规范-常用法兰规格尺寸表

1常用法兰规格尺寸表国标、美标、日标GB9119，288GB9119，288IN公称通径10KG10MPA公称通径16KG16MPA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3/8DN10506014414DN109060144141/2DN159565144143/4DN201057514416DN2010575144161DN251158514416DN25115851441611/4DN3214010018418DN321401001841811/2DN4015011018418DN40150110184182DN5016512518420DN501651251842021/2DN6518514518420DN65185145184203DN8020016018820DN802001601882031/2DN10022018018822DN100220180188224DN12525021018822DN125250210188225DN15028524022824DN150285240228246DN20034029522824DN200340295228268DN250395350221226DN25040535526122910DN300445400221228DN30046041026123212DN350505460221630DN35052047026163514DN400565515261632DN40058052530163816DN450615565262035DN45064058530204218DN500670620262038DN50071565033204620DN600780725262042DN60084077036205224JIS标准JIS标准JIS标准IN公称通径10KG10MPA公称通径16KG16MPA公称通径20KG20MPA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法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN4014010519416DN4014010519416DN40140105194182DN5015512019416DN5015512019816DN501551201981821/2DN6517514019418DN6517514019818DN65175140198203DN8018515019818DN80200,16022820DN802001602382231/2DN9019516019818DN9021017022820DN90210170238244DN10021017519818DN10022518522822DN100225185238245DN12525021023820DN12527022525822DN1252702252582626DN15028024023822DN150305260251224DN1503052602512288DN200330290231222DN200350305251226DN20035030525123010DN250400355251224DN250430380291228DN25043038029123412DN300445400251624DN300480430291630DN30048043029163614DN350490445251626DN350540480321634DN35054048033164016DN400560510271628DN400605540351638DN40060554033164618DN450DN450DN45020DN500DN500DN50024DN600DN600DN600ANSI标准125型ANSI标准150型ANSI标准300型IN公称通径10KG10MPA公称通径16KG16MPA公称通径20KG20MPA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法兰外径螺栓孔距螺栓直径螺栓孔数法兰厚度3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN40127985164143DN40127985164175DN401561145194182DN501521205194159DN501521215194191DN501651272281821/2DN651781395194175DN651781395194223DN65190149228203DN801901525194191DN801901525194239DN80210168228224DN1002291905198239DN1002291905198239DN100254200228245DN1252542165228239DN1252542165228239DN125279235228266DN1502792415228254DN1502792415228254DN1503182702212288DN2003432985228286DN2003432985228286DN20038133025123010DN25040636252512302DN25040636252512302DN250444387529163412DN3004834322512318DN3004834322512318DN30052145132163614DN3505334765291235DN3505334765291235DN350584514532204016DN40059753952916366DN40059753952916366DN400648571535204618DN450DN450DN45020DN500DN500DN50024DN600DN600DN6003国标GB9112913188管法兰连接尺寸表公称通径DNMM公称压力PNMPABAR02525/0661010161625252020DKNLDKNLDKNLDKNLDKNL4013010041415011041815011041815011041813098541650140110165125165125165125150120520651601301851451851451851458180139580190150182001608200160820016019015251002101702201802201802351902223019058125240200825021025021027022026255216221502652252852402228524022300250280241520032028034029534029512360310123