Experience in confined space
work and in fitting the AMEX®-10-Seal for internal pipe repairs
ensured PMP were successful in solving a problem at Thames Water’s
High Wycombe sewage treatment works.
Working under contract to Amec, drainage and civil engineering contractors
Dragtone Ltd were installing a 1.5km pipeline when a leaking joint
was discovered in a 600mm outlet pipe from a treatment tank.
As the whole chamber was in concrete, excavating to the outlet pipe
for an external repair was considered too costly. Dragtone called-in
PMP on the basis of previous successful operations and PMP sent
an urgent response team to repair the leaking joint internally.
A PMP engineer used breathing apparatus while working in the extremely
confined space, which was accessed through the 600mm pipe bend from
the tank floor. The pipe joint was completely repaired according
to schedule.
As a low profile mechanical seal, the AMEX®-10-Seal can repair
leaking pipe joints from within a pipe, without causing an obstruction
to flow. A robust section of EPDM rubber that spans the joint is
fitted using hydraulic expansion of stainless steel compression
rings, thus eliminating the uses of chemical adhesives and their
associated hazards. The abrasion-resistant seal is able to accommodate
substantial joint movement and is quality assured, as each seal
has an independently verified life expectancy of more than 50 years.
