Solutions for Mechanical and Plant Engineering – WEH® Quick Connectors, High-Pressure Technology & Check Valves
For decades, WEH has been a trusted partner to the industry, offering a broad portfolio of field-proven solutions – from quick connectors and check valves to Ultra High Pressure components. Discover how our products simplify testing processes, safely control media, and efficiently connect hydraulic systems – ensuring stable operations and maximum availability.
Common applications
Pressure and Leak Testing in Mechanical and Plant Engineering
Backflow control of media
Check valves reliably prevent the backflow of liquids or gases – for increased safety and long-lasting systems.
Connecting hydraulic lines
Fast, leak-tight, and tool-free: With flat-face couplings, hydraulic lines can be connected and disconnected in seconds – without leaks or contamination.
High-pressure testing
Test systems and components for pressure resistance – with robust, modular components and systems for test pressures up to 10,000 bar / 150,000 psi.
High-Pressure hydraulic applications
For the construction of high-pressure systems, WEH offers durable components and systems with high flow capacity – ideal for presses, test rigs, and more.
Your solution starts here: Our products & systems
WEH<sup>®</sup> Quick Connectors – Simple Connections for Testing & Filling
With WEH® Quick Connectors, you can create pressure-tight connections in seconds – completely without screwing. Ideal for testing and filling processes on pipes, threads, hoses, or fittings in series production, development, and maintenance.
✔ Easy handling
✔ High process reliability
✔ For media connections & test connections
Ultra High Pressure Solutions – Safe. Durable. Versatile
The components and systems from WEH® are designed for extreme demands up to 10,000 bar / 150,000 psi – featuring Cone & Thread connections and maximum leak-tightness even under the harshest conditions.
✔ High-quality materials
✔ High flow rates
✔ For hydraulics, isostatics & more
WEH<sup>®</sup> Check Valves – Reliable Media Stop
For hydraulic and pressure systems where media should flow in only one direction. WEH® check valves and screw-in valves protect components and enhance operational safety.
✔ Backflow prevention
✔ High leak-tightness & durability
✔ Low wear & maintenance-friendly
WEH<sup>®</sup> Flat-Face Couplings – Clean & Fast Connections
Frequent line changes in hydraulic systems? WEH® flat-face quick connect couplings are made for just that. Simple, drip-free, and connectable with one hand – for smooth operations.
✔ Flat-sealing design
✔ Leak-free disconnection
✔ Safety locking mechanism
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.