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A solenoid-operated, three-way, direct-acting, spool-type, screw-in hydraulic cartridge valve.
When de-energized, the SV08-31 allows flow from 2 to 1, while blocking flow at 3. When energized, the valve’s spool shifts to open from 1 to 3, while blocking at 2. While port 1 may be fully pressurized, it is not intended to be used as the inlet.
Operation of Manual Override Option: To override, push button in and twist counterclockwise 180°. The internal spring will push the button out. In this position, the valve may be only partially shifted. To assure full override shift, pull the button out to its fullest extension and hold it in this position.
To return to normal valve function, push button in, twist clockwise 180° and release. Override will be detented in this position.
• Continuous-duty rated solenoid.
• Hardened precision spool and cage for long life.
• Optional coil voltages and terminations.
• Efficient wet-armature construction.
• Cartridges are voltage interchangeable.
• All ports may be fully pressurized.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
• Unitized molded coil design.
• Compact size.
Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart; Note: Under certain operating conditions this valve may be rated for higher flow. Consult factory.
Internal Leakage: 82 cc/minute (5 cu. in./minute) max. at 207 bar (3000 psi)
Temperature: -40°C to 120°C with standard Buna seals; -26°C to 204°C with Fluorocarbon seals; -54°C to 107°C with Polyurethane seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Response Time: First indication of change of state with 100% voltage supplied at 80% of nominal flow rating:
Energized: 30 msec.; De-energized: 25 msec.
Initial Coil Current Draw at 20°C: Standard Coil: 1.2 amps at 12 VDC; 0.13 amps at 115 VAC (full wave rectified).E-Coil: 1.4 amps at 12 VDC; 0.7 amps at 24 VDC
Minimum Pull-in Voltage: 85% of nominal at 207 bar (3000 psi)
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: No restrictions; See page 9.020.1
Cavity: VC08-3; See page 9.108.1
Cavity Tool: CT08-3XX; See page 8.600.1
Seal Kit: SK08-3X-MM; See page 8.650.1
Coil Nut: Part No. 7004400; For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.