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Parker MHB-030-WABC-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-WABC-52E

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Products specifications

Attribute name	Attribute value
Maximum Operating Pressure	3000 psi	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)
Body Material	Aluminum	Minimum Operating Temperature	-34 °C
Cavity Size	n/a	Adjustment Mechanism	Tamper Resistant
Weight	1.13 kg	Maximum Flow Rate	30 Gal/min
Function	Counterbalance Valve	Maximum Inlet Pressure Rating	210 bar
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	Actuation Type	Pilot Operated, Vented
Installation Torque	N/A lb-ft	Flow Direction	Cylinder port C, Valve port V, Pilot port P
Pilot Pressure Ratio	1:1	Leak Rate	5 @ 80% of setting drops/min
Port Size	SAE-8	Mounting Type	Single Gasket
Pressure Control Sensitivity	N/A bar	Flow Rate	112.5 L/min
Holding Pressure	500 psi	Pressure Control Range	250-500 psi
Seal Material	Nitrile	Adjustment Mechanism	Tamper Resistant
Port Size	SAE-8	Holding Pressure	500 PSI, 34.5 BAR
Pilot Pressure Ratio	1:1	Pressure Control Range	250-500 PSI, 17.2-34.5 BAR
Mounting Type	Single Gasket	Maximum Flow Rate	30 GAL/MIN, 112.5 L/MIN

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