常用法兰规格尺寸表

经常使用法兰规格尺寸表(国标、美标、日标)宇文皓月GB9119，2—88GB9119，2—88公称通10kg=1.0MPa公称通16kg=1.6MPain法兰螺栓螺栓螺栓孔法兰法兰螺栓螺栓直螺栓径径法兰厚度外径孔距直径数厚度外径孔距径孔数3/8DN10506014414DN10906014414㎡㎏1/2DN159565144143/4DN201057514416DN2010575144161DN251158514416DN25115851441611/4DN3214010018418DN321401001841811/2DN4015011018418DN40150110184182DN5016512518420DN501651251842021/2DN6518514518420DN65185145184203DN8020016018820DN802001601882031/2DN10022018018822DN100220180188224DN12525021018822DN125250210188225DN15028524022824DN150285240228246DN20034029522824DN200340295228268DN250395350221226DN25040535526122910DN300445400221228DN30046041026123212DN350505460221630DN35052047026163514DN400565515261632DN40058052530163816DN450615565262035DN45064058530204218DN500670620262038DN50071565033204620DN600780725262042DN60084077036205224JIS尺度JIS尺度JIS尺度10kg=1.0MPa16kg=1.6MPa20kg=2.0MPain公称通公称通公称通螺螺法兰螺栓螺栓螺栓孔法兰法兰螺栓螺栓直螺栓法兰螺栓栓栓径径法兰厚度径法兰厚度外径孔距直径数厚度外径孔距径孔数外径孔距直孔径数3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN4014010519416DN4014010519416DN40140105194182DN5015512019416DN5015512019816DN501551201981821/2DN6517514019418DN6517514019818DN65175140198203DN8018515019818DN80200,16022820DN802001602382231/2DN9019516019818DN9021017022820DN90210170238244DN10021017519818DN10022518522822DN100225185238245DN12525021023820DN12527022525822DN125270225258266DN15028024023822DN150305260251224DN1503052602512288DN200330290231222DN200350305251226DN20035030525123010DN250400355251224DN250430380291228DN25043038029123412DN300445400251624DN300480430291630DN30048043029163614DN350490445251626DN350540480321634DN35054048033164016DN400560510271628DN400605540351638DN40060554033164618DN450DN450DN45020DN500DN500DN50024DN600DN600DN600ANSI尺度125型ANSI尺度150型ANSI尺度300型10kg=1.0MPa16kg=1.6MPa20kg=2.0MPain公称通公称通公称通螺螺径法兰螺栓螺栓螺栓孔法兰径法兰螺栓螺栓直螺栓法兰厚度径法兰螺栓栓栓法兰厚度外径孔距直径数厚度外径孔距径孔数外径孔距直孔径数3/8DN10DN10DN101/2DN15DN15DN153/4DN20DN20DN201DN25DN25DN2511/4DN32DN32DN3211/2DN4012798.516414.3DN4012798.516417.5DN40156114.5194182DN50152120.519415.9DN50152121.519419.1DN501651272281821/2DN65178139.519417.5DN65178139.519422.3DN65190149228203DN80190152.519419.1DN80190152.519423.9DN80210168228224DN100229190.519823.9DN100229190.519823.9DN100254200228245DN125254216.522823.9DN125254216.522823.9DN125279235228266DN150279241.522825.4DN150279241.522825.4DN1503182702212288DN200343298.522828.6DN200343298.522828.6DN20038133025123010DN250406362.5251230.2DN250406362.5251230.2DN250444387.529163412DN300483432251231.8DN300483432251231.8DN30052145132163614DN350533476.5291235DN350533476.5291235DN350584514.532204016DN400597539.5291636.6DN400597539.5291636.6DN400648571.535204618DN450DN450DN45020DN500DN500DN50024DN600DN600DN600国标(GB9112—9131—88)管法兰连接尺寸表公称通公称压力PNMPa(bar)径DNmm0.25(2.5)/0.6(6)1.0(10)1.6(16)2.5(25)2.0(20)DKnLDKnLDKnLDKnLDKnL40130100150110150110150110413098．516501401101416512541651254165125150120．5184651601304185145185145185145180139．518182080190150200160200160200160190152．51002101702201802201808235190822230190．51252402002502108250210270220255216188150265225828524028524030025026280241．52222200320280340295340295360310345298．512250375335395350224053551242537040536230044039512224454001246041026485430304854321226350490445505460165204701655549016535470303340054049516565515580525306205506005401645059555061556526640585670600366355783350064560067062020715650203373066020700635202060075570578072584077084577039815749．5263036367008608108958409108409608754224248009759202410159501025950108599024333948900107510203011151050112510501185109028282810001175112028123011601255117042132012103613751320305612003214551380323914851390321530142032140513403348/15751520140036301675159036421685159036175516403616301560621790173036160040191518204048193018204056197518604018301760代号D-法兰外径mm；n-螺栓孔个数D-法兰螺栓孔中心圆直径mmd-螺栓孔直径mm;1国标(GB9112—9131—88)管法兰连接尺寸表公称公称压力PNMPa(bar)通径DNm0.25(2.5)/0.6(6)1.0(10)1.6(16)2.5(25)2.0(20)mDKnLDKnLDKnLDKnLDKnL40130100150110150110150110413098．