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Single Pilot Operated, Pilot to Open Check Valves - D4A020N

Name: Single Pilot Operated, Pilot to Open Check Valves - D4A020N
SKU: D4A020N
Availability: OutOfStock

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.

Availability: Backordered

SKU: D4A020N

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Products specifications

Attribute name	Attribute value
Body Material	N/A	Seal Material	Nitrile
Minimum Operating Temperature	-30 °F	Maximum Operating Pressure	6000 psi
For Fluid Type	Synthetic Hydraulic Fluids	Division	Hydraulic Cartridge Systems Division
Filter Efficiency Rating	ISO 4406 18/16/13	Maximum Kinematic Viscosity	45-2000 SSU (6 to 420 cSt)
Maximum Operating Temperature	121 °C	Actuation Type	Pilot Operated
Maximum Flow Rate	8 Gal/min	Division	Mobile Hydraulic Systems Division Europe
Valve Material	Hardened Steel (all operating parts)	Installation Torque	40 Nm
Operating Temperature	-34 to 121 °C	Maximum Inlet Pressure Rating	420 bar
Weight	0.14 lb	Pilot Pressure Ratio	4:1
Function	Single Pilot to Open Check	Flow Direction	2-1 Free Flow
Leak Rate	3 drops/min @ 6000 Psi (420 bar)	Cracking Pressure	72 psi
Pilot Location	3	Flow Rate	16 L/min @ 100 Psi (7 bar) Nominal
Cavity Size	53-1
Seal Material	Nitrile	Maximum Flow Rate	8 GAL/MIN, 30 L/MIN
Cracking Pressure	72 PSI, 5 BAR

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