Solenoid-Operated On/Off Valve

SV12-20 — Poppet-Type, 2-Way, Normally Closed
  Selection guide - similar valves.
  PDF file of this page.
  Valve Features and Benefits.
  STP file for SV12-20.
  Request a quote.

SV12-20 Valve

SYMBOL:
SV12-20 Valve symbol

DESCRIPTION
A solenoid-operated, 2-way, normally closed, piloted poppet-type, screw-in hydraulic cartridge
valve, for blocking or load-holding in applications requiring low internal leakage.

OPERATION
When de-energized, the SV12-20 acts as a check valve, allowing flow from 1 to 2, while blocking flow
from 2 to 1. When energized, the cartridge’s poppet lifts to open the 2 to 1 flow path. In this mode,
flow from 1 to 2 is severely restricted. If this path is required, see model SV12-22, page 1.045.1.
Operation of Manual Override Option: To override, push button in, twist counterclockwise 180°,
and release. In this position, the valve will remain open. To return to normal operation, push button in,
twist clockwise 180°, and release. Override will be detented in this position.

FEATURES
• Continuous-duty rated coil.
• Hardened seat for long life and low leakage.
• Optional coil voltages and terminations.
• Efficient wet-armature construction.
• Cartridges are voltage interchangeable.
• Unitized, molded coil design.
• Manual override option.
• Optional waterproof E-Coils rated up to IP69K.
• Cost-effective cavity.

RATINGS
Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 345 bar (5000 psi)
Flow: Up to 114 lpm (30 gpm)
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at 240 bar (3500 psi)
Temperature: -40° to 100°C (-40° to 212°F) with standard Buna seals
Coil Duty Rating: Continuous from 85% to 115% of nominal voltage
Response Time: First indication of change of state with 100% voltage supplied
   at 80% of nominal flow rating: Energized: 40 msec. De-energized: 80 msec.
Initial Coil Current Draw at 20°C: Standard Coil: 1.67 amps at 12 VDC;
   0.18 amps at 115 VAC (full wave rectified).
   E-Coil: 1.7 amps at 12 VDC; 0.85 amps at 24 VDC
Minimum Pull-in Voltage: 85% of nominal at 240 bar (3500 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: VC12-2; See page 9.112.1_2w
Cavity Tool: CT12-2xx; See page 8.600.1
Seal Kit: SK12-2x-T; See page 8.650.1
Coil Nut: Part No. 7004400

PERFORMANCE:

SV12-20 Valve Performance Chart
  DIMENSIONS:

SV12-20 Valve Dimensions

Dimensions will differ significantly with Sensor Option; see page 3.010.1.


MATERIALS:

Cartridge: Weight: 0.33 kg. (0.72 lbs.);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-up standard.

Standard Ported Body:
Weight: 0.57 kg. (1.25 lbs.); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.012.1_2w.

Standard D-Coil: Weight each:
0.27 kg. (0.60 lbs.); Unitized thermoplastic encapsulated, Class H high temperature magnetwire.
See page 3.200.1_10-size.

E-Coil: Weight: 0.41 kg. (0.9 lbs.); Perfect wound, fully encapsulated with rugged
external metal shell; Rated up to IP69K
with integral connectors.
See page 3.400.1_10-size.
  ORDERING CHART:

SV12-20 Ordering Chart Manual Override Options

Selection guide - similar valves.
PDF file of this page. Valve Features and Benefits. STP file for SV12-20. Request a quote.