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Parker D4A040N - 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. D4A040N

$0.01

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Products specifications

Attribute name	Attribute value
UOM	EA	Seal Material	Nitrile
Actuation Type	Pilot Operated	Maximum Operating Temperature	250 °F
Body Material	n/a	Division	Hydraulic Cartridge Systems Division
For Fluid Type	Mineral-based Hydraulic Fluids	Valve Material	Steel (all parts)
Filter Efficiency Rating	SAE Class 4	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Minimum Operating Temperature	-30 °F	Installation Torque	40 lb-ft
Weight	0.33 lb	Maximum Operating Pressure	420 bar
Division	Mobile Hydraulic Systems Division Europe	Operating Temperature	-30 to 250 °F
Maximum Inlet Pressure Rating	420 bar	Pilot Pressure Ratio	4:1
Maximum Flow Rate	60 L/min	Function	Single Pilot to Open Check
Flow Direction	2-1 Free Flow	Pilot Location	3
Leak Rate	3 drops/min @ 6000 Psi (420 bar)	Flow Rate	32 L/min @ 100 Psi (7 bar) Nominal
Cavity Size	68-1	Cracking Pressure	43.5 psi
Seal Material	Nitrile	Maximum Flow Rate	16 GAL/MIN, 60 L/MIN
Cracking Pressure	43.5 PSI, 3 BAR

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