WEH^® Valve Technology

Reliable backflow prevention with minimal space requirements

Reliable backflow prevention in every application

Whether in mechanical engineering, conveyor technology, or chemical industries – wherever liquids or gases must flow in defined directions, robust check valve solutions are required. Especially at high pressures, with sensitive media, or in compact installation spaces, maximum tightness, durability, and reliability are crucial.

Check valves & screw-in valves – precisely matched & practical

WEH offers a wide range of check and screw-in valves made of stainless steel, steel, and brass – suitable for hydraulic, pneumatic, media, and process applications up to 300 bar. Depending on the application, ball or cone seals are used. Miniature versions for tight installation spaces are also available.

Your Benefits

Maximum tightness & safety

Valve seals located outside the media flow protect against damage – ensuring reliable tightness even with dirty media.

Durable & robust construction

High-quality materials such as stainless steel, galvanized steel, or brass protect against corrosion and wear – for long service life.

High flow rate with compact design

Thoughtful flow design and minimal opening pressure ensure high efficiency and low pressure losses.

Practical product range

Wide selection of connection sizes, opening pressures, and variants.

Overview of valves

Check Valves

Backflow prevention for gaseous and liquid media – available in stainless steel, galvanized steel, and brass. Suitable for pressures up to 300 bar, with soft or metal-sealing variants

Screw-in Valves

Compact valves for direct integration into block systems – soft-sealing, low-maintenance, and pressure-resistant up to 250 bar. Ideal for hydraulic and pneumatic applications.

Find the Right Product Now

Looking for a customized check valve?

We design your solution.

Not every system offers enough space – and standard valves don’t always fit. That’s why WEH develops custom check valves.

Whether limited installation space, specific opening pressure, or special media – our modular valves can be flexibly configured and ensure optimal performance with suitable materials and seals.

Custom-made check valves

Typical application

Controlling the backflow of media

Check and screw-in valves from WEH^® prevent unwanted backflow of media in sensitive process chains. The reliable one-way function ensures pressure conditions, protects components, and ensures stable processes.

Learn more

Find the right solution faster!

Our products are as individual as your application. To provide you with fast and tailored support, please download the document, fill it out, and send it back to us. Our product experts will then get in touch with you promptly.

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