- C Bilbo
Sent: Wednesday, October 26, 2011 6:18 PM
To: FORUM
Subject: RE: Expansion chamber for anti-freeze
Since a couple of folks replied to me off forum, I wanna reach out to Joel and
say sorry for my lame attempt at humor.
Those really are the steps, just in a way I might not teach them e
I've seen 400 psi in attics systems before...
On Wed, Oct 26, 2011 at 3:13 PM, Joel Chaim
wrote:
> Can anybody explain why I would need an expansion chamber for an
> anti-freeze
> system when there is only 60 psi in the street?
>
>
>
> NFPA does not make a difference for low street pressure.
>
>
om: prodesigngr...@msn.com
> To: sprinklerforum@firesprinkler.org
> Subject: RE: Expansion chamber for anti-freeze
> Date: Wed, 26 Oct 2011 15:26:28 -0500
>
>
> Dear Joel,
>
> First you have to determine what kind of antifreeze you are using and then
> figure out how much it
ce...@sprinkleracademy.com>
OUR STUDENTS SAVE LIVES!!
> From: activefireprotect...@gmail.com
> To: sprinklerforum@firesprinkler.org
> Subject: RE: Expansion chamber for anti-freeze
> Date: Wed, 26 Oct 2011 15:32:33 -0400
>
> It is
-boun...@firesprinkler.org
[mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of John O'Connor
Sent: Wednesday, October 26, 2011 3:26 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: Expansion chamber for anti-freeze
In a water or antifreeze filled wet system (in service long enou
In a water or antifreeze filled wet system (in service long enough to
completely absorb all air) and the common practice of using backflow
preventers, a system subjected to high temperature swings will could
experience high pressures that cannot be dissipated thru a 1/32" hole in a
clapper of the c
