*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

RDH083S50 - 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.

Manufacturer: Parker

Availability:	Backordered Estimated Lead Time: 36 days
Partner Available:	16 in stock

SKU RDH083S50

$77.19/each

Bypass upcharge for backordered quantity

Products specifications

Attribute name	Attribute value
UOM	EA	Seal Material	Nitrile
Adjustment Mechanism	Screw	Mounting Type	Screw in cartridge valve
Cracking Pressure	N/A	Flow Rate	12 GAL/MIN, 45 L/MIN
Maximum Inlet Pressure Rating	5500 PSI, 380 BAR	Standard Setting Pressure	2500 PSI, 172 BAR
Pressure Control Range	2000-5000 PSI, 138-350 BAR	Operation Type	Automatic
Reseat Pressure	75% of pressure setting	Body Material	N/A
Division	Hydraulic Systems Division	Installation Torque	31 Nm
Standard Setting Pressure	2500 psi	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Seal Material	Nitrile	Maximum Pressure Setting	350 bar
Leak Rate	.66 @ 75% Crack Pressure cm3/min	Maximum Flow Rate	12 Gal/min
Minimum Operating Pressure	380 bar	Maximum Operating Temperature	+121 °C
Valve Material	All parts steel. All operating parts hardened steel	Maximum Tank Pressure	350 bar
Maximum Inlet Pressure Rating	380 bar	Function	Direct Acting
Cracking Pressure	N/A psi	Minimum Operating Temperature	-34 °C
Mounting Type	Screw in cartridge valve	Port Thread Size	N/A
Adjustment Mechanism	Screw	Cavity Size	C08-2
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Pressure Control Sensitivity	42 per turn bar
Pressure Control Range	2000-5000 psi	Flow Rate	45 L/min
Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Weight	0.19 kg	Maximum Operating Pressure	5500 psi
Actuation Type	Pressure Sensing	Operating Temperature	-30 to +250 °F

Product resources

Literature and Reference Materials