Lead pipe - Enkan (English spelling)
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Lead pipes. Flexible and easy to join, they are used for water pipes, gas pipes, drainage pipes, etc. They are classified according to their use as Class 1 (chemical industry), Class 2 (general), and Class 3 (gas). They are corroded by alkali, so the parts buried in concrete must be covered. There are also slightly harder lead pipes made of alloys containing antimony. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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鉛のパイプ。柔軟で接合が容易なことから水道管，ガス管，排水管などに用いる。用途分別類として1種 (化学工業) ，2種 (一般) ，3種 (ガス) に分けられる。アルカリに浸食されるので，コンクリート埋設部分は被覆が必要である。アンチモンなどを加えた合金のやや硬い鉛管もある。
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