452985250375335123953501240535526425370304053621226300440395224454004604104854301648543235049044550546016520470165554903353547030400540495165655152658052530620550366005401645059555061556520640585206706002063557833500645600206706207156503373066070063520600755705267807253084077036845770398157495367008608102489584024910840249608752442/80097592030101595033102595039108599048900107510201115105028112510502811851090281000117511202812301160361255117042132012105612001375140513201340323033145513803239148513903248153014203214001575163015201560363036167515903642168515903617551640366216001790183017301760401915182040481930182040561975186040代号D法兰外径MM；N螺栓孔个数D1法兰螺栓孔中心圆直径MMD螺栓孔直径MM4国标GB9112913188管法兰连接尺寸表公称通径DNMM公称压力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代号D法兰外径MM；N螺栓孔个数D1法兰螺栓孔中心圆直径MMD螺栓孔直径MM国标标准法兰尺寸对照表PN16MPA的尺寸口径DNABCEHD螺栓50160125100316184M16565180145120318184M1680195160135320188M16100215180155320188M16125245210185322188M16150280240210324238M202003352952653262312M202504053553203302512M223004604103754302512M223505204704354342516M224005805254854363016M274506405855454403020M275007056506084443420M306008407707185484124M367009108407885504124M3680010209508985524124M36900112010509985544128M3610001255117011105564828M42PN25MPA的尺寸口径DNABCEHD螺栓50160125100320184M1665180145120322188M1680195160135322188M16100230190160324238M20125270220188328258M22150300250218330258M222003603102783342512M222504253703323363012M273004854303904403012M273505504904484443416M304006105505054483416M304506606005554503420M305007306606104524120M366008407707185564120M367009558758155604824M4280010709909305644824M429001180109010255665428M4810001305121011405685828M52PN40MPA的尺寸口径DNABCGEFHD螺栓50160125100883420184M16651801451201103422184M16801951601351213422188M1610023019016015034524238M20612527022018817534528258M2215030025021820434530258M22200375320282260345383012M27250445385345313345423412M30300510450408364445463416M3035057051046542245523416M3040065558553547445584116M3645068061056052445604120M3650075567061257645624820M4260089079573067856625420M4870099590082576856685424M488001135103096087656765824M52PN64MPA的尺寸口径DNABCGEFHD螺栓50175135105883426234M20652001601301103428234M20802101701401213430238M2010025020016815034532258M2212529524020217534536308M2715034028024020434538348M30200405345300260345443412M30250470400352313345484112M36300530460412364445544116M3635059552547542245604116M3640067058552547445664816M4250080070564057645705420M4860093082075067856765820M52PN100MPA的尺寸口径DNABCGEFHD螺栓501951451128581228254M226522017013811081232258M228023018014811581234258M2210026521017214581238308M2712531025021017581242348M30150350290250205812463412M30200430360312265812544112M36250500430382320812604112M36300585500442375812704816M423506555604984201112765416M484007156205584801117805416M48PN160MPA尺寸口径DNABCGEFHD螺栓7502151651329581236258M226524519015211081244308M278026020516813081246308M2710030024020016081248348M3012535528523819081260418M361503903182702051014664112