Kunkle Bronze Liquid Relief Valve Models 19, 20, 20M, 20MP, 20P, 200A, 200H

These sturdy bronze relief valves are used for overpressure relief and protection of pumps, tanks, lines and hydraulic systems, pressure regulation and continuous bypass relief. Non-coded liquid relief valves, all models have stainless steel springs for corrosion resistance.

Model Descriptions:

Non-code Bronze Liquid Relief Valves

  • Model 19: All bronze; equipped with handwheel for easy adjustment within spring ranges.
  • Model 19M: Same as model 19 except stainless steel (SS) trim (seat and disc). Available 2 ½” and 3” only. For higher pressure settings or severe applications.
  • Model 20: All bronze, with pressure-tight cap. Suitable for maximum back pressure of 50 PSIGPSIG.
  • Model 20M: Same as model 20 except SS trim. Available in 2 ½” and 3” only (seat and disc). For higher pressure settings or severe applications. Maximum back pressure of 50 PSIG.
  • Model 20P: Same as model 20 except has packed lift lever. Suitable for maximum back pressure of 50 PSIG.
  • Model 20MP: Same as model 20M except has packed lift lever. Maximum back pressure of 50 PSIG.
  • Model 200A: Special non-chattering design. Recommended for light oils and continuous by-pass or pressure regulation. UL842 listed for light oil service. Available in ¾” to 1 ½” sizes.
  • Female NPT connections only.
  • Model 200H: Same as Model 20. UL842 listed for use with fuel oils. Available in ¾” to 2” sizes.

Features:

  • Both inlet and outlet connections are cast integral with body to permit easy inspection and servicing without disconnecting piping.
  • Beveled seats lapped for optimum performance.
  • SS spring for optimum corrosion resistance.
  • Each Kunkle valve is tested and inspected for pressure setting and leakage.

Applications:

  • Non-code liquid relief
  • -Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
  • Pressure regulation.
  • Continuous by-pass relief.

Pressure and Temperature Limits:

  • Models 19, 20
    • 1 to 300PSIG
    • -60° to 406°F
  • Models 19M, 20M
    • 1 to 500 PSIG
    • -60° to 406°F
  • Models 200A, 200H
    • 1 to 200 PSIG
    • -60° to 406°F

Options:

  • Available with optional female NPT inlet or flanged inlet and outlet connections.
  • Model 20D
    • Variation 05: 50 to 150 PSIG spring range
    • Variation 06: 100 to 300 PSIG

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