combustion gas volumetric flows are different, but the energy input into the process remains identical to the previous natural gas operation, as calculated by the calorific value.<\/p>\n<p>For processes that depend on a specific flame shape (e.g. flame length or temperature distribution in flame polishing), LT GASETECHNIK offers special solutions. Pure propane without blending is not suitable for typical burners \u2013 retrofitting usually requires a downtime of several days and corresponding hardware from the burner manufacturer. Using a gas mixing system avoids exactly this conversion.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is safety ensured when mixing propane with air?&#8221; tab_id=&#8221;sng-sicherheit-luft&#8221;][vc_column_text css=&#8221;&#8221;]For the mixing of propane with air, LT GASETECHNIK recommends a SIL-2 oxygen gas analyser with SIL-2 shutdown. This solution monitors the oxygen content in the mixed gas continuously and independently of the gas mixer control, and automatically shuts down if a limit value is exceeded. This reliably prevents the formation of explosive gas mixtures in the plant network.<\/p>\n<p>At smaller outputs up to 120 Nm\u00b3\/h, nitrogen is sometimes used as the blending gas, as this does not require special SIL monitoring, making the system simpler and more cost-effective.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is back-mixing of gases prevented?&#8221; tab_id=&#8221;sng-rueckvermischung&#8221;][vc_column_text css=&#8221;&#8221;]Back-mixing \u2013 i.e. the unwanted ingress of air into the propane line or vice versa \u2013 is prevented by several measures. For smaller systems, gas backflow preventers are used. For systems from 400 Nm\u00b3\/h, check valves are used. The control system monitors the pressures downstream of the pressure regulators and automatically closes the valves in the event of unfavourable differentials, while an alarm is triggered. In addition, the closing pressure of the pressure regulators is below the minimum supply pressure, so that backflow is structurally excluded.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Is a complete replacement of natural gas by SNG possible?&#8221; tab_id=&#8221;sng-vollstaendiger-ersatz&#8221;][vc_column_text css=&#8221;&#8221;]Yes, if the natural gas supply is completely shut off, the SNG backup system can fully replace the natural gas. In the event of a partial shutdown, SNG is fed into the existing plant natural gas network to partially replace the missing natural gas \u2013 a process known as peak shaving.<\/p>\n<p>Partial replacement requires careful coordination, as the pressure stages of plant networks are finely tuned and the natural gas supply must be flow-controlled. Where necessary, the backup solution consists of three controlled streams: propane, air or nitrogen and natural gas, enabling precise setting of quantities and pressures and verification of the permitted reduced consumption.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How quickly is an SNG system ready for operation in the event of a natural gas shortage?&#8221; tab_id=&#8221;sng-schnellstart&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixing systems have special quick-start capabilities that make them particularly suitable as a backup solution. From standby, the system delivers the correct gas mixture and gas quantity in under one minute. For a cold start after complete shutdown of the vaporiser and gas mixing system, the start-up time is approximately 30\u201345 minutes for hot-water vaporisers and approximately 10\u201320 minutes for electrically heated vaporisers.<\/p>\n<p>This makes SNG systems suitable both as a reliable emergency supply in the event of natural gas interruptions and for peak load coverage (peak shaving). With static gas mixers with a buffer vessel, correctly mixed gas is also immediately available after switching on.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What support does LT GASETECHNIK offer in the investment process?&#8221; tab_id=&#8221;sng-unterstuetzung&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK offers comprehensive consulting and support throughout the entire investment process. As part of the weyer gruppe, we work with established partners and offer, among other things:<\/p>\n<ul>\n<li>Approval support<\/li>\n<li>Safety concepts and explosion protection<\/li>\n<li>Engineering and process technology for conceptual planning<\/li>\n<li>Gas mixing technology has been our core business for over 50 years<\/li>\n<\/ul>\n<p>This means you can receive a complete solution from a single source, or support for individual packages, as required.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Which services are not included in LT GASETECHNIK&#8217;s scope of supply?&#8221; tab_id=&#8221;sng-abgrenzung-lieferumfang&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK focuses on gas mixing systems and therefore does not submit offers for tanks, vaporisers, liquid pumps or gas supplies. However, we are happy to recommend partner companies so that you can receive a complete solution from a single source if desired.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the differences between propane, commercial propane, LPG, LNG and CNG?&#8221; tab_id=&#8221;sng-unterschiede-gase&#8221;][vc_column_text css=&#8221;&#8221;]Commercial propane in accordance with DIN 51622 in 95\/5 quality (minimum 95% propane, maximum 5% butane) is the common fuel gas for industrial gas mixing systems. Pure propane is only used in industrial applications for specific purposes. LPG (Liquefied Petroleum Gas) is used as a synonym.<\/p>\n<p>rLPG, or renewable propane (also bio-LPG or bio-propane), is biogenic liquefied gas from waste, biomass or renewable raw materials, chemically identical to conventional LPG. It meets strict certifications with evidence of origin, quantity and CO\u2082 reduction (between 15 and 100%), is GEG-compliant and low-emission to CO\u2082-neutral. Available in Germany from many suppliers, often as a blend (15\u2013100% bio content); sufficient supply long-term through increasing production. Price is approximately 10\u201375 cents\/litre above conventional LPG (depending on bio content), with exemption from CO\u2082 levies.<\/p>\n<p>LNG (Liquefied Natural Gas) and CNG (Compressed Natural Gas) usually do not require a gas mixing system.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How suitable is hydrogen for existing thermal processes?&#8221; tab_id=&#8221;sng-h2-prozesseignung&#8221;][vc_column_text css=&#8221;&#8221;]If hydrogen (H\u2082) at 20% is planned for injection into the internal gas supply network, the limits of the burners, process plants and materials must be checked. Based on current knowledge, standard burners can process up to 20% H\u2082 in the gas mixture without problems \u2013 however, this must be assessed on a plant-specific basis. Special burners are suitable for up to 100% H\u2082, but are considerably more expensive and require burner replacement.<\/p>\n<p>As up to 20% H\u2082 in the natural gas network may be permitted in the future, an H\u2082 gas analysis prior to blending or of the H\u2082 content in the gas mixture is advisable: this allows the already existing hydrogen content to be taken into account and the gas mixture to be set precisely to the desired total content.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What is the difference between pressure control and flow control in SNG?&#8221; tab_id=&#8221;sng-druck-mengenregelung&#8221;][vc_column_text css=&#8221;&#8221;]In a pressure-controlled gas mixing system, the outlet pressure is set to a fixed value, and the gas quantity automatically adjusts to the current consumption. An SNG system operates in a similar way to a natural gas supply and keeps the pressure in the plant network constant. If consumption falls, the mixing system reduces the delivery quantity; if it rises, it increases accordingly.