This valve is used to open the inlet to a hydraulic circuit (Valve normally closed).
Once the spool is mechanically actuated the flow is free from P to A. It can be principally used for:
a) setting the sequence of 2 actuators
b) as an end of stroke valve, where the flow is connected to tank.
Zinc-plated steel with internal parts in hardened and ground steel
Connect P to the circuit and A directly to tank.
The mounting scheme can vary according to the use