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0-90 gpm (0-341 lpm)0 pages
HIGH VOLUME FULL RANGE PRESSURE
COMPENSATING VARIABLE FLOW CONTROL
“FC”
CONTROLLED
FLOW (CF)
EXCESS
FLOW (EX)
FC51
INLET (IN)
FEATURES:
PRECISION GROUND PLATED SPOOL that assures long life.
DIAMOND HONED SPOOL BORE provides consistent spool fit with low leakage.
EVERY FC IS TESTED for shutoff, linearity, and pressure compensation.
STANDARD 3-PORT allows for pressure compensated flow out of two ports.
SPECIFICATIONS:
MATERIALS:
See flow chart for capacity.
Rated for 3000 psi (207 bar).
Weighs 28 – 3/4 lbs. (13.0 kg).
30-Micron Filtration Recommended.
Torque to turn side lever spool.
-40 in*lbs (4.5Nm) with 3000 (207 bar) psi
on CF port or the EX port.
Ductile Cast Iron Body.
Heat Treated Steel Spools.
Buna N O’Rings.
Consult factory for stainless steel rotary
spool.
FC – GENERAL INFORMATION
The Brand, full range pressure compensating variable flow control is designed so that the orifice area varies
as the lever is rotated. Fluid travels past the variable orifice, by the compensator spool and then out the
controlled flow port. Therefore the flow out of the CF port is proportional to the orifice area which can
vary from closed to wide open. The sum of the controlled flow and the excess flow equals the inlet flow
and as the controlled flow increases the excess flow decreases. Both outlet flows are pressure compensated
with a spool that maintains a constant flow while adjusting for pressure. Hunting between the compensated
pump and our valve is dampened with a cross hole in the casting. Thus, the outlet flow is smooth and
constant regardless of the pressure on the CF and EX port.
12-13
Page B-5
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