<\/p>\n<p>In a flow-controlled SNG system, on the other hand, a fixed gas quantity is produced, and the pressure is set via the gas pressure regulation and metering station (GDRM) with natural gas. This variant is particularly suitable when a defined quantity of natural gas substitute must be verified.<\/p>\n<p>The choice between the two concepts depends on the operating mode and the requirements of the plant network. We are happy to advise you on the optimal control strategy.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How do you calculate propane consumption for an SNG system?&#8221; tab_id=&#8221;sng-propanverbrauch&#8221;][vc_column_text css=&#8221;&#8221;]Propane consumption can be derived from the natural gas consumption to be replaced. A practical example: at 1,000 Nm\u00b3\/h of natural gas with a calorific value of 11.5 kWh\/m\u00b3, this results in a propane consumption of approximately 900 kg\/h. In 24\/7 operation, this corresponds to a daily consumption of approximately 22 tonnes.<\/p>\n<p>Since a semi-trailer has a capacity of just under 20\u201321 tonnes, this example would require daily filling of a 29-tonne vessel. From a daily consumption of approximately 100 tonnes (approximately five times the quantity), a rail connection with tank wagons becomes essential.<\/p>\n<p>Important: During refilling, gas mixture production and therefore burner supply can continue uninterrupted. Logistics planning should be carried out jointly with the tank and gas supplier.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;When is nitrogen worth using instead of air as a blending gas?&#8221; tab_id=&#8221;sng-stickstoff-vs-luft&#8221;][vc_column_text css=&#8221;&#8221;]Nitrogen as a blending gas is particularly worthwhile for smaller systems up to 120 Nm\u00b3\/h of gas mixture or for temporary backup operation. The advantage: no SIL-2 oxygen monitoring with associated shutdown, and no additional compressed air is required, making the system simpler and more cost-effective. The annual SIL circuit verification costs are also eliminated.<\/p>\n<p>As a rule of thumb for determining nitrogen requirements: approximately 40% of the required total volumetric flow at an inlet pressure of at least 4.5 barg at the gas mixer. Compressed air is preferred for larger systems, as it is easier and more cost-effective to supply in large quantities \u2013 but then requires a compressed air quality according to ISO 8573 (quality class 2:4:1) with a dew point below \u201325 \u00b0C.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How can butane be used as an alternative to propane in gas mixing systems?&#8221; tab_id=&#8221;1776943963293-6f8c9cef-a2ff&#8221;][vc_column_text css=&#8221;&#8221;]Some companies consider using butane in summer and commercial propane in winter, as butane can be seasonally cheaper. LT GASETECHNIK can design gas mixing systems accordingly. However, pure butane operation requires adjustments: the flow measurement must be switched to Coriolis technology, the lower vapour pressure of butane makes a pump essential, and the trace heating must be designed for the higher required temperature. With seasonal changeover and mixing of both gas types in the tank, manual interventions may become necessary.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How does an SNG system contribute to CO\u2082 reduction?&#8221; tab_id=&#8221;1776943996554-a5f7d6e4-06d0&#8243;][vc_column_text css=&#8221;&#8221;]An SNG system offers several levers for CO\u2082 reduction. By using renewable LPG (rLPG, also known as &#8220;green propane&#8221;), CO\u2082 emission certificates can be saved. The option to integrate green hydrogen into the gas mixture further reduces the fossil fuel share. In addition, flexible fuel design \u2013 switching between natural gas, propane and hydrogen depending on availability and price \u2013 enables gradual decarbonisation without the need to completely retrofit existing systems.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Is the existing plant network suitable for operation with SNG?&#8221; tab_id=&#8221;1776944020922-fa579d1a-28a5&#8243;][vc_column_text css=&#8221;&#8221;]In most cases, yes. The SNG gas mixture of commercial propane (DIN 51622, 95\/5 quality) and air or nitrogen is blended in a ratio of approximately 72\/28 (depending on calorific value). All components of the gas mixture, with the exception of oxygen when air is used, are also found in natural gas. At the burner, oxygen and nitrogen are added to the combustion air anyway.<\/p>\n<p>On careful inspection, in addition to the burners and thermal process equipment, the pipeline materials, fittings and elastomers of the supply network should also be checked. LT GASETECHNIK assumes that existing installations are generally suitable, but this must be assessed on a plant-specific basis by the operator.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;gasmischer-auswahl&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Selecting a Gas Mixer \u2013 Types, Costs, Advantages &amp; Manufacturer Comparison<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;What factors influence the investment amount for a gas mixing system?&#8221; tab_id=&#8221;gm-auswahl-investition&#8221;][vc_column_text css=&#8221;&#8221;]The investment amount depends on several project-specific factors: the system size, the desired redundancies (e.g. for backup or gas mixing trains), the number of gas mixing trains, and the inlet and outlet pressures. The type of gas mixture analysis (measurement principle, SIL, Wobbe index), the gas used, the requirement for metrological traceability and the connection to higher-level systems also significantly influence the costs. Multiple pressure stages can also be served, which further determines the complexity and price. We are happy to prepare an individual budget quotation for you.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Why do industrial customers use gas mixers instead of pre-mixed gas?&#8221; tab_id=&#8221;gm-auswahl-warum-gasmischer&#8221;][vc_column_text css=&#8221;&#8221;]A gas mixer with its own gas supply is in most cases significantly cheaper than purchasing pre-mixed gas in cylinders or bundles. In metal processing in particular, customers specifically use various process gases \u2013 such as nitrogen and argon for inerting, hydrogen for reduction or CO\u2082 for specific thermal reactions.<\/p>\n<p>In addition, an in-house gas mixer enables flexible adjustment of gas composition to changing production requirements. With a precise gas mixer from LT GASETECHNIK (accuracy \u00b10.5% or \u00b10.2%), savings of up to 30% on blending gas costs can be achieved, as the safety margin can be smaller than with less accurate systems.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the main differences between the smart, comfort and advanced gas mixer types?&#8221; tab_id=&#8221;gm-auswahl-typen-vergleich&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK offers three gas mixer series with different performance profiles:<\/p>\n<p>Performance:<\/p>\n<ul>\n<li>smart: 15, 50, 100 Nm\u00b3\/h<\/li>\n<li>comfort: 15, 25, 50, 100, 200, 300, 500 Nm\u00b3\/h<\/li>\n<li>advanced: 3 to 150 Nm\u00b3\/h<\/li>\n<\/ul>\n<p>Maximum operating pressures:<\/p>\n<ul>\n<li>smart: 10 bar(g)<\/li>\n<li>comfort: 25 bar(g)<\/li>\n<li>advanced: 10 bar(g)<\/li>\n<li>individual: from 50 millibar(g) to 100 bar(g) as required<\/li>\n<\/ul>\n<p>Control and accuracy:<\/p>\n<ul>\n<li>smart and comfort: Manual setting, reproducibility \u00b10.5%<\/li>\n<li>advanced: Electronic control with PLC, touchscreen and IoT options, reproducibility \u00b10.2%<\/li>\n<li>System engineering: Siemens control, reproducibility \u00b10.1%<\/li>\n<\/ul>\n<p>Recommendation by requirement:<\/p>\n<ul>\n<li>Highest accuracy or low pressure drop \u2192 advanced<\/li>\n<li>Cost-effective and simple maintenance \u2192 smart \/ comfort<\/li>\n<li>IoT connection or remote control \u2192 advanced<\/li>\n<\/ul>\n<p>All details can be found in the gas mixer type comparison overview.