Single Pilot Operated, Pilot to Open Check Valves - D4A040N

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: D4A040N
POR
Products specifications
Attribute nameAttribute value
Body MaterialN/AMaximum Operating Temperature250 °F
Maximum Operating Pressure420 barSeal MaterialNitrile
Minimum Operating Temperature-30 °FFor Fluid TypeMineral-based Hydraulic Fluids
DivisionHydraulic Cartridge Systems DivisionFilter Efficiency RatingSAE Class 4
Maximum Kinematic Viscosity45-2000 SSU (6 to 420 cSt)Actuation TypePilot Operated
Installation Torque40 lb-ftMaximum Flow Rate60 L/min
DivisionMobile Hydraulic Systems Division EuropeValve MaterialSteel (all parts)
Operating Temperature-30 to 250 °FMaximum Inlet Pressure Rating420 bar
Pilot Pressure Ratio4:1FunctionSingle Pilot to Open Check
Flow Direction2-1 Free FlowLeak Rate3 drops/min @ 6000 Psi (420 bar)
Pilot Location3Weight0.33 lb
Flow Rate32 L/min @ 100 Psi (7 bar) NominalCavity Size68-1
Cracking Pressure43.5 psi
Seal MaterialNitrileMaximum Flow Rate16 GAL/MIN, 60 L/MIN
Cracking Pressure43.5 PSI, 3 BAR
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