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バルブの型番「寸」と公称直径はどうやって換算するのか

2016-08-28View Original

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例えば、4インチはDN100で、3インチはDN80ですが、どのように計算するのでしょうか
Reply #22016-08-28
バルブのサイズ「インチ」はインチで、1インチは25.4mmです。
Reply #32016-08-28
バルブの1インチ=25mm、インチ×25=DN(切り上げ)
Reply #42016-08-28
インチで表される公称直径とmmで表される公称直径の間には直接的な換算関係はなく、基準が異なります。

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