The Corroflex® CF300-B non-return valve is used in high pressure pipelines, and prevents an undesirable flow in the opposite direction to the main flow direction. Mounted in the high-pressure area of manifolds of industrial gas supply systems, the CF300B protects the compressed gas cylinders against transfer in the event of incorrect operation. The CF300B can be used in supply systems for inert, flammable and oxidizing gases up to 4.5 level purity.
Not suitable for use with Corrosive gases
Special Features
The unique seat seal design and the use of selected gas-wetted parts allow the use with oxygen up to 300 bar working pressure. The Oxygen ignition test for non-metallic seat sealed check valves which is required during development phase can be omitted with the CF300B due to targeted material selection.
- Compact design
- Designed and approved in accordance with relevant sections of EN ISO 10297:2015
- Specially cleaned
Technical Data
- Working temperature: -20 °C to +60 °C
- Inlet connection: NPT 1/4 “ female
- Outlet connection: NPT 1/4 “ male
- Max. working pressure: 300 bar
- Cv-value: 0,29
- Pressure drop at inlet pressure 41 bar and flow 20 m3/h (N2) 0,5 bar
- Pressure drop at inlet pressure 41 bar and flow 100 m3/h (N2) 3,8 bar
- Length: 54 mm
- Leakage rate seat: < 10 cm3/h (23 °C | 1,013 bar absolute) compressed air
- Leakage rate outside: < 50 cm3/h (23 °C | 1,013 bar absolute) compressed air
- Weight: 0,07 kg
Material gas wetted parts:
- Valve body: Brass
- Filter: Sinter Bronze SIKA-B
- Valve seat: Ceramic (Si3N4)
- Spring: Stainless Steel 316L
Test in production:
- Pressure test with dry air (ISO 8573 (1:2:2) for each valve
- Test leak rate seat with dry air (ISO 8573 (1:2:2) for each valve
Approvals during development:
Type test in accordance with relevant sections of EN ISO 10297:2015
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CF300 Brass Non-Return Valve, 300 Bar Working Pressure
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