But the bottom line is that if you have a backflow appliance with conforming control valves such as listed OS&Y or butterfly valves, you can utilize the backflow appliance for the check and control valve requirements for a system.
Steve L. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Scott A. Futrell Sent: Wednesday, March 28, 2007 2:59 PM To: [email protected] Subject: RE: Riser Schematic vs.InstallationPractices...(sorryifdoubledup...) Doesn't 8.15.1.1 (2002) address this? And the reason for this arrangement goes way back to if you need to service the check valve (in this case BFP) you can still have the f.d. in service to both systems. The control valve on the system side of the BFP would be the BFP isolation valve. Scott (763) 425-1001 Office (612) 759-5556 Cell -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roland Huggins Sent: Wednesday, March 28, 2007 5:12 PM To: [email protected] Subject: Re: Riser Schematic vs.InstallationPractices...(sorryifdoubledup...) if the BFP can act as the system check valve, why not use one of its valves as the required system valve? Roland On Mar 28, 2007, at 3:07 PM, Ron Greenman wrote: > Charles, > > Slippery slope. The only reason there is a valve on each side of the > BFP is to isolate it for testing. As such those valves are part of the > listing of the BFP and cannot be used in the configuration you > describe. > > On 3/28/07, Haugen, Charles <[EMAIL PROTECTED]> wrote: >> Just position it AFTER the tee split, correct? I can see that >> working >> as well. >> >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Eric >> Shelton >> Sent: Wednesday, March 28, 2007 1:57 PM >> To: [email protected] >> Subject: RE: Riser Schematic vs. >> InstallationPractices...(sorryifdoubledup...) >> >> So, does anyone see why the gate valve on the downstream side of a >> BFP >> can't be used as the system isolation valve? >> >> Eric Shelton >> Hankins and Anderson, Inc. >> >> _______________________________________________ >> 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:Sprinklerforum- >> [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:Sprinklerforum- > [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)
