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The PSP1 anti-tamper switch is used on non-rising stem gate valves and ball and angle valves.
The PSP1 consists of a rugged weatherproof metal housing and may be used in either indoor or outdoor applications. It features a 360° versatile mounting design and an adjustable length cord to accommodate all installations.
The PSP1 employs a supervisory cord which, when pulled out, closes a set of normally open contacts. A lockout feature prevents reinsertion of the cord until the cover is removed, and the unit is reset. Removal of the cover or cutting of the cord results in an open circuit.