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

 

Product Summary

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.