Manlid manhole cover assembly

The manhole cover assembly is designed according to the legal specifications (ADR) according to EN 13094, EN 13317, and EN 13314. Safety is the highest priority here! To ensure this, the entire manhole cover plate, as well as the fill hole cover (according to EN 13314) is manufactured out of tough aluminium material with 12 % elongation (EN 13094, No. 5.2), as is required in ADR 2007 (6.8.2.6). On the manhole cover plate (inner ? 500) in addition to the