概述：主要连接尺寸（国标） 公称通径DN（mm）标准值参考值LDD1D2bfZ-φdHD0PM1.6（MPA）/PN2.5（MPa）25216115856514/1624-φ14343200322161401007816/1824-φ18360200402161501108516/1834-φ183782005021616512510016/2034-φ183802006529018514512018/2234-φ18/8-φ183903008031020016013520/2238-φ18400300100350220/230180/190155/16020/2438-φ18/8-φ23508300150480285/300240/250210/21824/3038-φ23/8-φ26690400200600340/360295/310265/27826/34312-φ23/12-φ26780500250730405/425355/370320/33230/36312-φ26/12-φ30990600300850460/485410/430375/39030/40412-φ26/16-φ301180600350980520-555470/490435/44834/44416-φ26/16-φ3412506504001100580/620525/550485/50536/48416-φ30/16-φ3615606504501200640/670585/600545/55540/50420-φ30/20-φ3616307005001250715/730650/660608/61044/52420-φ34/20-φ3617007006001450840/84577071848/56520-φ36/24-φ4118808007001650910/960840/875788/81550/60524-φ36/24-φ42210080080018501025/1085950/990898/93052/64524-φ41/24-φ48221080090020501125/11851050/1090988/102554/66528-φ41/28-φ482320800100022501255/13201170/12101110/114056/68528-φ42/28-φ582430800·主要连接尺寸（国标）公称通径DN（mm）标准值参考值LDD1D2D6bff1Z-φdHD0PM4.0（MPa）2521611585655816244-φ1434320032216140100786618244-φ1836020040216150110857618344-φ18378200502161651251008820344-φ183802006529018514512011022348-φ183903008031020016013512122348-φ184003001003502351901601502434.58-φ235083001504803002502182043034.58-φ266904002006003753202822603834.512-φ307805002507304503853453134234.512-φ349906003008505154504083644644.516-φ341180600350980580510465422524516-φ3612506504001100660585535474584516-φ4115606504501200685610560524604520-φ4116307005001250755670612576624520-φ4217007006001450890795730676625520-φ4818808007001650990900835778685524-φ482100800800185011401030960883765524-φ582210800·主要连接尺寸（国标）公称通径DN（mm）标准值参考值LDD1D2D6bff1Z-φdHD0PM6.3（MPa）25216140100785822244-φ1834320032216155110826624244-φ2336020040216170125957624344-φ23378200502161801351058826344-φ233802006529020516013011028348-φ233903008031021517014012130348-φ234003001003502502001681503234.58-φ265083001504803452802402043834.58-φ306904002006004053453002604434.512-φ367805002507304704003522874834.512-φ369906003008505304604123645444.516-φ361180600350980600525475422604516-φ4112506504001100670585525474664516-φ4215606505001250800705640576704520-φ4817007006001450930820750676765620-φ581880800