Kunkle Bronze Safety Valve Models 189, 189C, 189P, 363, 363C, 363P, 389C, 389P

Certified for air, gas and cryogenic applications, these bronze valves with stainless steel trim are made with a unique three-piece disc assembly which offers superior leak-free performance over pressure/temperature operating range. Used with cryogenic (cold) and liquefied air, liquefied oxygen and liquefied gas services, multi-stage air compressors, multi-stage gas compressors, intercoolers, aftercoolers and receivers, air, gas and liquefied gas lines and systems.

Model Descriptions:

ASME Section VIII, Air/Gas Cryogenic, “UV” National Board Certified Safety Valves

  • Model 189: Bronze housing with stainless steel (SS) trim (nozzle and disc) with Teflon® seat/seal in disc. Plain lift lever.
  • Model 189C: Same as Model 189 except pressure-tight cap for gas service only. Suitable for maximum back pressure of 50 PSIG.
  • Model 189P: Same as model 189 except pressure-tight packed lift lever. Suitable for maximum back pressure of 50 PSIG.
  • Model 363: Bronze housing with SS trim (nozzle and disc) with Teflon® seat/seal in disc. Plain lift lever. 1000 PSIG maximum set pressure.
  • Model 363C: Same as Model 363 except pressure-tight cap for gas service only. Suitable for maximum back pressure of 50 PSIG. 1000 PSIG maximum set pressure.
  • Model 363P: Same as Model 363 except pressure-packed lift lever. Suitable for maximum back pressure of 50 PSIG. 1000 PSIG maximum set pressure.
  • Model 389C: All SS with Teflon® seat/seal in disc. Pressure-tight cap for gas service only. Suitable for maximum back pressure of 50 PSIG.
  • Model 389P: Same as Model 389C except pressure-tight packed lift lever. Suitable for maximum back pressure of 50 PSIG.

Features:

  • Unique three-piece disc assembly (with Teflon® seat/seal) offers superior leak-free performance over pressure/temperature operating range.
  • Warn ring offers precise opening with minimum pre-open or simmer.
  • Pivot between disc and spring corrects for all misalignment and compensates for spring side thrust.
  • All adjustments are factory sealed to prevent tampering and disassembly.
  • Each Kunkle valve is tested and inspected for pressure setting and leakage.

Applications:

  • Cryogenic “cold” and liquefied air, oxygen and gas service.
  • Multi-stage air and gas compressors, intercoolers, aftercoolers and receivers.
  • Thermal expansion relief and/or full-rated capacity discharge.
  • Air, gas and liquefied gas lines and systems.

Pressure and Temperature Limits:

  • Model 189
    • 1000 to 2500 PSIG
    • -320° to 350°F
  • Model 363
    • 50 to 1000 PSIG
    • -320° to 350°F
  • Model 389
    • 50 to 2500 PSIG
    • -320° to 350°F

Please refer to the Kunkle Catalog or Contact Us for additional information.