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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SKU	Availability	Partner Available	Price	Weight	Seal Material	Body Material	Maximum Operating Pressure	Minimum Operating Temperature	Maximum Kinematic Viscosity	Division	Maximum Inlet Pressure Rating	Installation Torque	Maximum Flow Rate	Function	Actuation Type	Cavity Size	Operation Type	Adjustment Mechanism	Port Thread Size	For Fluid Type	Maximum Operating Temperature	Valve Material	Operating Temperature	Filter Efficiency Rating	Mounting Type	Maximum Tank Pressure	Maximum Pressure Setting	Standard Setting Pressure	Cracking Pressure	Pressure Control Range	Reseat Pressure	Flow Rate	Leak Rate	Configuration	Pressure Control Sensitivity	Minimum Operating Pressure	Seal Material	Mounting Type	Adjustment Mechanism	Cracking Pressure	Pressure Control Range	Flow Rate	Maximum Inlet Pressure Rating	Standard Setting Pressure
RD163S10V	Backordered		Contact Us	0.23 kg	Fluorocarbon	n/a	3500 psi	-15 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	3500 psi	40 lb-ft	151 L/min	Direct Acting	Pressure Sensing	C16-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+400 °F	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	210 bar	69 bar	500 psi	N/A psi	13.8-69 bar	80% of pressure setting	151 L/min	10 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	7 per turn bar	240 bar	Fluorocarbon	Screw in cartridge valve	Screw	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RDH083K30V	Backordered		Contact Us	0.19 kg	Fluorocarbon	n/a	5500 psi	-15 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	31 Nm	45 L/min	Direct Acting	Pressure Sensing	C08-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+400 °F	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	3000 psi	1500 psi	N/A psi	1000-3000 psi	75% of pressure setting	12 Gal/min	10 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	27 per turn bar	380 bar	Fluorocarbon	Screw in cartridge valve	Knob	N/A	1000-3000 PSI, 69-210 BAR	12 GAL/MIN, 45 L/MIN	5500 PSI, 380 BAR	1500 PSI, 103.5 BAR
RDH103K10	Backordered	Backordered	$66.50	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	69-75 Nm	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+200 °F	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	1000 psi	34.5 bar	N/A psi	6.9-69 bar	85% of pressure setting	20 Gal/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	9.8 per turn bar	380 bar	D-Ring (Standard)	Screw in cartridge valve	Knob	N/A	100-1000 PSI, 6.9-69 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR
RDH103K10V	Backordered	Backordered	$71.50	0.23 kg	Fluorocarbon	n/a	5500 psi	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	69-75 Nm	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+400 °F	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	1000 psi	500 psi	N/A psi	100-1000 psi	85% of pressure setting	75 L/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	9.8 per turn bar	380 bar	Fluorocarbon	Screw in cartridge valve	Knob	N/A	100-1000 PSI, 6.9-69 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR
RDH103K20	Backordered	Backordered	Contact Us	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	51-55 lb-ft	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+200 °F	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	138 bar	1000 psi	N/A psi	500-2000 psi	85% of pressure setting	75 L/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	17 per turn bar	380 bar	D-Ring (Standard)	Screw in cartridge valve	Knob	N/A	500-2000 PSI, 34.5-138 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1000 PSI, 69 BAR
RDH103K30	Backordered	Backordered	$66.50	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	69-75 Nm	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+200 °F	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	3000 psi	103.5 bar	N/A psi	69-210 bar	85% of pressure setting	75 L/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	25.8 per turn bar	380 bar	D-Ring (Standard)	Screw in cartridge valve	Knob	N/A	500-3000 PSI, 34.5-210 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1500 PSI, 103.5 BAR
RDH103K30V	Backordered	Backordered	$71.50	0.23 kg	Fluorocarbon	n/a	5500 psi	-15 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	69-75 Nm	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+400 °F	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	210 bar	1500 psi	N/A psi	1000-3000 psi	85% of pressure setting	20 Gal/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	375 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Knob	N/A	500-3000 PSI, 34.5-210 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1500 PSI, 103.5 BAR
RDH103K50	Backordered	Backordered	$66.50	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	51-55 lb-ft	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+93 °C	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	5000 psi	172 bar	N/A psi	2000-5000 psi	85% of pressure setting	20 Gal/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	589 per turn psi	380 bar	D-Ring (Standard)	Screw in cartridge valve	Knob	N/A	500-5000 PSI, 34.5-350 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	2500 PSI, 172 BAR
