Searching for a high-pressure valve
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Looking for a valve, DN50. The material consists of iron oxide powder (200 mesh) accounting for 75%, alkali solution at 15%, a pH level of 13, and a pressure of 6 MPa. The high-pressure ball valves currently in use have diamond-coated valve cores, but the problem is that they get damaged at the moment they are opened or closed.
Silicon nitride or silicon carbide ceramics; graphite has been tried for seals. These operating conditions involve temperature, pressure, and wear – it’s quite challenging, and the cost of valves in such conditions is also high
Ceramics is indeed one of the better choices
Thank you, which one is better for ceramic ball valves?
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Original poster, please leave your contact information. If you have time, we can learn from each other regarding the current operating conditions – we can exchange ideas on how to handle them. I work in valve maintenance; let’s share our technical knowledge. 17608001553
Original poster, I work in valve maintenance and have some knowledge of valves. I’m quite interested in your current operating conditions; I think we could learn from each other. Do you think it would be possible to exchange contact information so that we can communicate with each other?
In fact, the damage that occurs to the switch in a 270-degree operating condition is due to the design of the existing ball valves; such issues arise when there are tiny particles between the valve seat and the ball. Additionally, temperatures of 270 degrees cause thermal expansion in the valve itself. The design of ordinary ball valves requires that the thermal expansion coefficients of different materials within the valve chamber be similar, otherwise damage is likely to occur at high temperatures. It is recommended to use ball valves with a hemispherical eccentric structure or those with an inclined valve seat.