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A proportional solenoid-operated, 2-way, bi-directional, poppet-type, normally closed, screw-in hydraulic cartridge valve for low-leakage blocking and load-holding.
When de-energized, the SP08-22 acts as a check valve, allowing flow from 1 to 2, while blocking flow from 2 to 1. When energized, the poppet lifts to open the 2 to 1 flow path. Flow is proportional to current applied to the coil. The reverse-flow check allows unrestricted flow from 1 to 2 when the valve is energized, but this flow is not proportional to the current.
Note: External circuitry is required to ramp current.
Note: If low voltage is expected on the machine, 12 or 24 volt systems will require the use of 10 volt or 20 volt coils respectively. See “SP Valves and Coil Operating Parameters,” page 2.002.1.
• Industry-common cavity.
• Hardened steel work surfaces.
• Continuous-duty rated coils.
• Optional waterproof E-Coils rated up to IP69K
Operating Pressure: 207 bar (3000 psi)
Flow: 30.3 lpm (8 gpm) nominal
Max. Internal Leakage: 5 drops per minute at 207 bar (3000 psi)
Temperature: -40 to 100°C with standard Buna seals
Filtration: Recommend ISO 4406 16/13; 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: VC08-2; See page 9.108.1;
Cavity Tool: CT08-2XX; See page 8.600.1
Seal Kit: SK08-2X-M; See page 8.650.1
Coil Nut: Part No. 7004400; For E-coils manuf. prior to 1-1-04, see page 3.400.1