RDH103K50V	Backordered	Backordered	$71.50	0.5 lb	Fluorocarbon	n/a	5500 psi	-15 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	51-55 lb-ft	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Knob	n/a	Mineral-based or synthetic hydraulic fluids	+204 °C	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	350 bar	2500 psi	N/A psi	2000-5000 psi	85% of pressure setting	75 L/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	589 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Knob	N/A	500-5000 PSI, 34.5-350 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	2500 PSI, 172 BAR
RDH103S10	Backordered	Backordered	$53.75	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	69-75 Nm	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+93 °C	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	1000 psi	34.5 bar	N/A psi	100-1000 psi	85% of pressure setting	75 L/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	143 per turn psi	380 bar	D-Ring (Standard)	Screw in cartridge valve	Screw	N/A	100-1000 PSI, 6.9-69 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR
RDH103S10V	Backordered	Backordered	$58.75	0.5 lb	Fluorocarbon	n/a	5500 psi	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	51-55 lb-ft	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+204 °C	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	1000 psi	34.5 bar	N/A psi	100-1000 psi	85% of pressure setting	20 Gal/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	143 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Screw	N/A	100-1000 PSI, 6.9-69 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR
RDH103S20	Backordered	Backordered	Contact Us	0.23 kg	D-Ring (Standard)	n/a	5500 psi	-35 °F	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	69-75 Nm	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+200 °F	All parts steel. All operating parts hardened steel	-37 to +93 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	138 bar	69 bar	N/A psi	34.5-138 bar	85% of pressure setting	20 Gal/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	246 per turn psi	380 bar	D-Ring (Standard)	Screw in cartridge valve	Screw	N/A	500-2000 PSI, 34.5-138 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1000 PSI, 69 BAR
RDH103S30	Backordered	39 in stock	$53.75	0.23 kg	D-Ring (Standard)	n/a	5500 psi	-37 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	51-55 lb-ft	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+93 °C	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	210 bar	1500 psi	N/A psi	1000-3000 psi	85% of pressure setting	20 Gal/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	375 per turn psi	380 bar	D-Ring (Standard)	Screw in cartridge valve	Screw	N/A	500-3000 PSI, 34.5-210 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1500 PSI, 103.5 BAR
RDH103S30V	Backordered	Backordered	$58.75	0.5 lb	Fluorocarbon	n/a	5500 psi	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	51-55 lb-ft	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+204 °C	All parts steel. All operating parts hardened steel	-15 to +400 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	3000 psi	103.5 bar	N/A psi	1000-3000 psi	85% of pressure setting	75 L/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	375 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Screw	N/A	500-3000 PSI, 34.5-210 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	1500 PSI, 103.5 BAR
RDH103S50	9 in stock	296 in stock	$53.75	0.5 lb	D-Ring (Standard)	n/a	5500 psi	-37 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	51-55 lb-ft	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+93 °C	All parts steel. All operating parts hardened steel	-35 to +200 °F	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	5000 psi	2500 psi	N/A psi	138-350 bar	85% of pressure setting	75 L/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	40.6 per turn bar	380 bar	D-Ring (Standard)	Screw in cartridge valve	Screw	N/A	500-5000 PSI, 34.5-350 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	2500 PSI, 172 BAR
RDH103S50V	Backordered	Backordered	$58.75	0.5 lb	Fluorocarbon	n/a	5500 psi	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	380 bar	51-55 lb-ft	75 L/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Screw	n/a	Mineral-based or synthetic hydraulic fluids	+400 °F	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	350 bar	350 bar	172 bar	N/A psi	2000-5000 psi	85% of pressure setting	75 L/min	5 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	589 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Screw	N/A	500-5000 PSI, 34.5-350 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	2500 PSI, 172 BAR
RDH103T10V	Backordered		Contact Us	0.23 kg	Fluorocarbon	n/a	5500 psi	-26 °C	45-2000 SSU (6 to 420 cSt)	Hydraulic Systems Division	5500 psi	51-55 lb-ft	20 Gal/min	Direct Acting	Pressure Sensing	C10-2	Automatic	Tamper Resistant	n/a	Mineral-based or synthetic hydraulic fluids	+204 °C	All parts steel. All operating parts hardened steel	-26 to +204 °C	ISO 4406 18/16/13, SAE Class 4	Screw in cartridge valve	5000 psi	69 bar	500 psi	N/A psi	6.9-69 bar	85% of pressure setting	20 Gal/min	.33 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	143 per turn psi	380 bar	Fluorocarbon	Screw in cartridge valve	Tamper Resistant	N/A	100-1000 PSI, 6.9-69 BAR	20 GAL/MIN, 75 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR