Type C wear-resistant ball valve
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What do you think of this type of C-shaped wear-resistant ball valve? Two-way sealing with zero leakage.
Resistant to wear and erosion; can also be used for emergency shutdown
For wear resistance, it depends on the material; a smaller contact area means better wear resistance?
It should be a ceramic valve seat, spherical in shape, with the flow channels coated with tungsten carbide. When the sealing surface is on the outlet side, the performance is fairly good; but if it is on the inlet side, erosion is severe at the narrowed area inside the valve body on the back side, and the tungsten carbide coating applied there may not last long.
Gas-solid mixing: high flow rates still result in erosion
It depends on the medium. In cases where there are solid particles, the inlet is located on the side of the sealing surface. We have two types of sealing materials: one involves coating the sphere with tungsten carbide while spraying nickel 60 on the sealing surface; the other type uses YG8 alloy for both the ball and the valve seat. This material is currently one of the hardest available and it is also resistant to erosion
Looking at the diagram, when fluid enters from the right side, the erosion of the sealing surface is minimal. There are two types of sealing materials: in one case, the ball is coated with tungsten carbide while the valve seat is coated with nickel 60; in the other case, both the ball and the valve seat are made of YG8 alloy
This valve was developed for silicon powder, so the material used for the sealing surfaces is also wear-resistant and resistant to erosion
This should be fine for use on water and 150-degree steam pipes, right?