The backwater valve for wastewater without sewage is equipped with two mechanical flaps which close automatically in the event of backwater. One flap serves at the same time as an emergency closure
The backwater valve for rainwater is equipped with a mechanical flap which closes automatically in the event of backwater. Thanks to the modular KESSEL system, existing systems can easily be
The backwater valve for rainwater is equipped with a mechanical flap which closes automatically in the event of backwater. Thanks to the modular KESSEL system, existing systems can easily be
The backwater valve for rainwater is equipped with a mechanical flap which closes automatically in the event of backwater. Thanks to the modular KESSEL system, existing systems can easily be