Did a flow test this morning. Static 94, Residual 16, Flow 369 gpm.
The head of the water department was reading the gauge. No plans to
investigate (yet). Think they can design a dry system in a wood truss
attic on that?
Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington,
Is it alright to use standard grv cplgs on a manual dry standpipe for a
parking garage instead of the tri-seal type made by Tyco?
I have a fitter that is worried that water will be left in the std cplg
after testing that may freeze. What did they do in the old days
before Tri-seal cplgs?
Thanks,
We weren't as anal-compulsive about liability issues in the good old days.
And in the really good days, when no one would want to steal our work, this
stuff was threaded. Flanged-thread 90's, all the stuff you couldn't
expedite, let alone find, these days.
I believe you'll find standard couplings
Thanks,
I will check into this with the manufacture.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of George
Church
Sent: Monday, December 01, 2008 8:51 AM
To: sprinklerforum@firesprinkler.org
Subject: RE: manual dry standpipes - grv cplgs
We weren't as
How big is the main? What material? How old?
Sounds like either inadeqautely sized pipe, partially closed valve(s) or badly
deteriorated pipe.
--- On Mon, 12/1/08, Todd Williams [EMAIL PROTECTED] wrote:
From: Todd Williams [EMAIL PROTECTED]
Subject: A new winner?
To:
The problem is a lack of practical field experience and an understanding what
they're looking at. Most of those responsible for the engineering and design
just read the report and have no idea of what the numbers really represent.
I've seen it happen both ways. Someone thinks they need a
http://lists.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)
__ NOD32 3653 (20081201) Information __
This message
Could just be an old main. Did a project in Florida a few years ago with the
following:
60psi Static
11psi Residual
380gpm Flowing
Needless to say, not much to work with. When we cut into the existing 6
watermain to cut in a new tee, you could not fit a standard size orange into
the pipe.
]
To Unsubscribe, send an email to:[EMAIL PROTECTED]
(Put the word unsubscribe in the subject field)
__ NOD32 3653 (20081201) Information __
This message was checked by NOD32 antivirus system.
http://www.eset.com
___
Sprinklerforum
mailing list
http://lists.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)
__ NOD32 3653 (20081201) Information
Just to play devils advocate where does the code say you need to consider
anything else but the hypothetical .3/2000 for 600 gpm? The code also says
you have to include the hose demands.
And if you do this exercise for less than the total heads what does the area
look like? Do you start with
Or about an area in St. Paul with similar residuals and flows but only 30
psi static with a significant university. Just really old 4 and 6 mains.
Or the 7000' dead end that goes from 125 to low 30's and 400 gpm serving
the waste water treatment plant. I tested every hydrant one day and it all
Are you calling your insurance company before, or after, your attorney?
(trick question- the insurance company hires the lawyer, so you could be
placed in the position of Chris the building owner suing Chris the sprinkler
installer in your own building, if your protected building burnt down. If
/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)
__ NOD32 3653 (20081201) Information __
This message was checked by NOD32 antivirus system.
http
field)
__ Information from ESET NOD32 Antivirus, version of virus
signature
database 3654 (20081201) __
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__ Information from ESET NOD32 Antivirus, version of virus
signature
database 3654 (20081201
15 matches
Mail list logo
