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Kunkle Valve Series 6000 Safety Relief Valves
Series 6000 Safety Relief Valves
Bronze safety valves to ASME section I and VIII, steam, ‘V’ and ‘UV’; section VIII, air/gas, ‘UV’ National Board certified including models to ASME section IV, steam ‘HV’.
PED certified for non-hazardous gas


  • O-ring seats available for exceptional leak-free performance, reduced maintenance cost, multiple cycles with tight shutoff and improved seating integrity.
  • Heavy duty casting.
  • Wide hex on valve nozzle provides clearance for easy installation.
  • Seats lapped to optical flatness.
  • Dual control rings offer easy adjustability for precise opening with minimum pre-open or simmer and exact blowdown control.
  • Pivot between disc and spring corrects misalignment and compensates for spring side thrust.
  • Grooved piston type disc reduces sliding area and friction.
  • Heavy duty lift lever assembly.
  • Each valve tested and inspected for pressure setting and leakage.


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