That horse is in the barn and sleeping.  Even has a sign on his stall saying Do 
Not Disturb.


Roland Huggins, PE - VP Engineering
American Fire Sprinkler Assn.       ---      Fire Sprinklers Saves Lives
Dallas, TX
http://www.firesprinkler.org <http://www.firesprinkler.org/>





> On Mar 18, 2015, at 6:52 AM, Brad Casterline <[email protected]> wrote:
> 
> Not to seem impatient or demanding but is this question still being worked
> on?
> 
> Brad
> 
> -----Original Message-----
> From: Sprinklerforum [mailto:[email protected] 
> <mailto:[email protected]>]
> On Behalf Of Vince Sabolik
> Sent: Thursday, March 12, 2015 10:10 AM
> To: [email protected] 
> <mailto:[email protected]>
> Subject: Re: Pump you up?
> 
> No beef. I'm presuming maximum pressure also refers to the water supply.
> 
> In that context, a temporary boost (as in a pump churn) would not
> constitute working water pressure while discharge of one head that 
> turned the
> pump on would, no?
> 
> 
> 
>                                                       Vince
> 
> 
> 
> On 3/12/2015 10:04 AM, Roland Huggins wrote:
>> Exactly what it says.  It might help for you to look at where it is used
> in the standard.  It's covers three items: the required pressure rating of
> components, the required hydrostatic test, and the sizing of the expansion
> chamber.  All of these items are about maximum pressure.  So when the
> definition says the maximum pressure whether when flowing or non-flowing
> where's the beef?
>> 
>> Roland Huggins, PE - VP Engineering
>> American Fire Sprinkler Assn.       ---      Fire Sprinklers Saves Lives
>> Dallas, TX
>> http://www.firesprinkler.org <http://www.firesprinkler.org/> 
>> <http://www.firesprinkler.org/ <http://www.firesprinkler.org/>>
>> 
>> 
>> 
>> 
>> 
>>> On Mar 11, 2015, at 11:42 AM, Vince Sabolik <[email protected]> wrote:
>>> 
>>> On 3/11/2015 12:03 PM, Roland Huggins wrote:
>>>> The needed answer depends on what is the underlying or driving question
> in why you ask
>>> All right, define "working pressure".
>>> 
>>> Would that be the pressure available at no flow; pressure at design flow;
>>> or the pressure present at one head flowing?
>>> 
>>> In the NFPA definitions, it says "the maximum anticipated static
> (nonflowing)
>>> or flowing pressure"
>>> 
>>> Either or?
>>> 
>>> Who (or what) is supposed to determine?
>>> 
>>> 
>>> 
>>> 
>>> West Tech Fire Protection, Inc.
>>> 11351 Pearl Road   / Strongsville, Ohio   44136
>>> Phone 440 238-4800    Fax 440 238-4876   Cell  440 724-7601
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>>> 
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>> 
>> 
> 
> 
> -- 
> 
> West Tech Fire Protection, Inc.
> 11351 Pearl Road   / Strongsville, Ohio   44136
> Phone 440 238-4800    Fax 440 238-4876   Cell  440 724-7601
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> Sprinklerforum mailing list
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