WEH® Check Valve TVR200-S1 stainless steel, 0 - 250 bar - Product family

Type & Dimension of Inlet/Outlet
Cracking pressure PC
Please select variant!

The WEH® TVR200 Check valves made of stainless steel are ideal for applications with liquid and gaseous media up to max. 250 bar.
The possible applications are just as varied as the design and the materials used.
The check valves are available in various connection configurations, such as double ferrule fittings, female and male threads and a nominal bore of up to 6 mm. For larger nominal bores the WEH® TVR2 Check valve is available.

Due to the high quality materials they are extremely wear-resistant, corrosion-resistant and durable. The check valves, which are very silent in use under high flow rates, are characterized in particular by their very low cracking pressure and their optimum tightness which depends, among other things, on the setting of the cracking pressure.

The WEH® TVR200 are equipped with a ball seal. The internal seals are arranged so that they are protected from the media flow. This prevents damage to the seals from any dirt particles on the sealing components within the unit.

WEH® TVR200 Check valves are equipped with a FKM seal as standard.
Other sealing materials are available on request. It is the customer‘s responsibility to clarify the media compatibility.

Nominal bore (DN)
Acc. to design
Max. allowable operating pressure PS
250 bar (3,600 psi)
Cracking pressure PC
0.1 bar / 0.5 bar
Temperature range
-40 °C up to +200 °C
Housing material
Stainless steel
Spring material
Stainless steel
Sealing material
Sealing concept
Ball sealing
Media inlet B1
Tube Ø 6 mm, Ø 8 mm, Ø 10 mm, Ø 12 mm
G1/8", G1/4"
NPT1/8", NPT1/4"
Media outlet B2
Tube Ø 6 mm, Ø 8 mm, Ø 10 mm, Ø 12 mm
G1/8", G1/4"
NPT1/8", NPT1/4"
Leak rate
1 x 10-4 mbar x l/s
Flow Direction
B1 -> B2
Product series
Marketing Features
  • High leak tightness
  • Low cracking pressure
  • Low-noise opening and closing
  • Max. operating pressure up to 250 bar
  • Seals are protected from the media flow
  • Stainless steel
  • Wear and corrosion resistant

The WEH® TVR200 Check valves were only developed for reliable return flow prevention in a gaseous or liquid media flow. They are not designed to be used as filling or safety valves.

The WEH® TVR200 Check valves are used in mechanical and plant engineering, chemical / pharmaceutical industry, conveyor technology, food industry, medical technology, etc.

CAD Files
Data sheets
Data sheet EN 776 KB
Data sheet DE 775 KB
Operating instructions
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