Stethoscope? More likely an electronic sensor on the pipe transmitting to a computer in the roach coach.
At 08:55 AM 3/6/2010, you wrote: >It would most likely be required at or very near the shielding.Much >like a "wave filter" for an MRI installation.I would make sure all >interested parties are in agreement with the final location.Good Luck. > > >---- "Brown wrote: > > >From what I gather from everyone's comments (correct me if I'm wrong) > > ... you install the flanges just inside the secure area and the > > insulating gaskets and bolt sleeves to eliminate the ability for someone > > to use a stethoscope to listen in on a conversation. > > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of > > [email protected] > > Sent: Saturday, March 06, 2010 8:27 AM > > To: [email protected] > > Subject: Re: "SCIF" Wall Penetration > > > > Mike, go to www.apsonline.com/gasket.html.I think this is what you are > > looking for. > > > > > > ---- [email protected] wrote: > > > > > > All: > > > > > > I've had opportunity to use install these in the pulp industry in > > another life, and have seen them in my current place. I assume Steve is > > describing a set up like this: > > > > > > Flange by Flange ftg. > > > > > > Drop bolts in first to ensure its ready. > > > > > > Clean flange, and tools, then hands. We used acetone from the lab to > > clean our wrenches. Now I know it does burn. Not a good idea. Then > > rubber (probably some kind of plastic) gloves. > > > > > > Bolts, flange, and steel washers are normal. If bolts are barely long > > enough with normal washers, go up one length. > > > > > > Special non-conductive gaskets, and washers are used to provide the > > isolation. But the real parts that take a little messing with are the > > sleeves that go around the bolts. The need to be just shorter than the > > distance between the faces of the flanges after makeup. We always had > > another fitter, and the operator check them afterwords. This is not a > > place to try to be productive. 100% was the only acceptable level. The > > operator had to check something off some form or report. The goal was to > > prevent the adjacent tank from exploding. > > > > > > Then make sure you get something on the wrenches so the don't rust. > > > > > > > > > Yours, > > > > > > Bruce V. > > > > > > > > > > > > ----- Original Message ----- > > > From: "steve" <[email protected]> > > > To: "AFSA" <[email protected]> > > > Sent: Friday, March 5, 2010 8:29:23 AM GMT -08:00 US/Canada Pacific > > > Subject: Re: "SCIF" Wall Penetration > > > > > > Is this at the service entry? You can use a dielectric flange kit at > > that point or, as Geo said a dielectric union. > > > > > > SL > > > > > > > > > ------Original Message------ > > > From: Mike Brown > > > Sender: [email protected] > > > To: AFSA > > > ReplyTo: AFSA > > > Subject: "SCIF" Wall Penetration > > > Sent: Mar 5, 2010 4:15 AM > > > > > > Question I am working on a project where the FPE is asking for a > > > "electrically isolated joint on the sprinkler feed main just inside > > the > > > wall"? Has anyone had to deal with this before...if so what did you > > use? 4" > > > Sch. 40 Main. > > > Thanks, > > > Mike Brown > > > _______________________________________________ > > > 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) > > > > > > > > > Sent from my Verizon Wireless BlackBerry > > > _______________________________________________ > > > 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) Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut 860-535-2080 www.fpdc.com _______________________________________________ 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)
