The Risbridger RIS-STOP-3P-14231 is a normally closed, fail-safe and testable mechanical overfill prevention valve for pressure-fill fuel storage tanks. Suitable for above- and below-ground installations, this configuration is supplied with a 4 m drop tube, flexible connector and inlet adaptor.
It has a 4" BSPT threaded base, a 2" BSPT threaded float with a 1,200 mm float tube, and a 4" PCAT to 3" PCAT flexible connector. A 3" BSP female to 3" PCAT inlet adaptor is included for connection to compatible inlet pipework.
Key features
- Normally closed, fail-safe mechanical overfill prevention valve
- Suitable for pressure-fill fuel storage installations
- 4" BSPT threaded base
- 2" BSPT threaded float with 1,200 mm float tube
- Supplied with a 4 m drop tube
- Supplied with a 4" PCAT to 3" PCAT flexible connector
- Supplied with a 3" BSP female to 3" PCAT inlet adaptor
- Flow operating range: 10 to 1,500 litres per minute
- Operating pressure range: 0.15 to 5 bar; tested to 8 bar
- Operating temperature range: -25°C to +60°C
Fuel suitability
- Petroleum spirit, including ethanol blends up to 90%
- Diesel and biodiesel/FAME blends
- Avgas and jet fuel
Important information
The RIS-STOP-3P 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.