AMV Shut-Off Pilot Model 3W-SOP

This 3-Way Shut-off Pilot Valve is a spring-return, flap actuated pilot
valve that in response to pushing a spool against a spring, directs
pressure and flow between its ports:

•  In Set Position the SOP spool is pushed closed, thereby hydraulically

connecting ports “C” and “V”

•  In Normal Position the SOP spool is returned by the spring action,

hydraulically connecting ports “P” and “C”
By manually turning the AMV setting knob, the flap is actuated to push
the spool. After delivering the preset quantity of water, the flap slips into
a groove in the turning control head mechanism, allowing the spool to
return to Normal Position.