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Parker RDH103S20 - 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.

AFP Availability:	Quote Required
Partner Available:	Quote Required

Brand Parker

Part No. RDH103S20

$58.00/each

Products specifications

Attribute name	Attribute value
UOM	EA	Minimum Operating Temperature	-35 °F
Installation Torque	69-75 Nm	Operating Temperature	-37 to +93 °C
Minimum Operating Pressure	380 bar	Division	Hydraulic Systems Division
Flow Rate	20 Gal/min	Reseat Pressure	85% of pressure setting
Port Thread Size	N/A	Seal Material	D-Ring (Standard)
Actuation Type	Pressure Sensing	Weight	0.23 kg
Maximum Inlet Pressure Rating	380 bar	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Maximum Operating Pressure	5500 psi	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Cracking Pressure	N/A psi	Adjustment Mechanism	Screw
Valve Material	All parts steel. All operating parts hardened steel	Maximum Pressure Setting	138 bar
Pressure Control Sensitivity	246 per turn psi	Function	Direct Acting
Maximum Tank Pressure	350 bar	Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Pressure Control Range	34.5-138 bar
Cavity Size	C10-2	Maximum Operating Temperature	+200 °F
Standard Setting Pressure	69 bar	Mounting Type	Screw in cartridge valve
Maximum Flow Rate	20 Gal/min	Leak Rate	5 @ 75% Crack Pressure drops/min
Operation Type	Automatic	Body Material	N/A
Adjustment Mechanism	Screw	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

Product resources

Literature and Reference Materials