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.

0 of 0 reviews

Leave a review!

Share your experiences with other customers.


The payment is uncomplicated in our store! You can find detailed info about payment and shipping here. We offer the following payment methods:

Pay online PayPal BLIK iDEAL Multibanco MyBank OXXO Trustly Prepayment

Ships Worldwide

Once your order is placed, you will receive a confirmation email letting you know that our fulfillment team has received your order. Once your order is fulfilled, you will receive an email notification with your tracking information. Shipping fees are non-refundable in the case of returns. We ship with:

Parcel shipping Pallet delivery Delivery by forwarding agent Delivery by WISY AG

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

Related products

WISY rainwater storage tank WISY rainwater storage tank
WISY rainwater storage tank WISY rainwater storage tank
WISY rainwater storage tank
Variants from US$1,883.20*
US$2,132.90*
Tip
Overflow siphon DN 110 Overflow siphon DN 110
Floating coarse suction filter for large systems
Floating coarse suction filter for large systems
Variants from US$124.30*
US$190.30*