REDUCING VALVE

REDUCING VALVE

RELIEF VALVE

RELIEF VALVE

REDUCING RELIEVING VALVE

REGIONAL - Parker’s pilot operated acting reducing & relieving valves are used in applications where specific functions require reduced and regulated pressure. Capable of flows up to 150 lpm (40 gpm) and pressures up to 380 bar (5500 psi).
Availability: In stock
SKU
PRH121S30
Lead Time
40
Parker's family of pilot operated acting reducing & relieving valves provide superior pressure control in applications where specific regulated and relief pressures are needed for precise operation on functions that require regulated pressures up to 380 bar (5500 psi) and flows up to 150 lpm (40 gpm). Parker's pilot operated acting reducing & relieving valves are designed with several pressure ranges in order to give a higher degree of control with a variety of adjustment style options available. The additional valve stability due to the pilot operation make these valves ideal for sensitive functions such as up or downforce, clamping, or braking applications on various types of machinery within the mobile and industrial markets.

Markets:
• Agriculture
• Construction Equipment
• Industrial
• Miscellaneous Manufacturing
• Miscellaneous Mobile

Features/Benefits:
• Multiple pressure ranges available for more accurate pressure control
• Compact size for reduced space requirements
• Adjustable and tamperproof versions available
• High pressure capacity
• All external parts zinc plated

Applications:
• Brakes
• Clamps
• Suspension systems
• Up/down-force systems

Additional Technical Insight:
Typical applications are in mobile & industrial equipment, where a branch of the system is intended to operate at a lower setting than high system pressure.  Hydraulic functions such as brake circuits, clamping or clutch circuits, suspension systems, street sweepers, or seeding and planting rows in agricultural equipment are common applications for these products.
More Information
Maximum Operating Pressure 350 bar, 5000 psi
Division Hydraulic Systems Division, Hydraulic Valve Systems Division
Maximum Operating Temperature 250 °F, +93 °C
Minimum Operating Temperature -30 °F, -34 °C
Weight Parker 0.6 lb, 0.27 kg
Body Material N/A
Seal Material Nitrile
Flow Rate 30 gal/min, 113.7 L/min
For Fluid Type Mineral-based or synthetic hydraulic fluids
Configuration Pressure Reducing/Relieving
Mounting Type Screw in cartridge valve
Pressure Control Range 20.7-210 bar, 300-3000 psi
Maximum Inlet Pressure Rating 380 bar, 5500 psi
Maximum Tank Pressure 350 bar, 5000 psi
Maximum Flow Rate 30 gal/min, 113.7 L/min
Actuation Type Pressure Sensing
Installation Torque 75 Nm, 56 lb-ft
Pressure Control Sensitivity 60 per turn bar, 870 per turn psi
Valve Material All parts steel. All operating parts hardened steel.
Standard Setting Pressure 1500 psi, 103.5 bar
Maximum Pressure Setting 3000 psi, 210 bar
Filter Efficiency Rating ISO 4406 18/16/13, SAE Class 4
Maximum Drain Flow Rate 0.94 L/min, 0.25 gal/min
Maximum Kinematic Viscosity 45-2000 SSU (6 to 420 cSt)
Adjustment Mechanism Screw
Cavity Size C12-3
Operation Type Automatic
Function Pilot Operated
Operating Temperature -30 to +250 °F, -34 to +121 °C
Port Thread Size N/A
Cracking Pressure N/A psi, N/A
Leak Rate N/A cc/min
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