lncorporating the TEEKAY multiple seal gasket, the design concept has been followed through to the pipe anchoring mechanism itself, which is also constructed with three progressive anchor rings. These rings permanently hold and lock the two pipes together.
The progressive anchoring design features a single element at each end of the coupling, incorporating three individual pipe anchor rings at staggered heights. This allows for a dynamic locking of the pipe and ensures all three rings are in contact with the pipe wall. Each anchor ring incorporates a chamber which allows the pipe wall to be increased locally around the area where each anchor ring engages with the pipe.
This increases the effectiveness of the anchor rings and allows for a permanent and restraint solution on plastic pipes.