Guide to the connection of internal and external plastic coated composite steel pipe

Number of visits：3 seconds Update time：2025-01-23

I. Welding connection: strong and durable

For the connection of internal and external plastic coated composite steel pipe welding is a common and reliable method. Through the welding process, the materials at the pipe connection are melted and fused together using high temperature to form a solid whole. This type of connection ensures the firmness and sealing of the pipe connection, enabling it to withstand high pressure and impact, and is suitable for occasions with high requirements for connection strength and sealing. After the welding connection is completed, the piping system is like a seamless whole, in which the water can flow smoothly and without obstruction, and there will be no leakage and other problems.

II. threaded connection: fast and convenient

Threaded connection is another commonly used internal and external plastic coated composite steel pipe connection. This way through the end of the pipe processing out of the thread, and then the thread of the two pipes are screwed each other to realize the connection of the pipe. The advantage of threaded connection is that the operation is simple and fast, can quickly complete the installation and disassembly of the pipe, especially suitable for frequent maintenance and replacement of pipe fittings in the occasion. For example, in some small water supply systems or household water piping maintenance, threaded connections can easily remove the damaged fittings for replacement, without the need for large-scale changes to the entire piping system. However, the sealing of the threaded connection is slightly weaker than the welded connection, so it is more suitable for docking sealing requirements are not particularly high occasions.

III. flange connection: good sealing and easy to disassemble

Flange connection is a widely used in pipeline engineering connection, internal and external plastic coated composite steel pipe is no exception. Flange connection by installing a flange at the end of the pipe, and then use the bolt to connect the two flanges closely together, so as to realize the connection of the pipeline. This type of connection has the advantages of good sealing, easy installation, quick disassembly, etc. It is especially suitable for some occasions with high requirements for sealing, such as chemical pipelines and high-pressure water supply systems. Flange connection can not only withstand greater pressure, but also when needed to easily disassemble the pipeline for inspection, cleaning or replacement of internal components, for the pipeline system maintenance and maintenance provides great convenience.

IV. the joint connection: a simple and convenient solution

Joint connection is a simple and convenient way to connect internal and external plastic coated composite steel pipe. This method uses specialized pipe joints to connect two pipes together. The advantage of joint connection is that it is simple to operate and does not require complex tools and skills to quickly complete the connection and dismantling of pipes. It is especially suitable for some occasions that require frequent replacement of pipe fittings or equipment, such as fire sprinkler systems, irrigation systems and so on. Through the joint connection, it is easy to connect the pipes with various valves, sprinklers and other equipment to realize the control and distribution of water flow. At the same time, the joint connection also facilitates the quick replacement of damaged parts and the restoration of normal operation of the system when the piping system fails.