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WEH® Check Valve TVR2 Gas - Series

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  • High leak tightness
  • Very low noise when in use due to the optimised internal gas flow
  • Wear and corrosion resistant
  • Robust construction
  • Simple installation
Description
WEH® Check Valve TVR2 Gas - Series
The WEH® TVR2 gas check valves were developed specifically as non-return protection for the installation in systems, pipelines and extraction points for gaseous media.
They offer reliable protection against return gas flow and the formation of hazardous gas mixtures.

Check valves are used wherever a medium should flow in only one direction through a line and the reverse direction must be safely shut off.

The seals will not be damaged by the medium, as the valve seals are fitted outside the area of flow. The check valves therefore not only guarantee optimal sealing and minimal leakage, they also have a very long service life and are highly robust.

The minimal cracking pressure of the check valves ensures particularly low-noise operation even at high throughput rates.

The check valves are available for inert/flammable gases and for oxygen and come complete with the seals suitable for the relevant medium. All check valves comply with the European Pressure Equipment Directive PED 2014/68/EU. If the check valves are to be used with oxygen they undergo an additional adiabatic ignition test.
Features
  • High leak tightness
  • Very low noise when in use due to the optimised internal gas flow
  • Wear and corrosion resistant
  • Robust construction
  • Simple installation
Technical Data
Nominal bore DN 12 mm
Nominal pressure PN 5,000 psi (350 bar)
Max. allowable operating pressure PS 6,090 psi (420 bar)
Cracking pressure PC 0.15 ± 0.05
Temperature range +41 °F up to +140 °F (O₂)
+41 °F up to +203 °F
Medium Oxygen
Inert/flammable gases
Material Inert/flammable gases, Cone seal of PEEK / corrosion resistant steel
Oxygen, Cone seal of copper / Monel®
Sealing material EPDM
Valve seat Inert/flammable gases: Cone seal of PEEK / corrosion resistant steel
Oxygen: Cone seal of copper / Monel®
Directive PED 2014/68/EU
Adiabatic ignition test available
Leak rate 5 x 10-3 mbar x l/s
Application
Check valve for use with gaseous media and for mounting into gas mixing plants.Also suitable for vacuum applications.
Downloads
Document type Format Size Download
Datasheet PDF 226 KB
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