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Parker RAH121T30 - Pilot Operated Relief Valves

Parker’s pilot operated relief valves are designed for continuous duty applications featuring great stability with low pressure drop; working with pressures up to 420 bar (6000 psi) and flows up to 400 lpm (106 gpm).

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Brand Parker

Part No. RAH121T30

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Body Material	n/a
Maximum Operating Pressure	5000 psi	Division	Hydraulic Cartridge Systems Division
Division	Hydraulic Systems Division	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Flow Rate	50 Gal/min	Maximum Flow Rate	50 Gal/min
Minimum Operating Temperature	-34 °C	Configuration	Pressure Relief
Actuation Type	Pressure Sensing	Maximum Pressure Setting	210 bar
Operation Type	Automatic	Adjustment Mechanism	Tamper Resistant
Function	Pilot Operated	Maximum Tank Pressure	5000 psi
Cavity Size	C12-2	Maximum Inlet Pressure Rating	5500 psi
Maximum Operating Temperature	+121 °C	For Fluid Type	Mineral-based or synthetic hydraulic fluids
Valve Material	All parts steel. All operating parts hardened steel	Operating Temperature	-34 to +121 °C
Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4	Mounting Type	Screw in cartridge valve
Installation Torque	92-96 lb-ft	Weight	0.22 kg
Standard Setting Pressure	1500 psi	Pressure Control Range	300-3000 psi
Reseat Pressure	80% of pressure setting	Leak Rate	82 @ 75% Crack Pressure cm3/min
Pressure Control Sensitivity	59.7 per turn bar	Seal Material	Nitrile
Adjustment Mechanism	Tamper Resistant	Maximum Inlet Pressure Rating	5500 PSI, 380 BAR
Pressure Control Range	300-3000 PSI, 20.7-210 BAR	Flow Rate	50 GAL/MIN, 189.5 L/MIN

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