A screw-in, cartridge style, pilot operated, spool-type hydraulic directional valve for three-way circuits requiring remote hydraulic pilot actuation.
In neutral (unpiloted) position the PD42-M42 allows flow from port 3 to 2, bidirectionally, while flow is blocked at 4. On remote pilot signal at 1, the valve shifts open from 3 to 4, while blocking flow at 2. Note that 4 is common to the spring chamber and the pressure at 4 will directly (1:1) affect required pilot pressure and must always be added to the bias spring value.
- Hardened spool and cage for long life.
- Optional sealed pilot
- Industry-common ISO cavity.