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Parker RDH103T20 - Direct Acting Differential Area Relief Valves

Parker’s direct acting differential area relief valves are for fast response intermittent applications and work up to 380 bar (5500 psi) and 151 lpm (40 gpm). These valves have lower leakage rates and pressure rise than standard direct acting reliefs.

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Brand Parker

Part No. RDH103T20

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Products specifications

Attribute name	Attribute value
Flow Rate	20	Minimum Operating Temperature	-35
Body Material	n/a	Division	Hydraulic Systems Division
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Weight	0.5
Maximum Operating Pressure	5500	Function	Direct Acting
Actuation Type	Pressure Sensing	Operation Type	Automatic
Adjustment Mechanism	Tamper Resistant	Cavity Size	C10-2
Maximum Tank Pressure	5000	Port Thread Size	n/a
Cracking Pressure	n/a	Seal Material	D-Ring (Standard)
Maximum Flow Rate	20	Maximum Inlet Pressure Rating	5500
Maximum Operating Temperature	+200	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Mounting Type	Screw in cartridge valve	Operating Temperature	-35 to +200
Installation Torque	51-55	Standard Setting Pressure	1000
Maximum Pressure Setting	2000	Leak Rate	5 @ 75% Crack Pressure
Reseat Pressure	85% of pressure setting	Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check
Pressure Control Range	500-2000	Minimum Operating Pressure	380
Pressure Control Sensitivity	246 per turn	Adjustment Mechanism	Tamper Resistant
Mounting Type	Screw in cartridge valve	Cracking Pressure	N/A
Seal Material	D-Ring (Standard)	Flow Rate	20 GAL/MIN, 75 L/MIN
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Pressure Control Range	500-2000 PSI, 34.5-138 BAR
Standard Setting Pressure	1000 PSI, 69 BAR

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