Description
WEH® Check Valve TVR2 Gas, inert/flammable gases, max. 420 bar
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 comply with the European Pressure Equipment Directive PED 2014/68/EU and are also available complete with relevant seals for use with oxygen.
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 | 350 bar (5,000 psi) |
Max. allowable operating pressure PS | 420 bar (6,090 psi) |
Cracking pressure PC | 0.15 ± 0.05 |
Temperature range | +5 °C up to +95 °C |
Medium | Inert/flammable gases |
Housing material | Inert/flammable gases, Cone seal of PEEK / corrosion resistant steel |
Sealing material DW | EPDM |
Sealing concept | Inert/flammable gases: Cone seal of PEEK / corrosion resistant steel |
Directive | PED 2014/68/EU |
Media inlet B1 | UNF 1 3/8"-12* external thread, SAE J514 |
Media outlet B2 | UNF 1 3/8"-12* external thread, SAE J514 |
Leak rate | 5 x 10-3 mbar x l/s |
Flow Direction | B1 -> B2 |
Part No. | C1-77200 |
Application
Check valve for use with inert gases and for mounting into gas mixing plants. Also suitable for vacuum applications.
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