
Wastewater treatment
Sewage is sewage discharged into the daily lives of residents, mainly from residential buildings and public buildings such as homes, institutions, schools, hospitals, shops, public spaces and industrial toilets.
The pollutants contained in domestic wastewater are mainly organic substances and a large number of pathogenic microbial parasites, eggs and intestinal infectious diseases. The organic substances present in domestic wastewater are extremely unstable and easily deteriorate and cause an unpleasant odor. Bacteria and pathogens multiply by organic matter as nutrients in domestic wastewater, which can lead to the spread of infectious diseases. Therefore, domestic wastewater must be treated before discharge.
To treat domestic wastewater, it is necessary to build a pipeline system, and pipelines, naturally, cannot be separated from valves. Valida Valve provides you with a complete set of solutions for household wastewater treatment.
Distribution map of valves of water lines

Figure 1
Figure 2: The return flow of wastewater from the contact oxidation tank
Figure 3 Backwashing route of solid and liquid separator
List of Common Configurations
Serial number | Title | Non-wear dimensions and pressure denomination | Configuration | Units |
---|---|---|---|---|
1 | Throttle valve with soft seal for turbo clamp | DN200 PN16 | -What? | |
2 | Electric Clamp Soft Seal Throttle Valve | DN200 PN16 | -What? | |
3 | Large diameter soft seal valve | DN150 PN16 | -What? | |
4 | Drive | DN150 PN16 | -What? | |
5 | Cast Iron Shutter Dark Rod | DN150 PN16 | -What? | |
6 | Extended rods turbo butterfly valve | DN150 PN16 | -What? | |
7 | Butterfly check valve | DN200 PN16 | -What? | |
8 | Spherical check valve | DN200 PN16 | -What? | |
9 | Rubber soft bond | DN200 PN16 | -What? | |
10 | Filters | DN200 PN16 | -What? | |
11 | Bottom valve | DN200 PN16 | -What? | |
12 | Water Level Control Valve | DN150 PN16 | -What? |
Related cases