Hydraulic Symbol
Description
A screw-in, cartridge-style, pilot-operated, spool-type, hydraulic directional valve for three-way circuits requiring remote pilot actuation.
Operation
In neutral (unpiloted), the valve allows flow from port 3 to port 4. Port 2 is blocked. On remote pilot signal at port 1, the valve shifts to open from port 3 to port 2, while blocking flow to port 4. Since port 4 is common to the spring chamber, pressure on port 4 will directly (1:1) affect the pilot pressure required, and must always be added to the bias spring value. Note: Consult factory for applications where bidirectional flow is required when the valve is in the normal or spring-offset position.
Technical Data
| Operating Pressure | 240 bar / 3500 psi |
|---|---|
| Flow | See Performance Chart |
| Cavity | T10-4A |
| Internal Leakage | 82 cc/minute (5 cu. in./minute) max. at 207 bar / 3000 psi |
| Temperature | -40°C to 120°C with standard Buna seals |
Performance Curve
Flow performance should be reviewed together with pressure drop and working conditions.
Dimensions
Dimension drawing is provided for installation and cavity review.
Materials & Ordering Options
Materials, seal options, coil voltage, connector types and ordering options are shown for product selection review.
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Useful RFQ Information
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- Original part number, current supplier reference or product photos
- Voltage, connector type and coil dimensions, if applicable
- Cavity, pressure, flow and seal requirements, if applicable
- Equipment application and expected quantity
- For custom manufacturing or special matching, drawings, samples or detailed photos are recommended for accurate review.
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