516501401101416512541651254165125150120．5184651601304185145185145185145180139．518182080190150200160200160200160190152．51002101702201802201808235190822230190．51252402002502108250210270220255216188150265225828524028524030025026280241．52222200320280340295340295360310345298．522122503753353953504053551242537040536212302630044039512445400460410264854304854321235049044550546016520470165554901633535470304005404952256551558052562055060054016301645059555061556526640585670600366355783350064560067062020715650203373066020700635202060075570526780725308407703684577039815749．5367008608108958409108409608754224242480097592024101595010259501085990333948900107510203011151050281125105028118510902810001175112028123011603612551170421320121013751320305612003214551380323914851390321530142032140513403348/15751520140016301560363016751590364216851590361755164036621790173036160040191518204048193018204056197518604018301760D-法兰外径mm；n-代号螺栓孔个数D1-法兰螺栓孔中心圆直径mmd-螺栓孔直径mm;国标尺度法兰尺寸比较表PN1.6MPa的尺寸口径DNABCEHD螺栓50160125100316184-M1665180145120318184-M1680195160135320188-M16100215180155320188-M16125245210185322188-M16150280240210324238-M202003352952653262312-M202504053553203302512-M223004604103754302512-M223505204704354342516-M224005805254854363016-M274506405855454403020-M275007056506084443420-M306008407707185484124-M367009108407885504124-M3680010209508985524124-M36900112010509985544128-M3610001255117011105564828-M42PN2.5MPa的尺寸口径DNABCEHD螺栓50160125100320184-M1665180145120322188-M1680195160135322188-M16100230190160324238-M20125270220188328258-M22150300250218330258-M222003603102783342512-M222504253703323363012-M273004854303904403012-M273505504904484443416-M304006105505054483416-M304506606005554503420-M305007306606104524120-M366008407707185564120-M367009558758155604824-M4280010709909305644824-M429001180109010255665428-M4810001305121011405685828-M52PN4.0MPa的尺寸口径DNABCGEFHD螺栓50160125100883420184-M16651801451201103422184-M16801951601351213422188-M1610023019016015034.524238-M2012527022018817534.528258-M2215030025021820434.530258-M2220037532028226034.5383012-M2725044538534531334.5423412-M3030051045040836444.5463416-M3035057051046542245523416-M3040065558553547445584116-M3645068061056052445604120-M3650075567061257645624820-M4260089079573067856625420-M4870099590082576856685424-M488001135103096087656765824-M52PN6.4MPa的尺寸口径DNABCGEFHD螺栓50175135105883426234-M20652001601301103428234-M20802101701401213430238-M2010025020016815034.532258-M2212529524020217534.536308-M2715034028024020434.538348-M3020040534530026034.5443412-M3025047040035231334.5484112-M3630053046041236444.5544116-M3635059552547542245604116-M3640067058552547445664816-M4250080070564057645705420-M4860093082075067856765820-M52PN10.0MPa的尺寸口径DNABCGEFHD螺栓501951451128581228254-M226522017013811081232258-M228023018014811581234258-M2210026521017214581238308-M2712531025021017581242348-M30150350290250205812463412-M30200430360312265812544112-M36250500430382320812604112-M36300585500442375812704816-M423506555604984201112765416-M484007156205584801117805416-M48PN16.0MPa尺寸口径DNABCGEFHD螺栓502151651329581236258-M226524519015211081244308-M278026020516813081246308-M2710030024020016081248348-M3012535528523819081260418-M361503903182702051014664112-M362004804003452751117784812-M42250580485425330111788国标钢制管法兰制造尺度法兰种类密封面形式平面、突面、凹凸面、榫槽面整体法兰平面、突面、凹凸面、榫槽面、环连接面突面螺纹法兰突面平面、突面、凹凸面、榫槽面对焊法兰平面、突面、凹凸面、榫槽面、环连接面平面、突面、凹凸面、榫槽面带颈平焊法兰平面、突面、凹凸面、榫槽面、环连接面带颈承插焊法突面、凹凸面、榫兰槽面、环连接面对焊环带颈松突面、环连接面套法兰板式平焊法兰平面、突面

