Choose PVC glue and connector. The water supply pipe below 1 10MM shall be connected with the connector with PVC glue. When the water supply pipe exceeds 1 10MM, connect it with a multi-purpose rubber ring, and connect the drain pipe with the joint with glue. When the pipe has a flat mouth, it can be directly connected. In essence, the pipe and the straight head are combined and produced together. Rubber ring is a special kind of rubber ring. Put it into the expanded R port, apply lubricant, and then insert the pipe into the nozzle.
2. Connection mode of 2.PVC water supply pipe.
1. Used for bonding indoor pipes;
2. Socket-type flexible connection of elastic sealing ring for outdoor buried pipeline:
3. It is often used for connection of injection-molded fittings with copper thread buckle or flange connection with other pipes with different materials and their fittings, sanitary ware and other interfaces.
The second of these three connection methods is more common, so we will introduce the flexible connection of outdoor buried pipeline with elastic sealing ring in detail.
3, elastic sealing ring socket flexible connection.
This kind of flexible connection requires that the insertion length of the pipe end must be reserved for thermal expansion and cold contraction caused by temperature difference, and the amount of thermal expansion and cold contraction is calculated and determined according to the closing temperature during construction. Therefore, when the PVC water supply pipe adopts the flexible connection of elastic sealing ring socket, it is necessary to clean up the foreign bodies on the outer surface and the inner surface of the socket first, and draw the insertion length mark line; The pipe end of the socket should be chamfered, and the thickness of the chamfered pipe end is generally 1/3- 1/2 of the pipe wall thickness, and the chamfering is generally 15.
In addition, the end of the socket and the outer surface of the elastic sealing ring should be lubricated with lubricating liquid such as soapy water. Then align the socket connecting the pipeline with the socket, and insert the pipeline into the marking line in a straight line with drawing tools such as wire drawing pliers and cranes. If the insertion resistance is too large, check whether the rubber ring is normal in time. After these processes, check the correctness of the rubber ring position with a feeler gauge.