GVA UPB systemUnderwater positioning and fastening system

The GVA UPB system ensures fast and easy maintenance of the aeration grids and fields.

Removable aeration fields that can be taken out of the basin during operation for maintenance purposes without having to lower the water level make sense economically and can be realized with our GVA UPB system.

The aeration grid is moved over a permanently installed guide structure from its fixed position and released and is easy to operate from the edge of the basin. The grid slides safely in the guide when it is raised and lowered. It is secured and fitted to the bottom via eccentric motion. No additional complex tasks need to be performed to secure it from floating up.

Depending on the size of the aeration fields, mobile hoists can be used for smaller units. Mobile cranes are required for handling large units.