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Parker D4A020V - Single Pilot Operated, Pilot to Open Check Valves

Parker’s P.O. check valve assemblies allow flow up to 150 lpm (40 gpm) with pressures up to 420 bar (6,000 psi). Return flow can be enable by an external pilot supply, which shifts the internal poppet into an open position.

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Brand Parker

Part No. D4A020V

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Products specifications

Attribute name	Attribute value
Maximum Operating Temperature	400 °F	Actuation Type	Pilot Operated
Weight	0.07 kg	Seal Material	Fluorocarbon
Body Material	n/a	Maximum Operating Pressure	6000 psi
Division	Hydraulic Cartridge Systems Division	For Fluid Type	Synthetic Hydraulic Fluids
Valve Material	Steel (all parts)	Operating Temperature	-26 to 204 °C
Filter Efficiency Rating	ISO 4406 18/16/13	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature	-15 °F	Maximum Flow Rate	8 Gal/min
Division	Mobile Hydraulic Systems Division Europe	Installation Torque	30 lb-ft
Maximum Inlet Pressure Rating	6000 psi	Pilot Pressure Ratio	4:1
Function	Single Pilot to Open Check	Flow Direction	2-1 Free Flow
Pilot Location	3	Leak Rate	3 drops/min @ 6000 Psi (420 bar)
Cracking Pressure	72 psi	Flow Rate	16 L/min @ 100 Psi (7 bar) Nominal
Cavity Size	53-1	Seal Material	Fluorocarbon
Maximum Flow Rate	8 GAL/MIN, 30 L/MIN	Cracking Pressure	72 PSI, 5 BAR

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