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Have a project that requires the sprinkler system to be zoned by the areas with active smoke control. Each floor of the highrise is approximately 12,000 sqft is to be divided into two zones. I intend to have multiple floor control risers (valve, check valve, flow switch, pressure gauge, inspector's test & drain) for each smoke control zone. Is there any less costly way of accomplishing this?
It has been suggested that multiple flow switches can be placed on the same system with different retard settings so that the fire alarm system can identify where the water is flowing, but I don't have experience with this option. Posted anonymously by a member for discussion. Discuss this | Subscribe.
3 Comments
MICHAEL CHARBONNEAU
11/5/2018 09:10:00 am
Completely unnecessary for additional risers. Use one bulk main and riser for the whole system. For each zone main put a flow switch and inspectors test valve. You can either have separate risers at a manifold at ground level or install the flow switches above ground. The object is only to actuate, by means of an electrical signal, the smoke control equipment for individual zones.
Rathnakara Achari
11/6/2018 02:04:04 am
Each smoke control zone shall be provided with Floor control valve or Zone control valve (supervised valve, check valve, flow switch, pressure gauge, inspector's test & drain). Check valve is required only if it is from combined riser. If separate standpipe and sprinkler riser is provided then you can avoid check valve.
JOE
11/6/2018 06:05:38 am
Where is this requirement coming from? Leave a Reply. |
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