The retention regulator is intended for installation in cisterns to control the amount of water draining into the canal. Freely hanging from the floating ball is the inlet filter . This ensures that the downstream pipes and lines are always free of blockages and that the water can flow off in the specified quantity.

The flexible connection hose adapts to the respective water level. The hose remains permanently flexible without cracking due to the up and down movement. The outflowing water is then discharged into the sewer system through a pipe end cap DN 110.

Retention regulator with:

  • Floating ball (150 mm diameter)
  • Stainless steel ring
  • Coarse Inlet filter with 1" nozzle
  • 1m flexible connection hose 1"
  • 2x hose clamp 1"
  • 2/3 hose fitting
  • flat sealing
  • nozzle 1" with 1" union nut
  • Container screw connection and nut 1"
  • inserted baffle plate
  • End cap KG 110

The flow rate of the WISY retention regulator is adjusted using a baffle disc inserted into the regulator. The retention regulator is therefore suitable for different discharge volumes.

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Article number

Ø orifice (mm) Article number
3 RD 2003
5 RD 2005
6 RD 2006
8 RD 2008
10 RD 2010
12 RD 2012
13 RD 2013
16 RD 2016
18 RD 2018
20 RD 2020
22 RD 2022
24 RD 2024

Technical details

Ø Flow limiter (mm) Litres / sec. Litres / min. litres / h
3 0,016 0,97 58
5 0,044 2,61 157
6 0,057 3,43 206
8 0,087 5,22 313
10 0,133 8,0 480
12 0,22 13 780
13 0,28 17 1020
16 0,38 23 1380
18 0,50 30 1800
20 0,67 41 2400
22 0,85 52 3060
24 1,05 63 3780

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