Sealing types

Standard seal frame detail + lugs
The seal is formed by the metal cover edge sitting against a steel frame.

Double seal frame detail + lugs
2 no. rubber seals provide water-tight double protection against leakage/odours.

Product specification

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Different chamber and manhole locations require a rated access cover to match their relevant traffic. This table is a guide to the loading required according to the location of the manhole or chamber.