The Risbridger RIS-STOP-2SF-R-03 is a tank-top pressure overfill prevention valve for lubrication oil storage tanks. Designed for oils with a viscosity higher than SAE10, it provides automatic overfill protection during pressure deliveries while also acting as an anti-syphon valve in its normally closed position.
This version has a 2" male BSPT base and is supplied with a 2" female BSPT steel weld socket for tank-lid installation. Its compact four-bolt flanged inlet allows the incoming delivery pipework to be connected securely while maintaining a practical tank-top installation arrangement.
Key features
- Pressure overfill prevention valve for lubrication oils with viscosity higher than SAE10
- Suitable for tank-top installation
- 2" male BSPT valve base with supplied 2" female BSPT steel weld socket
- Operating flow range: 10 to 600 litres per minute
- Suitable for delivery pressures up to 8 bar maximum
- Compact four-bolt flanged inlet connection
- Cartridge construction allows access for inspection and testing without dismantling pipework
- No dynamic seals
- Normally closed operation provides an anti-syphon function
Installation and operating information
- Approximate fluid shut-off level: 135 mm below the top surface of the tank lid
- Install using the specified weld socket; the valve will not operate correctly with a standard socket arrangement.
- This valve is not a zero-leakage shut-off valve and must not be used as an alternative to a shut-off valve in continuously pressurised systems.
Materials
- Anodised aluminium
- Stainless steel
- Viton A (FKM)
- HDPE closed-cell foam
Materials:
* Anodised Aluminium
* Viton A (FKM)
* Stainless Steel
* HDPE Closed cell foam