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#122196 10/03/05 09:35 AM
Joined: Dec 2000
Posts: 4,294
Member
Well, not really, but it looks like the fittings were supplied by the plumber.

When are these required?


[Linked Image]

#122197 10/03/05 11:30 AM
Joined: Feb 2004
Posts: 1,438
Member
Looks like someone's creation to buffer vibration from the conduit run or possibly for expansion/contraction....

#122198 10/03/05 11:39 AM
Joined: Sep 2004
Posts: 167
S
Member
I've seen the rubber ones used in bridges. Normally for seismic joints FMC or LTFMC is used.

Maybe using these is cheaper than LTFMC for machinery vibration.


Larry LeVoir
Inspector
City of Irvine, CA
#122199 10/04/05 01:45 PM
Joined: May 2005
Posts: 984
Likes: 1
G
Member
Those are called "deflection couplings". They're used when the conduit on one side may end up misaligned with the other due to movement or vibration. You can find them in the Appleton catalog.


Ghost307
#122200 10/05/05 01:31 PM
Joined: Aug 2003
Posts: 1,374
R
Moderator
How does the conduit stay bonded with these?


Ryan Jackson,
Salt Lake City
#122201 10/05/05 07:15 PM
Joined: Mar 2001
Posts: 2,056
R
Member
Probably bonding is accomplished with a flexible braid or strap.

#122202 10/05/05 08:50 PM
Joined: Aug 2001
Posts: 599
N
Member

#122203 10/07/05 12:37 AM
Joined: Jun 2004
Posts: 1,273
T
Member
They look like the technology developed by the USAF for ICBM and command bunkers for nuclear war.

In such systems, everything -- I mean everything -- is on flexi-mounts so as to work after a Richter 15 earthquake.

Specified normally in government contracts only.


Tesla
#122204 10/18/05 08:07 AM
Joined: Dec 2000
Posts: 4,294
Member
Nick,
I'm not surprised that you recognize these! [Linked Image]

This is insisde the parking structure at Treasure Island, Las Vegas......One of your little projects.


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