Paul, As far as I know the only manufacturer of cpvc pellets (the "raw" material) is Noveon and that they will only sell their product to manufacturers that adhere their (Noveon's) manufacturing standards so essentially all cpvc is the same. There used to be a compatibility issue with a different base material manufactured by GEM before Tyco acquired Grinnell but the GEM product has not been available for years. I'm ccing a copy of this to Mark Hoyt (Noveon rep hereabouts) and a trusted friend, Mark, can you confirm my comments or give Paul the true skinny.
On 4/12/07, Paul Sincaglia <[EMAIL PROTECTED]> wrote:
Folks- Just a general question regarding CPVC. As a specifier, I normally make no distinctions regarding the manufacturer or brand name for piping or fittings. I simply state the material and relevant/applicable ASTM standards etc. After all, I want my clients to get the best pricing and open specs tend to do that. Obviously I make exceptions to that if I have a good reason (hydraulic performance, specific feature needed/wanted, similarity with an owners other systems etc.) Which brings me to my question...Is there any need to be more specific about CPVC products? I have always held the belief that CPVC is CPVC. Provided that supplier of pipe and/or fittings maintains a UL listing (or other listing) for their products for fire protection use, then the parts are essentially interchangeable. Am I wrong? I know that Blazemaster in their literature will generally steer you toward product mfg/suppliers that use their resin and assume the others do the same. But I have always seen this as being the equivalent of GM wanting me to use Genuine GM parts. Does anyone have any hard factual data to the contrary such as technical bulletins etc. Thanks Paul Sincaglia -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Brown Sent: Wednesday, April 04, 2007 1:43 PM To: [EMAIL PROTECTED] Subject: RE: CPVC & Seismic Bracing Maybe this will help To register click on this link https://www.krm.com/clse Topic: New Seismic Requirements with NFPA and IBC The topic of seismic design has become well known to many over the past five years. And like many, your learning experience has most likely come with a cost. The new editions of NFPA and IBC have arrived and offer a much more understandable process for those of us involved with fire protection systems to apply. This seminar has been organized with condensed step-by-step information that leads from the "when" through to the "how". Whether you have wrestled with this before or you have not yet experienced this process, this seminar will be valuable to both engineers of record, sprinkler system designers and authorities of jurisdiction. You do not want to miss this. Thank you, Chris Brown Fire Protection Designer, Poole Fire Protection Office: 913.829.8650 Direct: 913.747.2056 Cell: 913.208.3600 Fax: 913.829.8690 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, April 04, 2007 12:09 PM To: [EMAIL PROTECTED] Subject: Re: CPVC & Seismic Bracing Roland, That's exactly what I thought and tried to explain to the South Carolina State Fire Marshall's office. They insist the piping has to be 2 1/2" or larger. Matt |---------+----------------------------------------> | | Roland Huggins | | | <[EMAIL PROTECTED]>| | | Sent by: | | | [EMAIL PROTECTED]| | | prinkler.org | | | 04/04/2007 12:32 PM | | | Please respond to | | | sprinklerforum | |---------+----------------------------------------> >----------------------------------------------------------------------- --------------------------------------------| | | | | | To| | [EMAIL PROTECTED] | | cc| | | | Subject| | Re: CPVC & Seismic Bracing | | | | | | | | | | | | | >----------------------------------------------------------------------- --------------------------------------------| the pipe size on the branch line is when a sway brace is REQUIRED for the branch line. That criteria does NOT eliminate the requirement to sway brace the main by use of an offset brace thus size is immaterial (except for the brace being listed for the size of interest). If the brace wasn't listed for 1 inch (which it is), then as the designer, you'd need to size the starter piece to meet the needs of the brace. Roland On Apr 4, 2007, at 8:35 AM, [EMAIL PROTECTED] wrote: > I know this was discussed recently but I don't think this specific > point was brought up. Currently there is only one listed sway brace > for CPVC and it is a lateral brace. Now in order to provide > longitudinal bracing it was suggested to install a lateral brace on > the branch line within 24 in. of the main. However if you read > 9.3.5.3.5 it states "...for lines that are 2 1/2" and greater in > diameter". So what do you do for a 13R system with lets say 1 1/2" > mains and 1" branch lines? > > Matt Drewello > _______________________________________________ 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) ------------------------------------------------------------------------ ----------------------------- The information transmitted is intended only for the person or entity to which it is addressed and may contain proprietary, business-confidential and/or privileged material. If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission, dissemination, distribution, reproduction or any action taken in reliance upon this message is prohibited. If you received this in error, please contact the sender and delete the material from any computer. 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