Pilot Operated Pressure Reducing Relieving Valves

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

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.

View as Grid List

Sort by

Display per page

SKU	Availability	Partner Available	Price	Maximum Operating Pressure	Body Material	Division	Minimum Operating Temperature	Maximum Kinematic Viscosity	Division	Maximum Operating Temperature	Weight	Function	Actuation Type	Operation Type	Adjustment Mechanism	Maximum Tank Pressure	Port Thread Size	Seal Material	Cavity Size	Configuration	Maximum Inlet Pressure Rating	For Fluid Type	Valve Material	Filter Efficiency Rating	Mounting Type	Operating Temperature	Installation Torque	Flow Rate	Maximum Flow Rate	Standard Setting Pressure	Leak Rate	Pressure Control Range	Maximum Drain Flow Rate	Maximum Pressure Setting	Pressure Control Sensitivity	Cracking Pressure	Mounting Type	Adjustment Mechanism	Cracking Pressure	Seal Material	Flow Rate	Pressure Control Range
PRH101S20	Backordered	Backordered	Contact Us	350 bar	n/a	Hydraulic Cartridge Systems Division	-37 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+200 °F	0.5 lb	Pilot Operated	Pressure Sensing	Automatic	Screw	350 bar	n/a	D-Ring (Standard)	C10-3	Pressure Reducing/Relieving	380 bar	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-37 to +93 °C	51-55 lb-ft	56.3 L/min	56.3 L/min	69 bar	N/A cc/min	27-138 bar	0.25 Gal/min	2000 psi	570 per turn psi	N/A psi	Screw in cartridge valve	Screw	N/A	D-Ring (Standard)	15 GAL/MIN, 56.3 L/MIN	400-2000 PSI, 27-138 BAR
PRH101S30	19 in stock	112 in stock	$85.50	5000 psi	n/a	Hydraulic Cartridge Systems Division	-37 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+200 °F	0.5 lb	Pilot Operated	Pressure Sensing	Automatic	Screw	5000 psi	n/a	D-Ring (Standard)	C10-3	Pressure Reducing/Relieving	5500 psi	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-37 to +93 °C	69-75 Nm	56.3 L/min	56.3 L/min	1500 psi	N/A cc/min	600-3000 psi	0.25 Gal/min	3000 psi	859 per turn psi	N/A psi	Screw in cartridge valve	Screw	N/A	D-Ring (Standard)	15 GAL/MIN, 56.3 L/MIN	600-3000 PSI, 41.4-210 BAR
PRH101S30V	Backordered	Backordered	$92.00	350 bar	n/a	Hydraulic Cartridge Systems Division	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+204 °C	0.23 kg	Pilot Operated	Pressure Sensing	Automatic	Screw	350 bar	n/a	Fluorocarbon	C10-3	Pressure Reducing/Relieving	5500 psi	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-26 to +204 °C	51-55 lb-ft	56.3 L/min	56.3 L/min	1500 psi	N/A cc/min	600-3000 psi	0.25 Gal/min	210 bar	859 per turn psi	N/A psi	Screw in cartridge valve	Screw	N/A	Fluorocarbon	15 GAL/MIN, 56.3 L/MIN	600-3000 PSI, 41.4-210 BAR
PRH101S50	2 in stock	28 in stock	$85.50	350 bar	n/a	Hydraulic Cartridge Systems Division	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+200 °F	0.5 lb	Pilot Operated	Pressure Sensing	Automatic	Screw	5000 psi	n/a	D-Ring (Standard)	C10-3	Pressure Reducing/Relieving	380 bar	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-37 to +93 °C	69-75 Nm	56.3 L/min	15 Gal/min	172 bar	N/A cc/min	1200-5000 psi	0.94 L/min	350 bar	1910 per turn psi	N/A psi	Screw in cartridge valve	Screw	N/A	D-Ring (Standard)	15 GAL/MIN, 56.3 L/MIN	1200-5000 PSI, 82.8-350 BAR
PRH101S50V	Backordered	Backordered	$92.00	5000 psi	n/a	Hydraulic Cartridge Systems Division	-15 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+204 °C	0.23 kg	Pilot Operated	Pressure Sensing	Automatic	Screw	350 bar	n/a	Fluorocarbon	C10-3	Pressure Reducing/Relieving	5500 psi	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-26 to +204 °C	69-75 Nm	15 Gal/min	56.3 L/min	172 bar	N/A cc/min	1200-5000 psi	0.94 L/min	350 bar	131.7 per turn bar	N/A psi	Screw in cartridge valve	Screw	N/A	Fluorocarbon	15 GAL/MIN, 56.3 L/MIN	1200-5000 PSI, 82.8-350 BAR
PRH121K10V	Backordered		Contact Us	5000 psi	n/a	Hydraulic Cartridge Systems Division	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+204 °C	0.27 kg	Pilot Operated	Pressure Sensing	Automatic	Knob	350 bar	n/a	Fluorocarbon	C12-3	Pressure Reducing/Relieving	5500 psi	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-26 to +204 °C	75 Nm	113.7 L/min	30 Gal/min	34.5 bar	N/A cc/min	100-1000 psi	0.25 Gal/min	1000 psi	23 per turn bar	N/A psi	Screw in cartridge valve	Knob	N/A	Fluorocarbon	30 GAL/MIN, 113.7 L/MIN	100-1000 PSI, 6.9-69 BAR
PRH121T30	Backordered		Contact Us	350 bar	n/a	Hydraulic Cartridge Systems Division	-34 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+250 °F	0.27 kg	Pilot Operated	Pressure Sensing	Automatic	Tamper Resistant	5000 psi	n/a	Nitrile	C12-3	Pressure Reducing/Relieving	5500 psi	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-30 to +250 °F	75 Nm	30 Gal/min	30 Gal/min	1500 psi	N/A cc/min	20.7-210 bar	0.25 Gal/min	210 bar	60 per turn bar	N/A psi	Screw in cartridge valve	Tamper Resistant	N/A	Nitrile	30 GAL/MIN, 113.7 L/MIN	300-3000 PSI, 20.7-210 BAR
PRH121T50	Backordered		Contact Us	5000 psi	n/a	Hydraulic Valve Systems Division	-30 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	+250 °F	0.6 lb	Pilot Operated	Pressure Sensing	Automatic	Tamper Resistant	5000 psi	n/a	Nitrile	C12-3	Pressure Reducing/Relieving	380 bar	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	-30 to +250 °F	56 lb-ft	30 Gal/min	30 Gal/min	2500 psi	N/A cc/min	500-5000 psi	0.94 L/min	5000 psi	1711 per turn psi	N/A psi	Screw in cartridge valve	Tamper Resistant	N/A	Nitrile	30 GAL/MIN, 113.7 L/MIN	500-5000 PSI, 34.5-350 BAR