Flow coefficient of professional pneumatic pp butterfly valve 2. Classification according to sealing surface material
(1) Soft seal butterfly valve 1) The sealing pair is composed of non-metallic soft materials and non-metallic soft materials. 2) The sealing pair is composed of metal hard materials and non-metallic soft materials.
(2) Metal hard seal butterfly valve. The sealing pair is composed of hard metal material to hard metal material.
Analysis of the Causes of the Damage of the Nonmetallic Compensators
Compensator products can be classified by shape, such as spherical compensator, and also by material, such as non-metallic compensator. In many applications of compensators with different characteristics, netizens find that non-metallic compensators are relatively easy to damage. Why? This is mainly about the application environment.
Due to the different application environments, the service life of non-metallic compensators is different. Since the structural data of non-metallic compensators are soft fabric data, it is necessary to fix the leather cloth when fixing screws,
On the other hand, press the skin to seal, so that the pipeline will not leak. When the device is installed, the front screw will become loose after the rear screw is tightened, and the accumulated acid water will be soaked into the screw to stop corrosion, which will corrode the screw, seriously reducing the service life of the non-metallic compensator. Therefore, the screw needs to be tightened repeatedly when the device is installed.
In addition, during the operation of non-metallic compensator, due to vibration and other reasons, the screws will also appear loose, resulting in pipeline leakage and product damage. Sometimes, due to the movement of the pipeline, the pull rod breaks and directly cracks the non-metallic skin, making it unable to operate normally.
The environment has a great impact on the non-metallic compensator, so we need to do a better job in daily inspection and maintenance. On the one hand, we can improve the safety of operation, and on the other hand, we can find the problems of the compensator in time and make effective treatment.
