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selecting seat and disk material for butterfly valves

selecting seat and disk material for butterfly valves

selecting seat and disk material for butterfly valves

(OP)
Hi everybody.
I want to find a detailed table to choose butterfly valves disk and seat according to proccess fluid.
I looked for links about this but couldn't find a detailed one.
Can you help me about material selection for butterfly valves.
Best Regards.
Fatih Tezel

RE: selecting seat and disk material for butterfly valves

Fatih,

At most places that I have worked at, the selection of materials for valves and piping is already in a standard (the piping standard). You need to go get the applicable standard for your site.

There are many published process fluid to material tables available, form manufacturers, academics, etc. But, you still need to follow the standards of your site because, often, there are very different material requirements.

"Do not worry about your problems with mathematics, I assure you mine are far greater."   
Albert Einstein
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RE: selecting seat and disk material for butterfly valves

fatihtezel,
    are you are designing or buying butterfly valves, if I my ask?

    Whenever particular, corrosive, erosive and/or dangerous fluids are involved, the valve Manufacturers are able to configure the best materials selection (bill of materials) for the specific service condition, also based on the type of valve and their experience with it.

    According to Ashereng’s tip, the site specifications are also useful information (they may tell, for example, whether the design philosophy privileges the valve service life extension or the initial investment costs reduction…).
    In fact in many cases, for a given service more of one selection may be possible…

Regards,       'NGL

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