What causes leakage in the valve body?
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Rigid-seal slurry valve, carbon steel valve body, used for pressure screen tailings – it wears out very easily. What is the reason? Is the valve body too thin or is the medium too harsh?
Fluidized gas-solid dilute phase transportation? Is the flow rate too high, or is there excessive throttling at the valve? Gate valves for catalyst regeneration systems in catalytic cracking reactions are recommended.
Since the material contains solids, leaks can occur due to erosion; it is better to use valves made of materials resistant to erosion. Alternatively, consider increasing the diameter of the pipes and valves to reduce the flow rate, which can help minimize erosion
It may be due to changes in flow velocity at the throttle point, with solid particles in the turbulence causing wear and damage to the material; furthermore, the presence of solid particles during switching can also have an impact, accelerating the rate of corrosion
Understanding does not constitute catalysis, but based on the images of the valves, their operating environment is similar to that of catalysts used in catalytic cracking; therefore, it is recommended to use catalysts from catalytic cracking for such valves.
If the bottom part is worn out, it might be because the valve cannot be closed properly; there is internal leakage in the valve, and fluid keeps flowing through this area, resulting in leaks
Valves are used to regulate flow, and are often left at a half-open position or at some other degree of opening