法兰螺栓公称直径

焊接平式钢制法兰盘标准尺寸表（Pg=10Kg/cm2） （I.OMPa）单位（mm）公称直径管子外径 （法兰内 径）法兰盘焊接螺栓管子外径 和法兰盘 内径之间 最大距离法兰盘外 径和公差螺栓中 心距直 径和公差连接凸缘密封表面法兰 盘厚 度及 公差螺栓 孔直 径及 公差法兰盘 重量（Kg）焊缝高度管壁最小厚度法兰 盘管 端距 离数量螺纹长度直径高度沟纹 间的 距离沟纹宽度沟纹 数dhD2gg1BdQKSHeDgDD1hn一+0.87一+0.74,J0.4310140.43906040412120.464M1245 :+0.43214334亠 +0.87八 +0.74,J0.43,+0.4315180.52956545 1241212140.613344M124520250.52105+0.8775+07458241214+0.4314+0.430.753344M1245,+0.87小 +0.87,+0.43,+0.4325320.621158568241214140.8943.554M1245+1.0+0.87+0.43+0.5232380.621351007821216181.4043.554M1655 :40450.62+1 0145/ / c+0.89110883412/ c+0.5218/ c+0.52181.7143.554M166050570.74,+1.0160l+1.01251023412/ c+0.5218/ c+0.52 1182.0943.554M166070760.74/ cc+1.15180+1 01451223412“+0.5220+0.52182.845464M1665+ 1.15+1.0+0.52+0.5280890.87195160138351320183.245464M16651001080.87l+1.15215/ cc+1.15180158351322+02/ c+0.52 1184.015468M16701251331.0 l+1.15245 c+1.15210188351324+0.52/ +0.521185.405468M16701501591.0ccc+1.35280c +1.15240212351324+0.52cc+0.52236.1254.568M2075+ 1.35+ 1.35+0.52+0.522002191.0335295268351324238.247688M20752502731.0ccc+1.55390clc+1.353503203513“+0.5226cc+0.522310.7981012M20803003251.0,“+1.55440c+1.554003704513“+0.5228cc+0.522312.9981012M20903503791.0lcc+1.8500c+1.554604304513“+0.5228cc+0.522315.71091116M2090+1.8+1.8+0.62+0.524004261.05655154824513302521.81091116M22904504782.0l+1.8615+1 85655324513“+0.63025+0.5224.41091120M22905005292.0crc+20670ccc+1.86205854513cc+0.623225+0.5227.71091120M221006006302.0c+20780+1 87256855513“+0.623630+0239.41091120M27100单位（mm）图号：1B503-3管子公称 直径管子外径 （法兰内 径）法兰盘法兰重量管子外径 和法兰盘 内径之间 最大距离螺栓中心 距直径和 公差法兰盘 外径和 公差法兰盘 厚度及 公差螺栓孔螺栓直径 及公差焊接缝隙焊缝高度孔径螺栓数量DgdoeD1DbdHK1K2(Kg):200219129533518238M208686.72582731350390202312M208688.23003251395435202312M2086109.33503771.5445485202312M2086109.94004261.5495535202316M20861011.24504781.5550590202316M208610135005291.5600640202316M20861014.16006301.5705755202520M22861018.97007201.5810860202524M27861024.48008202920975203024M27861030.4900920210201075203024M27108103410001020211201175203028M271081037.211001120212201280243032M271081053.812001220213401400243432M301081061.4130013202.514401500243432M301081066.4140014202.515601620243436M301081280.4150015202.516601720243436M301081286160016202.517601820243440M301081291180018202.519702045244144M3610812113200020202.521802265284848M4210812156220022202.523902475284852M4210812176240024202.526002685284856M4210812204Pg=1kgf/cm2平式钢制法兰说明：1. 法兰盘材料为A3,电焊条用T422.2. 法兰盘表面应是光滑的，不得有气泡 裂缝斑点、毛刺及其他降低法兰强度和 法兰连接可靠性的缺陷。3. 法兰所用的螺栓、螺母及垫片见1B503-13本表中法兰重量一项不包括 螺栓螺母的重量。4. 表中尺寸D1、D d及螺栓孔数确定原 则如下：Dg200 Dg250系列按JB78-59 ，Pg=10Kgf/cm2确定，以便于 配 Pg=10kg/cm2的 阀门；Dg300-Dg2400系列按JB78-59,Pg=6Kgf/cm2确定，以便于配 /专用阀门。