As I recall, back in the days when IRI was still around, they had
something called a "maximum reliability system" where I think they
did some unusual stuff like this. What I really want to know is can
you bury them in the same trench?
At 05:12 PM 4/11/2007, you wrote:
Hello Ron,
> And don't get me started about the benefit of
> side outlet crosses at each sprinkler so the lines can go both
> directions.
I was taught EVERYBODY already did this for all systems...... A
gridded grid system. HAHA
Wednesday, April 11, 2007, 4:47:43 PM, you wrote:
> I like it! I would give them everything they are willing to pay for that
> doesn't degrade the system. Have you suggested a two story pump room
> with redundant pumps and you could use 11.2K heads instead of 5.6K. What
> about a tandem gear drive to open and close the butterfly valves in the
> risers simultaneously? And don't get me started about the benefit of
> side outlet crosses at each sprinkler so the lines can go both
> directions.
> Ron Fletcher
> Aero Automatic
> Phoenix, AZ
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Davis,
> Adam
> Sent: Wednesday, April 11, 2007 12:58 PM
> To: [email protected]
> Subject: Duplicate run-in
> I have a client that wants a duplicate run-in. What I mean is two
> parallel run-ins, each with a PIV going to serve the same sprinkler
> riser. I have never done this before and I know FM (insured) and NFPA
> do not advocate this kind of arrangement. Has this ever been done
> before and if so why? I am trying to respond that I don't think it is a
> worth while investment to "ensure" continuous water supply.
>
> Thank you,
>
> Adam Davis
> Mechanical Engineer
>
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--
Best regards,
Charles mailto:[EMAIL PROTECTED]
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Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, Connecticut
860-535-2080
www.fpdc.com
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