Abstract:The lined plastic pipe has excellent performance and is used to transport corrosive substances in many chemical industries. However, it is sometimes n...
The lined plastic pipe has excellent performance and is used to transport corrosive substances in many chemical industries. However, it is sometimes necessary to allow the plastic-lined pipe to be placed for a period of time before being connected to the equipment, and its storage must be arranged so that it will not be corroded before installation, otherwise more serious problems will occur during use after installation.
Before connecting the pipe to the joint, check whether the sealing of the joint is damaged or contaminated. If the above-mentioned problem occurs, it should be solved immediately. Then buckle one end of the pipe on the pipe fitting to check whether the connection of the plastic-coated steel pipe and the pipe fitting are in good condition to ensure that the connection is leak-free. An adhesive storage tank should be installed between the steel pipe and the plastic lined pipe to ensure a more stable balance between them. The plastic-lined steel pipe is sealed under heating and then fixed by melting the adhesive.
When connecting plastic-lined pipes, it is necessary to pay attention to the connection technology and whether there are contaminated or defective areas in the nozzle to avoid subsequent connection difficulties.
According to the application of construction pipeline or pipeline, common connection methods include threaded connection, flange connection, welding, groove connection (clamp connection), card sleeve connection, compression connection, hot melt connection and socket connection.
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