What's the Difference Between Plastic Lined Steel Pipe and Rubber Lined Steel Pipe?

The main differences between lined steel pipes and lined rubber pipes are as follows:

1. Processing Technology: Lined rubber pipes typically utilize manual bonding and pressure vulcanization techniques; lined plastic pipes generally employ equipment heating and whole molding, with most of the main production steps being completed with the aid of machinery. Consequently, the production efficiency of lined plastic pipes is notably higher than that of lined rubber pipes.

2. Physical Properties: Lined rubber pipes inherit the excellent properties of rubber, exhibiting both excellent resistance to chemical corrosion and remarkable wear and temperature resistance. In contrast, lined plastic pipes, while having similar chemical corrosion resistance to lined rubber pipes, are inferior in terms of wear resistance, temperature resistance, and adhesive strength.

3. Weather Resistance: Field tests have proven that rubber maintains stable performance under harsh conditions, thereby demonstrating the strong weather resistance of rubber-lined pipes. In comparison, plastic-lined pipes exhibit less weather resistance than rubber-lined pipes.

4. Service Life: Due to the fact that rubber plates are generally used for internal bonding in lined pipes, there will inevitably be overlap seams, whereas plastic-lined pipes are formed in one piece. Therefore, plastic-lined pipes exhibit greater stability and have a longer service life in general chemical water transportation and circulation water treatment applications. In conditions with erosive media, lined pipes tend to be more durable.

5. Cost: Due to the differences in material and processing technology, there is a significant difference in cost between lined rubber pipes and lined plastic pipes. Overall, lined plastic pipes have a clear cost advantage over lined rubber pipes.