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Parker MHB-030-WJBH-52E - Standard Pilot Vented Load Control Valves

Parker’s vented load control valves are designed to operate independent of downstream pressure to prevent runaway loads under all dynamic conditions, handling pressures up to 350 bar (5000 psi) and flows up to 113 lpm (30 gpm).

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Brand Parker

Part No. MHB-030-WJBH-52E

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Products specifications

Attribute name	Attribute value
Seal Material	Nitrile	Division	Hydraulic Cartridge Systems Division
Division	Hydraulic Systems Division	Pilot Location	External
Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)	Minimum Operating Temperature	-30 °F
Body Material	Aluminum	Maximum Operating Pressure	210 bar
Weight	2.5 lb	Cavity Size	n/a
Adjustment Mechanism	Tamper Resistant	Maximum Flow Rate	30 Gal/min
Function	Counterbalance Valve	Holding Pressure	3000 psi
Maximum Inlet Pressure Rating	210 bar	Maximum Operating Temperature	+250 °F
For Fluid Type	Mineral-based or synthetic hydraulic fluids	Valve Material	All parts steel. All operating parts hardened steel
Operating Temperature	-30 to +250 °F	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Actuation Type	Pilot Operated, Vented	Installation Torque	N/A lb-ft
Flow Direction	Cylinder port C, Valve port V, Pilot port P	Leak Rate	5 @ 80% of setting drops/min
Port Size	SAE-8	Mounting Type	Single Gasket
Pilot Pressure Ratio	10:1	Pressure Control Range	105-210 bar
Pressure Control Sensitivity	N/A bar	Flow Rate	112.5 L/min
Seal Material	Nitrile	Adjustment Mechanism	Tamper Resistant
Holding Pressure	3000 PSI, 210 BAR	Port Size	SAE-8
Mounting Type	Single Gasket	Pilot Pressure Ratio	10:1
Maximum Flow Rate	30 GAL/MIN, 112.5 L/MIN	Pressure Control Range	105-210 B

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