1. The flat mouth pipe belongs to the most traditional type of interface method of cement pipe . The production difficulty is not very large. It has a relatively high output power and the production cost is very small. The interface seal uses a steel mesh concrete wiper tape as a rigid connection. However, its sealing effect and seismic resistance are not very good. If the foundation is shifted so that the interface can swing away, sewage may pollute the underground soil, and the environment is not very favorable, so this type of interface method is not used much.
2. The flexible tongue and groove interface method is usually applied to cement pipes with a caliber of not less than 1200. This interface method is attributed to flexible connection. This interface method has the characteristics of socket type and is better than socket type.
3. The socket type interface uses a rubber ring to seal the water. It is a flexible connection. The penetration depth of the interface is in the range of 80-100. The cement pipe of this type of interface has good seismic resistance. The foundation or concrete foundation, the speed of the device is very agile, but it is best not to use socket-type joints for large-diameter cement pipes , because large-diameter cement pipes show circumferential cracks.