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

Part No.	Availability	Partner Available	Price	UOM	Seal Material	Body Material	Division	Maximum Operating Pressure	Maximum Kinematic Viscosity	Maximum Inlet Pressure Rating	Minimum Operating Temperature	Installation Torque	Weight	Maximum Flow Rate	Function	Actuation Type	Operation Type	Adjustment Mechanism	Port Thread Size	Cavity Size	Maximum Operating Temperature	For Fluid Type	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	Adjustment Mechanism	Mounting Type	Cracking Pressure	Pressure Control Range	Flow Rate	Maximum Inlet Pressure Rating	Standard Setting Pressure
RD163K10	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	240 bar	-30 °F	54 Nm	0.23 kg	40 Gal/min	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	210 bar	1000 psi	500 psi	N/A psi	13.8-69 bar	80% of pressure setting	151 L/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	7 per turn bar	240 bar	Nitrile	Knob	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163K10V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	3000	1000	500	n/a	200-1000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	104 per turn	240	Fluorocarbon	Knob	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163K20	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-30	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Nitrile	Knob	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163K20V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Fluorocarbon	Knob	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163K30	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	240 bar	-30 °F	54 Nm	0.5 lb	40 Gal/min	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	3000 psi	3000 psi	103.5 bar	N/A psi	41.4-210 bar	80% of pressure setting	40 Gal/min	10 @ 75% Crack Pressure drops/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	204 per turn psi	240 bar	Nitrile	Knob	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RD163K30V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Knob	n/a	C16-2	+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	3000	3000	1500	n/a	600-3000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	204 per turn	240	Fluorocarbon	Knob	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RD163S10	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	3500 psi	-30 °F	40 lb-ft	0.5 lb	151 L/min	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+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	210 bar	69 bar	34.5 bar	N/A psi	13.8-69 bar	80% of pressure setting	40 Gal/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	104 per turn psi	240 bar	Nitrile	Screw	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163S10V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	3500 psi	-15 °F	40 lb-ft	0.23 kg	151 L/min	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+400 °F	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	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	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163S20	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-30	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Nitrile	Screw	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163S20V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Fluorocarbon	Screw	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163S30	Quote Required	Quote Required	$160.88	EA	Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	240 bar	-30 °F	54 Nm	0.5 lb	40 Gal/min	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+250 °F	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	3000 psi	3000 psi	103.5 bar	N/A psi	600-3000 psi	80% of pressure setting	40 Gal/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	14 per turn bar	240 bar	Nitrile	Screw	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RD163S30V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	240 bar	-26 °C	40 lb-ft	0.23 kg	40 Gal/min	Direct Acting	Pressure Sensing	Automatic	Screw	n/a	C16-2	+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	3000 psi	3000 psi	1500 psi	N/A psi	41.4-210 bar	80% of pressure setting	40 Gal/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	204 per turn psi	240 bar	Fluorocarbon	Screw	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RD163T10	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	240 bar	-30 °F	54 Nm	0.5 lb	151 L/min	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	210 bar	1000 psi	34.5 bar	N/A psi	13.8-69 bar	80% of pressure setting	151 L/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	104 per turn psi	240 bar	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163T10V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	3000	1000	500	n/a	200-1000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	104 per turn	240	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	200-1000 PSI, 13.8-69 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	500 PSI, 34.5 BAR
RD163T20	Quote Required	Quote Required	TBD		Nitrile	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-30	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163T20V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	3000	2000	1000	n/a	400-2000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	99 per turn	240	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	400-2000 PSI, 27.6-138 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1000 PSI, 69 BAR
RD163T30	Quote Required	Quote Required	$176.63	EA	Nitrile	n/a	Hydraulic Systems Division	3500 psi	45-2000 SSU (6 to 420 cSt)	3500 psi	-34 °C	54 Nm	0.23 kg	151 L/min	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	3000 psi	210 bar	103.5 bar	N/A psi	41.4-210 bar	80% of pressure setting	151 L/min	.66 @ 75% Crack Pressure cm3/min	Differential Area Relief, Differential Relief w/Reverse Flow Check	14 per turn bar	240 bar	Nitrile	Tamper Resistant	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RD163T30V	Quote Required	Quote Required	TBD		Fluorocarbon	n/a	Hydraulic Systems Division	3500	45-2000 SSU (6 to 420 cSt)	3500	-15	40	0.5	40	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	n/a	C16-2	+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	3000	3000	1500	n/a	600-3000	80% of pressure setting	40	10 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	204 per turn	240	Fluorocarbon	Tamper Resistant	Screw in cartridge valve	N/A	600-3000 PSI, 41.4-210 BAR	40 GAL/MIN, 151 L/MIN	3500 PSI, 240 BAR	1500 PSI, 103.5 BAR
RDCH103F10-8T	Quote Required	Quote Required	TBD		D-Ring (Standard)	Steel	Hydraulic Systems Division	5500	45-2000 SSU (6 to 420 cSt)	5500	-35	N/A	2.7	16	Direct Acting	Pressure Sensing	Automatic	Fixed	SAE-8	n/a	+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	Line Mounted	5000	1000	500	5	100-1000	85% of pressure setting	16	5 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	n/a	380	D-Ring (Standard)	Fixed	Line Mounted	5 PSI, 0.3 BAR	100-1000 PSI, 6.9-69 BAR	16 GAL/MIN, 60 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR
RDCH103F10N-8T	Quote Required	Quote Required	TBD		Nitrile	Steel	Hydraulic Systems Division	5500	45-2000 SSU (6 to 420 cSt)	5500	-30	N/A	2.7	16	Direct Acting	Pressure Sensing	Automatic	Fixed	SAE-8	n/a	+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	Line Mounted	5000	1000	500	5	100-1000	85% of pressure setting	16	5 @ 75% Crack Pressure	Differential Area Relief, Differential Relief w/Reverse Flow Check	n/a	380	Nitrile	Fixed	Line Mounted	5 PSI, 0.3 BAR	100-1000 PSI, 6.9-69 BAR	16 GAL/MIN, 60 L/MIN	5500 PSI, 380 BAR	500 PSI, 34.5 BAR