Innovative leteral sealing for any configuration
Sealing of lateral connections
Interfit is a resin cured lateral-connection
fitting used to seal
the gap between the lined pipe
and the house service line pipe.
Interfit seals this connection
preventing infiltration of
groundwater into the sewer,
preventing exfiltration of sewerage
into the surrounding soil
and preventing tree roots from
growing into the sewer.
Lateral junction connections
come in many sizes, shapes
and configurations. Interfit can
be used in the widest range of
junction configurations:
sealing mainline sewer pipelines
from DN 150 to
DN 300 and
lateral diameters from DN 100
to DN 150 with lateral angles
between 30° and 180°.
Installation
The patented installation
apparatus has been
engineered to allow Interfit to
be installed in non-standard
junctions without excavation
avoiding expensive and
disruptive dig-ups.
more...
Interfit is made of a PVC-coated
glass fibre composite
felt impregnated with a high
performance proprietary silicate
resin. The resin has been
specifically developed for high
bond strength and fast cure.
Full cure is reached in as little
as 1 hour.
The composite resin-felt cures
to form a strong long-term
bond between the sewer liner
and the house service line.
Interfit provides a strong,
inert, abrasion resistant seal
with tested and proven resilience
to cleaning and jetting
methods.
Installation is non-disruptive
and does not require excavation.
The Interfit fitting
is internally applied by a
specially developed inflatable
packer which is installed from
a nearby access chamber.
The packer squeezes the fitting
tight against the host pipe
while it cures so that there is
minimal reduction in crosssectional
area and a smooth
transition is formed with the
existing pipe.
The packer is constructed with
a hollow core that allows sewer
to keep flowing during installation
so that risk of sewerage
surcharge is minimised.
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