The filter collector (FS) for roof areasup to 150 mē
The rainwater coming from the roof through the downpipe is drawn through the vertically placed stainless-steel filter insert by adhesion forces, it then is led through the outlet (DN 50) to the storage tank.
Because of the unique construction (German patent no. 3812136) the dirt particles contained in the rainwater (larger than 0.28 mm) are rinsed directly into the drain with the remaining rainwater. More than 90% of the water passing through the FS is filtered and collected by this principle.
The full cross-section of the rainwater drainage system remains continuously open in the FS and STFS systems. There are no restrictions or obstructions in the appliances on which rainwater can be harvested. This is especially important in hail storms and torrential rainfall. In such cases 50% of the filtered water is still transferred to the storage tank. Excess rainwater is led directly to the raiwater drain or soakaway.
Pitched roofs of slate, clay or concrete tiles are most suitable for collecting the rainwater. Planted roof areas are less suitable because of the low water-collection effi ciency and the brown colour imparted to the collected water. Non-sealed asbestos cement roofs are less suitable, the fibres of this roof covering tend to block the fine fi- lter mesh.
Resistance to corrosion and frost is absolutely guaranteed. The compact design allows simple and easy assembly on almost all rainwater downpipes.
FS Types:
Housings can be made of stainless-steel, zinc or copper for nominal sizes DN 100, DN 87, DN 80, DN 76, plastic nominal size DN 100 and DN 70. DN 50 outlet.
Filter insert made out of stainless-steel.
For installing in downpipes of metal or plastic.
The design principle only works with round downpipes.
