Created on 08/21/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 1 of 2
MODEL
FSFC
High accuracy flow divider valve
SERIES 4 / CAPACITY: 23 - 120 L/min. / CAVITY: T-34A
Flow dividers are sliding-spool, pressure-compensated devices used to split oil flow to two different branches of a
circuit in a designated ratio. These valves are suitable for applications that use the following: unidirectional hydraulic
motors, hydraulic cylinders where flow division in one direction only is required, and multiple circuits that are
serviced from one pump supply.
TECHNICAL DATA
Pressure Drop at Minimum Rated Input Flow 2 bar
Pressure Drop at Maximum Rated Input Flow 18 bar
Seal kit - Cartridge Buna: 990-034-007
Seal kit - Cartridge Polyurethane: 990-034-002
Seal kit - Cartridge Viton: 990-034-006
(X)CONTROL
X Not Adjustable
(A)FLOW SPLIT
A 50/50
(N)SEAL MATERIAL
N Buna-N
V Viton
snhy.com/
FSFC
TECHNICAL FEATURES
All flow divider and divider/combiner cartridges are physically interchangeable (i.e. same flow path, same cavity for a given frame size).
Operating characteristics cause the leg of the circuit with the greatest load to receive the higher percentage of flow in dividing mode. If a rigid mechanism is used to
tie actuators together, the lead actuator may pull the lagging actuator and cause it to cavitate.
In applications involving rigid mechanisms between multiple actuators, operating inaccuracy will cause the eventual lock-up of the system. If the mechanical structure
is not designed to allow for the operating inaccuracy inherent in the valve, damage may occur.
In motor circuits, rigid frames or mechanisms that tie motors together, and/or complete mechanical synchronized motion of the output shaft of the motors, either by
wheels to the pavement or sprockets to conveyors, will contribute to cavitation, lock-up and/or pressure intensification.
Variations in speed and lock-up can be attributed to differences in motor displacement, motor leakage, wheel diameter variance and friction of wheels on the driving
surface.
This valve is a divider only; any attempt to flow backwards through the valve is not advised.
Below the minimum flow rating there is not enough flow for the valve to modulate. It is effectively a tee. If flow starts at zero and rises, there will be no dividing
control until the flow reaches the minimum rating.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge
machining variations.
PERFORMANCE CURVES
Model Code Example: FSFCXANCONFIGURATION OPTIONS
Created on 08/21/2015
c
2015 Sun Hydraulics Corporation See www.sunhydraulics.com for detailed product information 2 of 2