PTFE tube, that is, polytetrafluoroethylene tube, or teflon tube，with its excellent corrosion resistance, high temperature resistance, electrical insulation and low friction coefficient and other characteristics, has been widely used in chemical industry, medicine, electronics, machinery and other fields. PTFE tubes perform better when they are of the correct size. This article provides a detailed description on the size specifications for PTFE tubes in order to assist users with their selection and purchase.
1. Inner and outer diameter
The most basic sizes are the outside diameter and the inside diameter of PTFE pipes. The inside diameter is equal to the outside diameter. The user must determine the outer diameter and the inner diameter of the PTFE pipe based on the use scenario. In the case of gas or fluid transport, for example, the inner diameter will directly impact the pressure and flow of the fluid. Therefore, it is important to select the right inner diameter based on the pressure and flow requirements. The usual inner and outer diameters are ptfe tube 2mm, 3mm ptfe tube, ptfe tube 4mm, ptfe tube 6mm，ptfe tube 10mm
Second, the wall thickness
The wall thickness is the distance between the outer and inner walls of the PTFE tube, i.e., the thickness of its wall. The wall thickness has a direct impact on the mechanical strength of the pipe and its resistance to pressure. The thicker the wall, the better the pipe’s ability to resist pressure. It is important to note that too much wall thickening will result in an increase in the cost and weight of the pipe. Therefore, if the use of the pipe requires a moderate wall thickness, this should be chosen. Common wall thicknesses: 12 ptfe tube, 34 teflon tube, 36 teflon pipe ，1 4 ptfe tubing
3. Length
Users should also pay attention to the length of PTFE tubing. Different lengths are appropriate for different applications. If you want to transport liquids or gases long distances it’s best to use a longer pipe. The Jinshiling is available in an infinitely long maximum length.
4. Tolerance range
Users should also pay attention to the range of tolerances for PTFE tubes. PTFE tubes of the same size specification can have some deviations due to differences in raw materials and production processes. The user should consider the pipe’s tolerance range before selecting it to ensure the pipe will match the intended use. Our ptfe pipes have a tolerance of 0.1mm
