| Electro-Proportional Valve
Proportional Flow Control Valve, 4-Way
QSP08-47C = Reversing valve, 4-Way, 3-Position, Median Closed =
A solenoid-operated, 4-way, 3-position, spool-type, closed center, screw-in hydraulic cartridge valve.
When de-energized, the QSP08-47C 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 from ③ 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 11 lpm (3 gpm) occurs at 1.0 to 1.1 amp on a 12 VDC system. While ① may be fully pressurized, it is not intended for use as the valve’s inlet. In circuits where work port flows are unequal due to cylinder ratios, the higher return flow should be directed to port ②.
|Proof Pressure (bar)||Flow||Internal Leakage
|User Temperature(0C)||Operation Voltage|
|240||350||11 lpm/3 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.
．Continuous-duty rated solenoid.
．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.
．Coil mold design with sufficient demands.
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 350 bar (5075 psi)
Flow: 11 lpm (3 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
|Poppet-Type Solenoid Valve||Spool-Type, Solenoid Valve|
|Proportional Flow Control Valve, 2-Way||Proportional Flow Control Valve, 4-Way|