最新法兰标准大全

1、法法兰兰标标准准体体系系管道法兰按与管子的连接方式可分为五种基本类型：平焊法兰、对焊法兰、螺纹法兰、承插焊法兰、松套法兰。法兰的密封面型式有有多种，一般常用有凸面（RF）、凹面（FM）、凹凸面（MFM）、榫槽面（TG）、全平面（FF）、环连接面（RJ）。相应材质：20#、A105、Q235A、12Cr1MoV、16MnR、15CrMo、18-8、321、304、304L、316、316L等。一、美标ANSIBI605、WN、SO、SW、PL、BL、TH、LJ。二、日标JIS、B2220。三、德标DIN、2527-2635四、欧洲系列、国行标准。HG20615-97HG20614-97五、美洲系

2、列、国行标准。HG20615-97HG20635-97六、国家标准。GB9122-GB9123-88七、石化、机械部标准。JI81-86-59-94、JB2555-79八、电力部标准。GD-87DG-78九、化工部标准。HGJ44-76-91HG5010-5028-58十、压力容器法兰。JB/T4700-4707-2000常常用用法法兰兰制制造造标标准准美美标标系系列列 American Standard Series标准号通径范围ANSIB16.5(88)1/2-24ANSIB16.47(9026-60ASMEB16.5(96)1/2-24ISO7005-1(92)1/2-24BS4504-

3、3.1(89)1/2-24JPI7S-15-931/2-24NFE29-2031/2-24API605-8126-60ASMEB16.36(96)1-24德德标标系系列列 German Standard Series标准号通径范围DIN2630WNDN1200-DN2400DIN2631WNDN10-DN3600DIN2632WNDN200-DN3000DIN2633WNDN10-DN2000DIN2634WNDN200-DN1000DIN2635WNDN10-DN500DIN2636WNDN10-DN400DIN2637WNDN10-DN350DIN2638WNDN10-DN300DIN25

4、73PLDN10-DN500DIN2576PLDN10-DN500DIN2527PLDN10-DN500DIN2501WNDN15-DN500DIN2566THDN15-DN500DIN2655PLDN15-DN500DIN2656PLDN15-DN500日日标标系系列列 Japanese Standard Series标准号通径范围JISB2220PLDN10-DN400JISB2220SODN450-DN1000JISB2220PLDN10-DN225JIS2220SODN250-DN1000JIS2220SODN10-DN1200JIS2220WNDN15-DN400国国标标系系列列 N

5、ational Standard Series标准号通径范围GB/T9112-9113.4-2000DN10-DN2000JB/T74-86.2-94DN10-DN1600HG20592-20626-97DN10-DN2000SH3406-96DN10-DN1500GB/T17241.1-17241.7DN10-DN4000GB/T15530.1-15530.8DN10-DN1800电电力力部部系系列列 Power Ministry Series标准号通径范围D-GD86-0510-0537DN15-DN2000DG0511-0541DN15-DN1000压压力力容容器器系系列列 Pressu

6、re Vessel Series标准号通径范围JB/T4701-2000(甲型)DN300-DN2000JB/T4702-2000(乙型)DN300-DN3000JB/T4703-2000(长颈)DN300-DN2000船船用用系系列列 Shipping Series标准号通径范围GB573-581-76DN20-DN500GB2506-2507-89DN10-DN2000GB4450-84DN20-DN500GB10746-10749-89DN10-DN600压力等级Class150、300、600、900、1500、2500Class150、300、600、900Class150、300、

7、600、900、1500、2500PN2.05.011.015.026.042.0Class150、300、600、900、1500、2500Class150、300、600、900、1500、2500PN2.05.011.015.026.042.0Class150、300、600Class300、400、600、900、1500、2500压力等级1Bar6Bar10Bar16Bar25Bar40Bar64Bar100Bar160Bar6Bar10Bar610162540Bar1016254063100160250320400Bar1016Bar0.250.61.01.62.54.0Bar0.

