法兰标准尺寸表

1、中国标准法兰尺寸“面整 lOifl 管法兰(/T79.1-94)图1酋面整lOffl管法兰表 28 PN1.6MPamm公稀通g DN连接尺寸密封面尺寸法兰厚IS C法兰颈法兰外径D系列1/系列2螺栓孔中心i直径K直径L系列1/系列2双头螺柱dfNmaxSmaxR数量n嚓纹Th.系列1/系列2159565144M1245214391242010575144M1255214441242511585144M12652144912432140/135100184M16782165612440150/145110184M16853166412450165/160125184M1610031674125

2、65185/180145184M161203189515580200/195160188M16135320110155100220/215180188M16155320130155125250/245210188M16185322161186150285/280240238M20210324186186(175)310270238M20240326215206200340/3352952312M20265326240206(225)3653252312M2029532626922625040535526/2512M24/M2232033029824830046041026/2512M24/M2

3、2375430348248表 29 PN2.5MPamm公称通6 DN连接尺寸密封面尺寸法兰厚度C法兰颈法兰外径D系列1/系列2螺栓孔中心i直径K直轻L系列1/系列2媒栓、BttdfNmaxSmaxR数量n螺级Th.系列1/系列2159565144M1245216391242010575144M1255216441252511585144M12652164912532140/135100184M16782186215540150/145110184M16853187015550165/160125184M161003208015565185/180145188M1612032210118680

4、200/195160188M16135322116186100230190238M2016032413618612527022026/258M24/M2218832816922815030025026/258M24/M22218330198248(175)33028026/2512M24/M2224833222324820036031026/2512M24/M22278334252268(225)3953403012M273023362812882504253703012M2733233630628103004854303016M273904403603010表 30 PN4.0MPa mm公

5、称通径DN连接尺寸密封面尺寸法兰厚® C法兰颈法兰外径D系列1/系列2中心圓直径K螺栓孔直径L系列1/系列2媒栓、嗓柱dfNmaxSmaxR数量n螺级Th.系列1/系列2159565144M1245216391242010575144M1255216441252511585144M12652164912532140/135100184M16782186215540150/145110184M16853187015550165/160125184M161003208015565185/180145188M1612032210118680200/195160188M16135322116

6、186100235/230190238M2016032414020612527022026/258M24/M2218832816922815030025026/258M24/M22218330198248(175)3502953012M2725833423128102003753203012M272823382562810(225)4153553412M303153402853010250450/4453853412M303453423143210300515/5104503416M304084463683412注：表2830中系列1法兰连接尺寸与国标及德国法兰标准尺寸互换；系列2尺寸与原机标

7、准法兰尺寸互换；新产品设it应优先采用系列1尺寸。2.Bfl面整体铸厠管法兰(/T79.2-94)优质资料图2凹曲面整iOffl管法兰mm表 31 PN4.0MPamm通径DN连接尺寸密封面尺寸法兰C法兰颈法兰外径D系列1/系列2螺栓孔中直径KHfi 径L系列1/系列2双头察柱dX系 列1/ 系列2Y系 列1/ 系列2fh、2NmaxSmaxR数量nS 级 Th.系列1/系列2159565144M124539402416391242010575144M125550512416441252511585144M1265575824164912532140/135100184M16786566241

8、86215540150/145110184M1685757634187015550165/160125184M16100878834208015565185/180145188M16120109110342210118680200/195160188M161351201213422116186100235/230190238M2016014915034.52414020612527022026/258M2418817517634.52816922815030025026/258M24/M2221820320434.530198248(175)3502953012M2725823323434.5

9、3423128102003753203012M2728225926034.5382562810(225)4153553412M3031528628734.5402853010250450/4453853412M3034531231334.5423143210300515/5104503416M3040836336444.5463683412表 32PN63MPamm通径DN连接尺寸密封面尺寸法兰C法兰颈法兰外径D系列1/系列2螺栓乱中直径KHfi 径L系列1/系列2双头察柱dX系 列1/ 系列2Y系 列1/ 系列2ffl、f2NmaxSmaxR数量n« 级 Th.系列1/系列2151

10、0575144M1255394024184515420130/12590184M1668505124205216525140/135100184M1678575824226118532155/150110234M2082656624246818540170/165125234M2095757634248020550180/175135234M20105878834269020565205/200160238M20130109110342811123680215/210170238M20140120121343012824610025020026/258M24/M2216814915034.53

11、2152266125295240308M2720217517634.536181288150345/340280348M3024020320434.538210308(175)3703103412M3027023323434.542239321020040534536/3412M33/M3030025926034.5442683410(225)43037036/3412M33/M3032528628734.546301381025047040036/4112M33/M3635231231334.548326381030053046036/4116M33/M3641236336444.55438

12、44212表 33 PNIO.OMPamm连接尺寸密封面尺寸法兰颈法兰外螺栓双头掾柱X系Y系法兰通径径D系孔中ns数量« 级 Th.d列1/列1/f竹、f2厚度NmaxSmaxRDN列1/系心岡径L系n系列1/系列系列C列2直径列1/系列222K系列21510575144M1255394024204515420130/12590184M1668505124225417425140/135100184M1678575824246118432155/150110234M2082656624246818440170/165125234M209575763426802045019514526