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What is the difference between a static and a dynamic gas mixer?&#8221; tab_id=&#8221;gm-auswahl-statisch-dynamisch&#8221;][vc_column_text css=&#8221;&#8221;]A static gas mixer (types smart and comfort) produces a constant mixed gas quantity that is set manually. Since the quantity produced is slightly above consumption, the pressure in the buffer volume rises. When the upper pressure point is reached, the mixer switches off and restarts when the lower pressure point is reached. Accuracy is guaranteed at \u00b10.5 vol.%. Adjustments are made manually via metering valves; temperature-related deviations must also be corrected manually.<\/p>\n<p>A dynamic gas mixer (type advanced) is operated via an electronic control system and automatically adjusts quantity and concentration. It delivers exactly the quantity consumed at constant pressure \u2013 with a guaranteed accuracy of \u00b10.2 vol.%.<\/p>\n<p>Both systems can be configured with or without buffer vessels, redundantly with automatic switchover (electronic and\/or pressure-controlled).[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Why does LT GASETECHNIK guarantee higher mixing accuracy than the competition?&#8221; tab_id=&#8221;gm-auswahl-genauigkeit-vergleich&#8221;][vc_column_text css=&#8221;&#8221;]The high mixing accuracy of LT gas mixers is based on a superior technical concept. While some competitors use a single proportional valve, LT uses per gas line a dome pressure regulator, a calibrated variable area flow meter and a precise metering valve plus a dynamic pressure valve. This achieves inlet pressure independence \u2013 even with pressure fluctuations of over 3 bar.<\/p>\n<p>For dynamic gas mixers, LT controls via temperature- and pressure-compensated mass flow controllers or orifice measurement with control valves. The result: \u00b10.5% for static and \u00b10.2% (in special cases \u00b10.1%) for dynamic gas mixers \u2013 guaranteed. Field experience frequently shows twice the accuracy.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the five most important advantages of LT gas mixers?&#8221; tab_id=&#8221;gm-auswahl-top5-vorteile&#8221;][vc_column_text css=&#8221;&#8221;]The top 5 advantages of LT gas mixers at a glance:<\/p>\n<ol>\n<li>Highest mixing accuracy: \u00b10.5% or even \u00b10.2% guaranteed \u2013 saves blending gas costs<\/li>\n<li>Low total operating costs: Low running costs thanks to robust, long-lasting design<\/li>\n<li>Long-lasting design: Gas mixer types comfort and smart last over 25 years \u2013 a legendary example is a gas mixer from 1972 that worked reliably for 22 years without any maintenance whatsoever, for almost 200,000 hours<\/li>\n<li>Simple maintenance: Good accessibility of all components, no special tools required<\/li>\n<li>Comprehensive automation: IoT connectivity, remote control, recipe management and data logger available as options[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How much can industrial customers save with a precise LT gas mixer?&#8221; tab_id=&#8221;gm-auswahl-einsparung&#8221;][vc_column_text css=&#8221;&#8221;]With a precise gas mixer from LT GASETECHNIK, savings of up to 30% on blending gas costs are achievable. The calculation is straightforward: a conventional gas mixer with \u00b12% accuracy requires a larger safety margin on the setpoint. For a minimum content of 5% H\u2082 in N\u2082, the setpoint would need to be set at 7.5%. The actual average consumption would then be 7.5% instead of the required 5.2%.<\/li>\n<\/ol>\n<p>An LT gas mixer with \u00b10.2% accuracy allows a setpoint of just 5.3% \u2013 the difference of 2.25% saves 30% hydrogen. For a gas mixer with 500 Nm\u00b3\/h and 8,500 operating hours per year, this results in savings of approximately \u20ac50,000 per year. The higher investment in an LT high-tech gas mixer therefore typically pays back in less than one year.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is the LT gas mixer model designation structured?&#8221; tab_id=&#8221;gm-auswahl-nomenklatur&#8221;][vc_column_text css=&#8221;&#8221;]The short designation of LT series gas mixers follows a systematic structure: GMx LLL-X-B-A Type. Here &#8220;GM&#8221; stands for non-flammable gases and &#8220;GMB&#8221; for flammable gases. &#8220;LLL&#8221; indicates the performance in Nm\u00b3\/h, &#8220;X&#8221; the number of gases to be mixed, &#8220;B&#8221; identifies the buffer vessel (E = stainless steel, C = carbon steel) and &#8220;A&#8221; stands for an integrated gas analyser. The type follows at the end: smart, comfort or advanced.<\/p>\n<p>Examples: GM 50-2 smart = gas mixer for two non-flammable gases, 50 Nm\u00b3\/h, type smart, without buffer and analyser. GMB 100-3-E-A comfort = gas mixer for three gases (at least one flammable), 100 Nm\u00b3\/h, with 90-litre stainless steel buffer vessel and gas analyser, type comfort. This nomenclature facilitates quotation preparation and comparison.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Can LT gas mixers be retrofitted or modified later?&#8221; tab_id=&#8221;gm-auswahl-nachruestung&#8221;][vc_column_text css=&#8221;&#8221;]Yes, LT gas mixers are specifically designed for later adaptation. If gas quantities or mixing ratios change, it is often sufficient to replace a single gas train or just individual components, at a fraction of the price of a new gas mixer.<\/p>\n<p>A practical example: to adapt a gas mixer from 18% CO\u2082 (balance argon) to 2.5% CO\u2082, only the CO\u2082 flow meter needed to be replaced. Another example: to double the performance of a 50 Nm\u00b3\/h gas mixer to 100 Nm\u00b3\/h, only the flow meter and metering valve were replaced on one gas train. This flexibility is not available with proportional valve gas mixers. In both cases, a competitor&#8217;s product would have required a new gas mixer.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What should be considered when comparing gas mixers from different manufacturers?&#8221; tab_id=&#8221;gm-auswahl-vergleich-wettbewerb&#8221;][vc_column_text css=&#8221;&#8221;]When comparing gas mixers from different manufacturers, caution is advised as performance specifications are not directly comparable. With some competitors, the rated performance refers to the volume in air, not to the actual mixed gas. The actual mixed gas performance must be calculated using a gas-specific conversion factor and is often significantly lower.<\/p>\n<p>With LT gas mixers, the stated performance always refers to the actual maximum achievable mixed gas output in Nm\u00b3\/h (usually plus an undisclosed performance reserve) \u2013 regardless of inlet and outlet pressures within the design limits. In addition, gas filters, EMC declaration of conformity and operating instructions are already included as standard in LT gas mixers. The additional inlet pressure reduction, which often has to be sourced separately from competitors (approx. \u20ac1,000 for two gases), is also eliminated with LT thanks to the integrated dome pressure regulators.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;aufstellung&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Installing a Gas Mixer \u2013 On-Site Requirements, Explosion Protection &amp; Installation Conditions<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;What on-site services are required for the installation of a gas mixing system?&#8221; tab_id=&#8221;gm-aufstellung-bauseitig&#8221;][vc_column_text css=&#8221;&#8221;]The customer provides the following on-site services: connection of the gas mixing system on the inlet side to the supply gases and on the outlet side to the natural gas pipeline, connection of vent lines where applicable, and cabling and connection of the control system to a higher-level control system. In addition, foundations with structural calculations, earthing and surge protection, power supply (230 V, 16 A) and lifting equipment for on-site installation are required.