M362004804003452751117784812M42250580485425330111788国标钢制管法兰制造标准法兰类型密封面形式公称压力/MPA公称通径管子外径所属体系标准编号整体法兰平面、突面、凹凸面、榫槽面PN06、PN10、PN16、PN25、PN40、PN63、PN100、PN160DN10DN2000英制系列和米制系列欧洲体系GB/T91131GB/T911342000平面、突面、凹凸面、榫槽面、环连接面PN20、PN50、PN110、PN150、PN260、PN420DN15DN600英制系列美洲体系螺纹法兰突面PN06、PN10、PN16、PN25、PN40DN10DN150英制系列欧洲体系GB/T91142000突面PN20、PN50、PN110、PN150DN15DN600英制系列美洲体系对焊法兰平面、突面、凹凸面、榫槽面PN025、PN06、PN10、PN16、PN25、PN40、PN63、PN100、PN160DN10DN3000英制系列和米制系列欧洲体系GB/T91151GB/T911542000平面、突面、凹凸面、榫槽面、环连接面PN20、PN50、PN110、PN150、PN260、PN420DN15DN600英制系列美洲体系带颈平焊法兰平面、突面、凹凸面、榫槽面PN06、PN10、PN16、PN25、PN40DN10DN600英制系列和米制系列欧洲体系GB/T91161GB/T911642000平面、突面、凹凸面、榫槽面、环连接面PN20、PN50、PN110、PN150、PN260DN15DN600英制系列美洲体系带颈承插焊法兰突面、凹凸面、榫槽面、环连接面PN20、PN50、PN110、PN150、PN260DN15DN80英制系列美洲体系GB/T91171GB/T9117420008对焊环带颈松套法兰突面、环连接面PN20、PN50、PN110、PN150、PN260、PN420DN15DN600英制系列美洲体系GB/T91181GB/T911822000板式平焊法兰平面、突面PN025、PN06、PN10、PN16、PN25、PN40、DN10DN2000英制系列和米制系列欧洲体系GB/T91192000对焊环板式松套法兰突面、凹凸面、榫槽面PN10、PN16、PN25、PN40、DN10DN600英制系列和米制系列欧洲体系GB/T91201GB/T912032000平焊环板式松套法兰突面、凹凸面、榫槽面PN06、PN10、PN16、PN25、PN40DN10DN600英制系列和米制系列欧洲体系GB/T91211GB/T912132000翻边环板式松套法兰突面PN06、PN10DN10DN300英制系列和米制系列欧洲体系GB/T91222000法兰盖平面、突面、凹凸面、榫槽面PN025、PN06、PN10、PN16、PN25、PN40、PN63、PN100、PN160DN10DN2000欧洲体系GB/T91231GB/T912342000平面、突面、凹凸面、榫槽面、环连接面PN20、PN50、PN110、PN150、PN260、PN420DN15DN600美洲体系国标钢制管法兰检验标准GB/T91242000国标真空法兰标准（2）图1固定法兰表1固定法兰尺寸（MM）公称通径FBHEMJS16CH13X螺栓DN101612217240455560303588666606066644920253240506380100125160200250320400500630800100012501600180020002222623424125227083102127153213261318400501651800100012501600180020005055708090110125145175200260310395480580720890109014041755194022056570901001101301451652002252853354255106107509201120144017901980224540455565759511013015518024029037045055069086010601340170519202140888121212121216161616202020242424283032326666999999111111111414141414141919242406061111111111222222252525256688888810101010121212121212161620204444448888121212161620243232323232见342。10图2卡钳法兰表2卡钳法兰尺寸（MM）公称通径FLJS16PH14RB10SH11UWH1110162025324050638010012516020025032012217222226234241252270831021271532132613186666610101010101010101015333335555555557511111151515151525252525253035404555657595110130155180240290370152025304050608095115140165225275355283338435362729210712715017523528536511400500630400501651151520757510445450550690435535660442542680见342。见37。图3活套法兰表3活套法兰尺寸MM公称通径BHTH11VH14MJS16QRB10KCH13X螺栓DN101620253240504045505570809055606570901001103013514014515556557553213714214715756857858888812123333355551111115152222233666666669990606060611166668884444444126380100125160200250320400500630110125145175200260310395480580720130145165200225285335425510610750955110513051557180724072907370845085508691985113513351607185724572957375845885588701121212161616162020202455555565656565851010121515152525252525445333555558810999111111111414141411111112222888101010101212121248888121212161620卡环直径K建议用下列公差K2MM为002MM；K3MM5MM为0025MM；K8MM10MM为0030MM。