Robust Solutions for Off-Highway Applications –
WEH® Components for Construction, Agricultural & Forestry Equipment
Construction sites, fields, forests, or mines – in the off-highway sector, machines are exposed to extreme conditions every day: dirt, moisture, vibrations, and temperature fluctuations. Downtime is costly – and critical to safety. That’s why robust, reliable components are essential. WEH delivers exactly that: flat-face quick connect couplings for hydraulic lines, durable quick connectors for testing processes, and safe H2 and CNG refueling components for alternative drives. Our solutions have proven themselves worldwide – in construction and agricultural machinery, mining, and forestry.
Common applications
Pressure and leak testing
With WEH® quick connectors, you can test cylinders, lines, and valves quickly, safely, and without screwing – even at high pressures.

Connecting hydraulic lines
Our flat-face quick connect couplings ensure leak-free connections even under harsh conditions – for greater efficiency and environmental protection.
Refueling H2
WEH® Hydrogen components enable standard-compliant hydrogen refueling at 25 / 35 / 70 MPa – for sustainable mobility.
Refueling CNG
Your solution starts here: Our products & systems
WEH® Quick Connectors – Test Connections in Seconds
With WEH® Quick Connectors, you can create pressure-tight test connections in seconds – completely without screwing. Ideal for series testing and maintenance of hydraulic lines and components with threads, pipes, hoses, or other fittings.
✔ Easy handling
✔ Suitable for a wide range of connection types
✔ Robust design for continuous use
WEH® Hydrogen Refueling Components – Safe Hydrogen Refueling
Whether for construction, agricultural, or specialty machinery: WEH® Hydrogen components enable reliable refueling at 35, 70, or 25 MPa – even under harsh conditions. Ideal for mobile applications where zero-emission energy is essential.
✔ Robust technology
✔ Optimized flow for fast refueling
✔ Tested safety according to international standards
WEH® CNG Refueling Components – Efficient Use of Natural Gas
For off-highway vehicles powered by natural gas or biogas, WEH® offers a well-designed system of tank and dispenser components – from receptacles to breakaway couplings. Engineered for extreme conditions and maximum operational safety.
✔ Ideal for alternative drives in construction, forestry & mining
✔ Durable, robust & easy to service
✔ Globally proven NGV1 technology
WEH® Flat-Face Quick Couplings – Fast and Clean Connections
The robust flat-face couplings are specifically designed for connecting hydraulic lines. They impress with easy handling, leak-free performance, and high impact resistance – perfect for the tough demands of off-highway operations.
✔ Flat-sealing design
✔ Easy one-handed operation
✔ Environmentally friendly, leak-free disconnection
Discover & Download
Downloads
Catalogs
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

