%5.尺寸D1、d的公差按GB159-59勺8级精度，尺寸D b的公差按GB159-59勺9级精 度，相邻两螺栓孔之间的弦长允许偏差为土 0.6mm任意两 螺栓孔之间的弦长总偏差为当Dgl+1.554454154513cc+0.5226+0.522312.61091112M20804004261.0+ 1 8535 1.8l+1.554954654513cc+0.5228+0.522315.21091116M20904504782.0lcc+1.8590llc+1.85505204513+0.5228+0.522317.61091116M20905005292.0+2.0640+ 1.86005704513+0.5230+0.522320.71091116M20906006302.0+2.0755fcl+207056705513“+0.623025+0.5226.61091120M22907007202.0860“c+2.2810775561.53cc+0.623225+0.5237.11091124M221008008202.0975ccc+2.2920880561.53cc+0.623230+0246.21091124M271009009202.0+2.41075+2.41020980561.53+0.6234+0.623055.11091124M27110100010202.0+2 41175 .+2 41120 .1080561.53cc+0.6236cc+0.623057.31091128M27110Pg=6Kgf/cm2钢制平式法兰使用范围试验压力P (用t100 C的水柱压)Kg/cm29在介质温度C为右栏 所示时取大工作压力Kg/cm2曲009以内6在25OP以内5.5/I.3001CW 内5公称直径Dg(mm)10-1000单位（mm）图号：1标2001公称直径管子外径 （法兰内 径）法兰盘焊接螺栓管子外径 和法兰盘 内径之间 最大距离法兰盘外 径和公差螺栓中 心距直 径和公差连接凸缘密封表面法兰 盘厚 度及 公差螺栓 孔直 径及 公差法兰盘 重量（Kg）焊缝高度管壁最小厚度法兰 盘管 端距 离数量螺纹长度直径高度沟纹 间的 距离沟纹宽度沟纹 数DgdhDD1D2hgg1BdQKSHne10140.43+0.8790+0.7460402412+0.4314+0.43140.553344M124515180.5295+0.8765+0.7445241214+0.4314+0.430.713344M124520250.52105+0.8775+074582412+0.4316彳 x+0.43140.873344M125025320.62 u+0.8711585+0.87682412/ c+0.5218彳 x+0.43141.1743.554M125532380.62+1.0135*cc+0.87100782513丿 c+0.5218* c+0.52181.6043.554M166040450.62+1 0145/ / c+0.89110883513+0.5220/ c+0.52182.0043.554M166550570.74c+1.0160cl+1.0125102351322+02/ c+0.52182.6143.554M167070760.74/ cc+1.15180+1 0145122351324+0.52/ c+0.52183.455464M167080890.87cl+1.15195c+1.0160138351324+0.52/ c+0.52183.715468M16701001080.87l+1.15215/ cc+1.151801583513+0.5226/ c+0.52184.85468M16751251331.0 l+1.15245 c+1.152101883513+0.5228/ c+0.52186.475468M16801501591.0c+1.35280c +1.152402123513+0.5228cc+0.52237.9254.568M20902002191.0+ 1.35335+ 1.352952683513+0.6230+0.522310.176812M20902502731.0l+1.55405355+1.353203513cc+0.623225+0.5215.7981012M221003003251.0c+1.55460410+1.59378461.5332+0225+0.6218.1981012M221003503791.0lcc+1.8520,c+1.56470438461.5334+0.6225+0.5223.31091112M221004004261.0lcc+1.8580+1 8525 1.8490461.5338+0230+0231.01091116M271104504782.0c+20640lcl+1.8585550461.5342+0.6230+0240.21091120M271205005292.0fcl+20705clc+2.0650610461.53+0.624834+0.6255.11091120M301406006302.0c+2.2840“c+2.0710720561.54lc+0.625041+0.6280.31091122M36150Pg=16Kgf/cm2钢制平式法兰1L使用范围试验压力P (用t100 C的水柱压)Kg/cm224在介质温度C为右栏 所示时取大工作压力Kg/cm2在200C以内16在250C以内15在300C以内13公称直径Dg(mm)10-600单位（mm）图号：1标3795公 称 直 径连 管 的 突 出 长 度连接管法兰盘加强环焊接螺栓重量（Kg）连 管 的 直 径壁厚当R=350时高 度法兰 盘突 出部 分连 管端 部的 距离外径螺 栓 圆 周 直 径密 封 面 直 径法兰盘的厚度螺 栓 孔 的 直 径外径设备壁之厚度数 