管道公稱直徑與外徑對照表
DN-公稱直徑 |
Φ-外徑 |
|
大外徑系列 |
小外徑系列 |
|
DN15 |
Φ22mm |
Φ18mm |
DN20 |
Φ27mm |
Φ25mm |
DN25 |
Φ34mm |
Φ32mm |
DN32 |
Φ42mm |
Φ38mm |
DN40 |
Φ48mm |
Φ45mm |
DN50 |
Φ60mm |
Φ57mm |
DN65 |
Φ76（73）mm |
Φ73mm |
DN80 |
Φ89mm |
Φ89mm |
DN100 |
Φ114mm |
Φ108mm |
DN125 |
Φ140mm |
Φ133mm |
DN150 |
Φ168mm |
Φ159mm |
DN200 |
Φ219mm |
Φ219mm |
DN250 |
Φ273mm |
Φ273mm |
DN300 |
Φ324mm |
Φ325mm |
DN350 |
Φ360mm |
Φ377mm |
DN400 |
Φ406mm |
Φ426mm |
DN450 |
Φ457mm |
Φ480mm |
DN500 |
Φ508mm |
Φ530mm |
DN600 |
Φ610mm |
Φ630mm |
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