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Can LT gas mixers for flammable gases be installed in hazardous areas?&#8221; tab_id=&#8221;gm-aufstellung-exbereich&#8221;][vc_column_text css=&#8221;&#8221;]The mechanical part of LT gas mixers is &#8220;technically permanently leak-tight&#8221; in accordance with TRBS 2152 Part 2 and does not generate an Ex zone. However, the electrical part (control system and gas analysis) must not be installed in the hazardous area. Installation options in detail:<\/p>\n<ul>\n<li>Types smart, comfort and advanced: Mechanical part can be installed in an Ex area \u2013 gas analyser and possibly control system must be mounted separately outside<\/li>\n<li>Gas mixing systems (often in a container or on a frame): Mechanical and electrical parts are separate; the mechanical part is designed for the Ex area<\/li>\n<\/ul>\n<p>Special solutions for the Ex area with high accuracy are available in various options.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What is the difference between a gas mixer with and without a buffer tank?&#8221; tab_id=&#8221;gm-aufstellung-puffertank&#8221;][vc_column_text css=&#8221;&#8221;]All LT gas mixers up to 1,000 Nm\u00b3\/h are available with and without buffer vessels. Without a buffer, the gas mixer type comfort is designed for wall mounting (1,000 \u00d7 800 \u00d7 400 mm). With a buffer vessel, the types smart, comfort or advanced stand on the floor (typically: 1,600 \u00d7 800 \u00d7 400 mm).<\/p>\n<p>As a rule of thumb for buffer size: 10% more buffer volume in litres than the gas mixer performance in Nm\u00b3\/h.<\/p>\n<p>The type advanced (dynamic gas mixer) usually does not require a buffer tank, as it automatically adjusts the quantity at constant pressure. However, the advanced gas mixer is also available with a buffer for special applications.<\/p>\n<p>Buffer vessels are available as standard from 90 litres to 1,000 litres.<\/p>\n<p>Advantages of the buffer tank:<\/p>\n<ul>\n<li>Compensation of consumption fluctuations<\/li>\n<li>No continuous gas withdrawal required<\/li>\n<li>Immediate availability of correctly mixed gas after switching on<\/li>\n<\/ul>\n<p>Disadvantages:<\/p>\n<ul>\n<li>Annual inspection obligation<\/li>\n<li>Higher costs<\/li>\n<li>Delay when changing the mixing composition[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the power supply requirements?&#8221; tab_id=&#8221;gm-aufstellung-strom&#8221;][vc_column_text css=&#8221;&#8221;]The power supply for LT gas mixers is straightforward. Typical requirements: L\/N\/PE AC 50\/60 Hz, 230 V (\u00b110%), power consumption e.g. 23 VA. Larger gas mixing systems from 400 Nm\u00b3\/h may require a higher power connection depending on the scope of control and additional components such as gas preheaters or trace heating. The exact requirements are determined during project engineering.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Are LT gas mixers suitable for outdoor installation?&#8221; tab_id=&#8221;gm-aufstellung-outdoor&#8221;][vc_column_text css=&#8221;&#8221;]The standard enclosures of LT gas mixers are fundamentally suitable for outdoor installation. They consist of a painted steel cabinet with a lockable door and inspection window, dust- and splash-proof to protection class IP 54. However, they should be protected from rain and snow \u2013 a roof overhang or simple canopy is recommended.<\/li>\n<\/ul>\n<p>For operation at sub-zero temperatures, an internal cabinet heater can optionally be integrated. Larger gas mixing systems (from 400 Nm\u00b3\/h) are often installed in insulated containers with separate cooling and heating for the electrical part. The advanced type is usually only suitable for outdoor installation with heating, while the smart and comfort types can be installed outdoors without problems with customer-provided weather protection.<\/p>\n<p>Please provide us with the ambient temperatures and gas temperatures so that we can offer the most suitable solution.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;inbetriebnahme&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Commissioning a Gas Mixer \u2013 Commissioning Process, Customer Tasks &amp; Control Technology<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;How is a gas mixing system commissioned by LT GASETECHNIK?&#8221; tab_id=&#8221;gm-ibn-ablauf&#8221;][vc_column_text css=&#8221;&#8221;]Commissioning by LT GASETECHNIK takes place after all inlet and outlet pipelines have been connected on site and all media are available. The process includes:<\/p>\n<ol>\n<li>Leak tightness and functional check<\/li>\n<li>Commissioning with actual gas quantities<\/li>\n<li>Interlocking tests of all safety circuits<\/li>\n<li>Testing of purging procedures and, where applicable, bypass and backup lines<\/li>\n<li>Training of staff in operation and monitoring of the system<\/li>\n<li>Preparation of a commissioning protocol with any outstanding items<\/li>\n<\/ol>\n<p>For gas mixers from the standard series (smart, comfort), commissioning can also be carried out by trained partner companies with support from LT via web conference and VPN.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What tasks does the customer have during installation?&#8221; tab_id=&#8221;gm-ibn-kundenaufgaben&#8221;][vc_column_text css=&#8221;&#8221;]The customer typically undertakes the following tasks during installation:<\/p>\n<ul>\n<li>Transport of the gas mixer from the handover point to the installation site<\/li>\n<li>Provision of the installation site and erection of the system<\/li>\n<li>Laying of power and data cables<\/li>\n<li>Piping and connection of media supply and return lines<\/li>\n<li>Provision of gases and electricity including calibration gases (if a gas analyser is installed)<\/li>\n<li>Where applicable, laying of vent and condensate lines<\/li>\n<\/ul>\n<p>Some of these items can be provided by LT upon agreement.<\/p>\n<p>LT GASETECHNIK provides detailed connection drawings and an interface list on request.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What control technology is used for larger gas mixing systems?&#8221; tab_id=&#8221;gm-ibn-steuerungstechnik&#8221;][vc_column_text css=&#8221;&#8221;]For gas mixing systems, the control is mounted in a separate control cabinet and is usually equipped with a local operating device (touchscreen) and a connection to the central control system. LT GASETECHNIK prefers LT standard or Siemens S7 controllers. Fail-safe solutions are also available.<\/p>\n<p>As an alternative to the expensive Siemens solution, we offer proven industrial controllers from an alternative manufacturer for smaller tasks. LT uses these over 100 times per year across various gas technology projects. Wiring on terminal blocks is also possible for actuation via a higher-level process control system (PCS).[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Can the system be optimised after commissioning?&#8221; tab_id=&#8221;gm-ibn-optimierung&#8221;][vc_column_text css=&#8221;&#8221;]Yes, optimisations typically take place a few weeks after regular operation begins, or immediately after commissioning if required. The control strategies are reviewed and the stability and speed of the control loops optimised. Transition processes and overshoot behaviour are also analysed and minimised.<\/p>\n<p>These optimisations can be carried out either remotely via a VPN connection or on-site by LT GASETECHNIK.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;betrieb-wartung&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Gas Mixer in Operation \u2013 Control, Safety, Maintenance &amp; Interfaces<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;How does control of a gas content or Wobbe index work?