Is there a direction for the installation of concrete drainage pipe (with bell mouth)?

The bell mouth is opposite to the direction of water flow. According to the different inner diameters of concrete pipes, they can be divided into small-diameter pipes (the inner diameter is below 400 mm), medium-diameter pipes (400 ~ 1400 mm) and large-diameter pipes (above 1400 mm). According to the different water pressure bearing capacity, pipelines can be divided into low-pressure pipelines and pressure pipelines, and the working pressures of pressure pipelines are generally 0.4, 0.6, 0.8, 1.0, 1.2 MPa, etc.

Compared with steel pipe, concrete pipe can be divided into flat pipe, socket pipe and tongue-and-groove pipe according to different types of pipe joints. Its interface forms include cement mortar plastering interface, steel wire mesh cement mortar plastering interface, cement mortar socket and rubber ring socket.

Main applications

1, vertical and horizontal drainage and water seepage of expressway.

2. Vertical and horizontal drainage on the back of various retaining walls and side ditches of expressways.

3. Drainage of tunnels and underground passages.

4, municipal engineering, water purification plants, sewage plants, garbage dumps and other water supply and drainage.

5, golf courses, sports fields, parks and other leisure green space drainage.

6. Soil and water conservation in hillside development.

7. Underground drainage of land consolidation project.

operating characteristic

1, drainage safety

The orifice is located in the trough, and it is not easy to be blocked due to the bidirectional action of the wave crest and the filter cloth, which ensures the smooth flow of the permeable system.

2. Corrosion resistance

Compared with soft spring drain pipes, plastics are not easy to rust.

3. Strength and flexibility

The unique double corrugated structure effectively improves the external pressure strength of the product, and the drainage system will not be affected by external pressure deformation.

4. Economic

Compared with other drainage pipes with the same caliber, its price is lower.