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811-SS-OSY Series - Supervisory Switch For OS&Y Valves
The SOVAL UL / FM Supervisory Switches for OS&Y gate valves are designed for both indoor and outdoor use. The SOVAL 811-SS_OSY contains two synchronized switches enclosed in a durable terminal block. The Supervisory Switches (also called “tamper switches”) are enclosed in a sturdy, die-cast housing, offering the ultimate in accuracy and reliability. UL / ULC Listed / FM Approved.
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SKU
811_ss_osy
| This Supervisory Switch is used to monitor the open position of an OS&Y (outside screw and yoke) type gate valve. These switches mount conveniently to most OS&Y valves ranging in size from 2” to 24” (50mm to 600mm). 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. The Supervisory Switch is a 3 position switch. The center position is the normal installation position. Normal is when the switch is installed on the OS&Y valve, the valve is fully open and the trip rod of the Supervisory Switch is in the groove of the valve stem. Closing the valve causes the trip rod to ride up out of the groove and activates the switches. Removing the Supervisory Switch from the valve causes the spring to pull the trip rod in the other direction and activates the switches.* For indoor and outdoor use temp range -40°c to 60°c* Use with Outside Screw and yoke (OS&Y) gate Valves * Die Cast finished enclosure, red powder coated * Two Synchronized switches enclosed in a durable terminal block * Accurate and repeatability* UL/ULC Listed * FM Approved |