8、250.61.01.62.54.0Bar管道法兰按与管子的连接方式可分为五种基本类型：平焊法兰、对焊法兰、螺纹法兰、承插焊法兰、松套法兰。法兰的密封面型式有有多种，一般常用有凸面（RF）、凹面（FM）、凹凸面（MFM）、榫槽面（TG）、全平面（FF）、环连接面（RJ）。相应材质：20#、A105、Q235A、12Cr1MoV、16MnR、15CrMo、18-8、321、304、304L、316、316L等。美美标标系系列列 American Standard Series德德标标系系列列 German Standard Series压力等级5K5K10K10K16K20K30K30K压力等级P

9、N0.250.61.02.54.06.310.016.0MpaPN0.250.61.02.54.06.310.016.020.0MpaPN0.250.61.02.02.54.05.06.310.011.015.016.025.026.042.0MpaPN1.02.05.06.810.015.025.042.0MpaPN0.250.61.01.62.02.54.05.0MpaPN0.61.01.62.02.54.05.0Mpa压力等级PN0.250.61.01.62.54.06.410.0MpaPN0.250.61.01.62.54.06.410.020.032.0Mpa压力等级PN0.250.

10、61.01.610.0MpaPN0.250.61.01.62.54.0MpaPN0.61.01.62.54.06.4Mpa压力等级PN0.61.01.62.54.06.4MpaPN0.250.61.01.62.5MpaPN0.61.01.6MpaPN0.61.01.62.54.06.4Mpa日日标标系系列列 Japanese Standard Series国国标标系系列列 National Standard Series电电力力部部系系列列 Power Ministry Series压压力力容容器器系系列列 Pressure Vessel Series船船用用系系列列 Shipping Ser

11、ies管道法兰按与管子的连接方式可分为五种基本类型：平焊法兰、对焊法兰、螺纹法兰、承插焊法兰、松套法兰。法兰的密封面型式有有多种，一般常用有凸面（RF）、凹面（FM）、凹凸面（MFM）、榫槽面（TG）、全平面（FF）、环连接面（RJ）。相应材质：20#、A105、Q235A、12Cr1MoV、16MnR、15CrMo、18-8、321、304、304L、316、316L等。管道法兰按与管子的连接方式可分为五种基本类型：平焊法兰、对焊法兰、螺纹法兰、承插焊法兰、松套法兰。法兰的密封面型式有有多种，一般常用有凸面（RF）、凹面（FM）、凹凸面（MFM）、榫槽面（TG）、全平面（FF）、环连接面（R

12、J）。相应材质：20#、A105、Q235A、12Cr1MoV、16MnR、15CrMo、18-8、321、304、304L、316、316L等。ANSI150、300、400、600、900、1500、2500RF法兰尺寸表ANSI150RF公称外径螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径通径DNDD1D2ABCE20987043212820272510879.55127352534321188963.5354332424012798.5734150404850152120.59253625060.565178139.51056375657380190152.51277891808

13、9100229190.5157102116100114125254216186128144125141150279241.5216154171150168200343298.5270203221200219250406362324255276250273300483432381305327300324ANSI300RF公称外径螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径通径DNDD1D2ABCE2011782.54321282027251248951273525343213398.4643543324240156114.5734150404850165127925362506065191

14、149105637565738021016812778918089100254200157102116100114125279235186128144125141150318270216154171150168200381330270203221200219250445387.5324255276250273300521451381305327300324ANSI400RF公称外径螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部通径直径DNDD1D2ABCE2011782.543按282027251248951用352534321339864户4332424015611473要504048501

15、6512792求6250606519114910575657380210168127918089100254200157116100114125279235186144125141150318270216171150168200381330270221200219250445387324276250273300521451381327300324ANSI600RF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径DNDD1D2ABCE2011782.543按282027251248951用352534321339864户43324240156114.573要504048501651

