Solenoid-Operated On/Off Valve

SV12-33 — Spool-Type, 2-Position, 3-Way
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SV12-33 Valve


SV12-33 Valve symbol
A solenoid-operated, two-position, three-way, direct-acting spool-type, screw-in hydraulic
cartridge valve, intended as a bidirectional blocking valve.

When de-energized, the SV12-33 allows flow between 3 and 1 while blocking flow at 2. When energized,
the cartridge’s spool shifts to open flow between 2 and 1, while blocking 3. While port 1 may be fully
pressurized, it is not intended to be used as the inlet.

• Bidirectional operation.
• Continuous-duty rated coil.
• Hardened precision spool and cage for long life.
• Optional coil voltages and terminations.
• All ports may be fully pressurized.
• Heavy-duty waterproof E‑Coils rated up to IP69K.

Operating Pressure: 240 bar (3500 psi)
Proof Pressure: 483 bar (7,000 psi) max
Burst Pressure: 690 bar (10,000 psi) max
Flow: Up to 60 lpm (16 gpm)
Internal Leakage: 410 cc/minute (25 cu. in./minute) max. at 240 bar (3500 psi)
Temperature: -40 to 100 °C (-40 to 212 °F) with Buna seals;
   -26 to 204 °C (-15 to 400 °F) with fluorocarbon seals;
Coil Duty Rating: See Chart
Response Time: Pull-In: 90 msec Drop-Out: 17 msec; Indication of shift with nominal voltage:
   Pull-In: 130 msec; Drop-Out: 128 msec per NFPA/T3.5.30-19xx
Initial Coil Current Draw at 20 °C: 2.6 A at 12 Vdc;
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: VC12-3; See page 9.112.1_3w
Cavity Tool: CT12-3xx See page 8.600.1
Seal Kit: SK12-3x-MM; See page 8.650.1
Coil Nut: Part No. 7085180



SV20-S39 Valve Performance Graph

SV12-33 Valve Performance Chart




SV12-31 Valve Dimensions



Cartridge: Weight: 0.39 kg (0.87 lb) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Buna N O–rings and TFE back-ups standard.

Standard Ported Body: Weight: 0.98 kg (2.15 lb); Anodized high-strength aluminum alloy, rate to 207 bar (3000 psi); Ductile iron bodies available; dimensions may differ.
See page 8.012.1_3w.

E‑Coil: Weight: 1.36 kg (3.0 lb); Perfect wound, fully encapsulated with rugged external metal shell; Rated up to IP69K with integral connectors.
See page 3.400.1_12-size.



SV12-33 Ordering Chart