
Type 305 Timed SSVI
SSVI can be used both in routine plant operation and to design a final sedimentation tank. Loadings can be calculated using the WRC developed numograph.
A detailed operating manual is supplied with the SSVI equipment that details how the SSVI test is performed and how the results are interpreted.
The Type 305 SSVI consists of:
- 50 cm tall graduated measuring column
- Slow speed timed stirrer
- SSVI paddle
The Type 311 power supply or the Type 324 battery pack can both run 2 Type 305 SSVI instruments simultaneously.

Determination of the SSVI from a graph of the laboratory determined SSVI
