The internal seals are designed to re-establish
the watertightness of the joints between the
manhole rings and the joints between pipes.
The seal is made up of a strip of elastic material
which is positioned around the joint to be re-established
and two expansive stainless steel bands which
are positioned on both sides of the joint and
which expand mechanically against the pipe or
ring.
Available in a wide range of diameters and
materials both for the elastic strip and the
bands, and manufactured in parts in order to
adapt to your individual requirements.
Can be installed easily inside wells and concrete
pipes.