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Kunkle Valve Models 91/218/228 Safety Relief Valves
Models 91/218/228 Safety Relief Valves
Cast iron liquid relief valves with bronze trim including models UL and FM approved for fire pump installations


  • Bolted bonnet allows easy inspection and servicing without removal from system.
  • Quality cast iron body and bonnet.
  • Insert and disc available in bronze or stainless steel and lapped for tight shut-off.
  • Springs are steel with plating for corrosion protection.
  • High lift, wing-guided disc offers high relieving capacity.
  • Pivot between disc and spring corrects misalignment and compensates for spring side thrust.
  • ANSI B16.1 rated 250# inlet and 125# outlet flanged connections as standard.
  • Optional epoxy-coated internal body and bonnet for corrosive environments (to 125°F (52°C)).