PR50-36 Pressure Reducing/Relieving, Pilot-Operated (PR50-36)
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic pressure reducing/relieving valve with internal pilot and internal spring chamber drain, designed to act as a pressure-regulating device for secondary circuits.
Product Operation
In its steady state, the PR50-36 allows flow to pass bidirectionally from ➁ to ➀, with the spring chamber constantly drained at ➂On attainment of a pre-determined pressure at ➀, the cartridge shifts to restrict input flow at ➁, thereby regulating pressure at ➀. In this mode, the valve will also relieve ➀ to ➂Deadband (from reducing to relieving) pressure rise over reduced pressure setting:
Non-flow condition: approximately 0.55 bar (8 psi); with flow: approximately 2.1 bar
(30 psi).
Product Features
• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 345 bar (5000 psi).
• Hardened spool and cage for long life.
• Industry common cavity.
Product Ratings
Operating Pressure: 345 bar (5000 psi)
Flow: See Performance Chart
Pilot Orifi ce: Pilot-operated through 0.51 mm (0.020 inch) hole
Standard Spring Ranges (Reducing Function): 27.6 to 103.4 bar (400 to 1500 psi); 103.4 to 206.9 bar (1500 to 3000 psi); 206.9 to 344.8 bar (3000 to 5000 psi)
Temperature: -40 to 120°C with standard Buna seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC10-3; See page 9.110.1
Cavity Tool: CT10-3XX; See page 8.600.1
Seal Kit: SK10-3P-BM; See page 8.650.1207/3000172/2500138/2000103/150069/10003810195003810FLOW RATE lpm/gpmPRESSURE RISE bar/psiFlow Characteristic32 cSt/150 ssu oil at 40°C195RelievingReducing35/50056155615240/3500Patent Pending
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