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DESCRIPTION
A solenoid-operated, normally open, poppet-type, screw-in hydraulic cartridge valve designed to operate as a bi-directional load-holding or blocking valve in high-flow circuits requiring low internal leakage.
OPERATION
When energized, the SV20-S39 functions as a check valve, allowing flow from 1 to 2 while blocking flow from 2 to 1. When de-energized, the poppet lifts to open the 2 to 1 flow path while also allowing flow from 1 to 2 . Port 3 is typically connected to the reservoir.
FEATURES
• Continuous-duty rated coil.
• Hardened seat for long life and low leakage.
• Optional coil voltages and terminations.
• Cartridges are voltage interchangeable.
• Manual override option.
• Unitized, molded coil design.
• Optional waterproof E-Coils rated up to IP69K.
• Industry common cavity.
RATINGS
Operating Pressure: Up to 293 bar (4250 psi)
Pressure rating established per NFPA/T2.6.1 R2-2000 using 90% assurance
and 90% verification levels for 1 million cycles.
Flow: Up to 378 lpm (100 gpm)
Internal Leakage: 1 ml/minute (0.06 cu. in./minute) max. at 293 bar (4250 psi)
Temperature: -40° to 100°C (-40° to 212°F) with Buna seals;
-54° to 104°C (-65° to 225°F) with Polyurethane 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 Coil: 1.2 amps at 12 VDC;
0.13 amps at 115 VAC (full wave rectified).
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)
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; See page 9.120.1_3w
Cavity Tool: CT20-S3xx; See page 8.600.1
Seal Kit: SK20-S3x-MM; See page 8.650.1
Coil Nut: Part No. 7004400 |
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DIMENSIONS: |
MATERIALS:
Cartridge: Weight: 0.74 kg. (1.63 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces;
Buna N O-rings and polyester elastomer
back-up standard.
Standard Ported Body: Weight: 1.65 kg. (3.65 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ. See page 8.020.1_3w.
Standard D-Coil: Weight each: 0.11 kg.
(0.25 lbs.); Unitized thermoplastic encapsulated, Class H high temperature magnetwire. See page 3.200.1_08-size.
E-Coil: Weight: 0.14 kg. (0.3 lbs.); Perfect wound, fully encapsulated with rugged
external metal shell; Rated up to IP69K
with integral connectors.
See page 3.400.1_08-size. |
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