Kunkle Safety Valves Models 910 and 911

ASME Section VIII, air/gas/steam/liquid, “UV” National Board certified

Model 910: Carbon Steel (CS) body and bonnet with Stainless Steel (SS) trim.
Model 911: All SS construction.

Product Features

  • Available with soft seats
  • Threaded cap standard
  • Hex on valve nozzle provides for easy installation
  • Warn ring offers easy adjustability
  • Pivoting disc design offers exceptional seat alignment
  • Guide to nozzle ratio reduces friction
  • Valve bodies are heavy duty casting
  • Full nozzle design for optimum flow performance
  • Threaded side outlet for piped off discharge to eliminate fugitive emissions


  • ASME Section VIII
  • Sizes 1/2″ to 2″
  • Model 910: Pressures to 1400 psig; Temperatures from -20° to 800°F
  • Model 911: Pressures to 1400 psig; Temperatures from -320° to 800°F
  • UV Stamp


  • Air
  • Steam
  • Liquid


  • Air/gas compressors, intercoolers, aftercoolers.
  • Liquid filled pressure vessels/systems, ASME Section VIII (UV).
  • Vacuum systems including pumps, tanks and equipment.
  • Pressure vessels – containing gas, air, liquid or steam, including tanks and receivers.
  • Oil/gas separators.
  • Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
  • Bypass relief or pressure regulation.
  • All SS Model 911 may be suitable for sanitary/edible applications.
  • Process and industrial corrosive applications.
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