WEH® Pressure relief module
Effective protection for vacuum pumps & more
Protection for components operated under vacuum
In many high-pressure systems, vacuum pumps or sensors are used whose operating pressure is significantly lower than the overall system pressure. A sudden overpressure can damage these sensitive components or render them permanently inoperative.
WEH® Pressure relief module provide a secure solution: they reliably protect vacuum pumps and other system components from excessive overpressure – through targeted venting either into the room or outdoors. Suitable for gas applications, these safeguards can be easily integrated into new or existing systems.
Maximum safety for components
Protects sensitive components from overpressure and residual pressure – ensuring long-term trouble-free system processes.
Service-friendly & low maintenance
Modular design for easy cleaning, durable materials, and robust performance
Reliable pressure relief
Even short-term inlet pressure spikes up to 420 bar are safely reduced to a maximum of 0.2 bar at the outlet
Two versions
For venting into the room or with discharge to the outdoors
Easy integration & retrofitting
Compact design, various connection adapters, and easy retrofitting for existing systems
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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A quick overview of the entire WEH product range.
Operating Instructions
All information on the safe commissioning and use of our products.
Certificates
Our products are tested and certified according to international standards.
Why WEH?
Quality at WEH
Quality is standard at WEH thanks to 100% final inspection and certified processes.
Service
By choosing a WEH® product, you’ve chosen long-lasting quality.
Contact
Questions about application, technology, or spare parts? Our team is here for you