法兰规格尺寸表

常用法兰规格尺寸(国标、美标、日标)?GB9119，2—88GB9119，2—88in公称通径10kg=1.0MPa公称通径16kg=1.6MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10506014414DN109060144141/2DN15596514414DN159565144143/4DN201057514416DN2010575144161DN251158514416DN25115851441611/4DN3214010018418DN321401001841811/2DN4015011018418DN40150110184182DN5016512518420DN501651251842021/2DN6518514518420DN65185145184203DN8020016018820DN802001601882031/2DN10022018018822DN100220180188224DN12525021018822DN125250210188225DN15028524022824DN150285240228246DN20034029522824DN200340295228268DN250395350221226DN25040535526122910DN300445400221228DN30046041026123212DN350505460221630DN35052047026163514DN400565515261632DN40058052530163816DN450615565262035DN45064058530204218DN500670620262038DN50071565033204620DN600780725262042DN60084077036205224JIS标准JIS标准in公称通径10kg=1.0MPa公称通径16kg=1.6MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10DN101/2DN15DN153/4DN20DN201DN25DN2511/4DN32DN3211/2DN4014010519416DN40140105194162DN5015512019416DN501551201981621/2DN6517514019418DN65175140198183DN8018515019818DN80200,1602282031/2DN9019516019818DN90210170228204DN10021017519818DN100225185228225DN12525021023820DN125270225258226DN15028024023822DN1503052602512248DN200330290231222DN20035030525122610DN250400355251224DN25043038029122812DN300445400251624DN30048043029163014DN350490445251626DN35054048032163416DN400560510271628DN40060554035163818DN450DN45020DN500DN50024DN600DN600ANSI标准125型ANSI标准150型in公称通径10kg=1.0MPa公称通径16kg=1.6MPa法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10DN101/2DN15DN153/4DN20DN201DN25DN2511/4DN32DN3211/2DN4012798.516414.3DN4012798.516417.52DN50152120.519415.9DN50152121.519419.121/2DN65178139.519417.5DN65178139.519422.33DN80190152.519419.1DN80190152.519423.94DN100229190.519823.9DN100229190.519823.95DN125254216.522823.9DN125254216.522823.96DN150279241.522825.4DN150279241.522825.48DN200343298.522828.6DN200343298.522828.610DN250406362.5251230.2DN250406362.5251230.212DN300483432251231.8DN300483432251231.814DN350533476.5291235DN350533476.529123516DN400597539.5291636.6DN400597539.5291636.618DN450DN45020DN500DN50024DN600DN600HYPERLINK\t"_blank"法兰PL是HYPERLINK\t"_blank"板式平焊法兰　　板式平焊法兰(PL)：　　平焊法兰适用于HYPERLINK&ie=utf-8&src=internal_wenda_recommend_textn"\t"_blank"公称压力不超过2.5MPa的钢HYPERLINK\t"_blank"管道连接.平焊法兰的密封面可以制成光滑式，凹凸式和HYPERLINKB%E6%A7%BD&ie=utf-8&src=internal_wenda_recommend_textn"\t"_blank"榫槽式三种.光滑式平焊法兰的应用量最大.多用于HYPERLINK\t"_blank"介质条件比较缓和的情况下，如HYPERLINKE4%BD%8E%E5%8E%8B&ie=utf-8&src=internal_wenda_recommend_textn"\t"_blank"低压非净化HYPERLINK\t"_blank"压缩空气、低压HYPERLINK\t"_blank"循环水。　　法兰分类：　　1、按HYPERLINK\t"_blank"化工(HG)行业标准分：整体法兰(IF)、HYPERLINK\t"_blank"螺纹法兰(Th)、板式平焊法兰(PL)、带颈HYPERLINK\t"_blank"对焊法兰(WN)、HYPERLINK\t"_blank"带颈平焊法兰(SO)、HYPERLINK\t"_blank"承插焊法兰(SW)、HYPERLINK\t"_blank"对焊环松套法兰(PJ/SE)、HYPERLINK\t"_blank"平焊环松套法兰(PJ/RJ)、HYPERLINK\t"_blank"衬里HYPERLINK\t"_blank"法兰盖(BL(S))、法兰盖(BL)。　　2、按石化(SH)行业标准分：螺纹法兰(PT)、对焊法兰(WN)、平焊法兰(SO)、承插焊法兰(SW)、松套法兰(LJ)、法兰盖(不表注)。　　3、按HYPERLINK\t"_blank"机械(JB)行业标准分：整体法兰、对焊法兰、板式平焊法兰、对焊环板式松套法兰、平焊环板式松套法兰、翻边环板式松套法兰、法兰盖。　　4、按国家(GB)标准分：整体法兰、螺纹法兰、对焊法兰、带颈平焊法兰、带颈承插焊法兰、对焊环带颈松套法兰、板式平焊法兰、对焊环板式松套法兰、平焊环板式松套法兰、翻边环板式松套法兰、法兰盖。