WISY Rainwater Harvesting Filters

WISY Rainwater Harvesting Filters

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.

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.

The below listed flow rates 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


WISY Filter Efficiency Diagram.pdf

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... read more »
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WISY Rainwater Harvesting Filters

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.

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.

The below listed flow rates 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


WISY Filter Efficiency Diagram.pdf

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WISY_WFF_100_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 100
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:...
€404.55 *
WISY_WFF_150_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 150 - w/o...
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 (dishwasher-safe) Filter mesh...
€502.09 *
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WISY_WFF_150_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 150
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:...
€523.98 *
WISY_WFF_100_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 100 - w/o...
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 (dishwasher-safe) Filter mesh...
€382.53 *
WISY_WFF_300_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 300 - 60t
Rainwater Harvesting Filter in PP - (polypropylene) extension tube/riser available (additional accessory) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 60t Steel...
€4,179.54 *
WISY_WFF_300_Rainwater_Filter.jpg
WISY Vortex Fine Filter - WFF 300 -12 t
Rainwater Harvesting Filter in PP - (polypropylene) extension tube/riser available (additional accessory) for direct underground/subsoil installation (no concrete housing chamber required) Maximum sustainable vehicle weight: 12t Steel...
€4,044.24 *
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LineArFilter100_k.jpg
WISY LineAR 100 - PE Rainwater Filter
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...
€367.77 *
WISY_FS_Rainwater_Filter.jpg
WISY Downpipe Filter FS 110 VA for size (DN) 100
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...
€251.54 *
WISY_FS_Rainwater_Filter.jpg
WISY Downpipe Filter FS 76 VA for size (DN) 76
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...
€251.54 *
WISY_FS_Rainwater_Filter.jpg
WISY Downpipe Filter FS 68 VA with extension
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...
€299.51 *
WISY_STFS_Rainwater_Filter.jpg
WISY STFS - Standpipe Filter Collector-100-110
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...
€389.17 *
WISY_STFS_Rainwater_Filter.jpg
WISY STFS - Standpipe Filter Collector-70-75
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...
€389.17 *
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