"Just one more thing"
~Columbo~
Thanks Anthony for 'nice outside the box idea' comment.
"sometimes it takes a Jimi thing
just to keep me swinging"
~Dave Mathews~
With apologies to Tom Noble and Roland Huggins.
Brad
___
Sprinklerforum mailing
There's only two things I've found that your can't get for pressures over
175 psi: any backflow preventer and floor control valves from Tyco.
One of the jurisdictions here mandate backflow on the discharge side of the
pump
On Tue, Jul 17, 2018 at 3:30 PM Mark.Phelps wrote:
> Hi Dwayne,
> I'm
Hi Dwayne,
I'm curious what your pump rep would recommend if the impeller is damaged by a
stone or other foreign object.
Mark at Aero
602 820-7894
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Dewayne Martinez
Sent:
43psi static now, 78(low tower) to 84psi static future. Need 100psi @
1500gpm to make the system work now. 6x4x2 1/2" grid with 9psi cushion.
One option I can work on is to see if I can make it work with both water
supplies if I go with a smaller pump to keep the churn pressure under
175psi and
USD??? Ouch is right.
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Dewayne Martinez
Sent: 2018/07/17 2:35 PM
To: sprinklerforum@lists.firesprinkler.org
Cc: Dewayne Martinez
Subject: RE: PRV after pump discharge control
My pump rep confirmed that changing the impeller was a no-go. He also had
mentioned the VFD controller but was quoting a huge cost (108K...ouch).
Dewayne Martinez
Fire Protection Design Manager
TOTAL Mechanical
Building Integrity
W234 N2830 Paul Rd.
Pewaukee, WI 53072
3rd, really miss that guy. Learned a lot from him.
Rod at Rapid
-Original Message-
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On
Behalf Of Mark.Phelps
Sent: Monday, July 16, 2018 5:59 PM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: [EXTERNAL]
Before we get done praising George, beating each other up and being off
topic can I please, since so many of you are on this thread, once again
beseech you all to ALWAYS include the edition of NFPA 12345 or whatever you
are asking about. Have you ever been to one of those stores where paying is
an
Thanks Matt and Tom.
There will be an expert (i.e., not me) checking it out on site tomorrow and
I will see about sharing the diagnosis here soon.
Brad
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Tom Duross
Sent: Tuesday, July 17, 2018 8:52 AM
Have a vibration analysis performed. That will indicate balance, soft foot,
alignment, bearing, even natural frequency as the source. To bad we're so
far away from each other.
From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org]
On Behalf Of Matt Grise
Sent: Tuesday,
Is the drain piping well supported? It would be worth checking to see if the
motor is vibrating the pipe.
Matt
From: Sprinklerforum On Behalf
Of Brad Casterline
Sent: Tuesday, July 17, 2018 8:09 AM
To: sprinklerforum@lists.firesprinkler.org
Subject: RE: Excessive Vibration of Pressure Relief
A little more info:
I am being told the horizontal and vertical displacement due to vibration is
about 5/8" and that this is unacceptable.
The valve and discharge pipe size is per the chart, not calculated as
allowed.
The arrangement is Valve, flanged 90 looking down, spool piece to
So True
Best regards,
Charles Thurston thurst...@pyebarkerfire.com
MYRTLE BEACH FIRE SAFETY GROUP
A Division of Pye-Barker Fire Safety
1445 Cannon Road
Myrtle Beach, SC 29577
(843) 916 - 8787
(843) 839 - 3473 facsimile
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