Bobby, Thanks for holding this dead horse down while I beat it some more.
I don't necessarily agree with your statement that hanger = restraint. 9.3.6.3 says nothing about any hanger - only that the end sprinkler on a "line" shall be restrained and there's nothing in 9.3.6 that links a restraint requirement with a corresponding hanger requirement. In my previous message I stated that I've assumed "line" in 9.3.6.3 means branch line and if so this additional word (branch) should be inserted. Otherwise the term line would have to be defined independently of the other terms in 3.5. Hopefully the rejected proposal referenced by Roland will allow 9.3.6 to be clarified and perhaps an Appendix note crafted to state the intent. Bill Brooks William N. Brooks, P.E. Brooks Fire Protection Engineering Inc. 372 Wilett Drive Severna Park, MD 21146 410-544-3620 Phone 410-544-3032 FAX 412-400-6528 Cell -------- Original Message -------- Subject: RE: Restraint of Branch Lines From: "Bobby Gillett" <[EMAIL PROTECTED]> Date: Thu, June 19, 2008 12:15 pm To: <[email protected]> Roland, But it is not an arm-over if it is a horizontal pipe (not a return bend, drop or sprig) fed from a cross main...it is, by definition, a branch line. You must restrain it if it is required to have a hanger. Bobby Gillett Project Manager [EMAIL PROTECTED] (731)-424-0130 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roland Huggins Sent: Thursday, June 19, 2008 11:01 AM To: [email protected] Subject: Re: Restraint of Branch Lines so would you restrain one and not the other? I still think the restraint does not apply to an arm-over regardless if it is tied directly to a cross main or a branch line. Short is short (or should I say vertically challenged?). Having said that, I have given up on trying to say what any large group will ultimately decide (that being the technical committee) until it's done. I will look to see if there is a proposal that we can attach a comment that will clarify this issue come the Sept ROC meeting. Roland On Jun 19, 2008, at 8:41 AM, Steven P. Biship, P.E. wrote: >> So if you have a single sprinkler fed from a horizontal pipe from a >> cross >> main this would be a branch line. If you have a single sprinkler >> fed from >> a >> horizontal pipe from a branch line this would be an arm-over. >> >> >> Bobby Gillett _______________________________________________ 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)
