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RDH083K50 - 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: 71 days
Partner Available:	Backordered

SKU RDH083K50

$73.52/each

Products specifications

Attribute name	Attribute value
UOM	EA	Seal Material	Nitrile
Adjustment Mechanism	Knob	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	Cracking Pressure	N/A psi
Cavity Size	C08-2	Minimum Operating Temperature	-30 °F
Port Thread Size	N/A	Adjustment Mechanism	Knob
Pressure Control Range	138-350 bar	Pressure Control Sensitivity	614 per turn psi
Mounting Type	Screw in cartridge valve	Flow Rate	12 Gal/min
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Maximum Operating Pressure	5500 psi
Configuration	Differential Area Relief, Differential Relief w/Reverse Flow Check	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Actuation Type	Pressure Sensing	Operating Temperature	-34 to +121 °C
Installation Torque	31 Nm	Weight	0.43 lb
Reseat Pressure	75% of pressure setting	Operation Type	Automatic
Body Material	N/A	Division	Hydraulic Systems Division
Standard Setting Pressure	172 bar	Valve Material	All parts steel. All operating parts hardened steel
Maximum Pressure Setting	350 bar	Maximum Flow Rate	12 Gal/min
Leak Rate	.66 @ 75% Crack Pressure cm3/min	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Maximum Operating Temperature	+250 °F	Minimum Operating Pressure	380 bar
Seal Material	Nitrile	Maximum Inlet Pressure Rating	380 bar
Maximum Tank Pressure	350 bar	Function	Direct Acting

Product resources

Literature and Reference Materials