16、2792求6250606519114910575657380210168127918089100273216157116100114125330266.5186144125141150356292216171150168200419349270221200219250508432324276250273300559489381327300324ANSI900RF公称外径螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径通径DNDD1D2ABCE201308943按28202725149101.551用3525343215911164户4332424017812473要5040485021616

17、592求62506065244190.510575657380241190.5127918089100292235157116100114125349279.5186144125141150381317.5216171150168200470393.5270221200219250546470324276250273300610533.5381327300324ANSI1500RF公称通径外螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径径DNDD1D2ABCE201308943按用户要求28202725149101.5513525343215911164433242401781247350

18、4048502161659262506065244190.510575657380267203127918089100311241.5157116100114125375292186144125141150394317.5216171150168200483393.5270221200219250584482.5324276250273300673571.5381327300324ANSI2500RF公称通径外螺栓孔中心圆直径连接凸出部分直径内径焊接处颈部直径径DNDD1D2ABCE201409843按用户要求28202725159108513525343218413063.543324240

19、2031467350404850235171.5926250606526719710575657380305228.5127918089100356273157116100114125419324186144125141150483368.5216171150168200552438270221200219250673539.5324276250273300762619381327300324按用户要求颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn381353162291.615451491456171.615460591657211.6154676518

20、62221.615483781964251.619495912470291.61941081082470301.61941401352476333051.61981651642489371.62381971922589401.623824824629102441.623830530530102491.6251236536532114561.62512颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn481657252291.619454541762271.619464641965271.619470702168301.623484842270331.61981

21、001002576381.62381171172979431.62381461463286483051.62381781783598511.62382062063798521.6231226026041111621.6251232132148117671.6301637537551130731.63316颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn482264322356.419454542468336.419464642773356.419470702976386.423484843279436.41981001003586486.4238117117

22、3889526.42381461464195573116.4258焊接处颈部直径焊接处颈部直径焊接处颈部直径17817845108606.425820620648110646.4251226026054124756.4301232132160130796.4331637537564143866.43516颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn482264322356.419454542468336.419464642773356.419470702976386.423484843279436.41981001003586486.4238117117

23、3889526.423815215245108573116.425819118951121676.430822222254124736.4331227327362140836.4361234334370159926.4361640040073162986.43620颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn443276412356.423452523579486.425463.5643579486.425470703889516.430410510545108646.425812412448111706.430812712745108606.42581

24、5915951121763116.4338190.519158133866.436823523562146926.43312298298701681086.43912368368761911146.43916419419862061246.43920颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn44.53276412356.423452523579486.425463.563.53579486.4254焊接处颈部直径焊接处颈部直径焊接处颈部直径31170703989516.430410510545108646.425812412448111706.4308

25、13313354124796.433816216261130973116.4358197170801621116.4428229229891781256.44512292292992191496.445123683681152601653116.451124514511312891875146.45516颈根部直径法兰焊接法兰长度连接凸出部分高度螺栓孔直径数量厚度FGJL1L2L3Ldn513886492356.423457574195546.4254737345102593116.4304797951118676.4334959557133766.430811411464149866.433

26、813313373175986.4368165165831971146.4428203203982351376.44882352351142791596.45583053051333241846.455123753751724262353116.467124414411914702605146.47512焊接处颈部直径235螺栓直径M1212121216161616M20M20M20M22M22螺栓直径M16161620162020202020222730螺栓直径M16161620162020222222273032螺栓直径M16161620162020222730333333螺栓直径M202

27、22227222722303330363636螺栓直径M20222227222730323942424852螺栓直径M20222730273033394552526472ANSI150、300、600、900、1500、2500RJ法法兰兰尺尺寸寸表表ANSI150RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE2510879.563.52520.76.447.66.44012798.582.63823.96.465.16.450152120.5101.65125.56.482.66.465178139.5120.

