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A solenoid-operated, two-way, normally closed, internally piloted, poppet-type, bi-directional blocking, screw-in hydraulic cartridge valve, designed for low leakage in load-holding applications.
When de-energized, the SV20-28 blocks flow in both directions. When energized,
the valve’s poppet opens on its seat, allowing flow from ➁ to ➀ or ➀ to ➁
• Continuous-duty rated coil.
• Optional coil voltages and terminations.
• Effi cient wet-armature construction.
• Cartridges are voltage interchangeable.
• Waterproof E-Coils rated up to IP69K.
• Hardened seat for long life and low leakage.
• Unitized, molded coil design.
• Cost-effective cavity.
Operating Pressure: 207 bar (3000 psi)
Flow: Up to 303 lpm (80 gpm)
Internal Leakage: 5 drops/minute max. at 207 bar (3000 psi)
Operating Temperature: -40° to 100°C (-40° to 212° F) with standard Buna N seals
-26° to 204°C (-15° to 400°F) with Fluorocarbon seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Initial Coil Current Draw at 20°C: Standard D-Coil: 1.2 amps at 12 VDC; E-Coil: 1.4 amps at 12 VDC; 0.7 amps at 24 VDC
Minimum Pull-in Voltage: See Chart on this page.
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: VC20-2; See page 9.120.1
Cavity Tool: CT20-2XX; See page 8.600.1
Seal Kit: SK20-2x-M; See page 8.650.1
E-Coil Nut: Part No. 7085180125.5/804.1/602.8/401.4/2038102276018950FLOW lpm/gpmDIFFERENTIAL PRESSURE bar/psi32 cSt/150 sus oil at 40°C265706.9/1008.3/1209.7/14076201514011430303801 to 22 to 111012060705040302010-20-10-30-401008090706050% OF RATED VOLTAGEAMBIENT TEMPERATURE (°C)CONTINUOUS DUTY OPERATING RANGEMinimum Voltage at the Coil Required for Pull-In32 cSt/150 sus oil at 40°COperating Range