os&y gate valve
os&y gate valve
(OP)
At the base of each riser we put os&y gate valve and tamper switch ??????
please advice
please advice
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RE: os&y gate valve
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: os&y gate valve
does not have to be osy
RE: os&y gate valve
RE: os&y gate valve
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: os&y gate valve
RE: os&y gate valve
It surprised me as well when I moved to this area many years ago.
Travis Mack
MFP Design, LLC
www.mfpdesign.com
RE: os&y gate valve
zicoo000 , As per NFPA-13 8.16.1.1.1.1, each sprinkler system shall be provided with listed indicating valve in an accessible location, so located as to control all automatic sources of water supply. Further, not necessarily you need a tamper switch but you must satisfy one of the requirement with reagrds to supervision. go through NFAP-13 8.16.1.1.2.
PS. NFPA-13 2010 ed.
hope it helps,