Description
Post
Indicator / Butterfly Supervisory Switch -Model PCVS is a weather proof and
tamper resistant switch for monitoring the open position of fire sprinkler
control valves of the wall and yard post indicator and butterfly types. Two
SPDT (Form C) contacts are provided which will operate when the valve
position is altered from an open state. The unit mounts in a 1/2” NPT tapped
hole in the post indicator or butterfly valve housing. The device is engaged
by the indicating assembly of the post indicator or the operating mechanism
of the butterfly valve, actuating switches when the valve is fully open.
