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- Fire Protection Products, Supervisory Switch
BT-OSY-1
- The BT OSY-1 is a supervisory switch designed to monitor whether an OS&Y gate valve is open or closed. Mount the switch on the valve so that it does not block valve movement. The switch must trigger within two full turns of the handwheel, or before the stem moves one-fifth of its total travel distance. The unit features one SPDT…
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- Fire Protection Products, Supervisory Switch
BT-PIV-1
- The BT-PIV-1 supervisory switch is designed to monitor the open position of wall and yard Post Indicator Valves (PIVs) / Butterfly Valves used in fire protection systems. The switch must be installed ensuring it does not interfere with the normal operation of the valve. It must be adjusted to operate within two complete turns of the valve operating mechanism, or…
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- Fire Protection Products, Supervisory Switch
BT-PSP-1
- The BT-PSP-1 Supervisory Switch is a special-purpose monitoring device designed for applications where conventional valve supervisory switches cannot be used, such as non-rising stem gate valves. During normal operation, the switch remains in the set position. When the valve handwheel is turned, the internal plug is withdrawn from the switch body, causing the normally open contacts to close and send…
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- Electrical Switches, Fire Protection Products, Water Flow Switches
BT-WFDT
- The WFDT is a vane-type waterflow detector intended for wet sprinkler systems. FM Approved for steel-pipe (schedule 10 through 40) installations, it is offered in sizes from 25 mm to 50 mm. Suitable for mounting on 1", 14" , 1½" and 2" Ferrous / Brass Tees. The unit features a non-corrosive vane insert and an enclosure suitable for both indoor…
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- Electrical Switches, Fire Protection Products, Water Flow Switches, Zone Control Valve & Accessories
Water Flow Detectors
- The WFD is a vane-type waterflow detector intended for wet sprinkler systems. FM Approved for steel-pipe(schedule 10 through 40) installations, it is offered in sizes from50 mm to 200 mm. The unit features a non-corrosive vaneinsert and an enclosure suitable for both indoor and outdoor installation. Fitted with an adjustable pneumatic retard, the device contains two single-pole, double-throw snap-action switches…
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