&#8221; tab_id=&#8221;gm-betrieb-wobbe&#8221;][vc_column_text css=&#8221;&#8221;]Gas mixing systems from LT GASETECHNIK can optionally be equipped with a gas analyser. LT GasAnalyser systems use thermal conductivity detectors (TCD), non-dispersive infrared sensors (NDIR) or paramagnetic or electrochemical cells for precise, continuous concentration determination of gas mixtures. These technologies enable the measurement of flammable and non-flammable gases in industrial applications. The GasAnalyser systems from LT can also combine TCD, NDIR and paramagnetic sensors to detect multiple gas components simultaneously.<\/p>\n<p>TCD technology (thermal conductivity detector): The TCD measures the difference in thermal conductivity between the measurement gas and a reference gas. This method is particularly suitable for gases whose thermal conductivity differs significantly from that of the carrier gas \u2013 for example hydrogen, helium or ammonia. The TCD operates with long-term stability, is low-maintenance and can be used over a wide concentration range.<\/p>\n<p>NDIR technology (non-dispersive infrared spectroscopy): The NDIR sensor utilises the characteristic absorption of infrared radiation by certain gas molecules. This method is used for gases that are IR-active, including carbon dioxide (CO\u2082), carbon monoxide (CO), methane (CH\u2084), sulphur dioxide (SO\u2082) and other hydrocarbons. NDIR technology is characterised by high selectivity and sensitivity, enabling reliable measurement even at low concentrations.<\/p>\n<p>Paramagnetic and electrochemical cells: Both methods are used specifically for oxygen measurement in gas mixtures. Paramagnetic sensors utilise the pronounced paramagnetic property of oxygen molecules and offer high selectivity with fast response time. Electrochemical cells detect oxygen via an electrochemical reaction and are particularly suitable for monitoring low O\u2082 concentrations. The appropriate method is selected depending on the application and required measurement range.<\/p>\n<p>Gas mixing systems can also be equipped with gas analysers for targeted calorific value, net calorific value or Wobbe index determination. This enables determination of combustion air requirements.<\/p>\n<p>The operator specifies the desired setpoint to the gas mixing system control, and the mixing ratio is automatically adjusted. Control is first performed on the calculated ratio and then on the measured actual value. Setpoint and actual values can be exchanged via a bidirectional interface (Modbus, Ethernet or similar) with a higher-level controller or process control system.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How does the gas mixer operate \u2013 continuously or intermittently?&#8221; tab_id=&#8221;gm-betrieb-betriebsart&#8221;][vc_column_text css=&#8221;&#8221;]Normal operation of a gas mixer is continuous. At low consumption (below approximately 10% of the maximum mixed gas output), the mixer automatically switches to intermittent operation \u2013 the cycling frequency depends on the available buffer volume and the current gas consumption.<\/p>\n<p>Minimum run times between switching on and off differ depending on the type:<\/p>\n<ul>\n<li>smart and comfort: At least 10 seconds per operating cycle<\/li>\n<li>advanced: At least 1 minute per operating cycle<\/li>\n<li>Gas mixing systems: Depending on the individual concept, typically continuous<\/li>\n<\/ul>\n<p>With a buffer tank, static gas mixers typically operate intermittently; without a buffer tank, continuously.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Does the mixing ratio remain stable when restarted?&#8221; tab_id=&#8221;gm-betrieb-stabilitaet&#8221;][vc_column_text css=&#8221;&#8221;]Yes, the set gas mixing ratio remains unchanged after switching off and back on. With static gas mixers (smart and comfort), the metering valves are set purely mechanically and retain their position. The advanced type additionally offers the option of storing various recipes in the control system, so that different gas compositions can be recalled at the touch of a button.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How quickly does the gas mixer deliver a stable gas mixture after switching on?&#8221; tab_id=&#8221;gm-betrieb-startzeit&#8221;][vc_column_text css=&#8221;&#8221;]The time to a qualified, stable gas mixture depends on the gas mixer type:<\/p>\n<ul>\n<li>smart and comfort: After setting, re-adjustment takes a few minutes, depending on the qualifications of the operating staff<\/li>\n<li>advanced and gas mixing systems: Immediately after switching on \u2013 the electronic control automatically establishes the desired composition<\/li>\n<\/ul>\n<p>For SNG gas mixing systems with quick-start function, the correct gas mixture is available from standby in under 1 minute. A cold start with hot-water vaporisers takes approximately 30\u201345 minutes, with electrically heated vaporisers approximately 10\u201320 minutes.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How are different inlet pressures handled?&#8221; tab_id=&#8221;gm-betrieb-druckunterschiede&#8221;][vc_column_text css=&#8221;&#8221;]With LT gas mixers, the inlet pressures of the various gases do not need to be kept within less than 3 bar pressure differential, unlike competitor products. LT gas mixers use pressure regulators on each gas inlet line that reliably compensate for even large pressure differences.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What safety features are included in gas mixers for N\u2082\/H\u2082?&#8221; tab_id=&#8221;gm-betrieb-sicherheit-n2h2&#8243;][vc_column_text css=&#8221;&#8221;]LT gas mixers for nitrogen\/hydrogen applications feature a multi-stage safety concept: dome pressure regulators in the gas inlet lines are controlled by the carrier gas (nitrogen) and are normally closed. In the event of carrier gas failure, this reliably prevents impermissible hydrogen enrichment.<\/p>\n<p>In addition, a normally-closed valve is installed in the mixed gas outlet line, which, together with the dome pressure regulators, provides double safety. The advanced type is also equipped with a gas detection device that automatically shuts down in the event of a leak.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What interfaces and data connections are possible?&#8221; tab_id=&#8221;gm-betrieb-schnittstellen&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixers offer extensive networking capabilities. Standard (where a control system or gas analyser is integrated): potential-free contacts, digital inputs\/outputs, relay outputs, analogue inputs (0\u201310 V \/ 4\u201320 mA), Ethernet and USB connection with data logger.<\/p>\n<p>Optionally available: Modbus RTU, CANopen, TCP\/IP, Profibus, ProfiNet, dedicated web server, GSM module for email\/SMS transmission on defined events, and a VPN module for secure remote access for troubleshooting and online support \u2013 even behind firewalls. This Industry 4.0 capability clearly differentiates LT gas mixers from the competition.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What maintenance is required for LT gas mixers?&#8221; tab_id=&#8221;gm-betrieb-wartung&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixers are designed for minimal maintenance effort. The following tasks are recommended annually:<\/p>\n<ul>\n<li>Check safety valves for function<\/li>\n<li>Leak tightness test of the entire system<\/li>\n<li>Replace filters (usually one per gas inlet)<\/li>\n<li>Service pressure regulators with maintenance kit<\/li>\n<li>Calibrate gas analyser with zero and calibration gas<\/li>\n<li>Inspect pressure vessels in accordance with statutory requirements<\/li>\n<\/ul>\n<p>A legendary example of robustness: a gas mixer delivered in 1972 (serial number 4) operated reliably for 22 years without any maintenance or readjustment whatsoever \u2013 nearly 200,000 operating hours without interruption.