Fluorine lined ball valve
flange fluorine lined ball valve packing analysis Fluorine lined ball valve flange fluorine lined ball valve, the performance of the packing directly affects the sealing performance of the flange fluorine lined ball valve, the combination, installation and filling method of the packing will cause the flange lined with fluorine The sealing performance of the ball valve is unstable. So the stability of the filler is very important. Fluorine-lined ball valve Flange-lined fluorine-lined ball valve packing characteristics: ①． It has a certain plasticity, and can generate a certain radial force under the action of the pressing force and is in close contact with the shaft. ②. It has sufficient chemical stability, does not pollute the medium, the packing is not swollen by the medium, the impregnating agent in the packing is not dissolved by the medium, and the packing itself does not corrode the sealing surface. ③Good self-lubricating performance, wear-resistant and small friction factor. ④ When the shaft has a small amount of eccentricity, the packing should have sufficient floating elasticity. ① Simple to manufacture and easy to fill. Fluorine-lined ball valve Flange-lined fluorine-lined ball valve installation attention: ①． The inner surface of the stuffing box and the shaft surface of the flange-lined fluorine ball valve should not be scratched (especially axial scratches) and rusted, and the surface should be smooth. ②. The size of the packing ring should be coordinated with the size of the stuffing box and shaft, and replacement should be considered for those that do not meet the specifications. ③. The cut packing ring cannot be deformed arbitrarily. When installing, the notched packing ring is axially twisted from the shaft end to the shaft, and the split shaft sleeve cylinder can be used to push it into the rear end of the shaft. And its incision should be staggered. ④. For the packing seal that has failed, if the cause is the packing, it can be dealt with by replacing or adding packing to make it operate normally. As we all know, the performance of the packing directly affects the sealing performance of the flanged fluorine-lined ball valve. The combination, installation and filling method of the packing will cause the sealing performance of the flanged fluorine-lined ball valve to be unstable. So the stability of the filler is very important.
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