1. What are the types of PFA joint connections?
（1）Pipe thread joint: This is a part that connects PFA pipes to each other by screw tightening.
（2）Flange joint: The flange joint is connected to other equipment or pipelines by connecting flange and gasket with bolts.
（3）Quick connector: Quick connector is a type of connector that is convenient and quick to disassemble, especially suitable for occasions that require frequent replacement of pipes or maintenance.
（4） Elbow and tee joints: These two joints are mainly used to change the direction of the pipeline or realize the pipeline branch.
2. How to bend the PFA pipe?
When performing PFA pipe bending operations, follow these steps:
（1） First, prepare the appropriate mold or use a professional PFA pipe bender according to the required bending Angle and radius. Ensure that the working area is clean and dust-free to avoid impurities affecting the quality of the bend.
（2）Secondly, the PFA tube is heated to the appropriate softening temperature, which generally needs to be made plastic by means of a hot air gun or hot water bath, but it is necessary to control the temperature, too high will damage the material performance, and too low will not be able to bend the pipe smoothly.
（3）Then, the preheated and softened PFA tube is slowly and evenly placed on the mold and bent according to the predetermined Angle and arc. The force balance should be maintained during the process to prevent local excessive force from causing pipe wall rupture or deformation.
（4）After the bending is completed, let the PFA pipe cool and set naturally, and do not immediately apply external force or contact the cold source to ensure that the pipe can be completely restored and maintain its structural stability.
（5）Finally, check whether the bend part is round and smooth, without wrinkles, cracks and other defects, and confirm that it can be put into use before meeting the use requirements.
3. What is the minimum bending radius of PFA tube?
The minimum allowable bending radius of PFA pipe is closely related to its diameter and wall thickness. In general, this radius is set to approximately 3 times the diameter of the pipe, and this ratio is called the bending radius coefficient. For example, in PFA tube applications with a diameter of 10 mm, the theoretical minimum safe bending radius should be 30 mm.
However, it is important to note that the minimum bending radius mentioned above is only a general reference standard and is not an absolute threshold. Excessive bending may cause the pipe structure to suffer from stress concentration, mechanical degradation and even irreversible damage. In the actual engineering application and installation process, it is strongly recommended to strictly adhere to the professional bending guidance and recommended parameters provided by the manufacturer for the specific specifications of PFA pipe to ensure its stability and service life under complex conditions.
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