DESCRIPTION
A solenoid-operated, 4-way, 3-position, spool-type, closed center, screw-in hydraulic cartridge valve.
OPERATION
When de-energized, the SP08-47C 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.
In circuits where work port flows are unequal due to cylinder ratios,
the higher return flow should be directed to port 2.
NOTE: While 1 may be fully pressurized, it is not intended for use as the valve’s inlet.
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.
Each coil has its own metering characteristics, which are quite similar (see performance chart).
FEATURES
• Continuous-duty rated solenoid.
• Hardened precision spool and cage for long life.
• Optional coil voltages and terminations.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
• Efficient wet-armature construction.
• Cartridges are voltage interchangeable.
• Good linearity and hysteresis.
• Industry-common cavity.
RATINGS
Operating Pressure: 240 bar (3500 psi)
Flow: Up to 11 lpm (3 gpm) based on 50% duty-cycle and coil temperature of 20°C (140°F).
Consult factory if higher duty-cycle and coil temperatures are anticipated.
Internal Leakage: 164 cc/minute (10 cu. in./minute) max. per side at 207 bar (3000 psi)
Hysteresis: Less than 7%
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Coil Duty Rating: Continuous up to 115% of nominal voltage
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: When possible, the valve should be mounted below the reservoir oil level.
This will maintain oil in the armature preventing trapped air instability.
If this is not feasible, mount the valve horizontally for best results; See page 9.020.1
Cavity: VC08-4; See page 9.108.1_4w
Cavity Tool: CT08-4xx; See page 8.600.1
Seal Kit: SK08-4x-MMM; See page 8.650.1
Coil Nut: Part No. 7004400; Manual Override Coil Nut: Part No. 4528180
Coil Spacer: Part No. 4534720
RECOMMENDED ELECTRONIC CONTROLLERS
The EVDR Series controllers are recommended for use with most HydraForce proportional valves.
These newer electronic controllers are versatile, reliable, and easily configured and customized
for a wide range of applications. See the EVDR Product Selection Guide.
For other Electronic Controllers, see page 2.001.1_pdf |
