1. Repair method for electric melting and hot melting connected pipes with small damage scope
In this case, the repair method of electric melting sleeve or modified saddle shaped electric melting pipe fittings shall be adopted to cut off the damaged parts of the steel mesh skeleton plastic composite pipe, and then connect them with electric melting sleeve or modified saddle shaped electric melting pipe fittings.
2. Maintenance methods for pipes connected by electric melting and hot melting with large damage range
In this case, the damaged pipe section should be cut off and replaced with a new pipe. Electric fusion, hot melt connection or flange connection can be used at the interface, but the latter welded junction must be connected with electric fusion sleeve or flange connection.
3. Maintenance method for water leakage at the interface of electric melting and hot melting connection of pipes and pipe fittings
In this case, the pipes shall be cut off, and the pipes and fittings of the steel mesh skeleton plastic composite pipe shall be electrically fused and hot-melt connected again according to the construction requirements.
4. Repair method of pipeline damage with flexible connection of socket type rubber ring