Well maybe that explains why a plan we were just looking at had a wall hydrant shown.
>>> "Ron Greenman" <[EMAIL PROTECTED]> 05/30/08 8:56 AM >>> That's funny. I'm pretty taciturn and your word elicited an out loud chuckle. On Fri, May 30, 2008 at 8:47 AM, Fletcher, Ron <[EMAIL PROTECTED]> wrote: > six > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gregg Key > Sent: Friday, May 30, 2008 8:37 AM > To: [email protected] > Subject: Re: 200 psi test for components rated 175 > > Speaking of such test, How many systems are installed with a means to > test the backflow at the required forward flow rate? like a wall > hydrant? > > Thom McMahon wrote: >> Don't forget the derided full forward flow test! >> >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Steve >> Leyton >> Sent: Friday, May 30, 2008 8:42 AM >> To: [email protected] >> Subject: RE: Re[2]: 200 psi test for components rated 175 >> >> So it's contractual, not philosophical. Presumably, the installing >> contractor tests it ... >> >> I don't think we're talking about testing the backflow appliances >> itself for functionality - that's best left for the "certified > backflow >> technician." If you pump up an UG including the BFP, the relief > valve >> will only operate when there's a differential between the clappers. >> So an RPZ or RPDA usually weeps a bit when you pump it up, but once >> the line is equalized you can run a conventional hydro. And if you >> just want to test against it, you can pump up through the FDC or main >> drain or the supply-side tap on the riser check, if so equipped. >> >> Steve Leyton >> Protection Design & Consulting >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Coastal >> Sent: Thursday, May 29, 2008 7:10 PM >> To: Steve Leyton >> Subject: Re[2]: 200 psi test for components rated 175 >> >> Hello Steve, >> >> I start 1' AFF with my work. I sub out any underground installation >> work I get (which I try to avoid) and it is up to them to test it. >> Only question I have is how do you get an RPZ to hold the back >> pressure to hydro to it? Pump the system up through the #1 test cock? >> >> -- >> Best regards, >> Charles Thurston >> Coastal mailto:[EMAIL PROTECTED] >> >> Thursday, May 29, 2008, 6:55:37 PM, you wrote: >> >>> I'll bite - why not? If the Fire Department pumps into the FDC, >> isn't >>> it likely to back pressure the BFP to at least 150? And if so, >> wouldn't >>> it be prudent to test the assembly? >> >>> Steve Leyton >>> Protection Design & Consulting >> >> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] On Behalf Of >>> Charles Thurston >>> Sent: Thursday, May 29, 2008 3:30 PM >>> To: IPA >>> Subject: Re: 200 psi test for components rated 175 >> >>> Hello IPA, >> >>> I for one have never put 200 on the backflow, I will not either. >> >>> Thursday, May 29, 2008, 6:03:25 PM, you wrote: >> >>>> I've got this question posed to me: >> >>>> Backflow preventor is rated at 175 (as are most of the fire >>>> sprinkler >>>> components) yet we are required to do a 200 psi test. Is the keyword >>> here >>>> "working pressure" of 175 psi or am I missing something? >> >>>> thx, >>>> _______________________________________________ >>>> Sprinklerforum mailing list >>>> [email protected] >>>> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> >>>> To Unsubscribe, send an email >>> to:[EMAIL PROTECTED] >>>> (Put the word unsubscribe in the subject field) >> >> >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> To Unsubscribe, send an email >> to:[EMAIL PROTECTED] >> (Put the word unsubscribe in the subject field) >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> To Unsubscribe, send an email >> to:[EMAIL PROTECTED] >> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> To Unsubscribe, send an email >> to:[EMAIL PROTECTED] >> (Put the word unsubscribe in the subject field) >> >> > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > > To Unsubscribe, send an email to:[EMAIL PROTECTED] > (Put the word unsubscribe in the subject field) > -- Ron Greenman at home.... _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