13、/254M24/M2211287883428942246522017026/258M24/M2213810911034321152558023018026/258M24/M221481201213434132265100265210308M2717214915034.538160305125315/310250348M3021017517634.542189326150355/3502903412M3025020320434.546222366(175)3803203412M3028023323434.54825138820043036036/4112M33/M3631225926034.55

14、4284428(225)4704004112M3635228628734.556313448250505/5004304112M3638231231334.56034648830058550042/4816M39/M4244236336444.5704085410表 34 PN16.0MPamm连接尺'I密封面尺寸法兰颈通径法兰嫖栓双头摞柱dX系列Y系列ffK f2妖二fiscNmaxSmaxRDN外径孔中孔直数量摞级22D系 列1/ 系列2心冏直径K径L系列1/系列2nTh.系 列1/ 系列21511075184M165239402424491742013090234M2062505

15、124265819425140100234M2072575824286520432165115254M2285656624307622540175125274M2492757634328824550215165258M221328788343610226565245190308M27152109110344413133880260205308M271681201213446148348100300240348M3020014915034.548172368125355285418M3623817517634.56021344101503903184112M3627020320434.56624

16、64810(175)4603804812M4232523323434.57428756102004804004812M4234525926034.5783165810(225)5454505412M4839028628734.58234560102505804855412M4842531231334.58837864103006655705416M4851036336444.51004527610表 35 PN20.0MPamm公称通径DN连接尺寸密封面尺寸法兰f Be法兰颈法兰外径D系列2孔中心直径K螺栓 孔直 径L 系列2双头螺柱dX系列2Y系列2ffK f2NmaxSmaxR数量nTh.

17、系 列1/ 系列21512082234M205527282526511852013090234M2062343525286020525150102254M2272414225306721532160115254M2285495025327823540170124274M2490555635349025550210160258M221286970354010829565260203308M271659697354813736880290230348M301901151163554160408100360292418M3624513713836662045281253853184112M36270

18、169170367623756101504403604812M4230518919036822706010(175)4753944812M42340213214368430163102005354405412M4838024424536923407010(225)5804835812M524182672683610037776102506705725816M52508318319361104489410注：表3135中系列1法兰连接尺寸与国标及德国法兰标准尺寸互换，系列2尺寸与原机标法兰尺寸互換;新产品设it优先采用系列1尺寸。3、牌槽面整管法兰(ZT79.3-94)u>1畀1i&quo

19、t;*X表 36 PN4.0MPamm公称通径DN连接尺寸密封面尺寸法厚® C法兰碩法兰外 轻D系 列1/系 列2螺栓孔中心圆 直径K螺栓 孔直 径L 系列1/系取头螺柱dW系 列1/ 系列2X系 列1/ 系列2Y系 列1/ 系列2Z系 列1/ 系列2fh、f2NmaxSmaxR数量ng a Th.系 JI 1/系列2列2159565144M1245293940282416391242010575144M1255365051352416441252511585144M12654357584224164912532140/135100184M1678516566502418621554

20、0150/145110184M16856175766034187015550165/160125184M161007387887234208015565185/180145188M161209510911094342210118680200/195160188M161351061201211053422116186100235/230190238M2016012914915012834.52414020612527022026/258M24/M2218815517517615434.52816922815030025026/258M24/M2221818320320418234.5301982

21、48(175)3502953012M2725821323323421234.53423128102003753203012M2728223925926023834.5382562810(225)4153553412M3031526628628726534.5402853010250450/4453853412M3034529231231329134.5423143210300515/5104503416M3040834336336434244.5463683412连接尺寸密封面尺寸法法兰颈通径法兰外螺栓双头摞柱dW系X系Y系Z系fh、f2ILNmaxSmaxRDN径D系孔中孔直数Th.列1/別

22、1/列1/列1/I?表37PN6.3MPamm列1/系列2直径K径L系列1/系列2量n系列1/系列2系列2系列2系列2系列2卩 1 C1510575144M12552939402824184515420130/12590184M16683650513524205216525140/135100184M16784357584224226118532155/150110234M20825165665024246818540170/165125234M20956175766034248020550180/175135234M201057387887234269020565205/200160238M

23、201309510911094342811123680215/210170238M20140106120121105343012824610025020026/258M24/M2216812914915012834.532152266125295240308M2720215517517615434.536181288150345/340280348M3024018320320418234.538210308(175)3703103412M3027021323323421234.542239321020040534536/3412M33/M3030023925926023834.54426834

24、10(225)43037036/3412M33/M3032526628628726534.546301381025047040036/4112M33/M3635229231231329134.548326381030053046036/4116M33/M3641234336336434244.5543844212表 38PNIO.OMPamm通径DN连接尺寸密封面尺寸法厚I'i C法兰颈法兰外 径D系 列1/系列2孔中直径K孔直 径L 系列1/系列2双头螺柱dW系列1/ 系列2X系 列1/ 系列2Y系 列1/ 系列2Z系 列1/ 系列2fh、f2NmaxSmaxR数量n螺纹Th.系列1/系列21510575144M12552939402824204515420130/1259