28、66428.76.4101.66.480190152.5133.47630.36.4114.36.4100229190.5171.410230.36.4149.26.4125254216193.712730.36.4171.56.4150279241.5219.115231.86.4193.66.4200343298.5273203356.4247.76.4250406362330.225436.66.4304.86.4300483432406.430538.26.43816.4ANSI150RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径

29、DNDD1D2D3tfLE2011782.563.51922.36.442.96.4251248969.82523.96.450.86.440156114.590.53827.16.468.36.4501651271085130.3882.68651901491276433.48101.68802101681467636.68123.88100254200174.610246.18149.28125279235209.61274381818150318270241.315244.68211.18200381330301.620349.38269.98250444387.5355.625455.

30、78323.98300521451412.530558.883818ANSI300RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE2011782.563.51922.36.442.96.4251248969.82523.96.450.86.440156114.590.53827.16.468.36.4501651271085130.3882.68651901491276433.48101.68802101681467636.68123.88100254200174.610246.18149.281252792352

31、09.61274381818150318270241.315244.68211.18200381330301.620349.38269.98250444387.5355.625455.78323.98300521451412.530558.883818ANSI600RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE2011782.563.51922.36.442.96.4251248969.82523.96.450.86.440156114.590.53828.76.468.36.4501651271085133.4

32、882.68651901491276436.68101.68802101681467639.68123.88100273216174.610246.18149.28125330266.5209.612752.581818150356292241.315255.78211.18200419349301.620063.68269.98250508432355.624871.58323.98300559489412.829874.783818ANSI900RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE80241190.

33、5155.67346.18123.881002922351819952.58149.28125349279.5215.912158.881818150381317.5241.314663.68211530819171.58270825054647036223877.98323.98300610533.5419.128287.483818ANSI1500RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE25149101.571.422356.450.86.4外径螺栓孔中心圆直径连接凸出部分直径

34、内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度4017812492.13538.26.468.36.450216165123.84846.1895.3865244190.5136.55749.38108880267203168.37055.78136.58100311241.5193.7926281628125375292228.611181.18193.78150394317.5247.613692.29.6211.19.6200483393.5317.5178103.311.227011.2250584482.5371.5222119.211.2323.911.2300673571

35、.5438.2264138.214.338114.3ANSI2500RJ公称外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度梯形槽中心圆直径梯形槽深度通径DNDD1D2D3tfLE2515910882.61941.46.460.36.440203146114.32852.5882.6850235171.5133.43858.88101.6865267197149.24866.89.6111.19.680305228.5168.35776.39.61279.6100356273203.27387.411.2157.111.2125419324241.392104.812.7190

36、.512.7150483368.5279.4111120.712.7228.612.7200552438339.7146141.314.3279.414.3250673539.5425.5184182.617.5342.617.5300762619495.3219201.717.5406.417.5梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/15128.74/15128.74/19168.74/19168.74/19168.78/19168.78/23208.78/23208.78/23208.712/25228.712/2522梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/

37、19168.74/19168.74/232011.98/191611.98/232011.98/232011.98/232011.98/232011.912/232011.912/252211.916-302711.916-3330梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/19168.74/19168.74/232011.98/191611.98/232011.98/232011.98/232011.98/232011.912/232011.912/252211.916-302711.916-3330梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/19168.74/19168

38、.74/222011.98/191611.98/222011.98/222011.98/222211.98/252711.912-323011.912-363311.916-363311.920-3633梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM11.98/252211.98-333011.98-353211.912-333011.912-393611.916-393611.920-3936梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/2522梯形槽宽度螺栓孔数量与直径螺栓直径8.74/302711.98/252211.98/302711.98-333011.98-363311.98

39、-423913.512-393616.712-454216.712-51482316-5552梯形槽宽度螺栓孔数量与直径螺栓直径Fn-dM8.74/252211.94-333011.98/302713.58-333013.58-363316.78-423919.88-484519.88-55522312-555230.212-676433.412-7472JIS10K、16K、20K、30K、40K、63K、RF、FF法法兰兰尺尺寸寸表表JIS10K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2010

