Product

Kunkle Valve Model 6000, 6010, 6021, 6030, 6182, 6121, 6130, 6186, 6283, 6221, 6230, 6933, 6934, and 6935 Air, Gas, and Steam Safety Valves



ASME Section I and VIII, Steam, “V” and “UV,” ASME Section VIII, Air/Gas “UV” National Board Certified. Models 6933, 6934, and 6935 are ASME Section IV, “Steam” “HV” National Board Certified. PED Certified for Non-Hazardous Gas.

Model 6010
Side outlet. Full nozzle design with bronze/brass trim. Available with O-ring seats. For exceptional leak-free performance.

Model 6021
Same as model 6010 with Teflon® (PFA) disc insert. For exceptional leak-free performance (use on steam only).

Model 6030
Same as model 6010 except Stainless Steel (SS) trim (nozzle and disc). Available with O-ring seats for exceptional leak-free performance.

Model 6182
Top outlet. Full nozzle design with bronze/brass trim. O-ring seat available for exceptional leak-free performance.

Model 6121
Same as model 6182 with Teflon® (PFA) disc insert. For exceptional non-leak performance (use on steam only).

Model 6130
Same as model 6182 except SS trim (nozzle and disc). O-ring seat available for exceptional leak-free performance.

Model 6186
Top outlet. Full nozzle design with bronze/brass trim. 150 psig [10.3 barg] maximum set pressure. Replaces Model 86 (original equipment only). For air service only.

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

Model 6221
Same as model 6283 with Teflon® (PFA) disc insert. For exceptional leak-free performance (use on steam only).

Model 6230
Same as model 6283 except SS trim (nozzle and disc).

Model 6933
Same as model 6010 except certified for ASME code Section IV. Low pressure steam heating boilers set at 15 psig [1.0 barg] only.

Model 6934
Same as model 6021 except certified for ASME code Section IV. Low pressure steam heating boilers set at 15 psig [1.0 barg] only.

Model 6935
Same as model 6030 except certified for ASME code Section IV. Low pressure steam heating boilers set at 15 psig [1.0 barg] only.

Features & Benefits

  • O-ring seats available for exceptional leak-free performance, reduced maintenance cost, multiple cycles with tight shutoff, improved seating integrity.
  • Wide hex on valve nozzle provides wrenching service clearance for easy installation.
  • 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.
  • Grooved piston model disc reduces sliding area and friction.
  • Each Kunkle valve is tested and inspected for pressure setting and leakage.