And it may be they need non-metallic the length of the wall thickness -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Brad Casterline Sent: Thursday, November 04, 2010 1:38 PM To: [email protected]; [email protected] Subject: RE: NON-METALLIC COUPLING
Good deal-- Ron F. idea of di-electric would probably work physically-- stop the flow of electrons-- but they are not 'non-metallic'. -----Original Message----- From: Travis Mack, SET [mailto:[email protected]] Sent: Thursday, November 04, 2010 12:32 PM To: [email protected] Subject: Re: NON-METALLIC COUPLING I was able to calc it down with a short piece of 3" CPVC pipe. Then just use the CPVC x Grooved adapters. Hopefully this will fly. It is all light hazard. On 11/4/2010 10:30 AM, Ron Greenman wrote: > 3" max on CPVC. > > On Thu, Nov 4, 2010 at 10:00 AM, Brad Casterline > <[email protected]> wrote: >> Do you mean the room is some kind of secure communications? I did one >> recently- No metallic PENETRATION of the walls- (like an antenna) - I guess >> a non metallic coupling would be like breaking the antenna- I went >> steel up >> to the wall, steel to cpvc, cpvc through the wall, then back to >> steel. Is 4" >> cpvc made? >> >> -----Original Message----- >> From: Travis Mack, SET [mailto:[email protected]] >> Sent: Thursday, November 04, 2010 11:07 AM >> To: [email protected] >> Subject: NON-METALLIC COUPLING >> >> I am working on a military project. I have to provide a non-metallic >> coupling on one side of wall. It is a penetration into a secured area. >> Any ideas on what to use as a non-metallic coupling for 4" sch 40 pipe? >> >> -- >> Please feel free to call if you have any questions or comments. >> >> Sincerely, >> >> Travis Mack, SET >> MFP Design, LLC >> 2508 E Lodgepole Drive >> Gilbert, AZ 85298 >> Office (480) 505-9271 >> Fax (866) 430-6107 >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email >> to:[email protected] >> (Put the word unsubscribe in the subject field) >> >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum >> >> For Technical Assistance, send an email to: [email protected] >> >> To Unsubscribe, send an email >> to:[email protected] >> (Put the word unsubscribe in the subject field) >> > > _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
