Sanitary Ball Valve uses a ball with a circular through hole as the opening and closing part. The ball rotates with the valve stem around the center line of the valve body to open and close the valve. So do you know what are the instructions for use and installation precautions of the fluorine-lined ball valve?

The instructions for use and installation precautions of the fluorine-lined ball valve are as follows:
1 The flange cover of the fluorine-lined ball valve cannot be opened at will, unless it is ready to be connected to the pipeline, otherwise the PTFE flange surface may be scratched or deformed due to temperature difference and foreign matter, affecting the seal. If the cover is moved due to inspection needs, it should be reset as soon as possible after inspection to protect the PTFE flange surface.
2 When the fluorine-lined ball valve is connected to the pipeline, gaskets are generally not used separately, but when it is connected to the flange surface of different materials (metal surface, etc.), appropriate gaskets should be used to protect the PTFE flange surface.
3 When the fluorine-lined ball valve is used in the system, if leakage occurs at a higher temperature, the system temperature should be lowered to room temperature, and then the cause should be found out and repaired.
4 During installation, the flange nuts should be tightened evenly in the diagonal direction (symmetrically) and with appropriate torque: a If the flange sealing surface leaks and the nut at the leaking position has been tightened, the nut at the leaking position should be loosened half a turn, and then the opposite side should be tightened again with the same torque; b If the above method still fails to stop the leak, check whether there are concave and convex marks or scratches on the PTFE flange surface. At that time, fine gauze paper or cloth can be used to level it and reconnect it.
10 The sealing pair of the fluorine-lined ball valve stored for a long time should be slightly opened and separated to prevent the sealing surface from being deformed due to long-term pressure, which will affect the sealing function and service life.