公称压力/MpaPN0.6、PN1.0、PN1.6、PN2.5、PN4.0、PN6.3、PN10.0、PN16.0PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0PN0.6、PN1.0、PN1.6、PN2.5、PN4.0PN2.0、PN5.0、PN11.0、PN15.0PN0.25、PN0.6、PN1.0、PN1.6、PN2.5、PN4.0、PN6.3、PN10.0、PN16.0PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0PN0.6、PN1.0、PN1.6、PN2.5、PN4.0PN2.0、PN5.0、PN11.0、PN15.0、PN26.0PN2.0、PN5.0、PN11.0、PN15.0、PN26.0PN2.0、PN5.0、PN11.0、PN15.0、PN26.0、PN42.0PN0.25、PN0.6、PN1.0、PN1.6、PN2.5、PN4.0、

公称通径管子外径所属系统尺度编号英制系列和米制系DN10～DN2000欧洲系统列GB/T9113.1～GB/T9113.4-2000DN15～DN600英制系列美洲系统DN10～DN150英制系列欧洲系统GB/T9114-2000DN15～DN600英制系列美洲系统英制系列和米制系DN10～DN3000欧洲系统列GB/T9115.1～GB/T9115.4-2000DN15～DN600英制系列美洲系统英制系列和米制系DN10～DN600欧洲系统列GB/T9116.1～GB/T9116.4-2000DN15～DN600英制系列美洲系统DN15～DN80英制系列美洲系统GB/T9117.1～GB/T9117.4-2000DN15～DN600英制系列美洲系统GB/T9118.1～GB/T9118.2-2000英制系列和米制系DN10～DN2000欧洲系统GB/T9119-2000列对焊环板式松突面、凹凸面、榫PN1.0、PN1.6、DN10～DN600英制系列和米制系GB/T9120.1～GB/T9120.3-2000PN2.5、PN4.0、欧洲系统套法兰槽面列平焊环板式松突面、凹凸面、榫PN0.6、PN1.0、DN10～DN600英制系列和米制系GB/T9121.1～GB/T9121.3-2000PN1.6、PN2.5、PN4.0欧洲系统套法兰槽面列翻边环板式松PN0.6、PN1.0DN10～DN300英制系列和米制系GB/T9122-2000突面欧洲系统套法兰列PN0.25、PN0.6、平面、突面、凹凸PN1.0、PN1.6、DN10～DN2000面、榫槽面PN2.5、PN4.0、欧洲系统法兰盖PN6.3、PN10.0、GB/T9123.1～GB/T9123.4-2000PN16.0平面、突面、凹凸PN2.0、PN5.0、面、榫槽面、环连PN11.0、PN15.0、DN15～DN600美洲系统接面PN26.0、PN42.0国标钢制管法兰检验尺度:GB/T9124-2000国标真空法兰尺度（2）图1固定法兰表1固定法兰尺寸（mm）公称通径F*BHE*MCX螺栓Dnjs16H131012.240553086.60.6641617.245603586.60.6642022.250654086.60.6642526.255704586.60.6643234.2709055891844041.280100651291845052.2901107512918463701101309512918480831251451101291881001021451651301291881251271752001551611110816015320022518016111108200213260285240161111012250261310335290161111012320318395425370201421212400400480510450201421216500501580610550201421216630651720750690241421220800800890920860241421224100010001090112010602414212321250125014041440134028192.516321600160017551790170530192.516321800180019401980192032242.520322000200022052245214032242.52032*见3.4.2。图2卡钳法兰表2卡钳法兰尺寸（mm）公称通径F*LPrS*UWjs16H14B10h11h111012.26313015281617.26313520332022.26314025382526.26314530433234.26315540534041.21051.56550625052.21051.575607263701051.595809280831051.5110951071001021051.51301151271251271052.51551401501601531052.51801651752002131052.52402252352502611052.5290275285320318157.52.5370355365400400157.54450435442500501157.5455053554263065120105690660680*见3.4.2。见3.7。