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#122196 - 10/03/05 06:35 AM Hybrid Installation
electure Offline

Member

Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
Well, not really, but it looks like the fittings were supplied by the plumber.

When are these required?



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#122197 - 10/03/05 08:30 AM Re: Hybrid Installation
Lostazhell Offline
Member

Registered: 02/21/04
Posts: 1248
Loc: Bakersfield, CA (Originally Or...
Looks like someone's creation to buffer vibration from the conduit run or possibly for expansion/contraction....

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#122198 - 10/03/05 08:39 AM Re: Hybrid Installation
sandsnow Offline
Member

Registered: 09/21/04
Posts: 163
Loc: Irvine, CA, USA
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

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#122199 - 10/04/05 10:45 AM Re: Hybrid Installation
ghost307 Offline
Member

Registered: 05/09/05
Posts: 884
Loc: Chicago Illinois USA
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

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#122200 - 10/05/05 10:31 AM Re: Hybrid Installation
Ryan_J Offline
Moderator

Registered: 08/19/03
Posts: 1355
Loc: West Jordan, Utah, USA
How does the conduit stay bonded with these?
_________________________
Ryan Jackson,
Salt Lake City

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#122201 - 10/05/05 04:15 PM Re: Hybrid Installation
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Probably bonding is accomplished with a flexible braid or strap.

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#122202 - 10/05/05 05:50 PM Re: Hybrid Installation
Nick Offline
Member

Registered: 08/13/01
Posts: 603
Loc: Riverside, CA

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#122203 - 10/06/05 09:37 PM Re: Hybrid Installation
Tesla Offline
Member

Registered: 06/16/04
Posts: 1280
Loc: Sacramento, CA
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

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#122204 - 10/18/05 05:07 AM Re: Hybrid Installation
electure Offline

Member

Registered: 12/24/00
Posts: 4226
Loc: Fullerton, CA USA
Nick,
I'm not surprised that you recognize these!

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

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