That is my exact thought on it. Now to explain that to Transportation &
Works on Thursday....
On 4/24/2018 4:06 PM, Prahl, Craig/GVL wrote:
If this is just a vertical in-line drawing from a potable water
source, there is no need for a strainer.It doesn’t matter if it’s an
in-line or HSC, what matters is the water source.You shouldn’t have
anything in a potable source that could clog up a fire pump.At least
we hope not.J
Craig Prahl |Jacobs| Group Lead – Fire Protection | 864.676.5252 |
[email protected]|www.jacobs.com <http://www.jacobs.com/>
*From:*Sprinklerforum
[mailto:[email protected]] *On Behalf Of
*P & P Sprinklers Ltd
*Sent:* Tuesday, April 24, 2018 2:33 PM
*To:* [email protected]
*Subject:* Re: [EXTERNAL] RE: Strainer ahead of fire pump
We are protecting a new school that is running off city water. The
town is supplied water from a pond via their own pumps. I would assume
the water is already treated. The thing is, this install has been
completed since last year and only now are they getting around to
commissioning and are looking for a strainer they say was required.
There was no mention of a strainer on the drawings, although there was
a line in the spec with reference to one.
On 4/24/2018 3:53 PM, Prahl, Craig/GVL wrote:
If you’re drawing from any open pond or other raw water source you
need to provide a strainer.
Craig Prahl | Jacobs | Group Lead – Fire Protection | 864.676.5252
| [email protected] <mailto:[email protected]> |
www.jacobs.com <http://www.jacobs.com/>
*From:* Sprinklerforum
[mailto:[email protected]] *On Behalf
Of *Tom Duross
*Sent:* Tuesday, April 24, 2018 2:11 PM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* [EXTERNAL] RE: Strainer ahead of fire pump
Actually I think if the pump has no cleanout provisions, a
strainer is required on vertical inline pumps.
*From:*Sprinklerforum
[mailto:[email protected]] *On Behalf
Of *P & P Sprinklers Ltd
*Sent:* Tuesday, April 24, 2018 2:08 PM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* Re: Strainer ahead of fire pump
Would I be right in assuming that the wording "where necessary"
implies that it should be avoided unless necessary?
On 4/24/2018 3:27 PM, MFP Design, LLC wrote:
*It’s not required but is permitted.*
**
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Travis Mack, SET
MFP Design, LLC
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480-505-9271
fax: 866-430-6107
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*From:*Sprinklerforum
<[email protected]>
<mailto:[email protected]> *On
Behalf Of *P & P Sprinklers Ltd
*Sent:* Tuesday, April 24, 2018 10:57 AM
*To:* [email protected]
<mailto:[email protected]>
*Subject:* Strainer ahead of fire pump
Is a strainer required before a Vertical in-line pump? All I
can find regarding strainers in NFPA 20, 2010 ed. is the
following:
/4.14.9.2 The following devices shall be permitted in the
suction piping where the following requirements are met:
(4) Suction strainers shall be permitted to be installed
in the
suction piping where required by other sections of this
standard./
/6.3.2 Where necessary, the following fittings shall be provided:/
/(5) Pipeline strainer/
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