Powder valve
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I am looking for a powder valve suitable for use in conditions where there is alternating operation between high vacuum and atmospheric pressure, at normal temperatures. It is necessary that the valve provides absolute sealing, has minimal wear of its sealing elements, and a long service life
I don’t think so. No machine is omnipotent. It’s a nice wish.
How long is this long service life exactly? I can only say that our company is confident enough to reach the top level in the industry! You can send in a quote request and let me know your specific requirements! Phone: 13289966270
In addition to specifying pressure, temperature, and medium, the installation space, manual/automatic operation, cut-off/regulation, and cost should also be mentioned
Another doubt arises: are zero leakage and absolute sealing the same concept?
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Personally, I don’t think so; zero leakage means that the valve does not leak under specified operating conditions, as defined by various testing standards – it is leakage-free in the sense specified by those standards. But absolute sealing means it won’t leak at all; no matter what happens, it won’t leak!
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Is this operating condition similar to that of pneumatic conveying, resulting in greater wear? First, it is necessary to determine the exact cause of the leakage in the valve; in my opinion, the appropriate valve should be selected based on the operating conditions.
From what I know, hard-sealed ball valves and rotary disc valves are currently used for coal powder transportation; I’m not sure what the differences are compared to the operating conditions you mentioned