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hydraulic control solutions



SV20-S39 (SV20-S39)

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Product Description

A solenoid-operated, normally open, poppet-type, screw-in hydraulic cartridge valve, designed to operate as a bidirectional load-holding or blocking valve in high flow circuits requiring low internal leakage.

Product Operation

When the SV20-S39 is energized, it functions as a check valve, allowing flow from ➀ to ➁ while blocking flow from ➁ to ➀. When de-energized, the poppet lifts to open the ➁ to ➀ flow path while also allowing flow from ➀ to ➁. Port ➂ is typically connected to the reservoir.

Product Features

Continuous-duty rated solenoid.
Manual override option.
Hardened precision spool and cage. • Optional E-Coils rated up to IP69K.
Optional coil voltages and terminations.
Unitized, molded coil design.
Effi cient wet-armature construction.
Industry common cavity.
Cartridges are voltage interchangeable.

Product Ratings

Operating Pressure: 293 bar (4250 psi)
Flow: 378 lpm (100 gpm) max.
Internal Leakage: 1 ml/minute (0.06 cu. in./minute) max. at 293 bar (4250 psi)
Temperature: -40 to 100°C with standard Buna seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Initial Coil Current Draw at 20°C: Standard Coil: 1.2 amps at 12 VDC; 0.13 amps at 115 VAC (full wave rectifi ed). 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)
Temperature: -40 to 120°C with standard Buna seals
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: VC20-S3, Variation "A"; See page 9.120.1
Cavity Tool: CT20-S3xx; See page 8.600.1
Seal Kit: SK20-S3x-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.