The vortex fine filter 300 is available in two different versions. The difference in elevation between the rainwater inlet and outlets on the short version is 145 mm less than on the standard version. Nevertheless, the short version is almost as efficient as the standard version during light to moderate rainfall.
The non-slip cover and the housing of the vortex fine filter 300 are so rugged in design that they have a vehicle-duty capacity of up to 60 metric tons (depending on version) (vehicles as defined by DIN1072 / SLW60). The WFF 300 is also available in an alternative lighter version for pedestrian traffic or vehicles weighing up to 12 metric tons.
The filtering process by the vortex fine filter produces oxygen-rich water. The high oxygen content further enhances the water quality and inhibits the growth of undesirable anaerobic organisms.
Owing to its large diameter, the vortex fine filter 300 is equipped as standard with a child safety device. This prevents children or other unauthorized persons from entering the filter and placing themselves in danger.
The rainwater inlet and the filtered water outlet can be freely rotated in the horizontal plane so that the unit can be adjusted to fit the existing piping at the installation site. The dirty water outlet is a vertical pipe at the bottom of the unit to which an elbow can be attached to direct the water flow in any horizontal direction. Even pipes that are installed deep below ground level can be connected to the vortex fine filter using the optional extension tube.
All WISY filter inserts are designed for very low maintenance. It is virtually impossible for debris or dirt to stick to their smooth, stainless-steel surface. As a result, the filter inserts have a long service life. When necessary, the filter insert can easily be lifted out of the housing by means of the supplied lifting handle for cleaning by a high-pressure cleaner or in the dishwasher.