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A solenoid-operated, two-way, normally closed, poppet-type, bi-directional blocking, screw-in hydraulic cartridge valve, designed for low leakage in load-holding applications.
When de-energized, the SV38-28 blocks flow in both directions. When energized, the
valve’s poppet opens on its seat, allowing flow from ➁ to ➀ and ➀ to ➁. Consult factory if used serially with orifice disc.
Operation of Manual Override Option: To override, push and hold override button.
• Continuous-duty rated coil.
• Hardened seat for long life and low leakage.
• Optional coil voltages and terminations.
• Effi cient wet-armature construction.
• Cartridges are voltage interchangeable.
• Unitized, molded coil design.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
Operating Pressure: 207 bar (3000 psi)
Flow: See Performance Chart
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. at 207 bar (3000 psi)
Cycle Life: 500,000 cycles minimum at rated pressure (due to internal dynamic seal life)
Temperature: -40 to 100°C with standard Buna N seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Initial Coil Current Draw at 20°C: Standard Coil: 1.67 amps at 12 VDC; 0.18 amps at 115 VAC (full wave rectifi ed). E-Coil: 1.7 amps at 12 VDC; 0.85 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: VC08-2; 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. 7004420; For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.