WISY Rainwater Harvesting Filters
Rainwater Filtration - separating solids from water
Over the past 30 years patented rainwater filters from WISY have been installed in thousands of applications throughout the world.
WISY VORTEX Fine Filters for horizontal pipes or WISY Filter Collectors for vertical downpipes.
WISY rainwater filters for mechanical filtration of water and water based liquids incorporate the following:
- nearly self-cleaning due to vertical filter mesh
- automatic onward transport of solids beyond the filter
- stable and lasting design in polyethylene (PE) and stainless-steel
- large inspection cover for easy maintenance
- ideal for industrial and commercial facilities
- high filter efficiency
- low maintenance
- no energy consumption; works with gravity
Complete Drainage Safety - DIN EN 12056 / EN 752, DIN 1989
WISY filter systems in vertical downpipes or connected to underground pipes do not obstruct the water flow, guaranteeing required drainage-safety at all times.
This is of significance during heavy precipitation events to allow the full cross-section of the pipes to be used.
At the same time, the drainage pipes and the filter systems have to be sized according to the water flow of the connected roof areas.
For orientation, WISY indicates approximate guidelines of the roof area which can be connected to the different filters available.
Maximum rainwater flow rate of WISY rainwater filters
Below flow rates of WISY filters apply for a maximum pipe slope of 1% and maximum pipe filling-level of 0.7 or 70%:
(DN100 = 4" / DN150 = 6" / DN300 = 12")
- LineAR 100 Inline Filter (4") = 4,2 l/s
- Filter Collector FS (4") = 4,2 l/s
- Standpipe Filter Collector STFS (4") = 4,2 l/s
- Vortex Fine Filter WFF 100 (4")= 4,2 l/s
- Vortex fine filter WFF 150 (6") = 12,8 l/s
- Vortex fine filter WFF 300 (12") = 80,6 l/s
The anti-flooding flap valve prevents dirty water from back-flowing into the rainwater storage tank Installation downstream of the filter in the stormdrain outlet of the storage tankCan either be fitted inside or outside of the tank Outside installation recommended in small concrete chamberAccess required to the manual locking lever Dimensions: 310x200x190 (LxHxW)Maintenance-Free
50 cm extension tube of polypropylene (PP) to raise the inspection opening to the ground level The extension tubes are fitted by removing collar & lid of filter & placing same on topEasily cut to length due to the moulded-in parallel lines.Up to 2 extension tubes can be combined
material: stainless-steel support base to fix on round concrete rainwater tanks suitable for both WISY Vortex Fine Filters WFF 100 and WFF 150 incl. stainless-steel screws & wall-plugs
material: stainless-steel suitable for both WISY Vortex Fine Filters WFF 100 and WFF 150 required to install & to secure WFF100/150 above ground against vertical straight wall incl. stainless-steel screws and wall-plugs
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")
Inline Rainwater Harvesting Filter in PE - (polyethylene) For installation in rainwater storage tanks Height Difference Inlet/Outlet: 52mm Housing & Material in stainless steel Filter insert (stainless-steel/dishwasher-safe) Filter mesh size 0.44 mm Construction of the vertically placed filter-mesh washes out large and fine dirt (self-cleaning) Filter insert is easy to remove - Maintenance Interval: 2-3 times/year Moss, leaves and insects are automatically washed into the drain Over 90% of the rainwater is collected Meets DIN 1986 Inlet: DN 100, 1x vertical outlet (Tank): DN 100, 1x outlet (Drain): DN 100 Area of application: for roof areas of up to 246 m²
Inline Rainwater Harvesting Filter in V2A - (stainless-steel) For installation in rainwater storage tanks Height Difference Inlet/Outlet: 52mm Housing & Material in stainless steel Filter insert (stainless-steel/dishwasher-safe) Filter mesh size 0.44 mm Construction of the vertically placed filter-mesh washes out large and fine dirt (self-cleaning) Filter insert is easy to remove - Maintenance Interval: 2-3 times/year Moss, leaves and insects are automatically washed into the drain Over 90% of the rainwater is collected Meets DIN 1986 Inlet: DN 100, 1x vertical outlet (Tank): DN 100, 1x outlet (Drain): DN 100 Area of application: for roof areas of up to 246 m²
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")
Rainwater Harvesting Filter in PP - (polypropylene) with 50 cm extension tube (shorten according to site-conditions) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 30t Filter insert in stainless-steel Filter mesh size 0.28 mm (280 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1986 Inlet: 4"/DN 100, 2x outlet(Tank/Drain): 4"/DN 100 Area of application: for roof areas of up to 200 m²
Rainwater Harvesting Filter in PP - (polypropylene) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 30t Filter insert in stainless-steel Filter mesh size 0.28 mm (280 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1986 Inlet: 4"/DN 100, 2x outlet(Tank/Drain): 4"/DN 100 Area of application: for roof areas of up to 200 m²
Rainwater Harvesting Filter in PP - (polypropylene) with 50 cm extension tube (shorten according to site-conditions) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 30t Filter insert in stainless-steel Filter mesh size 0.28 mm (280 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1986 Inlet: 6"/DN 150 | Outlet Tank: 4"/DN 100 | Outlet Drain: 6"/DN 150 Area of application: for roof areas of up to 500 m²
Rainwater Harvesting Filter in PP - (polypropylene) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 30t Filter insert in stainless-steel Filter mesh size 0.28 mm (280 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1986 Inlet: 6"/DN 150 | Outlet Tank: 4"/DN 100 | Outlet Drain: 6"/DN 150 Area of application: for roof areas of up to 500 m²
Rainwater Harvesting Filter in PP - (polypropylene) Standard Version | Height: 1.035mm | extension tube/riser available (additional accessory) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 12t Steel lid & base-plate; closing ring with certified child-safety device Filter insert in stainless-steel with 50cm stainless-steel lifting handle Filter mesh size 0.38 mm (380 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1072, DIN EN 752, DIN 1989 Inlet: 12"/DN 300, Outlet Tank: 8"/DN 200, Outlet Drain: 12"/DN 300 Height difference Inlet > Tank Outlet: 465mm Area of application: for roof areas of up to 3,000 m² Install the incoming rainwater pipe with a straight piece with a minimum length of 1.5m excluding bends Pipe downgrade: 1%
Rainwater Harvesting Filter in PP - (polypropylene) Standard Version | Height: 1.035mm | extension tube/riser available (additional accessory) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 60t Steel lid & base-plate; closing ring with certified child-safety device Filter insert in stainless-steel with 50cm stainless-steel lifting handle Filter mesh size 0.38 mm (380 micron) For connection to the drainpipe in the ground Construction of the vertically placed filter washes out large and fine dirt Moss, leaves and insects are automatically washed into the drain Over 95% of the rainwater is collected Self-cleaning / low filter maintenance Meets DIN 1072, DIN EN 752, DIN 1989 Inlet: 12"/DN 300, Outlet Tank: 8"/DN 200, Outlet Drain: 12"/DN 300 Height difference Inlet > Tank Outlet: 465mm Area of application: for roof areas of up to 3,000 m² Install the incoming rainwater pipe with a straight piece with a minimum length of 1.5m excluding bends Pipe downgrade: 1%