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In-Weg Seals
The most cost effective permanent repair for large diameter pipes.
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In-Weg synthetic rubber seals are installed over the interior of the joint from inside man-entry pipes.
Can be used cast iron, concrete and steel pipes with diameters from 400 mm (16") to 3660 mm (144") these
seals permanently eliminate leaks at internal pressures up to 20 bar (300psi.)
Excavations for access are usually 600 meters apart but can be much more, causing little disruption to
traffic. Manufactured in the USA, well over 80,000 have been successfully installed worldwide.
In-Weg seals are locked into place by stainless or carbon steel retaining bands, depending on the
application. Seals can be used with specially manufactured sleeves to permanently seal cracks, reducers or disused branches.
EPDM synthetic rubber seals are classified by Underwriters Laboratories (UL) to ANSI/NSF standard 61-1991 for use with potable water.
Nitrile synthetic rubber seals are manufactured to BGC/LC6 standard for use on natural gas lines.
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