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Direct Acting Differential Area Relief Valves - RDH103S20

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.

Availability:	Backordered
Partner Available:	Backordered

SKU: RDH103S20

Products specifications

Attribute name	Attribute value
Weight	0.23 kg	Body Material	n/a
Maximum Operating Pressure	5500 psi	Minimum Operating Temperature	-35 °F
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Division	Hydraulic Systems Division
Maximum Operating Temperature	+200 °F	Function	Direct Acting
Actuation Type	Pressure Sensing	Cavity Size	C10-2
Operation Type	Automatic	Adjustment Mechanism	Screw
Maximum Tank Pressure	350 bar	Port Thread Size	n/a
Seal Material	D-Ring (Standard)	Maximum Flow Rate	20 Gal/min
Maximum Inlet Pressure Rating	380 bar	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	-37 to +93 °C
Flow Rate	20 Gal/min	Installation Torque	69-75 Nm
Standard Setting Pressure	69 bar	Maximum Pressure Setting	138 bar
Cracking Pressure	N/A psi	Leak Rate	5 @ 75% Crack Pressure drops/min
Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check	Reseat Pressure	85% of pressure setting
Pressure Control Range	34.5-138 bar	Pressure Control Sensitivity	246 per turn psi
Minimum Operating Pressure	380 bar
Mounting Type	Screw in cartridge valve	Adjustment Mechanism	Screw
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