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Technical Feature
OPERATION:
Pressure at ① overcomes the spring-bias poppet and allows free flow to ② . Flow in the opposite direction, from ② to ① ,is blocked by the poppet.
When the required pilot pressure is achieved at ③ ,the poppet is held closed to block flow between ① and ② .The pilot piston area to poppet seat area ratio is 3 to 1.
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PerformanceCurves
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Technical Data
Operating Pressure250BarFlowSee PRESSURE DROP VS.FLOW graph.Cavity10-3FiltrationRefer to "Cleanliness of Hydraulic Fluid"Internal Leakage2 drops/min. max. at 250barCrack Pressures2.1=2.1bar
3.4=3.4bar
6.2=6.2barPilot Ratio3:01Temperature-40°F to +250°F(-40°C to +120°C)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body Material6061-T6 aluminum alloy rated to 207bar, Steel & Ductile iron rated to 350bar -
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