Rainwater filter for roof areas from 1500 to 2300 m². Filter for installation in concrete ring (diameter 120 cm). Low maintenance. Filter insert easily removed for cleaning. Material: stainless steel.

1. As rain water arrives the water level builds up, and overtops the filter lip, so ensuring it is distributed evenly across the whole with of the filter cascade.
2. Pre cleaning through the cascades. Larger dirt particles are washed across the cascades directly to the sewer.
3. Pre filtered water then flows over the secondary filter (mesh size 0.55 mm). Due to the special structure of the sieve mesh, any dirt is washed directly into the sewer which means the filter is self cleaning, low maintenance.
4. Cleaned water flows to the storage tank.
5. Dirt goes to the sewer.

Filter

Inlet
Rain-
water

Outlet
to
sewer

Outlet to
storage
tank

A
in
mm

B
in
mm

C
in
mm

D
in
mm

E
in
mm

F
in
mm

G
in
mm

Mesh-
size
Sieb

min. Ø
inspection
chamber

Maximum
Roof
Area

Filter

VF2

1 x
DN200

1 x
DN200

1 x
DN150

670

540

525

390

325

275

320

550 my

1000

1150 m²

VF2

VF3*

2 x **
DN200

1 x
DN200

1 x
DN150

670

540

525

980

325

275

880

550 my

1200

1500 m²

VF3*

VF4

2 x **
DN250

1 x
DN250

1 x
DN150

670

540

575

980

325

275

880

550 my

1200

2300 m²

VF4

VF6

2 x **
DN250

1 x
DN250

1 x
DN200

670

540

575

980

325

275

880

550 my

1200

3000 m²

VF6

* VF3 has a filter unit only on one side.
** You don't need to use both inlets but filter capacity will be higher.