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The 1SB304-P-12-S directional valve is manufactured by Vickers for the Directional Control Valves series and routes hydraulic flow in automation circuits. The screw-in cartridge installation mounts the valve directly into a manifold, and the A5302 cavity defines the bore dimensions needed for correct fit. A cartridge-only port type confines all connections inside the manifold block. Four valve ports supply the P, T, A, and B flow paths required for bidirectional actuator control. A nominal flow capacity of 30 L/min supports moderate circuit demands without excessive pressure drop, while a 350 bar pressure rating allows use in high-pressure industrial machinery.
This model is pilot-operated so the main spool shifts under fluid pilot force, and the pilot stage is set to actuate at 100 bar. Internal leakage is limited to 50 ml/min, reducing energy loss during idle conditions. Four housing ports line up with external plumbing when a cover is used. No auxiliary actuation option is fitted, and the valve omits a detent so the spool repositions only under hydraulic or spring force. Flow adjustment is completed with a leakproof screw that can be set without external seepage, allowing fine tuning while keeping the circuit clean.
Actuation Option
None
Adjustment Type
Leakproof Screw
Cavity
A5302
Detent Option
No
Flow Rate
30 L/min
Installation Type
Screw-In Cartridge
Leakage
50 ml/min
Number Of Housing Ports
4
Number Of Valve Ports
4
Operation
Pilot Operated
Pilot Pressure Setting
100 bar
Port Type
Cartridge Only
Pressure Rating
350 bar
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