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Parker RDH103N30 - 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. RDH103N30

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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	Maximum Pressure Setting	3000
Operation Type	Automatic	Cavity Size	C10-2
Adjustment Mechanism	Non-Adjustable	Maximum Tank Pressure	5000
Pressure Control Sensitivity	n/a	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	1500
Leak Rate	5 @ 75% Crack Pressure	Reseat Pressure	85% of pressure setting
Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check	Minimum Operating Pressure	380
Pressure Control Range	1000-3000	Adjustment Mechanism	Non-Adjustable
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	500-3000 PSI, 34.5-210 BAR
Standard Setting Pressure	1500 PSI, 103.5 BAR

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