Welding repair method of PVC drainage fittings

Welding repair method of PVC drainage fittings
PVC drainage accessories if there is water leakage, you can choose to use the welding repair method. In the welding time to pay attention to ensure that the welding parts dry, while cleaning the surface of the dust, oil and other oils and fats, in the bonding interface welding repair, the adhesive must be removed clean welding.
PVC drainage parts Road and pipe fittings in the structural safety conditions do not affect the slight leakage, can be used PVC-U welding repair welding, ambient temperature is not less than 5 degrees celsius. Using multi-layer welding, to cool down after a period of time, and then the next layer of welding. Welding, the need to maintain appropriate temperature and pressure, the hot air temperature should be 260 degrees Celsius -290 degrees celsius. Overheating is easy to deform or carbonization, and the pressure is too high may cause the cracking of the weld after cooling.
If PVC is because the drainage fittings Dingfan apron or pipe to replace damaged pipe, the pipe should be cut off. The following 160 diameter pipeline, heat socket can be taken on-site repair, the two ends of the pipeline sawing up, both sides for chamfering. Interception of a replacement tube, will replace the ends of the tube after heating and insert cut off both ends of the pipeline and put into the ditch, then after cooling.
Flange fast docking, PVC road drainage fittings replacement parts cut ends hit groove. Take the joint four, the replacement of a section of the pipe. Four socket joints are sheathed in the two ends of the replacement pipe and cut off the PVC drainage parts at both ends, and the replacement of the set of socket joint and a good socket connector of the broken pipe flange connection.
The fast joint top double apron expansion or damaged oral sawing. Both ends of the broken pipe are sheathed with a movable sleeve flange and a rubber ring. The broken pipe flat back flange sleeve, the distance equal in broken tube ends, will looper flange and the flange sleeve with bolts.

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