Mainly used to transport various types of sewage, wastewater, rainwater, or other insoluble solid phase mixed liquids containing solid particles, sediment, and fiber. Widely applied in:
- Urban sewage treatment plant drainage systems
- Factory and commercial heavily polluted wastewater discharge
- Residential area and civil air defense system drainage
- Hospital and hotel sewage drainage
- Hydropower station auxiliary machinery drainage
- Municipal engineering and construction site drainage
- Exploration and mining supporting equipment