One of the common installation methods is flange connection. This method is usually suitable for occasions that require frequent disassembly or maintenance. During installation, it is necessary to ensure that the flange surface is flat and clean to avoid leakage. At the same time, appropriate sealing materials, such as polytetrafluoroethylene gaskets, should be used at the flange connection to ensure the tightness of the connection.
Welding is another common installation method, especially for occasions that require long-term stable operation and are not easy to disassemble. Before welding, the pipeline needs to be preheated to reduce the thermal stress generated during the welding process. When welding, the quality of the weld should be ensured to avoid defects such as slag inclusions and pores. In addition, necessary inspections and tests are required after welding to ensure the strength and sealing of the welded joint.
For some special occasions, such as high temperature, high pressure or corrosive media environment, mechanical clamp connection may be required. This method is easy to install and does not require welding or flange connection, so it is suitable for occasions where quick installation and disassembly are required. However, it should be noted that the sealing performance of the mechanical clamp connection may not be as good as that of the flange connection or welding connection, so regular inspection and maintenance are required.
During the installation process, attention should also be paid to the support and fixation of the pipeline. Due to the particularity of its material, ptfe lined pipe needs to avoid excessive bending or extrusion to avoid damaging the inner lining. Therefore, the pipe support should be reasonably set during installation to ensure the stability and safety of the pipe.
Before installation, the pipe should be cleaned and inspected to ensure that the inside of the pipe is clean and free of impurities, and the pipe connection ports and valves should be checked to see if they are intact. This helps to avoid introducing contaminants or damaging pipe parts during installation.
After installation, pressure testing and leak checks should be performed. By pressurizing the pipe and observing the pressure changes, it is possible to check whether there is a leak at the pipe joint. This is an important step to ensure the quality of pipe installation.
The installation methods of ptfe lined pipe include flange connection, welding connection, and mechanical clamp connection. During the installation process, attention should be paid to the support and fixation of the pipe, cleaning and inspection, as well as pressure testing and leak checks. The normal operation and service life of ptfe lined pipe can be ensured through reasonable installation methods and strict installation processes.
