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A solenoid-operated, 2-way, normally open, poppet-type, screw-in hydraulic cartridge valve, designed to function as a load-holding or blocking valve in applications requir-ing low internal leakage.
When de-energized, the SV16-21 poppet lifts to open the ➁ to ➀ flow path. In this mode, flow from ➀ to ➁ is severely restricted. If this path is required, see model SV16-23, page 1.055.1.
When energized, the ➁ to ➀ flow path is closed. In this mode, the valve acts as a check valve, allowing flow to pass from ➀ to ➁ after overcoming the solenoid force (requires 3.4 to 10.3 bar / 50 to 500 psi).
Operation of Manual Override Option: To override, push and hold override button.
• Continuous duty-rated solenoid.
• 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.
• Industry common cavity.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
Operating Pressure: 207 bar (3000 psi); Under certain operating conditions, this valve may be used at higher pressures; consult factory.
Proof Pressure: 345 bar (5000 psi)
Flow: See Performance Chart
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 207 bar (3000 psi)
Temperature: -40 to 120°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: 1.67 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: VC16-2; See page 9.116.1
Cavity Tool: CT16-2XX; See page 8.600.1
Seal Kit: SK16-2X-T; See page 8.650.1
Coil Nut: Part No. 700440; For E-coils manufactured prior to 1-1-04, see page 3.400.1 for coil nut info.