I am not familiar with N2. Where can I get more info? I spoke with and Allied rep who confirmed that ABF did not render a pipe 'corrosion resistant'.
The main issue for this particular application is that a dry attic system is over-discharging with k5.6 heads, and the water supply is not great. K4.2 heads cut about 100gpm off of the total demand. For this instance, it was more cost effective to use larger diameter black pipe than going to galvanized. I was just curious if there was anything out there that I had not heard of. Matt Grisé PE*, LEED AP Sales Engineer Alliance Fire Protection 130 w 9th Ave. North Kansas City, MO 64116 *Licensed in KS & MO 913.888.0647 ph 913.888.0618 f 913.927.0222 cell www. AFPsprink.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of George Church Sent: Monday, October 31, 2011 3:47 PM To: sprinklerforum@firesprinkler.org Subject: RE: small orifice head on dry pipe There are corrosion types that ABF won't do a thing for, so it's out. Black pipe with N2 is prolly a better one to try for, but I think you're about a decade earlier than you'll see it in code. This side of the business is in its infancy. Personally, I think the concept has great merit (yes, I've talked to JD at length on the topic) but if you want something that will pass muster quickly, It's galvanized. To cure it from looking to expensive, price SS304 or better, 316 and from that perspective, it looks cheap and EZ to install. George L. Church, Jr., CET Rowe Sprinkler Systems, Inc. PO Box 407, Middleburg, PA 17842 877-324-ROWE 570-837-6335 fax g...@rowesprinkler.com -----Original Message----- From: sprinklerforum-boun...@firesprinkler.org [mailto:sprinklerforum-boun...@firesprinkler.org] On Behalf Of Justin Reid Sent: Monday, October 31, 2011 3:17 PM To: sprinklerforum@firesprinkler.org Subject: Re: small orifice head on dry pipe Whoops, you are right. I should look in the code before shooting from the hip. "Corrosion Resistant" (3.8.1.2) versus "Corrosion Retardant"(3.8.1.3). With the ABF coating obviously being the latter. So... technically galvanized pipe falls under the definition of "Corrosion Retardant"???... but it is included in the options of the quoted code section so it applies. So it looks like the cost effective options are limited. Interesting topic though. I might have interpreted it the same...that a Nitrogen filled system would place it in the corrosion resistant category. Justin Reid On Mon, Oct 31, 2011 at 3:03 PM, Roland Huggins <rhugg...@firesprinkler.org>wrote: > I think applying ABF pipe to that allowance is a step too far. ABF is > a microbial coating to address MIC. I haven't heard anyone > identifying it as a basic corrosion inhibitor. Also it has a finite life > span. > > Roland > > > On Oct 31, 2011, at 8:49 AM, Justin Reid wrote: > > Matt, >> >> I believe a product such as Allied's ABF coated pipe would meet the >> intent as corrosion resistant therefore being an alternative to >> galvanized. Since galvanized pipe is starting to fall out of favor, >> this will probably be used more often to satisfy that particular code >> section. >> >> >> Justin Reid >> > > ______________________________**_________________ > Sprinklerforum mailing list > Sprinklerforum@firesprinkler.**org <Sprinklerforum@firesprinkler.org> > http://fireball.firesprinkler.**org/mailman/listinfo/**sprinklerforum< > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://fireball.firesprinkler.org/mailman/private/sprinklerforum/attachments/20111031/920c25ed/attachment.html> _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum _______________________________________________ Sprinklerforum mailing list Sprinklerforum@firesprinkler.org http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
