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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Action	Part No.	Availability	Partner Available	Price	Flow Rate	Seal Material	Body Material	Minimum Operating Temperature	Division	Maximum Kinematic Viscosity	Weight	Maximum Operating Pressure	Function	Actuation Type	Operation Type	Adjustment Mechanism	Cavity Size	Maximum Tank Pressure	Maximum Pressure Setting	Port Thread Size	Cracking Pressure	Maximum Flow Rate	Maximum Inlet Pressure Rating	For Fluid Type	Valve Material	Filter Efficiency Rating	Operating Temperature	Maximum Operating Temperature	Mounting Type	Installation Torque	Standard Setting Pressure	Leak Rate	Reseat Pressure	Configuration	Minimum Operating Pressure	Pressure Control Sensitivity	Pressure Control Range	Seal Material	Adjustment Mechanism	Mounting Type	Cracking Pressure	Flow Rate	Maximum Inlet Pressure Rating	Pressure Control Range	Standard Setting Pressure
	RDH103T50N	Quote Required	Quote Required	TBD	20	Nitrile	n/a	-30	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	0.5	5500	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000	5000	n/a	n/a	20	5500	Mineral-based or synthetic hydraulic fluids	All parts steel. All operating parts hardened steel	ISO 4406 18/16/13, SAE Class 4	-30 to +250	+250	Screw in cartridge valve	51-55	2500	5 @ 75% Crack Pressure	85% of pressure setting	Differential Area Relief, Differential Relief w/Reverse Flow Check	380	589 per turn	2000-5000	Nitrile	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
	RDH103T50V	Quote Required	Quote Required	TBD	20 Gal/min	Fluorocarbon	n/a	-26 °C	Hydraulic Systems Division	45-2000 SSU (6 to 420 cSt)	0.5 lb	5500 psi	Direct Acting	Pressure Sensing	Automatic	Tamper Resistant	C10-2	5000 psi	5000 psi	n/a	N/A psi	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	-15 to +400 °F	+204 °C	Screw in cartridge valve	51-55 lb-ft	172 bar	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	138-350 bar	Fluorocarbon	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