Direct Acting Differential Area Relief 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 selection of differential area relief valves provide excellent pressure control in applications where a fast acting, low leakage relief valves are needed with operating pressures up to 380 bar (5500 psi) and flows up to 151 lpm (40 gpm) through a wide selectin of cartridge sizes. Unlike the direct acting family of relief valves, Parker's differential area relief valves are designed to have the pressure controlled at port 2 of the cavity. This ensures low leakage across the valve, essential in some holding applications. Designed using industry common cavities, Parker’s line of differential area reliefs can easily be used in various mobile and industrial system applications.

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

Features/Benefits:
• Fast acting differential area reliefs for high flow capacity
• Low leak spherical poppets
• High flow capacity
• Mechanical stops eliminate spring solidification
• All external parts zinc plated

Applications:
• Port relief
• Swing relief
• Motor braking
• Cross port relief applications

View as Grid List

Sort by

Display per page

SKU	Availability	Price	Body Material	Weight	Maximum Operating Pressure	Division	Minimum Operating Temperature	Maximum Kinematic Viscosity	Maximum Operating Temperature	Actuation Type	Function	Operation Type	Adjustment Mechanism	Cavity Size	Maximum Tank Pressure	Port Thread Size	Seal Material	Maximum Flow Rate	Maximum Inlet Pressure Rating	For Fluid Type	Valve Material	Filter Efficiency Rating	Mounting Type	Operating Temperature	Flow Rate	Installation Torque	Maximum Pressure Setting	Standard Setting Pressure	Cracking Pressure	Pressure Control Range	Configuration	Reseat Pressure	Leak Rate	Pressure Control Sensitivity	Minimum Operating Pressure	Adjustment Mechanism	Mounting Type	Cracking Pressure	Seal Material	Flow Rate	Maximum Inlet Pressure Rating	Pressure Control Range	Standard Setting Pressure
RDH103T10	Backordered	POR	N/A	0.23 kg	5500 psi	Hydraulic Systems Division	-37 °C	45-2000 SSU (6 to 420 cSt)	+200 °F	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	350 bar	n/a	D-Ring (Standard)	20 Gal/min	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	75 L/min	69-75 Nm	69 bar	500 psi	N/A psi	100-1000 psi	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	9.8 per turn bar	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	D-Ring (Standard)	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T10N	Backordered	POR	N/A	0.23 kg	5500 psi	Hydraulic Systems Division	-34 °C	45-2000 SSU (6 to 420 cSt)	+121 °C	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	Nitrile	20 Gal/min	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 L/min	51-55 lb-ft	69 bar	500 psi	N/A psi	6.9-69 bar	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	143 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	Nitrile	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T10V	Backordered	POR	N/A	0.23 kg	5500 psi	Hydraulic Systems Division	-26 °C	45-2000 SSU (6 to 420 cSt)	+204 °C	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	Fluorocarbon	20 Gal/min	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	20 Gal/min	51-55 lb-ft	69 bar	500 psi	N/A psi	6.9-69 bar	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	143 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	Fluorocarbon	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T30	13 in stock	POR	N/A	0.5 lb	5500 psi	Hydraulic Systems Division	-35 °F	45-2000 SSU (6 to 420 cSt)	+200 °F	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	350 bar	n/a	D-Ring (Standard)	75 L/min	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	75 L/min	51-55 lb-ft	3000 psi	1500 psi	N/A psi	1000-3000 psi	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	375 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	D-Ring (Standard)	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T30N	Backordered	POR	N/A	0.23 kg	5500 psi	Hydraulic Systems Division	-30 °F	45-2000 SSU (6 to 420 cSt)	+250 °F	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	350 bar	n/a	Nitrile	20 Gal/min	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	20 Gal/min	69-75 Nm	210 bar	103.5 bar	N/A psi	69-210 bar	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	375 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	Nitrile	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T30V	Backordered	POR	N/A	0.5 lb	5500 psi	Hydraulic Systems Division	-15 °F	45-2000 SSU (6 to 420 cSt)	+400 °F	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	350 bar	n/a	Fluorocarbon	75 L/min	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	-26 to +204 °C	20 Gal/min	51-55 lb-ft	210 bar	103.5 bar	N/A psi	1000-3000 psi	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	375 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	Fluorocarbon	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T50	Backordered	POR	N/A	0.23 kg	5500 psi	Hydraulic Systems Division	-35 °F	45-2000 SSU (6 to 420 cSt)	+93 °C	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	D-Ring (Standard)	75 L/min	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	-35 to +200 °F	20 Gal/min	51-55 lb-ft	350 bar	172 bar	N/A psi	138-350 bar	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	.33 @ 75% Crack Pressure cm3/min	589 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	D-Ring (Standard)	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR
RDH103T50V	Backordered	POR	N/A	0.5 lb	5500 psi	Hydraulic Systems Division	-26 °C	45-2000 SSU (6 to 420 cSt)	+204 °C	Pressure Sensing	Direct Acting	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	Fluorocarbon	20 Gal/min	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	-15 to +400 °F	20 Gal/min	51-55 lb-ft	5000 psi	172 bar	N/A psi	138-350 bar	Differential Area Relief, Differential Relief w/Reverse Flow Check	85% of pressure setting	5 @ 75% Crack Pressure drops/min	589 per turn psi	380 bar	Tamper Resistant	Screw in cartridge valve	N/A	Fluorocarbon	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR

Direct Acting Differential Area Relief Valves

Interchange Lookup