The two seats are symmetrical with the stem axis

On the one hand, it supplies the initial force for the tight sealing of the valve, on the other hand, it compresses the tight sealing ring between the valve seat and the valve body, so that the valve seat and the valve body are tightly closed. Marine hardware the two seats of the marine ball valve with the structure inlay the valve body with the axis of the valve stem as the symmetrical core, the valve seat can slide in the inlay groove of the valve body, when the spherical solid is heated and expanded, the valve seat assembly will slide, and the Belleville spring will be compressed to prevent the spherical solid from being stuck unconsciously and actively.

However, if the pressure is large, the mixture in the rubber at the pressure part will form a crystal nucleus, which will be separated from the rubber surface to form a frost spray; if the humidity of the air is too high, the effect of the mixture with a large polarity in the wave hook rubber on the raw rubber (nonpolarity) will be weakened, the solubility of the mixture will be reduced, and then the frost spray will be caused; the longer the storage time, the more obvious the frost spray on the rubber surface, because the storage ring The temperature and humidity of the air in the environment are different with the change of the season, and they are different. It's very simple that the solubility of the mixture is changed, and then frost spray is caused.

The two valve seats are inlaid with the valve body with the axis of the valve stem as the symmetrical core. The valve seat slides in the inlaid groove of the valve body. The tight sealing between the valve seat and the valve body is successfully realized by the flexible Blue Ash tight sealing ring. Due to the compressible variant of the flexible grey tight seal ring, the application of the structural marine ball valve of the door setter in a certain temperature range will not be stuck by the heating expansion of the spherical three-dimensional. The structural hard tight seal marine ball valve can be used in the working condition of the temperature not exceeding 343 ℃. Improper formula planning: fullness spraying: common in sulfur, press lock ph4225 accelerator, activator, antioxidant moving spraying: common in processing aids, moving antioxidant.