WEH® Components for Gas Technology
Safe & durable components
for plants and systems
Mastering demanding gas technology with confidence
Technical gases place the highest demands on components: pressure, tightness, purity, and compatibility must be precisely coordinated. Whether oxygen, nitrogen, or mixed gases – when building, filling, and controlling gas-operated systems, absolute reliability is required. Gas system manufacturers and operators expect durable solutions with maximum safety, easy maintenance, and standards-compliant functionality.
Reliable quality components for modern gas processes
For over 40 years, WEH® has been delivering robust and maintenance-friendly components for gas technology – manufactured from high-quality materials, certified according to ISO 9001 and the Pressure Equipment Directive 2014/68/EU. Our portfolio includes shut-off valves, check valves, filters, and vacuum overpressure safeguards for inert, combustible gases, and oxygen. The products are compact, process-safe, and used worldwide – from industrial gas applications to medical and laboratory technology as well as gas mixing systems.
High operational safety
Robust construction and 100% final inspection ensure reliable function and safety.
Pure & media-compatible
Suitable for oxygen, combustible & inert gases – thanks to tested materials & burn-off tests.
Certified quality
“Made in Germany,” ISO 9001, Pressure Equipment Directive, and optional oxygen cleaning for sensitive media.
Durable & low maintenance
Robust design and high-quality materials ensure minimal maintenance and maximum service life.
Flexible integration
Various connection options for modular system concepts & easy retrofitting.
Shut-Off Valves
For filling, mixing & controlling in gas mixing systems – with manual or pneumatic actuation.
Pressure relief module
Protect vacuum pumps from overpressure – with internal or external venting.
Filter Gas
Check Valves for Gas
Quick Connectors
Accessories
Reliable & secure since 1983
As specialists in the gas sector, we have been developing safe and reliable components for renowned manufacturers worldwide for more than 40 years. Technical gases are used in virtually every industry and in many industrial processes. In addition to the production of other mixed gases, they are also used in medical technology, pharmaceuticals, chemicals, food technology and many other areas.
In order to produce or use high quality gases in a reliable manner, you need reliable and powerful process plant technology that also meets the highest economic demands. Over the years, the product range has been continuously expanded, so that today numerous components required for plants for mixing, evacuating, and filling gases are available.
Structure of gas technology plants & systems
Secure shut-off, filtration & backflow prevention – for reliable processes with inert and combustible gases.
Filling / evacuating technical gases
Whether CO₂, nitrogen, or specialty gas – with WEH® Filling Connectors, gas filling is safe, process-clean, and free from time-consuming screwing.
Filling / evacuating breathing air & oxygen
For breathing air and oxygen cylinders: WEH® Quick Connectors ensure fast, tight connections – completely tool-free, with maximum user protection.
Testing of oxygen and breathing air cylinders
Pressure and leak testing of gas cylinders often involves a great deal of time and effort. With WEH ® Test Connectors, all this can be done in a single step—without any screwing.
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Why WEH?
Quality at WEH
Quality is standard at WEH thanks to 100% final inspection and certified processes.
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By choosing a WEH® product, you’ve chosen long-lasting quality.
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Questions about application, technology, or spare parts? Our team is here for you