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What is the typical service life and delivery time of components?&#8221; tab_id=&#8221;gm-betrieb-lebensdauer&#8221;][vc_column_text css=&#8221;&#8221;]The longevity of LT products is a key advantage:<\/p>\n<p>Typical service life:<\/p>\n<ul>\n<li>Gas mixer types comfort and smart: Over 25 years<\/li>\n<li>Dome pressure regulators: Over 30 years<\/li>\n<li>Gas mixer type advanced: Expected over 15 years<\/li>\n<\/ul>\n<p>Delivery times:<\/p>\n<ul>\n<li>Complete gas mixer: 4\u20138 weeks<\/li>\n<li>Dome pressure regulators and pressure regulation units and assemblies: Available from stock<\/li>\n<li>Gas analyser: 4\u20136 weeks<\/li>\n<\/ul>\n<p>Availability can be further increased by a redundant system: all components are duplicated, so the second system takes over immediately in the event of a failure.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Which standards and approvals apply to LT gas mixers?&#8221; tab_id=&#8221;gm-betrieb-normen&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixers are manufactured and tested in accordance with comprehensive European and national standards. Typical conformity and approval documentation includes:<\/p>\n<ul>\n<li>CE Declaration of Conformity<\/li>\n<li>ATEX Declaration of Conformity (required for flammable gases in the EU)<\/li>\n<li>Pressure Equipment Directive (PED) \u2013 Declaration of Conformity and T\u00dcV Module G<\/li>\n<li>EMC and Low Voltage Directive<\/li>\n<li>Design and manufacture according to ISO 9001:2015<\/li>\n<li>DIN EN ISO 12100:2011-03 Safety of machinery<\/li>\n<li>DIN EN ISO 13577, Industrial thermoprocessing equipment \u2013 in particular safety requirements for the generation and use of protective and reactive gases<\/li>\n<li>DIN EN ISO 13849-1:2023-12 Safety-related parts of control systems<\/li>\n<li>DIN ISO\/TR 14121-2:2013-02 Risk assessment<\/li>\n<\/ul>\n<p>Documentation includes leak tightness tests, pressure tests, gas analyser test certificates, calibration certificates, P&amp;ID, circuit diagrams and operating instructions. LT GASETECHNIK is also certified to ISO 9001 and ISO 45001.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Is there a calculator for setting the gas mixer?&#8221; tab_id=&#8221;gm-betrieb-app&#8221;][vc_column_text css=&#8221;&#8221;]Yes, LT GASETECHNIK offers a free gas mixture calculator with which the gas quantities for static gas mixers of types smart and comfort can be calculated and set. The calculator determines the correct setting values for the metering valves based on the desired gas composition and operating parameters. You simply read off the calculated values on the variable area flow meters and set them precisely.<\/p>\n<p>This function is a key advantage over proportional valve mixers, where the user is dependent on the factory setting of the manufacturer. With LT gas mixers, the actual flowing gas quantities are displayed at all times and can be set reproducibly. The optional gas analyser additionally verifies and monitors the mixed gas quality during operation.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is safety ensured in gas mixing systems with hydrogen?&#8221; tab_id=&#8221;gm-betrieb-sicherheit-h2&#8243;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK has over 50 years of experience in the safety engineering of systems for flammable gases and in handling hydrogen.<\/p>\n<p>Specifically, the safety concept includes: hydrogen-compatible fittings and elastomers, explosion protection concepts for the mechanical area, integrated gas warning and interlocking systems, and a pressure-tight double safety function via dome pressure regulator and outlet valve. In the event of carrier gas failure, all gas lines are automatically isolated.<\/p>\n<p>Depending on the concept, LT recommends for H\u2082 installations a gas warning system integration that automatically shuts down in the event of a leak. On customer request, the gas mixing system can undergo a systematic hazard assessment (HAZOP) and be equipped with SIL-classified safety components in accordance with EN IEC 61508.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What advantages does the design of the comfort type to 25 barg offer?&#8221; tab_id=&#8221;gm-betrieb-comfort-25barg&#8221;][vc_column_text css=&#8221;&#8221;]The gas mixer type comfort is designed to 25 barg \u2013 a decisive advantage over the smart type with a maximum of 10 barg. This higher pressure rating offers several practical benefits: the stainless steel buffer vessel is rated for 25 bar, and cold-tough metallic materials are used as standard.<\/p>\n<p>In addition, the 25 barg design enables a larger operating range for the outlet pressure (up to 22 barg), which can be critical in applications with higher network pressures.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;domdruckregler&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Dome Pressure Regulators \u2013 Applications, Types &amp; Comparison with Spring-Loaded Regulators<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;Where are the dome pressure regulators from LT GASETECHNIK used?&#8221; tab_id=&#8221;dr-einsatzgebiet&#8221;][vc_column_text css=&#8221;&#8221;]The dome pressure regulators from LT GASETECHNIK (types LTD-1, LTD-2 and LTD-3) are used wherever precise gas pressure regulation is required without delay and without &#8220;hunting&#8221; \u2013 typically downstream of gas tanks, gas bundles or tank trailers.<\/p>\n<p>Technical specifications:<\/p>\n<ul>\n<li>Gas types: Oxygen, hydrogen, propane, CO\u2082, nitrous oxide, nitrogen, argon, helium as well as air and liquids<\/li>\n<li>Performance: 1 to 2,500 Nm\u00b3\/h, depending on gas type<\/li>\n<li>Operating pressure: Inlet 0.5\u2013100 bar, outlet 0.1\u201370 bar; high-pressure version LTD-1 HD up to 400 bar<\/li>\n<li>Connections: 1&#8243;, 2&#8243; or 3&#8243;<\/li>\n<li>Materials: Brass or stainless steel<\/li>\n<\/ul>\n<p>Also available as a variant with pilot pressure regulator for even higher accuracy and stability in back-pressure applications.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What distinguishes LT dome pressure regulators from spring-loaded pressure regulators?&#8221; tab_id=&#8221;dr-wettbewerb&#8221;][vc_column_text css=&#8221;&#8221;]Dome pressure regulators are significantly superior to spring-loaded pressure regulators in terms of control and accuracy. LT GASETECHNIK manufactures exclusively dome pressure regulators and differentiates itself from the competition through the particularly large dome chamber, which achieves superior control accuracy.<\/p>\n<p>A further advantage: pressure regulation units and pressure regulation assemblies are custom-built at LT for the respective gas type and gas pressure. The two leading industrial gas producers rely on LT products and include them in their standard central gas supply catalogues.<\/p>\n<p>The enduring quality of the LTD-1 is impressively demonstrated: a 35-year-old dome pressure regulator sent in for servicing continues to perform reliably after the installation of a maintenance kit.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What advantages do the dome pressure regulators from LT GASETECHNIK offer?&#8221; tab_id=&#8221;dr-vorteile&#8221;][vc_column_text css=&#8221;&#8221;]The dome pressure regulators from LT GASETECHNIK offer five key advantages:<\/p>\n<ol>\n<li>No hunting: Even with large inlet pressure fluctuations, the particularly large dome chamber with its compressible gas pressure accumulator ensures smooth, stable control<\/li>\n<li>Wide performance range: 1 to 2,500 Nm\u00b3\/h<\/li>\n<li>Large working pressure range: Adapted pressure ranges for low, medium and high pressure<\/li>\n<li>Short delivery times: Standard models available from stock<\/li>\n<li>Complete solutions: Assembled and tested ex works \u2013 with bypass, pressure gauge, pilot regulator, shut-off and safety valve in individual configuration[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What configurations of the LTD-1 dome pressure regulator are available?