Alarm Line Control Valve
Alarm Line Control Valve
(OP)
I am referring to the 1/2" ball valves typically found in the trim of Alarm\Dry\Deluge valves. NFPA 13, 2013 8.17.1.4 states that these valves should be sealed, locked, or electronically supervised. These are almost always 1/2" ball valves, and I don't think any of them are lockable ball valves, so how would the supervision be accomplished?





RE: Alarm Line Control Valve
I believe Potter sells a electronic 1/2" valve. The problem if the valve is closed no water gos to the flow switch and the central station. Can not tell u how many I have found closed.
RE: Alarm Line Control Valve
Also not every valve is supervised.
http://static.victaulic.com/assets/uploads/literat...
https://m.grainger.com/mobile/category/valve-locko...
RE: Alarm Line Control Valve
RE: Alarm Line Control Valve
RE: Alarm Line Control Valve
CDAFD, that second option looks like a reasonable alternative, thanks.
RE: Alarm Line Control Valve
What does it go to???
RE: Alarm Line Control Valve
I think I recall the IBC does not require the 1/2" valve to be supervised, never understood why they gave the exception, makes no sense to be given how many times I found them closed.
RE: Alarm Line Control Valve
RE: Alarm Line Control Valve