图3活套法兰表3活套法兰尺寸(mm)公称通径BHTVMQrK*CX螺栓DnH11H14js16B10H1310405530.132.183126.60.66416456035.137.183126.60.66420506540.142.183126.60.66425557045.147.183126.60.66432709055.557568.5125.51.539184509011075.578.5125.51.5391846311013095.598.5125.51.53918480125145110.5113.5125.51.539188100145165130.5133.5125.51.539188125175200155.7160.7166.52.55111108160200225180.7185.7166.52.55111108200260285240.7245.7166.52.551111012250310335290.7295.7166.52.551111012320395425370.8375.8208.52.551421212400480510450.8458.82010481421216500580610550.8558.8201048142121663072075069170124125101421220卡环直径K建议用以下公差：K=2mm为±0.02mm；K=3mm～5mm为±0.025mm；K=8mm～10mm为±0.030mm。附录A（规范性附录）法兰线密封载荷在以下使用条件下，法兰的线密封载荷为δ值（见图A.1和表A.1）。2,N/mm；式中：δ——n个螺栓以200N/mm应力均布施压在胶圈上的线密封载荷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A.1一个螺栓与O形圈组合表A.1法兰线密封载荷及对应O形圈公称通径δ经常使用值采用O形圈公称通径δ经常使用值采用O形圈mmN/mmGB/T3452.1mmN/mmGB/T3452.110287.0015×1.8200188.24218×5.316221.1720×1.8250155.51265×5.320174.3825×2.65320185.31325×5.325147.6730×2.65400194.77412×732214.2838.5×2.65500156.34515×740185.0645×2.65630153.20658.88×6.99*50148.0756×3.55800149.83810×7*63112.2675×3.551000160.491010×7*80193.6987.5×3.551250240.971260×10*100158.45106×5.31600188.911610×10*125204.10132×5.31800262.521810×12**在GB/T169.52160×5.32000236.552010×12*3452.1-2005《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，依照所采用密封圈而分歧。160附录B（规范性附录）真空法兰内径及所需接收外径此附录给出了真空法兰的内径及所需接收外径。图B.1真空法兰与接收表B.1真空法兰内径、接收外径及管壁厚度（mm）公称通径A**1012.21621617.22022022.22522526.23023234.23824041.24525052.2573637076380838931001021083125127133316015315932002132193250261267332031832534004004063500501509463065166058008008126100010001016812501250127412160016001628141800180018321620002000203618d0，t0数值取自GB/T17395-1998《无缝钢管尺寸、外形、重量及赞同偏差》，作为指导用。在GB/T17395-1998中没有此规格，该尺寸作为参照。附录C（资料性附录）本尺度章条编号与ISO1609:1986（E）章条编号比较表C.1给出了本尺度章条编号与ISO1609:1986（E）章条编号比较一览表。表C.1本尺度章条编号与ISO1609:1986（E）章条编号比较本尺度章条编号对应的ISO1609:1986（E）章条编号————3.43.43.5——3.63.53.73.63.83.73.93.8—表A.1表4图A.1图4表B.1表5、表6、表7图B.1图5、图6附录C—附录D—附录D（资料性附录）本尺度与ISO1609:1986（E）技术性差别及其原因表D.1给出了本尺度与ISO1609:1986（E）的技术性差别及其原因的一览表。表D.1本尺度与ISO1609:1986（E）技术性差别及其原因本尺度的章条编号技术性差别原因在“规范性引用文件”一章中直接写入以适应我国引用尺度的规范。引用的国家尺度,并增加了GB/T3452.1-22005，而ISO1609:1986（E）中的参照增加附录A中的引用文件。资料内容毫无改变的保存了下来。删除了ISO1609:1986（E）中的这六项内容在表1、表2、表3及图1、图2、图3中已表示清楚。3.1.3、、3.2.4、3.4、和33.6。适应我国尺度系统和语言习惯，并简化采用国际尺度的方法。国际尺度中，对于配合尺寸的引用尺3.8增加了3.8“配合尺寸”。度情况没有做出说明。依照GB/T1.1-2000的要求而增加。表1增加了1250、1600、1800、2000规格的依照我国国情，扩大尺度的使用范法兰各项尺寸。围。采用GB/T3452.1-2005对线密封载荷δ值重新计算。依照我国国情采用国标GB/T3452.1-附录A2005，计算获取δ值。增加1250、1600、1800、2000规格的线密封载荷值δ。将表5、表6、表7合并成本尺度的表简化附录中的图与表的结构，使内容B.1。图5、图6合并成本尺度的图更清楚、方便使用。附录BB.1。依照我国国情，采用国标GB/T增加1250、1600、1800、2000规格的真17395-1998作为真空接收外径的参照空法兰内径及所需接收外径。值。附录C作为资料性附录，列出了本尺度与ISO依照GB/T20000.2-2001的要求，增1609:1986（E）条款的比较一览表。加了附录C。附录D作为资料性附录，给出了本尺度与ISO依照GB/T20000.2-2001的要求，增1609:1986（E）技术性差别及其原因的加了附录D。一览表。法兰GB国标尺度GB/T9113~GB9124—2000

