sys8888
No offense meant.
If you do not normally purchase valves for your company, might I suggest you talk to the person (probably someone in I&C) who normally does.
There are many valve manufacturers out there, and most are good. But that is not the point. Chances are, your plant already has a type of low temp plug valve that they "standardise" on, or have in place a SOC (supplier of choice) where they get discounts. The valve you describe is nothing extraordinary. It should be easily obtainable.
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
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