Kunkle Bailey 756 Safety Relief Valve

The 756 safety valve combines a top piston guided valve and an unobstructed seat bore with a full lift capability, giving maximum discharge capacity


  • Design incorporates an adjustable blowdown ring.
  • Meets all the requirements of BS6759 Part 1.
  • Freely pivoting disc and precision lapped stainless steel trim give positive re-seating for steam duty.
  • Fitted with a test lever for inline testing as standard.

General Application

The 756 is ideally suited to applications on steam boilers and pipelines where blowdown tolerances are critical.

Technical Data

Material: Carbon steel
Sizes: 1” to 3” (DN 25 to 80)
Connections: Flanged
Pressure range: 5 to 348 psig (0.35 to 24 barg)
Temperature range: -20°F to 572°F (-29°C to 300°C)