In dry weather the outlet control plate is completely opened. During storm conditions the internal float rises and activates the control mechanism. The water rises from below into the housing, so that the float moves vertically upwards. The float is linked to the inlet control plate, so that the desired flow rate is maintained.
The float rises and falls with the water level thereby opening and closing the orifice plate to maintain the desired flow rate. The housing fulfils the function of a diving bell. As the water level fills the air is compressed in the housing and restricts the rising level of the water. This ensures that the float does not have to travel the same distance as the actual head and minimizes the dimensions of the unit. The orifice plate can be completely opened with the hand release in the event of a blockage.
Automatic function without external energy
No separate throttle shaft required
Control mechanism without direct contact with water
Easy retrofitting due to compact design
TÜV-approved vertical Q/H-characteristic
Active throttle device according to DWA A111
No head loss
High-quality stainless-steel production
– integrated gate valve
– Adapter for round shaft
– integrated emergency emptying
– integrated emergency overflow