Efficient processes and maximum safety in the gas industry
WEH has known the specific demands of this industry for over 40 years. With quick connectors and valves for gas systems and installations, we provide proven solutions for filling, evacuating, testing, and shutting off gases – safely, quickly, and ergonomically. Discover how WEH® makes your processes in the gas industry more efficient, safer, and future-ready.
Common applications
Filling / evacuating of technical gases
Filling / evacuating of medical oxygen
For the sensitive field of medical technology, WEH offers standardized, safe, and easy-to-use filling connectors for oxygen cylinders.
Construction of gas systems & installations
Pressure and leak testing of cylinders
Your solution starts here: Our products & systems
WEH<sup>®</sup> Quick Connectors – Simple Connections for Filling & Evacuating
Connect gas cylinders quickly, safely, and without tools – with WEH® Quick Connectors, gas filling and evacuation are efficient and reliable. The connectors cover nearly all international standards and are ideal for CO₂, technical gases, and medical oxygen.
✔ Handling in seconds – no screwing required
✔ Safe & pressure-tight connections
✔ Compatible with national standards such as DIN, CGA, BS, NF, CEN
WEH® Components for Gas Systems – Safe. Modular. Durable.
Whether gas mixing systems or filling stations – WEH® offers a broad portfolio of components for building complex gas systems. All components are pressure-resistant, corrosion-resistant, and manufactured to the highest quality standards.
✔ Shut-off valves, check valves, filters & pressure relief module
✔ Suitable for oxygen & inert gases
✔ Certified according to the Pressure Equipment Directive & ISO 9001
WEH® Test Connectors – Fast and Safe Testing of Gas Cylinders & Components
For pressure and leak tests on gas cylinders, valves, and systems, WEH® offers precise Test Connectors with easy handling – ideal for end-of-line testing, maintenance, or series testing.
✔ No screwing required – simply push on & test
✔ Suitable for high pressures & complex geometries
✔ Ergonomic & automation-ready
Discover & Download
Downloads
Catalogs
Get a quick overview of the entire range of WEH products – clear, compact and as a PDF for download.
Operating Instructions
All information on the safe commissioning and use of our products – including safety instructions and step-by-step instructions.
Certificates
Our products are tested and certified according to international standards. Here you will find all relevant quality and conformity certificates.
Why WEH?
Quality You Can Rely On
Our products are manufactured to the highest standards. At WEH, quality is no coincidence – it’s our standard, ensured by 100% final inspection and certified processes.
Service You Can Rely On
By choosing a WEH® product, you’ve chosen long-lasting quality. And our service ensures it stays that way. Whether maintenance, inspection, repair, or original spare parts – our experienced team is committed to maximum safety, efficiency, and preserving the value of your equipment.
Fast and Helpful Support
Questions about application, technology, or spare parts? Our technical support team is here for you – direct, competent, and without detours. Personally available and globally reliable.