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LIQUID RELIEF VALVES

Liquid relief valves enable the valve to open proportionally to an increase in pressure over the normal operating pressure. Liquid relief valves are made mainly to get rid of large volumes of steam that will nroamlly pop open to top capacity.

When overpressure occurs, liquid relief valves open to where large-volume discharge is not required as the valve rises due to hightened spring resistance. Liquids that are not volatile normally are injected to separating oil - water and recovery systems, and lower pressure units receive volatile liquids.

Kunkle Series 20: Models 20 and 200H Non-code Bronze liquid relief valve having the following features and benefits:

Inlet and outlet connections integrally cast into body to permit easy inspection and servicing
without disconnecting piping.

* Lapped beveled seats for optimum performance.
* Stainless Steel Spring for optimum corrosion resistance.

Applications:

* Non-Code liquid relief.
* Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
* Pressure regulation.
* Continuous bypass relief.
Kunkle Series 71S/171/171S
Models 71S, 171, 171S Non Code liquid relief valve possessing the following features and benefits:

* Suitable for back pressure to 50 psig.
* Seats lapped for optimum performance.
* Ball bearing pivot between disc and spring corrects misalignment and compensates for spring side thrust.


Applications:

* Overpressure relief and protection of pumps, tanks, lines and hydraulic
systems. Acid, caustic, ammonia and other corrosive liquids requiring
iron, steel or Stainless Steel materials.
* Pressure regulation.
* By-pass relief.
* All 316 Stainless Steel Model 171S suitable for sanitary/edible applications.

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