Potter PCVS-2 Control Valve Supervisory Switch

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  • Regular price $135.00

The Model PCVS is a weather proof and tamper resistant switch for monitoring the open position of fire sprinkler control valves of the post indicator, butterfly and other types. Depending on the model, one or 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. The unit should be installed where it is accessible for service.

The cover is held in place by two tamper resistant screws that require a special tool to remove. The tool is furnished with each device and should be left with the building owner or responsible party. Replacement or additional cover screws and hex keys are available.


The PCVS and its associated protective monitoring system should be tested in accordance with applicable NFPA codes and standards and/or the authority having jurisdiction (manufacturer recommends quarterly or more frequently).

Dimensions 4.75"L x 2.25"W x 8.2"H (stem extended) 12,1cm L x 5,7cm W x 18,3cm H
Weight 1.35 lb. (0,61 kg.)
Enclosure Cover - Die-cast, Finish - Red Spatter Enamel, Base - Die Cast Zinc. All parts have corrosion resistant finishes
Cover Tamper Tamper Resistant Screws
Mounting 1/2" NPT
Contact Rating PCVS-2: Two sets of SPDT (Form C), 15 Amps at 125/250VAC, 2.5 Amps at 30VDC resistive
Environmental Limitations -40°F to +140°F (-40°C to 60°C)

NEMA 4 and NEMA 6P Enclosure (IP67) when used with appropriate watertight conduit fi ttings.

UL, ULC, and CSFM Listed, FM Approved, NYMEA Accepted, CE Marked>