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VCP to PVC TransitionsExpand / Collapse
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Posted 9/13/2006 9:19:31 AM
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Our City is in the process of SSES and systemwide repairs.  A recurring problem has been the previous use of Fernco type adapters for VCP repairs and transitions.  We are looking for a hard coupling system to use for these repairs.  Are there any suggestions?  Vendors and manufactureres have been no help so far.
Post #2774
Posted 10/15/2006 3:15:27 PM
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I would like to know what problems you  have encountered with fernco connectors.
Post #3033
Posted 1/24/2007 10:10:40 AM
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In my experience, transitions to/from VCP are difficult.
The pipe's outside diameter (OD) is different from that of PVC, DIP, CIP, even from mfr to mfr.
I've seen the steel banded flexible-type couplings used, but supplemented by concrete encasement of the joint.
There are other brands of couplings out there too, some with much more substantial steel banding.
I'll post the names if I can dig them out of old files.
Post #3808
Posted 1/24/2007 1:20:56 PM
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If you have a lot of leakage problems AND need some additional capacity, you could try replacement of the VCP with C-900 or C-905 PVC.  This is fairly easily done by pipe-bursting and fusible pipe (no joints.)  If you are interested, I found help at this web site for the PVC:  www.undergroundsolutions.com

David
Post #3812
Posted 9/21/2007 12:52:32 PM
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We use a shielded coupling from Mission Rubber that we like a lot better than Fernco. It does cost a little more than a Fernco shielded coupling.
Post #6720
Posted 11/13/2007 5:34:21 PM
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Fernco's have no shear strength and they will allow root intrusion. Is there a reason you can't use a coupling like Romac or Smith-Blair?
Post #7455
Posted 12/17/2007 11:23:11 AM
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We use Harco fittings.  They are a solid sleeve and our people think they're quite an improvement over ferncos.  Here is a link http://www.harcofittings.com/.
Post #7794
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