Electro-Proportional Valves — Directional Control

SP08-47C — Spool-Type, 4-Way, 3-Position, Closed Center
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SP08-47C Valve

SYMBOL:SP08-47C Valve symbol

 

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: Std D-Coil Spacer Part No. 7012940; E-Coil Spacer Part No. 4534720;
If cartridge is ordered "Less Coil," D-Coil spacer will be provided unless an E is specified
in the Coil Termination To Order section

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



 

 

PERFORMANCE:

SP08-47C Performance graph 1

 

SP08-47C Performance graph 1

DIMENSIONS:

SP08-47C Valve Dimensions

 

MATERIALS:

Cartridge: Weight: 0.13 kg (0.28 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and back-ups standard.

Standard Ported Body: Weight: 0.27 kg
(0.60 lb); Anodized high-strength 6061 T6
aluminum alloy, rated to 207 bar (3000 psi);
Ductile iron bodies available; dimensions
may differ. See page 8.008.1_4w.

Standard D-Coil: 2 required; Weight each:
0.11 kg (0.25 lb); Unitized thermoplastic
encapsulated, Class H high temperature
magnetwire. See page 3.200.1_08-size.

E-Coil: 2 required; Weight: 0.14 kg
(0.3 lb); Perfect wound, fully encapsulated
with rugged external metal shell; Rated
up to IP69K with integral connectors.
See page 3.400.1_08-size.

 

ORDERING CHART:

SP08-47C Ordering Chart