What type of valve should be chosen for small-diameter ball valves (under DN50)?
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This post was last edited by security on 2011-8-1 09:02. For small-diameter ball valves (under DN50), what type of valve do people usually choose: flanged ball valves, threaded ball valves, or welded ball valves?
Flanged ball valve! ~~~~~~~~~~~~~~~~~~~
It depends on your actual needs. If you want a lower price, go with threaded and welded types. Flanges are more expensive, but they are easier to install.
It depends on the process; flanges or threads can both be used. If sealing is a concern, flanges should be preferred; otherwise, threads can be used