What Are The Precautions For Installing And Using Fluorine-lined Valves?

The working principle of Sanitary Valve is to control the flow of the medium by rotating the ball. When the ball contacts the valve seat, the valve is in a closed state. So do you know what are the precautions for installing and using fluorine-lined valves?

The precautions for installing and using fluorine-lined valves are as follows:
1 The flange cover of the fluorine-lined 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 or 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 valve is connected to the pipeline, a gasket is generally not used alone, but when it is connected to the flange surface of different materials (metal surface, etc.), the PTFE flange surface is protected.
3 When the fluorine-lined 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.
5. The sealing pair of the fluorine-lined valve stored for a long time should be in a slightly open separation state to prevent the sealing surface from being deformed due to long-term pressure, which will affect the sealing function and service life.