The AAT access opening is used for easy and direct access to the concrete tank for reconstruction or maintenance work.
The frame is adapted individually to the tank diameter and the wall thickness.
The easy installation is a special highlight. The manhole respectively the door is laid poured in concrete as one unit.
The door with hinge opens to the inside which provides an additional seal against tank pressure.
The access to the manhole is fitted with a spindle closure and a seal ehich ensures quick and safe opening and closing.