Shenyang Taike Fluid Control Co.,Ltd

Shenyang Taike Fluid Control Co.,Ltd

Surface Treatment Method Of Cast Steel Ball Valve

     After the surface treatment of the valve core, valve seat composition of the sealing pair (friction pair), with excellent wear resistance, with the increase in sliding distance, after treatment of the seal wear increased slowly, the friction coefficient is lower than the surface treatment before.Cast Steel Ball Valve

    The core coating has higher microhardness than the substrate, because the TI2O3 has formed a dense reticular structure in the Al2o3-tio2 coating, which has the best bonding strength and thermal shock resistance. After a comprehensive study of the surface treatment of the valve core of the high temperature cast steel ball valve, it is shown that the composite performance of the Al2o3tio2 coating by the valve core plasma spraying and the nwi of the seat brush plating is superior to other matching schemes, which can be used to manufacture the high temperature ball valve by this pairing scheme. After the actual field application of the reconstructed ball valve, the scheme is practicable.Cast Steel Ball Valve

    The diameter of the through hole is slightly smaller than the diameter of the pipe, and the ball valve is called shrink diameter. The sphere is free to rotate in the seat seal ring with the help of the stem. In the opening, the ball hole and pipe diameter alignment, has ensured that the pipe working medium resistance is minimal. When the stem is rotated 1/4 times, the ball hole is perpendicular to the valve's channel, by adding to the preload of the two seat seals and the medium pressure to press the sphere tightly on the outlet end of the seat seal ring, thus ensuring the valve is fully sealed. This kind of ball valve is a single side forced seal.Cast Steel Ball Valve

     The ball valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. Ball valve is widely used in recent years a new type of valve, it has the following advantages: Ball valve only need to rotate 90 degrees of operation and a small torque can be closed tight. Complete equality of the valve in the body cavity for the medium provides a very small, straight-through flow channel. It is generally believed that the ball valve is most suitable for direct opening and closing use, but the recent development of the ball valve has been designed to make it have throttling and control flow. Cast Steel Ball Valve

    The main feature of the ball valve is its compact structure, easy to operate and repair, suitable for water, solvents, acid and natural gas, such as general working medium, but also suitable for poor working conditions of the medium, such as oxygen, hydrogen peroxide, methane and ethylene. The ball valve body can be a whole, or it can be combined.Cast Steel Ball Valve

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