1、 When the steel wire mesh skeleton plastic composite pipe adopts the socket type rubber ring flexible adjacent pipe, the damaged pipe section can be cut off to change the new pipe; Then use double socket collar or sensitive sleeve (repair negotiation repair device) to connect.
2、 When the damage scope of pipes adjacent to electric melting and hot melting is large; It is necessary to cut the damaged pipe section and change it with a new pipe. The interface can be connected by electric fusion, hot fusion or flange, but the end of a weld must be connected by electric fusion sleeve or flange.
3、 In case of water leakage at the interface between electric melting and hot melting of pipes and pipe fittings, the pipes shall be stopped, and electric melting and hot melting of pipes and pipe fittings shall be carried out according to the construction requirements.
4、 The damaged pipes and fittings shall be laid according to the construction requirements.
5、 For pipeline crushing caused by internal causes such as pipeline foundation settlement, temperature change, internal load change, etc., response steps should be taken to remove various internal components after pipeline repair.
6、 When the pipeline with the nominal outside diameter less than or equal to 63mm is damaged, the damaged pipe section can be cut off, new pipe can be changed, and the composite pipe with wire mesh framework can be connected with a patcher.
7、 When the damage scope of the pipe adjacent to the hot melt of the steel mesh skeleton plastic composite pipe is very small, the repair method of the electric melting sleeve or Dingxin saddle shaped electric melting pipe fittings is adopted to block the damaged part of the pipe, and then the electric melting sleeve or Dingxin saddle shaped electric melting pipe fittings are used to connect.
