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Parker MHB-030-WBAE-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-WBAE-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
Cavity Size	n/a	Adjustment Mechanism	Tamper Resistant
Maximum Inlet Pressure Rating	3000 psi	Weight	1.13 kg
Maximum Flow Rate	30 Gal/min	Function	Counterbalance Valve
Pilot Pressure Ratio	3:1	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	-34 to +121 °C	Filter Efficiency Rating	ISO 4406 18/16/13, SAE Class 4
Flow Rate	30 Gal/min	Actuation Type	Pilot Operated, Vented
Installation Torque	N/A lb-ft	Mounting Type	Single Inline
Flow Direction	Cylinder port C, Valve port V, Pilot port P	Leak Rate	5 @ 80% of setting drops/min
Port Size	SAE-8	Holding Pressure	105 bar
Pressure Control Range	500-1500 psi	Pressure Control Sensitivity	N/A bar
Seal Material	Nitrile	Adjustment Mechanism	Tamper Resistant
Pilot Pressure Ratio	3:1	Pressure Control Range	500-1500 PSI, 34.5-103.4 BAR
Port Size	SAE-8	Mounting Type	Single Inline
Holding Pressure	1500 PSI, 105 BAR	Maximum Flow Rate	30 GAL/MIN, 112.5 L/MIN

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