Birkett Safeset Series Pilot Operated Safety Relief Valves
Pop action and modulating pilot operated safety valves with a unique full nozzle design and dimensions to API 526.
Key Features
- Unique full nozzle design reduces seat stresses, inlet pressure losses, increases discharge co-efficient and enables lower specification body materials on corrosive duties.
- All process wetted parts in stainless steel as a minimum, reducing seal contaminations and prolonging service life.
- Non-flowing pilot eliminates freezing risk, improves service life and ensures trouble-free operation.
- System pressures of 95% to 98% of set pressure possible.
- Full lift capability against high levels of back pressure.
- Pop action pilots adjustable for zero overpressure and blowdown equal to 3% of set pressure.