Might remove the ALV if you've got elec alarms anyway, and a new riser check might have less friction loss.
Also, calcs that can use a reduced MRA based on lower ceiling height might help if you change to QR heads. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Wednesday, November 04, 2009 12:14 PM To: [email protected] Subject: Re: 1948 Retro Thanks. We are chaniging the 3/4" to 1", flushing the entire system, adding badly needed hangers and probably chaning the alarm and control valve. -------------- Original message from Todd Williams <[email protected]>: -------------- > Contact Fire Spec in Bridgewater, MA. They would have what you are > looking for, if anybody does. I would recommend pulling some of the > 3/4 pipe to look for scale. > > > At 11:57 AM 11/4/2009, you wrote: > > We are bringing a system up to code that was installed in the > > early 1940's. It is a pipe schedule system with 3/4" pipe feeding > > the head at the end of each branchline. It is also 51' to the 3rd > > floor remote branchline. It is currently 1 lb under the supply > > curve using a generic alarm and gate valve for the calculations. > > Does any know the friction loss for a 1948 Hodgman Alarm > > Valve? What other problems / concerns should I be aware of? > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >For Technical Assistance, send an email to: [email protected] > > > >To Unsubscribe, send an email to:[email protected] > >(Put the word unsubscribe in the subject field) > > Todd G. Williams, PE > Fire Protection Design/Consulting > Stonington, Connecticut > www.fpdc.com > 860.535.2080 > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
