Lightwall threadable pipe has a CRR less than 1
*The codes are not the maximum that we are trying to achieve, * *rather they are the minimum that we have to achieve.* *Rahe Loftin, PE * *Regional Fire Protection Engineer* *General Services Administration* *Region 7 - TX, OK, NM, AR, LA* *Facilities Management 7PMC* *c - 817-371-3102* *o - 817-978-7299* On Fri, Aug 11, 2017 at 8:21 AM, Richard Carr <[email protected]> wrote: > I thought that as a manufacturing standard all steel pipe regardless of > schedule had to have a CRR of 1 or greater. > > > > Richard Carr, SET > > Branch Manager > > Cox Fire Protection, Inc > > 6555 Grace Lane. > > Jacksonville, Fl. 32205 > > [email protected] > > 904-781-8227 <(904)%20781-8227> > > > > *From:* Sprinklerforum [mailto:[email protected]. > org] *On Behalf Of *Mark.Phelps > *Sent:* Friday, August 11, 2017 9:00 AM > *To:* [email protected] > *Subject:* Re: [EXTERNAL] RE: 10" pipe with 1.0 CRR > > > > Isn't the CRR based on the actual remaining wall thickness at the root of > the first exposed thread outside of a fitting? So if you're not threading > it, it should theoretically have a CRR greater than 1.0. Also, I believe > the term Standard wall pipe in 10" diameter refers to schedule 30. > > Mark at Aero > > 602 820-7894 <(602)%20820-7894> > > > > Sent from my iPad > > > On Aug 11, 2017, at 5:49 AM, Mike Stossel <[email protected]> wrote: > > It has always been my understanding that the corrosion resistance ratio > benchmark of (1) is based on threaded schedule 40 steel, so I believe any > other pipe type would have a better or worse ratio, but not the same. > > > > Mike Stossel *SET* > > <image002.png> > > 36 Barren Road > > East Stroudsburg, PA 18302 > > Office: 973-670-2627 <(973)%20670-2627> > > [email protected] > > > > *From:* Sprinklerforum [mailto:[email protected]. > org <[email protected]>] *On Behalf Of *Dewayne > Martinez > *Sent:* Friday, August 11, 2017 8:39 AM > *To:* [email protected] > *Cc:* [email protected] > *Subject:* 10" pipe with 1.0 CRR > > > > Anyone know of 10in non-sch40 pipe that has a CRR of 1? Have a project > where the EOR is insisting on this. They also have a 100lb maximum point > load per hanger…..but that is a conversation for another day! > > Thanks, > > > > Dewayne Martinez > > Fire Protection Design Manager > > > > *TOTAL Mechanical* > > *Building** Integrity* > W234 N2830 Paul Rd. > Pewaukee, WI 53072 > > [email protected] > > Ph: 262-522-7110 <(262)%20522-7110> > > Cell: 414-406-5208 <(414)%20406-5208> > > *http://www.total-mechanical.com/ <http://www.total-mechanical.com/>* > > > > <image004.jpg> > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler. > org > >
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