Electro-Proportional Valve
  Proportional Flow Control Valve, 4-Way

QSP08-47CL  = Reversing valve, 4-Way, 3-Position, Median Closed, Low-flow =



A solenoid-operated, 4-way, 3-position, spool-type, closed center, screw-in hydraulic cartridge valve with a maximum flow rate of 7.6 lpm (2 gpm).
When de-energized, the QSP08-47CL blocks flow to all ports. When coil #1 is energized, flow is allowed from ③ to ④, and from ② to ①. When coil #2 is energized, flow is allowed from③ to ②, and from ④ to ①.Initial meter-in flow begins at a nominal 0.4 amp on a 12 VDC system. Full flow of 3gpmoccurs at 1.0 to 1.1 amp on a 12 VDC system. Although port ① can be completely under pressure, but it does not use as an input port of the valve. In circuits where work port flows are unequal due to cylinder ratios, the higher return flow should be directed to port ②


Pressure (bar)
Proof Pressure (bar) Flow Internal Leakage
User Temperature(0C) Operation Voltage
 240 350  7.6 lpm/2 gpm 80 cc/min
(First remove inside air)
 -400~ 120  ± 15% voltage

.100% full inspection for all products.
.Standard product life tested for million cycles.
.1000-hour salt-spray anti-corrosion protection tested.
.Raw material, oil, electroplating, etc. in manufacturing process with RoHS compliance.
.All coils tested by third party notarization inspection & CE certified.
.Optional waterproof Coils rated up to IP65.
.Good linearity and multi industrial applications.
.Heat Treatment on spool, poppet, cage for long life and low leakage.
.Coil rated for continuous duty
.Customized coil voltages and terminations
.Cartridges are customized.
.Manual override option.
.Multi industrial applications.
.Compact size.
.Coil mold design with sufficient demands


Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: 7.6 lpm (2 gpm)
Internal Leakage: 80 cc/minute
User Temperature: -40° to 120°C (-40° to 248°F) with Buna seals;
User Temperature: -26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Filtration: With S: 100 mesh (149 micron)
Operation Voltage: ±15% voltage
Cavity: Q08-4; See page Q08-4



Related products:

Poppet-Type Solenoid Valve Spool-Type, Solenoid Valve
Proportional Flow Control Valve, 2-Way  Proportional Flow Control Valve, 4-Way