&#8221; tab_id=&#8221;dr-konfigurationen&#8221;][vc_column_text css=&#8221;&#8221;]The proven LTD-1 dome pressure regulator is available in various standard configurations:<\/li>\n<\/ol>\n<ul>\n<li>Pressure display: Pressure gauge for inlet pressure and\/or outlet pressure<\/li>\n<li>With pilot pressure regulator: Built-in, reversible, spring-loaded pilot regulator, supplied with inlet pressure \u2013 for simple adjustment via handwheel with readout on the pressure gauge<\/li>\n<li>Pilot chamber with outlet pressure: Pilot chamber charged with outlet pressure for maximum stability in back-pressure and automatic compensation of temperature-related pressure fluctuations<\/li>\n<\/ul>\n<p>Available connection sizes are 1&#8243;, 2&#8243; and 3&#8243; in brass or stainless steel. For high-pressure applications, the LTD-1 HD variant is available for up to 400 bar. All configurations are custom-built for the respective gas type and gas pressure and can be ordered as part of complete solutions \u2013 assembled and tested ex works.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;kauf-anfrage&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>Buying &amp; Using a Gas Mixer \u2013 Quotation, Delivery Times<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;What information does LT GASETECHNIK need for a quotation?&#8221; tab_id=&#8221;1776335920754-9e740f1d-94d7&#8243;][vc_column_text css=&#8221;&#8221;]For fast preparation of a quotation, it is helpful if you send us an enquiry with the most important data by email to\u00a0<a href=\"mailto:mail@lt-gasetechnik.com\">mail@lt-gasetechnik.com<\/a>.<\/p>\n<p>For gas mixers and gas mixing systems, we require the following information:<\/p>\n<ol>\n<li>Inlet pressure of each gas (min, standard, max)<\/li>\n<li>Outlet pressure of the gas mixture (min, standard, max)<\/li>\n<li>Proportions of the blending gas(es) in the gas mixture (each min, standard, max)<\/li>\n<li>Gas mixture volumetric flow (min, standard, max)<\/li>\n<li>With\/without gas analyser(s)<\/li>\n<li>Installation location (indoors\/outdoors; Ex zone)<\/li>\n<\/ol>\n<p>For SNG systems, at minimum the following points should be answered:<\/p>\n<ol>\n<li>Do you require only a gas mixer or a complete solution with tank, vaporiser and gas mixing system?<\/li>\n<li>What is the natural gas consumption to be replaced per month [Nm\u00b3 or kg] or energy consumption [kW]?<\/li>\n<li>What is the gas consumption per day or at peak [Nm\u00b3\/h]? What is the mode of operation (24\/7)?<\/li>\n<li>What net calorific value does your natural gas have, or what Wobbe index do you require?<\/li>\n<\/ol>\n<p>In addition, information on the plant network pressure, the desired gas mixture (air or nitrogen), hydrogen blending and any special features of the installation site are helpful.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How long is the delivery time for a gas mixing system from LT GASETECHNIK?&#8221; tab_id=&#8221;zusatz-lieferzeit&#8221;][vc_column_text css=&#8221;&#8221;]Delivery time depends on the complexity of the project. Standard gas mixers from the smart, comfort and advanced series are deliverable within 4 to 8 weeks. Dome pressure regulators, dome pressure regulation units and assemblies are often available from stock or at short notice. Customer-specific gas mixing systems require longer lead times due to the engineering effort involved, which are agreed on a project-specific basis. For current delivery times, we recommend a direct enquiry:\u00a0<a href=\"mailto:mail@lt-gasetechnik.com\">mail@lt-gasetechnik.com<\/a>[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What after-sales service does LT GASETECHNIK offer?&#8221; tab_id=&#8221;zusatz-service&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK offers comprehensive after-sales service: on-site or remote commissioning, training for operating staff, maintenance kits for annual in-house maintenance, calibration service for gas analysers, telephone support and remote diagnostics via VPN. An on-site optimisation service is also available for gas mixers and gas mixing systems. LT supports systems throughout their entire service life \u2013 even after 15 or 35 years.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Which industries use gas mixers from LT GASETECHNIK?&#8221; tab_id=&#8221;zusatz-branchen&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixers and gas mixing systems are used in numerous industries. Key customers include the industrial gas industry (Linde, Air Liquide, Praxair), the glass industry (Pilkington, Saint-Gobain), metal processing (ThyssenKrupp, Aurubis), the electronics industry (Siemens, ABB), the automotive industry (Mercedes, VW, Porsche, BMW), the chemical industry (BASF, Evonik) and research institutes. In total, LT GASETECHNIK has realised over 2,000 gas mixer reference installations in more than 35 countries worldwide.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What typical gas mixtures are produced with LT gas mixing systems?&#8221; tab_id=&#8221;zusatz-gasmischungen&#8221;][vc_column_text css=&#8221;&#8221;]LT gas mixing systems are used for a wide variety of industrial gas mixtures. The most common combinations include:<\/p>\n<ul>\n<li>H\u2082\/N\u2082 (forming gas) \u2013 for the metal and glass industries<\/li>\n<li>C\u2083H\u2088\/air (SNG) \u2013 as a natural gas substitute<\/li>\n<li>CO\u2082\/Ar \u2013 welding gas for the automotive industry<\/li>\n<li>N\u2082\/air (lean air) \u2013 for the synthetic resin and chemical industries<\/li>\n<li>SO\u2082\/N\u2082 and Cl\u2082\/Ar \u2013 for special applications<\/li>\n<li>Natural gas\/H\u2082 \u2013 for hydrogen enrichment for test institutes and the energy transition<\/li>\n<\/ul>\n<p>In addition, LT manufactures gas mixing systems for various C-gases to produce natural gas substitutes for test institutes. In general: whether neutral, flammable, corrosive or aggressive gases \u2013 LT GASETECHNIK has a proven solution for almost every gas type.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How is the availability of gas mixers and gas mixing systems increased?&#8221; tab_id=&#8221;zusatz-verfuegbarkeit&#8221;][vc_column_text css=&#8221;&#8221;]Availability can be increased by various measures. The most important option is a redundant system: all components are duplicated, and the second system takes over automatically if the first fails. Should the gas supply to both gas mixers fail, LT GASETECHNIK recommends a bundle supply with pre-mixed gas as a final fallback.<\/p>\n<p>A bypass line provides additional safety: it engages purely mechanically or automatically if the mixer fails or the gas analysis reports a deviation \u2013 typically, pre-mixed gas (bundle supply) or neutral gas (e.g. nitrogen) is then provided via a bypass system.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text][\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;unternehmen&#8221;]<div class=\"grve-element grve-hr grve-line-divider\" style=\"\"><\/div>[vc_empty_space height=&#8221;2px&#8221;]<div class=\"grve-element grve-hr grve-space-divider\" style=\"\"><\/div><h2 class=\"grve-element grve-align-left grve-title-no-line grve-h2\" style=\"\"><span>LT GASETECHNIK Profile \u2013 Manufacturer of Gas Mixers, Pressure Regulators &amp; Special Systems<\/span><\/h2>[\/vc_column][vc_column][vc_tta_accordion active_section=&#8221;1&#8243; collapsible_all=&#8221;true&#8221;][vc_tta_section title=&#8221;What services does LT GASETECHNIK offer?