Another option is to not run the pump at 150%
Roland
On May 26, 2009, at 5:59 PM, Todd Williams wrote:
The pump is a 250 gpm; a minimum of 4 suction is required (OK,
3-1/2). I did a project with the same size pump 2 years ago, taking
suction from 2 tanks with a 4 suction line. When we tested
I have a situation where a 6 main from a tank is going to need to be
connected to a 2-1/2 suction flange on a pump. The largest eccentric
reducer I can get is 4 x 2-1/2. Can I back-to-back reducers without
causing problems? Could I used a 6x4 90 on the suction line and then
elbow back to the
Message-
From: Todd Williams [mailto:t...@fpdc.com]
Sent: Tuesday, May 26, 2009 10:55 AM
To: sprinklerforum@firesprinkler.org
Subject: reducing suction line
I have a situation where a 6 main from a tank is going to need to be
connected to a 2-1/2 suction flange on a pump. The largest eccentric
Johnston
Sent: Tuesday, May 26, 2009 2:17 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: reducing suction line
Todd,
Can you use a Victaulic #51 6 x 2 1/2 groove eccentric and connect to
flanges using vic flanges?
Jim Johnston, P.E.
Fire Protection Engineer
Inland Fire Protection, Inc
1100
...@firesprinkler.org] On Behalf Of Todd Williams
Sent: Tuesday, May 26, 2009 3:36 PM
To: sprinklerforum@firesprinkler.org
Subject: RE: reducing suction line
Anybody ever have a problem going with this dramatic a reduction?
At 02:17 PM 5/26/2009, you wrote:
Todd,
Can you use a Victaulic #51 6 x 2
That's the type of thing I am looking for. My original thought before
I posted this was a 6x4 90, the 10 diameters and a 4x2-1/.2 eccentric
reducer. Space may be an issue and when they run the underground
mains, I'll have to figure out the exact arrangement. This is a
church addition and the
Todd,
What did you do to deserve such Karma? This guy will probably save
them into a black money hole. Question: If they haven't run mains why
do you get a 6 pipe when you only need 2 1/2? Why have they hired
you you if they're listening to they're amateur? The problem of the
empty spot is real,
The pump is a 250 gpm; a minimum of 4 suction is required (OK,
3-1/2). I did a project with the same size pump 2 years ago, taking
suction from 2 tanks with a 4 suction line. When we tested the pump
at 150%, we drew the suction down to -1 psi. There is going to be
more suction pipe on this