量直径环m=10mm管子长100mm法盘810121416182022DghdsanDKgLeD1环的厚度1010014314906040161434M120.080.651510018314956545161434M120.110.7320100253141057558181434M120.161.0425100323.5161158568181454M120.291.2532100383.51614010078181854M160.301.804010044.53.51615011088181854M160.352.0050100574.517160125102181864M160.382.207013076638185145122221813081012141618202278M160.691.043.308013089638200160138241816081012141618202278M161.081.234.20100150108758235190162282317081012141618202278M201.501.746.60.125180133758290220188302524081012141618202278M222.492.188.901501801598910300250218302529081012141618202298M223.632.9810.62002002199181136031029832254008101214161820221012M226.954.6614.2 .2502202739281142537033534305108101214161820221012M2711.55.8619.43002203259401148543039036306108101214161820221016M2716.57.0124.5DD11. 加强环材料A2或A3,管子按冶11-57A10;2. 法兰盘按标准1标-2002 ;3. 电弧焊或气焊均可；4. 电弧焊时使用电焊条42;5. 气焊时气焊条15；带有突出部和凹入部的钢制对头焊接法兰盘Pg=64Kg/cm2图号：1标-2009尺寸表公称管法兰盘双头螺栓直径子外外径与内径与连接突出部突出部凹入部突出部凹入部法兰高双头颈法兰盘重量Kg数螺长径公称公称直径高度直径与r直径与突出部的高度盘的度螺栓外最倒圆半带突带凹量纹度公差公差凹入部的深度厚度孔直径大径出部入部与公差与公径与直差公差径DgdHDd1D2hD3D4H1LhdDnDmQQhL+0.87-0.50.34+0.34+0.52+0.431014100850234354 0.518I 4814153441.051.04M1255：“亠 +0.870.50.34八+0.34“ +0.52“ +0.4315181051255239404 0.5184814193851.181.114M1255 :+1 00.5 0.4+0 4一+0 52一+0 522025125186825051 0.44 0.520P 5618264851.871.764 ：M1665+1 00.5 0.4+0 4+0 52+0 5225321352578257584 0.522I 581833525P 2.362.224M1670+1.00.5 0.4+0.4+0.52+0.5232381503185265664 0.5246223396453.152.994M2075+1.00.5 0.4+0.4+0.52+0.5240451653796375764 0.5246823467453.803.674M2075+1.00.50.46+0.46+0.52+0.52505717547106387884 0.5261 7023588654.764.54M2080一八+1.15八0.5“ 0.46“ +0.46一+0.52亠小+0.5270762006413231091104 0.52875237710666.436.058M2090+1.150.5 0.53+0.53+0.62+0.5280892107714231201214 0.53075239012067.4378M2090+1.150.5 0.53+0.53+0.62+0.521001082508417031491504.5 0.5321 8025100140611.310.58 1M20100：+1 35 0.5 0.53+0 53+0 62+0 6212513329511020531751764.5 0.53698301351728P 17.516.68M27110 I+1.35 0.50.6+0.6+0.62+0.6215015934014224032032044.5 0.53811034161206825.324.18M30120 I+1.55 0.50.6+0.6+0.62+0.6220021940519830032592604.5 0.540116342222641037.535.912M30130：+1 551 0 0 68+0 68+0 62+0 62250273470246355 n33123134.5 0.5481224127831610P 52.460.312M36140 I一+1.81.0 0.76一 +0.76+0.74,+0.6230032553029441543633644.5 0.554136413303701270.868.316M36160 ：_ +181.0 0.76一+0 76一+0 74“ +0 6235037759534247044214225 0.5601544138243012103.599.816M36170 I+2 01.0 0.76+0 76+0 74+0 6240042667038652544734745 0.566170484324841214213716M42180 IPg=64Kgf/cm2带有突出部和凹入部钢制对头法兰盘DmDn士 0.5使用范围D3D2D1D武临圧力p （用tciooic的水札忌】24孫2K忙（U內 舟沧厕泥虑于九叭严-16所示时量大丄柞压力&2S0Tlil内Kg/cm215i 3C0T.以内13公称宵径Dg mm）1D-600