英制公制尺寸转换.doc

《英制公制尺寸转换.doc》由会员分享，可在线阅读，更多相关《英制公制尺寸转换.doc（5页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、外径与DN，NB的关系如下：公称管子尺寸(NPS)/in0.250.50.751.01.251.52.02.53.04.06.0公称直径(DN)/mm61520253240506580100150公称管子尺寸(NPS)/in8.010.012.014.016.018.020.024.036.042.048.0公称直径(DN)/mm20025030035040045050060090010001200管子规格及有关数据公称直径英 寸外 径近似内径壁 厚相当于无缝管普厚/加厚mmmmmmmmmm154分21.25152.75/3.2522206分26.75202.75/3.525251寸33.52

2、53.25/432321.2寸42.25323.25/438401.5寸48403.5/4.2545502寸60503.5/4.557702.5寸75.5703.75/4.57680388.5804/4.758910041141064/5.010812551401315/5.513315061651565/5.5159200821920762192501027325972733001232530984353501437794854001642695354501847895905002052996406002463010755700287201086080032820975国际管道尺寸对照表N.

3、DINCHSTANDARDMETRICINCHCOPPERPVCPEDUCTILE15A1/221.72021.5-22.02220A3/427.2/28.52627.0-27.62625A134.03028.24303234.0-34.73432A1-1/442.73834.59353842.0-42.84840A1-1/248.644.540.95454848.0-48.96050A260.657.054.05556060.0-61.17665A2-1/276.376.166.75707676.0-77.38980A389.188.979.85858989.0-90.59890A3-1/2

4、101.6100A4114.3108.0106.27110114114.0-115.9118125A5139.8133.0131.67140140140.0-142.3144150A6165.2159.0157.68160165165.0-167.6170200A8216.3219.0208.48216216.0-218.8222250A10267.4267.0260.50267267.0-270.1274300A12318.5323.9312.11318318.0-321.3326350A14355.6368.0363.72378400A16406.4419.0414.52429450A18457.2457.2465.32480500A20508.0508.0516.94532550A22558.8558.0567.74600A24609.6619.0619.35635650A26660.4700A28711.2第 5 页