check valve
| Size | 2” up to 56“ (DN 15 up to DN 1400) |
|---|---|
| Pressure rating | ASME 150 Class to 2500 Class / PN10–PN420 |
| Materials : | Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Low alloy steel , Nickel Alloys, Nickel Aluminium Bronze, Hastelloy, Inconel, Monel, Nickel, Titanium, Alloy & Carbon Steel with Internal Corrosion Resistant Alloy (CRA) Overlay |
Applicable standards
- Design& Manufacture: BS 1868 / ASME B16.34 / API 6D
- Face to Face: ASME B16.10 / API 6D / EN 558.1 / DIN 3202
- Flange Ends: ASME B16.5 / ASME B14.47 / EN 1092-1
- Butt-weld Ends: ASME B16.25 / EN 12627
- Inspection and test: API 598 / API 6D / EN 12266 / ISO 5208 / ISO15848-1&2 / BS6364
Construction Details
- Bolted Cover / Pressure Seal Bonnet, Lift Check Type, Swing Check, Piston Check, Tilting Disc, Non – Slam Check
End Connection
- Flanged (RF,FF,RTJ) , Hub End, Butt-Weld
Check Valves are Available in Below Types
- Swing Type Bolted Bonnet
- Piston type check valves
- Non-Slam Check Valves
- Tilting Disc type
- Nozzle type
Cryogenic Service
- Check Valve can be designed in a special version suitable for cryogenic service. In this case, all the materials and technical features are designed to withstand minimum design temperature required by the Customer, down to Cryogenic -196°C. If required by the customer, specific Cryogenic Tests are performed to verify the behaviour of valves sealing capability, emissions vs the ambient.