Connection method of PVC pipe fittings: PVC pipe fittings are connected with a special adhesive. Before using the adhesive, it must be shaken; Wipe the surface of the connector and brush the glue evenly in the socket, brush the glue twice outside the socket, and put the glue away after drying for 40 seconds. At the same time, pay attention to appropriately increase and decrease the drying time of the glue according to the climate change; It must be placed in a trench after installation and the pipe must be backfilled 24 hours after dry joining. When backfilling, fill the pipes around the pipes with sand, omit the joints, and do a lot of backfilling
There are four ways to connect PVC pipes: for large-scale damage to the pipe, the entire pipe should be replaced, and a dual-port connector can be used to replace the pipe; the solvent method can be used to deal with the leakage of solvent glue. At this point, the water in the main pipe is drained, creating a negative pressure in the pipe, and then injecting adhesive on the hole at the leak site. Due to the negative pressure in the pipeline, the adhesive will be sucked into the pores, so as to prevent leakage; the sleeve repair bonding method is mainly aimed at the leakage of the casing through the small holes and joints. At this time, the same diameter of 15-500 is selected. The pipe is cut longitudinally. According to the method of connecting the joint, the inner surface of the casing and the outer surface of the repair pipe are roughened, and the sleeve is glued and tightly attached to the leak; the glass fiber method is to use an epoxy resin curing agent to make a resin solution, and glass After the fiber cloth is soaked in the resin solution, it is evenly wound on the surface of the pipe or the leakage of the joint, and becomes FRP after curing.
