The document discusses Fraenkische's Rigofill stormwater management system. It highlights the Quadro-limit throttle shaft and integrated vortex flow control valve. Testing showed the guided rotating spray nozzle effectively suspends settled solids for suction. Documentation will provide details on how the complete Rigofill system works as an integrated stormwater solution from pre-treatment to discharge. Consultants can design the non-exchangeable system into projects from design through tendering due to components like SEDI-pipe and Quadro-control.

1. Flow control with Fraenkische
Quadro-limit
- The perfect enhancement of the system
- The new throttle shaft with Rigofill design
- Vortex flow control valve, integrated in the system
1

2. Quadro-limit – how the valve works
2

3. Quadro-limit – how the valve works
3

4. Vortex valve flow control – how does it
compare to a traditional flow regulator?
Top of the boxes
Water level in the boxes
Discharge
4

5. Quadro-limit – characteristics
 For typical head of ½ up to 3 ½ layers Rigofill inspect (0.35 – 2.33 m)
 Flow range: 0.5 – 55 l/s
 Integrated in the modular Rigofill system – no separate shaft after the boxes
 Easy installation – shaft „ready-to-use“ with integrated throttle unit
 All units custom made, project related
 Reduced overall project costs
5

6. Quadro-limit – features and benefits
Summing up:
 High flow rates in all modes of operation
 Reduces emptying time to a minimum
 Minimises the required storage volume by up to 30%
 Self-activating – does not require external power supply
 Openings are larger than eqivalent orifice – highly reduced risk of blockage
 Flush Flo: Self cleaning effect
 Manufactured from stainless steel, no moving parts – longlasting construction
 Requires minimum maintenance – allows high pressure jetting
 Performance proven worldwide since the 1980‘s
6

7. The Quadro-limit in your country
- It will help the Rigofill-system beeing
nonexchangeable once beeing in the design
- The specific flow chart will be delivered for
each project.
 Depending on your countries way to calculate
the basin volume, you might need additional
information.
Fränkische has to know those to be prepared!
7

8. Rigofill inspect – enhanced jetting survey
New studies carried out by Hydro and Fränkische
 Update of the existing documentation focusing on clarifying special
issues by Scottish customers
8

9. Rigofill inspect – enhanced jetting survey
9

10. Rigofill inspect – enhanced jetting survey
10

11. Rigofill inspect – enhanced jetting survey
11

12. Rigofill inspect – enhanced jetting survey
12

13. Rigofill inspect – enhanced jetting survey
Subject to investigation: The functionality of the complete Rigofill system
13

14. Rigofill inspect – enhanced jetting survey
Test Material: Millisil W4, fraction up to 190 µm (= 0.190 mm),
officially used for DiBt assessment
 Sedi-pipe is designed to also capture these small fractions
 These are the biggest particles which could in theory enter
to the boxes
14

15. Rigofill inspect – enhanced jetting survey
15

16. Rigofill inspect – enhanced jetting survey
The jetting:
16

17. Rigofill inspect – enhanced jetting survey
The result:
17

18. Rigofill inspect – enhanced jetting survey
Spray nozzles: The winner is …
18

19. Rigofill inspect – enhanced jetting survey
Spray nozzles:
19

20. Rigofill inspect – enhanced jetting survey
Spray nozzles:
20

21. Rigofill inspect – enhanced jetting survey
The right spray nozzle:
21

22. Rigofill inspect – enhanced jetting survey
How it works: Jetting philosophie of the Fraenkische Rigofill
inspect system
1. Pre treatment only allows very fine particles to enter to
the system
2. Fill the system with water
3. Use the guided rotating spray nozzle with both 45° and
90° angles for spraying
4. Get the seddled solids into suspension
5. Suction
 Documentation will follow
22

23. Summing up
Integrated Stormwater Management Systems
- Rigofill, the complete system out of one hand.
- Your consulting brings the system into the design
and the tender phase
- The single components of the system make the complete
system nonexchangeable
 SEDI-pipe, Quadro-control, Quadro-limit keep our system
in the project through the tendering phase …
23