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Load classes for drainage technology

The suitable drain for your place of installation.

Covers of drainage products for installation in the floor and ground, such as drains, separators and pumping stations must be able to withstand the maximum possible loads at the respective installation location. The weight load class indicates the weight with which a cover can be loaded. This must always be taken into consideration when selecting the product; if in doubt, the next higher class must be chosen.

Covers and upper sections to EN 1253-1

Load class H 1.5 to EN 1253-1

Load class H 1.5

Weight load capacity up to max. 150 kg

For flat roofs without use areas such as roofs with bitumen-gravel covering, gravel roofing and such like.

Load class K3 to EN 1253-1

Load class K 3

Weight load capacity up to max. 300 kg

For areas without traffic, such as bathrooms in apartments, retirement homes, hotels, schools, swimming pools, public washing and showering facilities, balconies, loggias, patios and green roofs.

Load class L15 to EN 1253-1

Load class L 15

Weight load capacity up to max. 1.5 t

For roofs with light vehicle traffic (not fork-lift trucks) on commercially used premises.

Load class R 50 to EN 1253-1

Load class R 50

Weight load capacity up to max. 5.0 t

For areas with vehicle traffic, such as commercially used premises and factories.

Load class M 125 to EN 1253-1

Load class M 125

Weight load capacity up to max. 12.5 t

For areas with vehicle traffic, such as multi-storey car parks, factories and workshops.

Covers and upper sections to EN 124

Load class A 15 to EN 124

Class A 15 (Group 1)

Weight load capacity up to max. 1.5 t

For areas that can only be used by pedestrians and cyclists.

Load class B 125 to EN 124

Class B 125 (Group 2)

Weight load capacity up to max. 12.5 t

For footways, pedestrian areas and comparable areas, car parts or car parking decks.

Load class C 250 to EN 124

Class C 250 (Group 3)

Weight load capacity up to max. 25 t

For kerbside area which, measured from the edge of the kerb, extends a maximum of 0.5 m into the carriageway and a maximum of 0.5 m into the footway.

Load class D 400 to EN 124

Class D 400 (Group 4)

Weight load capacity up to max. 40 t

For carriageways of roads (including pedestrian streets), hard shoulders and parking areas, for all type of road vehicles.

Load class E 600 to EN 124

Class E 600 (Group 5)

Weight load capacity up to max. 60 t

For areas imposing high wheel loads, e.g. docks.