We discussed that section and it states "around or away from objects during installation". This is not the case; the deflection is cause by the ductwork pushing down on the plastic pipe. The permissible bending deflection does not state that the deflection can be cause by something pushing on the pipe. Am I miss interpreting "around and away" to mean it cannot forced by contact?
Thanks, Gregg Fontes Cen-Cal Fire Systems, Inc. (209)334-9119 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Thom McMahon Sent: Thursday, March 13, 2008 10:23 AM To: [email protected] Subject: Re: Plastic Pipe bowing Blazemaster (TYCO) installation instructions & tech handbook Jan 2005 lists Permissible bending deflections in table "J" based upon size of pipe and length. Example: 1" cpvc is allowed to bend or deflect 6.3" in 5'-0" (5'-0" also just happens to be the max hanger spacing for 1". Sounds like you have a compound deflection (bow) so 1/2 the allowed would seem appropriate. Thom McMahon Firetech, Inc. 2560 Copper Ridge Dr Steamboat Springs, CO 80488-2136 Tel: 970-879-7952 Fax: 970-879-7926 ----- Original Message ----- From: "Gregg Fontes" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, March 13, 2008 11:04 AM Subject: Plastic Pipe bowing >I was asked by a fire inspector if it is allowed to have mechanical >ductwork > bow plastic pipe? The ductwork is not support by the plastic pipe. It is > in a tight spot where the ductwork is installed above the plastic pipe and > due to the limited space, it is bowing the pipe. What the picture shows > is > it looks like there is about 16" of space between the pipe and deck and > the > 18" diameter flex is above the pipe. This is bowing the plastic pipe. > The > inspector is saying that they can't find anything in code that would not > allow this. They don't like it, but can't find anything to hang the hat > on. > > > Thanks, > Gregg Fontes > Cen-Cal Fire Systems, Inc. > (209)334-9119 > > > _______________________________________________ > 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)