附录A（规范性附录）法兰线密封载荷在下列使用条件下，法兰的线密封载荷为值（见图A1和表A1）。式中N个螺栓以200N/MM2应力均布施压在胶圈上的线密封载荷,N/MM；N螺栓数目；S螺栓截面面积MM2；D1密封圈内径MM；D2密封圈压缩前截面直径MM。图A1一个螺栓与O形圈组合13表A1法兰线密封载荷及对应O形圈公称通径MM常用值N/MM采用O形圈GB/T34521公称通径MM常用值N/MM采用O形圈GB/T34521101620253240506380100125在GB/T345212005液压气动用O形橡胶密封圈第1部分尺寸系列及公差中没有此规格，该尺寸作为参考。该值作为指导用，根据所选用密封圈而不同。28700221171743814767214281850614807112261936915845204101695215182018252653026538526545265563557535587535510653132531605320025032040050063080010001250160018002000188241555118531194771563415320149831604924097188912625223655218532655332553412751576588869981071010712601016101018101220101214160附录B（规范性附录）真空法兰内径及所需接管外径此附录给出了真空法兰的内径及所需接管外径。图B1真空法兰与接管表B1真空法兰内径、接管外径及管壁厚度（MM）公称通径A1016202532405063801001251602002503204005006301221722222623424125227083102127153213261318400501651162025303845577689108133159219267325406509660222222333333333345158001000125016001800200080010001250160018002000812101612741628183220366812141618D0，T0数值取自GB/T173951998无缝钢管尺寸、外形、重量及允许偏差，作为指导用。在GB/T173951998中没有此规格，该尺寸作为参考。附录C（资料性附录）本标准章条编号与ISO16091986（E）章条编号对照表C1给出了本标准章条编号与ISO16091986（E）章条编号对照一览表。表C1本标准章条编号与ISO16091986（E）章条编号对照本标准章条编号对应的ISO16091986（E）章条编号3133233243434353413513423523533635373638373938表A1表4图A1图4表B1表5、表6、表7图B1图5、图6附录C附录D16附录D（资料性附录）本标准与ISO16091986（E）技术性差异及其原因表D1给出了本标准与ISO16091986（E）的技术性差异及其原因的一览表。表D1本标准与ISO16091986（E）技术性差异及其原因本标准的章条编号技术性差异原因2在“规范性引用文件”一章中直接写入引用的国家标准,并增加了GB/T345212005，而ISO16091986（E）中的参考材料内容毫无改变的保留了下来。以适应我国引用标准的规范。增加附录A中的引用文件。3删除了ISO16091986（E）中的313、323、324、34、353和36。这六项内容在表1、表2、表3及图1、图2、图3中已表示清楚。适应我国标准体制和语言习惯，并简化采用国际标准的方法。38增加了38“配合尺寸”。国际标准中，对于配合尺寸的引用标准情况没有做出说明。根据GB/T112000的要求而增加。表1增加了1250、1600、1800、2000规格的法兰各项尺寸。根据我国国情，扩大标准的使用范围。附录A采用GB/T345212005对线密封载荷值重新计算。增加1250、1600、1800、2000规格的线密封载荷值。根据我国国情选用国标GB/T345212005，计算得到值。附录B将表5、表6、表7合并成本标准的表B1。图5、图6合并成本标准的图B1。增加1250、1600、1800、2000规格的真空法兰内径及所需接管外径。简化附录中的图与表的结构，使内容更清楚、方便使用。根据我国国情，选用国标GB/T173951998作为真空接管外径的参考值。附录C作为资料性附录，列出了本标准与ISO16091986（E）条款的对照一览表。根据GB/T2000022001的要求，增加了附录C。附录D作为资料性附录，给出了本标准与ISO16091986（E）技术性差异及其原因的一览表。根据GB/T2000022001的要求，增加了附录D。法兰GB国标标准GB/T9113GB91242000法兰标准GB/T91131GB/T9113261988整体钢制管法兰（16420MPA）GB/T911312整体钢制管法兰（平面）（1620MPA）GB/T911338整体17钢制管法兰（凸面）（1625402050100MPA）GB/T9113915整体钢制管法兰（凹凸面）（16254050100150250MPA）GB/T91131620整体钢制管法兰（榫槽面）（16254050100MPA）GB/T91132126整体钢制管法兰（环连接）（2050100150250420MPA）GB/T91151361988平面对焊钢制管法兰（025420）MPAGB/T911515（平面）对焊钢制管法兰（025；06；10；16；20；MPA）GB/T9115616（凸面）对焊钢制管法兰（025；06；10；16；25；40；20；50；100；150；250；MPA）GB/T91151723（凹凸面）对焊钢制管法兰（16254050100150250MPA）GB/T91152430（榫槽面）对焊钢制管法兰（16254050100150250MPA）GB/T91153136（环连接）对焊钢制管法兰（2050100150250420MPA）GB/T134021992大口径碳钢管法兰法兰規格表字体大小大|中|小200801021613阅读2030评论0尺寸規格外徑內徑厚中心孔大孔數尺寸規格外徑內徑厚中心孔大孔數1/2“5K802259601243“5K180901414519410K95225127015410K185901815019820K95225147015420K2009022160238150P89223112603154150P1909072391524194300P95223143667194300P2109072861683228DIN16952251465154DIN162009020160198水道21190181681843/4“5K852810651244“5K2001161616519810K10028147515410K2101161817519820K