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.
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