40、075581914/1814/15122512590702514/1814/191640140105853816/2024/1916501551201005116/2024/1916651751401206118/2224/1916801851501307618/2228/191610021017515510218/2428/191612525021018512520/2428/232015028024021515222/2628/232020033029026520422/2628/232025040035532525424/30212/252230041540037030524/32316

41、-2522JIS16K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2010075581914/1814/15122512560702514/1814/191640140105853816/2024/1916501551201005116/2028/1916651751401206418/2228/1916802001601357620/2428/232010022518516010222/2628/232012527022519512522/26212/252215030526023015224/28

42、212/252220035030527520426/30212/252225043038034525428/34212/272430048043039530530/36316-2724JIS20K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2010075581916/1814/15122512590702516/2014/191640140105853818/2224/1916501551201005118/2228/1916651751401206420/2428/19168020016013576

43、22/2628/232010022518516010224/2828/232012527022519512526/3028/252215030526023015228/32212/252220035030527520430/34212/252225043038034525434/38212/272430048043039530536/40316-2724t值中较小值为钢及可锻铸铁法兰；较大值为铸铁法兰。JIS30K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM201208560191814/191625

44、1309570252014/19164016012090382224/232050165130105512228/191665200160130642628/232080210170140762828/23201002401951601023228/25221252752301951253628/252215032527523515238212/272420037032028020442212/272425045039034525448212-333030051545040530552316-3330JIS40K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高

45、度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM201208560192014/1916251309570252214/19164016012090382424/232050165130105512628/191665200160130643028/232080210170140763228/23201002502051651023628/25221253002502001254028/272415035529524015244212-333020040534529020050212-3330250475440355247.556212-3330300540470440298.5603

46、16-3936JIS63K、RF、FF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM25140100702227140-23204017513090353224/252250185145105483428/232065220175130573828/252280230185140734028/2522100270220165994428/27241253252652001215028-333015036530524014652212-333020042536029019058212-3330250500430355

47、23868212-393630056048541028377316-3936JPI150、300、600RF、RJ法法兰兰尺尺寸寸表表JPI150RF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM209870431912.71.645512514.31.645733817.51.64/151250152120.5925119.11.64/191665178139.51056422.31.64/191680190152.51277623.91.64/19161002

48、29190.515710223.91.68/191612525421618612523.91.68/2220150279241.521615225.41.68/2220200343298.527020428.61.68/222025040636232425430.21.612/252230048343238130531.81.612/2522JPI300RF公称通径外径螺栓孔中心圆直径连接凸出部分直径内径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2011782.5431915.91.64/19162512489512517.51.64/19164015611

49、4.5733820.71.64/222050165127925122.31.68/1916651901491056425.41.68/2220802101681277628.61.68/222010025420015710231.81.68/2220125279235186125351.68/222015031827021615236.61.612/222020038133027020441.31.612/2522250444387.532425447.71.616-292730052145138130550.81.616-3230JPI600RF公称通径外径螺栓孔中心圆直径连接凸出部分直径内

50、径法兰厚度连接凸出部分高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM2011782.5431922.36.44/19162512489512523.96.44/191640156114.5733828.76.44/222050165127925131.86.48/19166519014910564356.48/2220802101681277638.26.48/222010027321615710244.56.48/2522125330266.518612550.96.48/292715035629221615254.16.412/2927200419349270200626.41

51、2-3230250508432324247.569.96.416-3533300559489381298.573.16.420-3533JPI150RJ公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度DNDD1D2D3LEFt2510879.563.52547.6258.7316.420.74012798.582.63865.0888.8316.423.950152120.5101.65182.558.7316.425.565178139.5120.664101.68.7316.428.780190152.5133.176114.38.7316.43

