Working principle:
The initial rainwater (the first 2mm or 5 minutes of rainfall) is generally heavily polluted and has a relatively small flow rate. When flowing through the initial runoff filtration device, due to gravity, it will first be discharged through the low-level open sewage pipe. As the rainfall increases, the float ball will close the sewage pipe under the pressure of the water flow, and the rainwater will be forced to flow to the outlet pipe; after the rain stops, as the rainwater stored in the device decreases, the float ball will automatically reset, thereby completing the runoff abandonment effect. A stainless steel filter screen is installed on the outlet pipe, which can pre-filter the rainwater, and the dirt left by the filtration will be flushed away through the sewage pipe during the next rainfall, thereby realizing multiple functions such as runoff abandonment, filtration, and automatic sewage discharge.
Product Features:
1. Intercept rainwater;
2. Accurately discard the heavily polluted initial rainwater and collect the clean later rainwater;
3. Adjust the amount of diverted rainwater and display the amount of diverted flow;
4. Monitor the total rainfall to facilitate understanding of rainfall conditions;
5. After the storage tank is full of rainwater, it can automatically close the collection pipe to ensure that the tank will not overflow with rainwater.
Rainwater diversion method:
Float type
When the initial rainwater volume is small, the water level in the device decreases, and the rainwater is discharged from the sewage outlet. As the rainwater volume increases, the water level in the device rises, and the float rises to lower the connected baffle, closing the sewage outlet and allowing the rainwater to be discharged from the outlet, thereby achieving simple diversion.
Specifications:
| Model | SURH-QL2-300 | SURH-QL2-400 | SURH-QL2-800 | SURH-QL2-1000 |
| Size | H=1000mm DN=700mm | H=1000mm DN=700mm | H=1500mm DN=800mm | H=2000mm DN=1000mm |
| Inlet and outlet diameter | DN300 | DN400 | DN300 | DN400 |
| Sewage outlet diameter | DN75 | DN75 | DN110 | DN110 |
| Installation requirements | Inlet and sewage outlet The bottom drop of the pipe needs 300mm or more | Inlet and sewage outlet The bottom drop of the pipe needs 300mm or more | Inlet and sewage outlet The bottom drop of the pipe needs 300mm or more | Inlet and sewage outlet The bottom drop of the pipe needs 300mm or more |
| Control method | Rainfall control | Rainfall control | Rainfall control | Rainfall control |
Note: The above specifications are conventional models, and other models can be customized.
Schematic diagram:
Keywords:
Rainwater deep treatment
Rainwater storage
Rainwater pretreatment
Central Control System
Chip
Accessories
15th Floor, Longteng Building 416 Tianda Lane Southern Business District Yinzhou District Ningbo City Zhejiang Province