法兰尺度

GB/T9113.1~GB/T9113.26

—1988

整体钢制管法兰（

1.6~42.0Mpa）

GB/T9113.1~.2

整体钢制管法兰（平面）（1.6~2.0Mpa

）

GB/T9113.3~.8

整体钢制管法兰

（凸面）（1.6;2.5;4.0;2.0;5.0;10.0Mpa

）

GB/T9113.9~.15

整体钢制管法兰（凹凸面）（1.6;2.5;4.0;5.0;10.0;15.0;25.0;Mpa

）

GB/T9113.16~.20

整体钢制管法兰（榫槽面）（

1.6;2.5;4.05.0;10.0Mpa

）

GB/T9113.21~.26

整体钢制管法兰（环连接）（

2.0;5.0;10.0;15.0;25.0;42.0Mpa

）GB/T9115.1~.36―1988

平面对焊钢制管法兰（

0.25~42.0

）Mpa

GB/T9115.1~.5

（平面）对焊钢制管法兰（

0.25；0.6；1.0

；1.6

；2.0

；Mpa）

GB/T9115.6~.16

（凸面）对焊钢制管法兰（

0.25；0.6；1.0；1.6

；2.5

；4.0

；2.0

；5.0

；10.0

；15.0

；25.0

；Mpa）GB/T9115.17~.23（凹凸面）对焊钢制管法兰（1.6;2.5;4.0;5.0;10.0;15.0;25.0;Mpa）GB/T9115.24~30（榫槽面）对焊钢制管法兰（1.6;2.5;4.0;5.0;10.0;15.0;25.0;Mpa）GB/T9115.31~.36（环连接）对焊钢制管法兰（2.0;5.0;10.0;15.0;25.0;42.0Mpa）GB/T13402—1992大口径碳钢管法兰法兰規格表字体大小：大|中|小2008-01-0216:13-阅读：2030-谈论：0尺寸規分外徑內徑厚中心孔大孔數尺寸規分外徑內徑厚中心孔大孔數5K8022.596012410K9522.5127015420K9522.514701541/2"150P8922.311.260.3154300P9522.314.366.7194DIN169522.514651545K8528106512410K10028147515420K1002816751543/4"150P9827.712.769.8154300P11727.715.182.5194DIN161052816751545K9534.5107512410K12534.514901941"20K12534.51690194150P10834.514.379.4154300P124