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Birkett Safeset Series Pilot-Operated Safety Relief Valves
Brand: Emerson Electric Co.Pop action and modulating pilot operated safety valves with a unique full nozzle design and dimensions to API 526.
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.
- Soft pilot and main valve seats in a range of material options provide optimum leak tightness and reduce maintenance.
- Adjustable orifice areas within 8 standard body sizes accommodating all 21 standard orifice sizes.
- Integral sensing gives a compact design and accurate pressure sense from within the flow stream.
- Remote pilot sensing option ensures trouble free operation even with high inlet pressure losses.
- Dual outlet, full bore model available for high capacity duties.
