The penetration is actually through a wall that goes slab to deck around the "SCIF" area. We are allowed one penetration...so I have a 4" Sch. 40 Main feeding this portion of the building.
On Fri, Mar 5, 2010 at 11:46 AM, Thom McMahon <[email protected]>wrote: > A good choice, but check the underground material spec. first. If they are > using C900, there is really no need to have a dielectric flg. or union. > > Also determine the purpose of the isolation. If it's Dept. of Defense, or > one of the many alphabet soup names, the issue may be more than simple > isolation, and require transmission frequency alteration. > Water is a very good conductor of sound, ask any submariner. To protect > verbal communication they may be wanting to induce "Noise" to prevent > covert > listening. > > Thom McMahon, SET > Firetech, Inc. > 2560 Copper Ridge Dr > P.O. Box 882136 > Steamboat Springs, CO 80488 > Tel: 970-879-7952 > Fax: 970-879-7926 > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of John > Denhardt > Sent: Friday, March 05, 2010 7:24 AM > To: [email protected] > Subject: RE: "SCIF" Wall Penetration > > We typically use a Watts series 3100 dielectric union. > > John > > John August Denhardt, P.E. > Strickland Fire Protection Incorporated > 5113 Berwyn Road > College Park, Maryland 20740 > Office Telephone Number: 301-474-1136 > Mobile Telephone Number: 301-343-1457 > FIRE SPRINKLERS SAVE LIVES > > > _______________________________________________ > 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]<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)
