PILOT TO SHIFT - 3W INTERNAL PILOT & EXTERNAL DRAIN

Mechanical Directional Control Valves
Pilot to Shift
3 Way Internal Pilot & External Drain
The valve in neutral (un-piloted), allows flow between (3) and (2) bi-directionally, while blocking at (4)
The spring chamber is constantly vented at (1)
On attainment of a predetermined pressure at (4), the cartridge shifts to close (3) to (2), while opening (4) to (3)
Note: that the backpressure valve at (1) must be added to the selected pressure setting to determine pilot pressure necessary to shift valve to second position
Hardened parts for long life
Industry common cavity