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Direct Acting Differential Area Relief Valves - RDH103S50

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:	9 in stock
Partner Available:	296 in stock

SKU: RDH103S50

$53.75

Products specifications

Attribute name	Attribute value
Body Material	n/a	Maximum Operating Pressure	5500 psi
Minimum Operating Temperature	-37 °C	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Division	Hydraulic Systems Division	Weight	0.5 lb
Function	Direct Acting	Actuation Type	Pressure Sensing
Maximum Pressure Setting	5000 psi	Cavity Size	C10-2
Operation Type	Automatic	Adjustment Mechanism	Screw
Maximum Tank Pressure	5000 psi	Port Thread Size	n/a
Seal Material	D-Ring (Standard)	Maximum Inlet Pressure Rating	5500 psi
Maximum Flow Rate	75 L/min	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 °F
Maximum Operating Temperature	+93 °C	Flow Rate	75 L/min
Installation Torque	51-55 lb-ft	Standard Setting Pressure	2500 psi
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	138-350 bar	Pressure Control Sensitivity	40.6 per turn bar
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	500-5000 PSI, 34.5-350 BAR	Standard Setting Pressure	2500 PSI, 172 BAR

Product resources

Literature and Reference Materials