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

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Part No.	Availability	Partner Available	Price	UOM	Seal Material	Body Material	Maximum Operating Pressure	Division	Maximum Kinematic Viscosity	Minimum Operating Temperature	Weight	Function	Actuation Type	Operation Type	Adjustment Mechanism	Cavity Size	Maximum Tank Pressure	Port Thread Size	Maximum Flow Rate	Maximum Inlet Pressure Rating	Maximum Operating Temperature	For Fluid Type	Valve Material	Operating Temperature	Filter Efficiency Rating	Mounting Type	Flow Rate	Installation Torque	Maximum Pressure Setting	Standard Setting Pressure	Cracking Pressure	Pressure Control Range	Leak Rate	Reseat Pressure	Configuration	Minimum Operating Pressure	Pressure Control Sensitivity	Seal Material	Adjustment Mechanism	Mounting Type	Cracking Pressure	Flow Rate	Maximum Inlet Pressure Rating	Pressure Control Range	Standard Setting Pressure
RDH103S10V	Quote Required	Quote Required	$45.38	EA	Fluorocarbon	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-26 °C	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000 psi	n/a	20 Gal/min	380 bar	+204 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	1000 psi	34.5 bar	N/A psi	100-1000 psi	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	143 per turn psi	Fluorocarbon	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103S20	Quote Required	Quote Required	$0.01	EA	D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-35 °F	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	350 bar	n/a	20 Gal/min	380 bar	+200 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	69-75 Nm	138 bar	69 bar	N/A psi	34.5-138 bar	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	246 per turn psi	D-Ring (Standard)	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103S20N	Quote Required	Quote Required	TBD		Nitrile	n/a	5500	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-30	0.5	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000	n/a	20	5500	+250	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-30 to +250	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20	51-55	2000	1000	n/a	500-2000	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	246 per turn	Nitrile	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103S20V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	5500	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-15	0.5	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000	n/a	20	5500	+400	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-15 to +400	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20	51-55	2000	1000	n/a	500-2000	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	246 per turn	Fluorocarbon	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103S30	Quote Required	27 In Stock	$40.31	EA	D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-37 °C	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	350 bar	n/a	20 Gal/min	380 bar	+93 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	210 bar	1500 psi	N/A psi	1000-3000 psi	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	D-Ring (Standard)	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103S30N	Quote Required	Quote Required	TBD		Nitrile	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-34 °C	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000 psi	n/a	20 Gal/min	380 bar	+121 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-30 to +250 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	3000 psi	103.5 bar	N/A psi	69-210 bar	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	Nitrile	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103S30V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-26 °C	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	350 bar	n/a	75 L/min	5500 psi	+204 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	3000 psi	103.5 bar	N/A psi	1000-3000 psi	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	Fluorocarbon	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103S50	15 In Stock	172 In Stock	$40.31	EA	D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-37 °C	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000 psi	n/a	75 L/min	5500 psi	+93 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	5000 psi	2500 psi	N/A psi	138-350 bar	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	40.6 per turn bar	D-Ring (Standard)	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR
RDH103S50N	Quote Required	Quote Required	$45.38	EA	Nitrile	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-34 °C	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	5000 psi	n/a	20 Gal/min	380 bar	+121 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-34 to +121 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	5000 psi	172 bar	N/A psi	2000-5000 psi	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	40.6 per turn bar	Nitrile	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR
RDH103S50V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-26 °C	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Screw	C10-2	350 bar	n/a	75 L/min	380 bar	+400 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	350 bar	172 bar	N/A psi	2000-5000 psi	5 @ 75% Crack Pressure drops/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	589 per turn psi	Fluorocarbon	Screw	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR
RDH103T10	Quote Required	Quote Required	$50.44	EA	D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-37 °C	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	350 bar	n/a	20 Gal/min	380 bar	+200 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	69-75 Nm	69 bar	500 psi	N/A psi	100-1000 psi	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	9.8 per turn bar	D-Ring (Standard)	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T10N	Quote Required	Quote Required	TBD		Nitrile	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-34 °C	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	20 Gal/min	5500 psi	+121 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-30 to +250 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	69 bar	500 psi	N/A psi	6.9-69 bar	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	143 per turn psi	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T10V	Quote Required	Quote Required	$54.56	EA	Fluorocarbon	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-26 °C	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	20 Gal/min	5500 psi	+204 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	69 bar	500 psi	N/A psi	6.9-69 bar	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	143 per turn psi	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	100-1000 PSI, 6.9-69 BAR	500 PSI, 34.5 BAR
RDH103T20	Quote Required	Quote Required	TBD		D-Ring (Standard)	n/a	5500	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-35	0.5	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000	n/a	20	5500	+200	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-35 to +200	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20	51-55	2000	1000	n/a	500-2000	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	246 per turn	D-Ring (Standard)	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103T20N	Quote Required	Quote Required	TBD		Nitrile	n/a	5500	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-30	0.5	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000	n/a	20	5500	+250	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-30 to +250	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20	51-55	2000	1000	n/a	500-2000	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	246 per turn	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103T20V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	5500	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-15	0.5	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000	n/a	20	5500	+400	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-15 to +400	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20	51-55	2000	1000	n/a	500-2000	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	246 per turn	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-2000 PSI, 34.5-138 BAR	1000 PSI, 69 BAR
RDH103T30	Quote Required	Quote Required	TBD		D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-35 °F	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	350 bar	n/a	75 L/min	5500 psi	+200 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	75 L/min	51-55 lb-ft	3000 psi	1500 psi	N/A psi	1000-3000 psi	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	D-Ring (Standard)	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T30N	Quote Required	Quote Required	TBD		Nitrile	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-30 °F	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	350 bar	n/a	20 Gal/min	5500 psi	+250 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-30 to +250 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	69-75 Nm	210 bar	103.5 bar	N/A psi	69-210 bar	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T30V	Quote Required	Quote Required	$54.56	EA	Fluorocarbon	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-15 °F	0.5 lb	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	350 bar	n/a	75 L/min	380 bar	+400 °F	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	210 bar	103.5 bar	N/A psi	1000-3000 psi	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	375 per turn psi	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-3000 PSI, 34.5-210 BAR	1500 PSI, 103.5 BAR
RDH103T50	Quote Required	1 Limited Stock	$50.44	EA	D-Ring (Standard)	n/a	5500 psi	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	-35 °F	0.23 kg	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000 psi	n/a	75 L/min	5500 psi	+93 °C	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	20 Gal/min	51-55 lb-ft	350 bar	172 bar	N/A psi	138-350 bar	.33 @ 75% Crack Pressure cm3/min	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380 bar	589 per turn psi	D-Ring (Standard)	Tamper Resistant	Screw in cartridge valve	N/A	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500-5000 PSI, 34.5-350 BAR	2500 PSI, 172 BAR