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| Butterfly Valve UL FM |
Butterfly Valve UL FM - SHIELD
The SHIELD Butterfly valve is of gear wheel operated type is a durable,
easy handling. The Body is Bronze material, along with UL listed factory
installed inbuilt tamper/supervisory switch. Normally the valve is
operated to open or close the valve by hand wheel manually and closed
slowly to minimize water hammering effectively. The inbuilt supervisory
switch is provided with dry contacts to interface with fire alarm system
for monitoring the valve status, whether closed or open, during
maintenance and make awareness to the control room for monitoring. The
tamper switch operates by a cam connected to the valve stem. The switch
will change position and close with two (2) full turns of the hand wheel
from the fully open position. The switch shall be connected as per the
schematic shown below and accordance to NFPA70 & 72 Water flows in
both direction and the valve can be installed either vertically or
horizontally as required.
Type : Grooved, Wafer, Threaded with size request available
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