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Manhole Base-Liners
PMA-Liner
Corprotect
Infra-manhole
Multro manhole ring
Drop structures
Connection Bells
REHABILITATION
Flexliner
Base-Cover
Duplex-Manhole
DUPLEX HYBRID MANHOLE

product overview

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Renovation
New Building
Fittings for manhole structures

PP/GRP Synthetic Material

Manhole Base-Liners

Plastic manhole base-liners are the ideal protective lining for concrete manholes.

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PMA-Liner

The PMA-Liner-Manhole system features a lined joint connection with integral seal and load transfer.

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PP / GRP SYNTHETIC MATERIAL

Corprotect

The plastic inliner permanently protects the concrete components (manhole rings, cone) against corrosion.

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PP / GRP SYNTHETIC MATERIAL

Infra-manhole

The INFRA-MANHOLE offers the possibility to lead wastewater (WW) and rainwater (RW) in separate channels through the same manhole.

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PP / GRP SYNTHETIC MATERIAL

Multro manhole ring

For a split sewer systems with a separate duct for rainwater. When there are large differences in the invert levels, the rainwater network is integrated in a manhole ring.

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PP / GRP SYNTHETIC MATERIAL

Drop structures

Internal and external drop structures. The drop structures can be installed in new as well as in existing manholes.

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PP / GRP SYNTHETIC MATERIAL

Connection Bells

Connection bells for precast concrete manholes, which are available in various dimensions for almost all commercially available sewer pipes.

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SYNTHETIC MATERIAL

REHABILITATION

Depending on the local conditions, PREDL works with different rehabilitation methods. The development of modern rehabilitation methods for sewage manholes is one of our core competences.

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POLYUREA SYNTHETIC MATERIAL

Flexliner

With the FLEXLINER, trenchless manhole rehabilitation is possible within a very short time. The FLEXLINER is bent together for insertion into the manhole, undivided and free of damage, and then unfolded again to its original size in the manhole base.

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PP / GRP SYNTHETIC MATERIAL

Base-Cover

The retrofittable polypropylene channel cover prevents annoying odour emissions and reliably protects the rising shaft area from corrosive attack by hydrogen sulphide.

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PP / PE SYNTHETIC MATERIAL

Duplex-Manhole

The DUPLEX manhole is a complete plastic manhole system.

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PP / PE SYNTHETIC MATERIAL

DUPLEX HYBRID MANHOLE

A combination of the DUPLEX manhole and precast concrete manhole bases with monolithically cast-in PREDL manhole base-liner and plastic lining up to the first joint.

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