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Technical Feature
OPERATION:
The valve will block flow from ① to ② , and from ④ to ③ . Flow is allowed in the
opposite direction when pressure is applied to port ② and/or port ③ .
The valve has a 4.5:1 pilot ratio, so at least 1/4.5 of the load pressure at port ① or ④
is required at the pilot lines (port ③ or ② ) to open the flow passage to allow flow from
port ① or ④ . -
PerformanceCurves
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Technical Data
Operating Pressure207barFlowSee PRESSURE DROP VS.FLOW graph.Cavity08-4FiltrationRefer to "Cleanliness of Hydraulic Fluid"Internal Leakage2 drops/min.at 207barCrack Pressures0.4=0.4bar
1.7=1.7bar
3.4=3.4barPilot Ratio4.5 : 1Temperature-40ºF to +250ºF(-40ºC to +120ºC)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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