&#8221; tab_id=&#8221;lt-dienstleistungen&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK offers a comprehensive range of services in the field of technical gases \u2013 everything from a single source. These include consulting, conceptual and detailed planning, engineering as well as design and programming of measurement, control and automation systems including gas analysis technology. Manufacturing, testing and commissioning of the systems are carried out entirely at LT GASETECHNIK, supplemented by complete documentation with CE marking, risk analysis and SIL classification where required.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How long has LT GASETECHNIK existed and how has the company developed?&#8221; tab_id=&#8221;lt-geschichte&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK was founded in 1971 and has continued to develop steadily since then. The company currently employs just under 40 staff and achieves an annual turnover of between 2 and 5 million euros with healthy average annual growth. For over 50 years, LT GASETECHNIK has been one of the world&#8217;s leading manufacturers of gas technology solutions, with more than 2,000 installed reference systems in over 35 countries.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What areas of expertise does LT GASETECHNIK cover?&#8221; tab_id=&#8221;lt-fachgebiete&#8221;][vc_column_text css=&#8221;&#8221;]The company combines extensive know-how in the areas of gas applications, process engineering, electrical engineering and manufacturing. Many employees have many years of experience in the technical gas industry and bring in-depth knowledge of gas and thermal processes. This broad range of expertise enables LT GASETECHNIK to develop tailor-made solutions for complex gas technology requirements \u2013 from consulting through engineering to manufacturing and commissioning.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What are the core competencies of LT GASETECHNIK?&#8221; tab_id=&#8221;lt-kernkompetenzen&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK is a manufacturer of technical gas systems for gas pressure regulation, gas conditioning and gas mixing in the performance range of 0.1 to 10,000 Nm\u00b3\/h. All systems are delivered turnkey \u2013 custom-built in cabinets, open steel frames or containers, depending on technical requirements and local conditions.<\/p>\n<p>The product range includes:<\/p>\n<ul>\n<li>Gas mixers for protective gas, forming gas, welding gas and fuel gas supply (standard: 15 to 500 Nm\u00b3\/h)<\/li>\n<li>Gas mixing systems for SNG production and natural gas substitution<\/li>\n<li>Dome pressure regulators (LTD-1, LTD-2, LTD-3) and pressure regulation stations<\/li>\n<li>Safety fittings for autogenous engineering and industrial gases<\/li>\n<li>Gas analysis with IoT options<\/li>\n<\/ul>\n<p>All systems are manufactured in Germany in accordance with ISO 9001:2015 and the Pressure Equipment Directive, and delivered with T\u00dcV approval, ATEX conformity and SIL-compliant gas analysis as required.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What sets LT GASETECHNIK apart from the competition?&#8221; tab_id=&#8221;lt-usp&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK stands for &#8220;beyond standards&#8221; \u2013 solutions that go above and beyond the standard, tailor-made, individual and fit for purpose. This is reflected in concrete advantages:<\/p>\n<ul>\n<li>Experience with process-engineering-demanding solutions at extreme temperatures, pressures and with corrosive gases<\/li>\n<li>Industry 4.0: Remote access, connection to process control systems, gas mixers with their own homepage<\/li>\n<li>Durable quality: Products in service for over 30 years \u2013 LT continues to support systems even after 15 years<\/li>\n<\/ul>\n<p>The total cost of ownership (TCO) speaks in favour of LT: robust design, simple maintenance and long service life make LT products economically superior.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;What is the origin of the name LT GASETECHNIK?&#8221; tab_id=&#8221;lt-name&#8221;][vc_column_text css=&#8221;&#8221;]&#8221;LT GASETECHNIK&#8221; stands for &#8220;L+T GASETECHNIK Kl\u00f6pper-Waldmann GmbH &amp; Co. KG&#8221;, which is why many also know the company as &#8220;L + T&#8221; (spoken &#8220;L and T&#8221;). Today we abbreviate this to LT, LTG or LT GASETECHNIK. Not to be confused with LNT Gasetechnik, a former market participant that is no longer active.<\/p>\n<p>The company was originally named after its founders in 1971: Ludewig + Tillmann Gasetechnik, which was later shortened to L+T. Both founders had previously held management positions at Witt Gasetechnik and brought their gas technology expertise to the new company.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;Where can I find current information about LT GASETECHNIK?&#8221; tab_id=&#8221;lt-aktuelle-infos&#8221;][vc_column_text css=&#8221;&#8221;]Current information, news and practical examples can be found on our blog. We regularly publish articles on technical topics such as gas mixers, pressure regulation technology and the energy transition. On LinkedIn, you can follow the LT GASETECHNIK company profile to stay informed about current projects and industry news.[\/vc_column_text][\/vc_tta_section][vc_tta_section title=&#8221;How many reference installations does LT GASETECHNIK have worldwide?&#8221; tab_id=&#8221;lt-referenzen&#8221;][vc_column_text css=&#8221;&#8221;]LT GASETECHNIK has realised more than 2,000 gas mixer reference installations in over 35 countries worldwide, from standard solutions to highly complex, customer-specific gas mixing systems. In addition, 250 customer-specific gas mixing systems have been delivered, approximately 90 of which include hydrogen blending.<\/p>\n<p>Regular customers include well-known industrial gas companies such as Linde (framework contract supplier since 2015), Air Liquide, Praxair\/Nippon and Air Products. Further customers come from the automotive industry (Mercedes, VW, Porsche, BMW), the glass industry (Pilkington, Saint-Gobain), the steel industry (ThyssenKrupp, Aurubis), electronics (Siemens, ABB) and chemicals (BASF, Evonik). Research institutes such as the Gas and Heat Institute Essen or TU Munich also rely on LT technology.[\/vc_column_text][\/vc_tta_section][\/vc_tta_accordion][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;2px&#8221; el_id=&#8221;angebotanfragen&#8221;][vc_empty_space height=&#8221;70px&#8221; el_id=&#8221;kontakt&#8221;]<div class=\"grve-element grve-box-icon grve-align-center\" style=\"\">  <div class=\"grve-icon grve-large grve-simple grve-no-shape grve-color-primary-1 fa fa-at\"><\/div><\/div>[vc_column_text css=&#8221;&#8221;]\n<h3 style=\"text-align: center;\">Do you have a question or would you like to request an individual quotation?<\/h3>\n<p style=\"text-align: center;\">Please get in touch with us \u2013 at the following email address:<\/p>\n<p style=\"text-align: center;\"><a href=\"mailto:mail@lt-gasetechnik.com\">mail@lt-gasetechnik.com<\/a><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row]\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]Do you have questions about SNG systems, gas mixers or dome pressure regulators? In our FAQ section you will find well-founded answers on the products and services of LT GASETECHNIK. Whether propane\/air gas mixing systems, selecting the right gas mixer (smart, comfort or advanced), commissioning, operation or pressure regulation technology \u2013 our experts have [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"parent":3938,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-32658","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Frequently asked questions (FAQ) - LT GASETECHNIK<\/title>\n<meta name=\"description\" content=\"Find expert answers on gas mixers, SNG systems and dome pressure regulators. 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