The PD42-S50X is a screw-in, cartridge style, pilot-operated, spool type hydraulic directional valve.
In neutral position the valve allows flow from port 2 to port 3 bidirectionally, while port 4 is blocked. On remote pilot signal at port 1, the valve's spool shifts to allow flow from port 3 to port 4, while blocking flow to port 2. Since port 5 is common to the spring chamber, pressure on port 5 will directly (1:1) affect the pilot pressure required and must be added to the bias spring value.
- Hardened spool and cage for long life.
- Optional open transition for ports 2, 3 and 4.