52、0.3100229190.5171.1102149.2258.7316.430.3125254216193.7125171.158.7316.430.3150279241.5219.1152193.6758.7316.431.8200343298.5273204247.658.7316.435250406362330.2254304.28.7316.436.6300483432406.13053818.7316.438.2JPI300RJ公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度DNDD1D2D3LEFt2011782.563.51942.86

53、28.7316.422.3251248969.82550.88.7316.423.940156114.590.53868.26211.9066.427.1501651271085182.5511.906828.76519014912764101.611.906831.88021016814676123.82511.906835100254200174.6102149.22511.906838.2125279235209.6125180.97511.906841.4150318270241.3152211.13811.906843200381330301.6204269.87511.906847

54、.7250444387355.6254323.8511.906854.1300521451412.830538111.906857.2JPI600RJ公称通径外径螺栓孔中心圆直径连接凸出部分直径内径梯形槽中心圆直径梯形槽深度梯形槽宽度法兰厚度DNDD1D2D3LEFt2011782.563.51942.8628.7316.422.3251248969.82550.888.7316.423.940156114.590.53868.2628.7316.428.7501651271085182.5511.906831.86519014912764101.611.9068358021016814676

55、123.82511.906838.2100270216174.6102149.22511.906844.5125330266.5209.6125180.97511.906850.9150356292241.3152211.13811.906854.1200419349301.6200269.87511.906862250508432355.6247.5323.8511.906869.9300559489412.8298.538111.906873.1连接凸出部分高度螺栓孔数量与直径螺栓直径fn-dM6.44/15126.44/15126.44/19166.44/19166.44/19166.4

56、8/19166.48/22206.48/22206.48/22206.412/25226.412/2522连接凸出部分高度螺栓孔数量与直径螺栓直径fn-dM6.44/19166.44/19166.44/222088/191688/222088/222088/222088/2220812/2220812/2522816-2927816-3230连接凸出部分高度螺栓孔数量与直径螺栓直径fn-dM6.44/19166.44/19166.44/222088/191688/222088/222088/252288/2927812/2927812-3230816-3533820-3533德德国国DINDI

57、N标标准准法法兰兰尺尺寸寸PN16(1.6MPa)公称通径外径螺栓孔中心圆直径连接凸出部分直径连接凸出部分高度法兰厚度螺栓孔数量与直径螺栓直径DNDD1D2fHn-dM159565452144/14122010575582164/14122511585682164/141232140100782184/181640150110882184/1816501651251023204/1816651851451223204/1816802001601383228/18161002201801583248/18161252502101883268/18161502852402123268/222020

58、03402952683308/22202504053553203328/2624PN40(4.0MPa)公称通径外径螺栓孔中心圆直径连接凸出部分直径连接凸出部分高度法兰厚度螺栓孔数量与直径螺栓直径DNDD1D2fHn-dM159565452164/14122010575582184/14122511585682184/141232140100782184/181640150110882184/1816501651251023204/1816651851451223228/1816802001601383248/18161002351901623248/22201252702201883268/

59、26241503002502183288/262420037532028533412/302725045038534533812-3330中中国国JBJB标标准准法法兰兰尺尺寸寸 1 1、凸凸面面整整体体钢钢管管法法兰兰（JB/T79.1-94)JB/T79.1-94) PN1.6PN1.6、PN2.5、PN4.0MPa图1凸面整体铸钢管法兰PN1.6MPa公称通径连接尺寸密封面尺寸DN法兰外径螺栓孔中心圆直径螺栓孔直径螺栓、螺柱dfDKL系列1/系列2系列1/系列2数量n螺纹Th.系列1/系列2159565144M124522010575144M125522511585144M1265232

60、140/135100184M1678240150/145110184M1685350165/160125184M16100365185/180145184M16120380200/195160188M161353100220/215180188M161553125250/245210188M161853150285/280240238M202103-175310270238M202403200340/3352952312M202653-2253653252312M20295325040535526/2512M24/M22320330046041026/2512M24/M223754PN2.5M