...whole... Sent from my iPhone
> On Aug 30, 2017, at 13:23, rongreenman . <[email protected]> wrote: > > Flow switches at the booth are often there to shut down a solenoid valve > supplying the paint, or turn off high temp devices within the booth, turn off > fans, close dampers, etc. rather than just initiate alarms > >> On Wed, Aug 30, 2017 at 1:15 PM, Prahl, Craig/GVL <[email protected]> >> wrote: >> From past design discussions, this section assumes the area in which the >> booths are installed is protected by an automatic sprinkler system and that >> sublevel sprinklers are provided within the spray booths. The sublevel >> sprinkler array in the booth(s) being provided with a control valve of the >> indicating type to help facilitate repairs and replacement of sprinklers >> within the booths often due to deposits accumulating on the sprinklers. By >> providing a separate control valve accessible from floor level, the system >> can be closed off for repairs without impairing the overhead sprinkler >> system. >> >> I haven't found any requirement to have a separate flow switch since the >> booths are typically fed from the same riser as the overhead system. Now >> there may be unique installations where it is desirable to have a second >> flow switch local to the booth(s) to indicate flow within the booth(s). >> This would only be beneficial where you can differentiate between specific >> alarm devices. >> >> >> Craig L. Prahl >> Fire Protection Group Lead/SME >> CH2M >> 200 Verdae Blvd. >> Greenville, SC 29607 >> Direct - 864.920.7540 >> Fax - 864.920.7129 >> CH2MHILL Extension 77540 >> [email protected] >> >> >> -----Original Message----- >> From: Sprinklerforum [mailto:[email protected]] >> On Behalf Of Jeremy Blocker >> Sent: Wednesday, August 30, 2017 3:49 PM >> To: [email protected] >> Subject: Re: Paint Spray Operations [EXTERNAL] >> >> In Denver this came up and the FPE stated 1 valve can operate multiple >> booths but the flow switch depended on the direction of flow. If the piping >> allowed flow in opposite directions we would have to use 1 flow for each >> direction. >> >> Jeremy Blocker >> Sent from my iPhone 6 >> >> > On Aug 30, 2017, at 1:10 PM, JD Gamble <[email protected]> wrote: >> > >> > Based on NFPA 13 22.4.1.5 (16 ed) (requiring a control valve for the >> > paint spray application area), would this suggest a separate control >> > valve for each type of booth within the spray area or is it intending >> > to suggest a separate control valve for the area only? >> > >> > Is each booth its own system? >> > Can you use a single control valve with multiple flow switches for >> > shunt trips? >> > >> > Thoughts? >> > >> > >> > >> > Life Safety Solutions of Sheridan >> > >> > JD Gamble >> > [email protected] >> > (307) 763-3361 >> > >> > >> > >> > _______________________________________________ >> > Sprinklerforum mailing list >> > [email protected] >> > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkl >> > er.org >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > > > > -- > Ron Greenman > > [email protected] > > 253.576.9700 > > The Universe is monstrously indifferent to the presence of man. -Werner > Herzog, screenwriter, film director, author, actor and opera director (1942-) > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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