Kunkle Bailey 716 Safety Relief Valve

A safety relief valve that combines a top guided, unobstructed seat bore with full lift capability to provide maximum discharge


  • Positive reseating achieved via freely pivoting EPDM discs for gas, hot water and other liquid duties up to 150°C
  • Optional Aflas soft seats increase the range to 200°C
  • Precision lapped stainless steel trim gives positive re-seating for steam duty at higher temperatures.• Choice of threaded or flanged inlet connections.
  • Fitted with test lever for inline safety checking.
  • Alternative sealed dome for service conditions requiring a pressure tight seal on the discharge side (eg. liquid service).

General Application

the 716 is certified to Bs6759 pt 1, 2, 3 and is suitable for the protection of vessels, pipelines and equipment using hot or cold water; air; process or corrosive liquids; cold and fine gases and for clean steam and gases in hygienic environments.

Technical Data

Material: Bronze, stainless steel
Sizes: ½” to 2” (DN 15 to 50)
inlet: threaded or flanged
Outlet: threaded
Pressure range: 5 to 355 psig (0.35 to 24.5 barg)
Range: -20°F to 500°F (-29°C to 260°C)