What process requirements must high-temperature butterfly valves meet?
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I recently learned about three types of high-temperature valves produced by Leili Valves: fully metal valves, those lined with fiber cotton for heat resistance, and those made from cast materials for heat resistance. I would like to know whether these three different manufacturing processes meet the requirements necessary for high-temperature valves. What are exactly the requirements that high-temperature valves must satisfy?
This post was last edited by Wang Xu 18295531788 on 2020-4-9 at 12:31. It depends on your specific process requirements – for example, if you need a butterfly valve that can operate at temperatures above 500 degrees and also meets API598 leakage standards, I’m sorry, but this cannot be done in China. Generally, graphite-laminated sealing rings cannot be used at temperatures above 300 degrees.
The temperature in contact is usually around seven or eight hundred degrees
For temperatures of 700 to 800 degrees, it is necessary to use cooling techniques around the valves. Currently, valve materials that can withstand temperatures above 600 degrees are difficult to use; austenitic stainless steels such as 316H, 304H, and 347H, which are used in high-temperature applications, can only handle temperatures around 500 degrees
I visited many valve manufacturers; some of them use casting materials that are said to be able to withstand temperatures over 1,000 degrees
You can come to our factory to take a look at the Spanish TTV valves; Cao Yuhui, 15956378939
It’s filled with cement; the sealing at over 700 degrees should be made of F304H. However, leakage cannot be guaranteed in that case. There might be other materials available, such as Hastelloy or similar
For butterfly valves that require high temperatures, feel free to reach out to me. Jiangnan Valves specializes in nuclear and military applications; my contact number is 18312921937
Hello, I work in the field of high-temperature gaskets and fillers. I’d be interested in discussing this further.