フランジの意味を教えて
Thread Content
ANSI 150 LB 3 ??
アメリカ**協会規格 3インチ150ポンド
米国規格フランジ、20キログラム圧力
アメリカ規格において、バルブ本体の公称直径3インチはDN80に相当し、公称圧力は150ポンドで、これは20kgf/cm3に相当します
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