Frequently Asked Questions

Our EPDM seals are very long-lasting when used appropriately. However, if watertightness is an important criterion for you, we would request you to consider the seals to be a part which is subject to wear and tear, and to check their condition regularly.

If the cover is opened and closed particularly often (e.g. models with gas struts), or if the seal is subjected to dirt, its lifespan is reduced.

If your seal appears damaged or no longer flexible, we recommend that you order a replacement seal from HAGO (giving details of the cover model and size). Replacement seals are always delivered with suitable glue and instructions for changing the seal.

A very important question, as “125 kN test load” or “B 125” refers to neither the wheel load nor to the load capacity per square metre. The basis is the European Standard EN 124. It divides possible installation locations of access covers into 6 groups. Group 2 includes: footways, pedestrian zones, car parks or car parking decks.

For these areas (Group 2), the Standard provides for the installation of access covers of class B 125 (125 kN test load). Access covers are classified as B 125 with regard to load capacity if no cracks (in simplified terms) are produced by up to 125 kN force on the test rig (25 cm diameter block).

This test procedure according to EN 124 thus serves to classify access covers. HAGO access covers should, however, never be subjected to the indicated test load in normal usage.

The European Standard EN 124 does not give a direct indication of the actually possible load in kN or tonnes. However, as a rough guideline it can be said that HAGO covers with “125 kN test load” – when fully filled with grade C 35/45 concrete – can be slowly driven over with a maximum 3 tonnes wheel load (air-inflated tyres). That corresponds to the maximum wheel loads which can be expected in car parks or car parking decks.