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Pilot Operated Safety Valve

Full lift at set pressure, ideal near operating pressure.

Safety Valve Series

Pilot Operated Safety Valve

Full lift at set pressure, ideal near operating pressure.

As part of the VTXFLOW safety valve range, the pilot operated safety valve is produced under our certified quality system — from in-house casting and CNC precision machining to 100% pressure and seat-tightness testing before shipment. Our safety and safety-relief valves protect vessels, boilers and piping from overpressure. Spring-loaded and pilot-operated designs are set, tested and sealed in-house on certified test benches.

  • Every valve set and seat-tightness tested to API 527
  • Blowdown adjustable via control rings
  • Bellows option isolates spring from back-pressure
  • Lifting lever options for boiler code compliance
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Pilot Operated Safety Valve
Pilot Operated Safety Valve — VTXFLOW Safety Valve Series

Technical Specifications

Size Range3/4" – 12" inlet (DN20 – DN300)
Set Pressure0.1 – 42 MPa
Body MaterialsWCB, WC6, CF8, CF8M, A105
Design StandardsASME BPVC Sec. I & VIII, API 526, API 527, GB/T 12243
Temperature Range-196°C to +600°C

Typical Applications

Steam boilersPressure vesselsRefinery relief systemsGas storageHeat exchangers

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