Kunkle Safety Relief Valves Models 6010, 6021, 6030, 6182, and 6283

ASME Section I and VIII, steam, “V” and “UV,” ASME Section VIII, air/gas “UV” National Board certified

Model 6010: Side outlet. Full nozzle design with bronze/brass trim.

Model 6021: Same as model 6010 with Teflon® (PFA) disc insert.

Model 6030: Same as model 6010 except stainless steel trim (nozzle and disc).

Model 6182: Top outlet. Full nozzle design with bronze/brass trim.

Model 6283: Over-sized side outlet. Full nozzle design bronze/brass trim.

Product Features

  • O-ring seats available for exceptional leakfree performance, reduced maintenance cost, multiple cycles with tight shutoff, improved seating integrity
  • Wide hex on valve nozzle provides wrenching service clearance for easy installation
  • Grooved piston model disc reduces sliding area and friction
  • Dual control rings offer easy adjustability for precise opening with minimum preopen or simmer and exact blowdown control
  • Pivot between disc and spring corrects misalignment and compensates for spring side thrust


  • ASME Sections I and VIII
  • Pressure and temperature limits vary with service — see specifications sheet
  • V Stamp, UV Stamp


  • Air
  • Gas
  • Steam
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