WISY Downpipe Filters
WISY vertical downpipe rainwater filters for roof areas of 150m² and 200 m²
WISY Filter Collectors for vertical downpipes are high efficient stainless steel rainwater harvesting filters.
Rainwater coming from the roof through the downpipe is drawn through the vertically placed stainless-steel filter insert by natural adhesion and then is led through the outlet (DN50/50mm) to the rainwater storage cistern tank.
More than 90% of rainwater passing through the FS/STFS is filtered and collected by this principle.
Due to the unique and patented construction dirt particles contained in the rainwater (larger than 0.28 mm) are rinsed directly into the drain with the remaining residual water.
WISY FS Filter Collector | Video
FS Filter Collector - 150m²
- max. flow rate: 4.2 litres/second
- 90% filter efficiency
- outlet above ground
STFS Filter Collector - 200m²
- max. flow rate: 4.2 litres/second
- 90% filter efficiency
- outlet underground
Drainage-Safe Rainwater Filters
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 collect. This is especially important in hail storms and torrential rainfall.
In such cases 50% of the filtered rainwater is still transferred to the storage cistern/tank.
Excess rainwater is led directly to the rainwater drain or soakaway. Resistance to corrosion and frost is guaranteed.
FS 110 VA for nominal size (DN) 100 (3.9 in.) | external diameter 100 mm (4 in.)for roof area of up to 150 m² - water to be extracted above ground level - Material: stainless-steel housing version Stainless-steel housings can be used in zinc or copper down pipes without any galvanic problems For installation in vertical round plastic downpipes. Safe against backflow Filter insert of stainless-steel, filter mesh size 0.28 mm (standard version) outlet size for filtered rainwater to the storage tank: DN 50 (50mm/2")
FS 68 VA for nominal size 68mm (2½” BS) for roof area of up to 150 m² water to be extracted above ground level Material: stainless-steel housing version Suitable for plastic downpipes Stainless-steel housings can also be used in zinc or copper down pipes without any galvanic problems For installation in vertical metal & plastic round rainwater downpipes Safe against backflow Consists of upper housing, housing and filter insert Filter insert in stainless-steel | filter mesh size 0.28 mm Outlet size for filtered rainwater to the storage tank: DN 50mm (50mm/2")
FS 76 VA for nominal size (DN) 70 (2.8 in.) | external diameter 75 mm (3 in.) for roof area of up to 150 m² - water to be extracted above ground level - Material: stainless-steel housing version Suitable for plastic downpipes Stainless-steel housings can also be used in zinc or copper down pipes without any galvanic problems For installation in vertical metal & plastic round rainwater downpipes Safe against backflow Consists of upper housing, housing and filter insert Filter insert of stainless-steel, filter mesh size 0.28 mm (standard version) Outlet size for filtered rainwater to the storage tank: DN 50mm (50mm/2")
For securing the STFS Standpipe Filter Unit to wallincl. screw (10x120) & wall plug
STFS 110 VA for nominal size DN 100 | External Diameter 110 mm (4 in.) for plastic downpipes for roof area of up to 200 m² - water to be extracted below ground level - Material: stainless-steel housing version Stainless-steel housings can be used in zinc or copper down pipes without any galvanic problems For installation in vertical round plastic downpipes. Safe against backflow Filter insert of stainless-steel, filter mesh size 0,28 mm (standard version) outlet size for filtered rainwater to the storage tank: DN 50 (50mm/2")
STFS 76 VA for nominal size DN 70 (2.8") | External Diameter 75 mm (3 in.) for plastic downpipes for roof area of up to 200 m² - water to be extracted below ground level - Material: stainless-steel housing version Stainless-steel housings can be used in zinc or copper down pipes without any galvanic problems For installation in vertical round plastic downpipes. Safe against backflow Filter insert of stainless-steel, filter mesh size 0,28 mm (standard version) outlet size for filtered rainwater to the storage tank: DN 50 (50mm/2")