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Kunkle Valve Models 189/363/389 Safety Relief Valves
Models 189/363/389 Safety Relief Valves
Heavy duty ASME Section VIII and Section XII, air/gas cryogenic, ‘UV’, National Board certified safety valves


  • Heavy duty construction provides long service life.
  • Unique three-piece disc assembly with PTFE seat/seal offers superior leak-free performance over the entire pressure/temperature operating range.
  • Control ring offers precise blowdown adjustment.
  • Pivot between disc and spring corrects for misalignment and compensates for spring side thrust.
  • Every valve 100% tested/inspected for set pressure, blowdown and leakage.
  • All adjustments factory sealed to prevent tampering and disassembly.