2023给水薄壁不锈钢管件用法兰及法兰接头

给水薄壁不锈钢管件用法兰及法兰接头II目 次前言 II11范引文件 1型参数 1公压力 1公尺寸 2薄不钢外径 2法类及号 2法类寸数 3兰型尺寸 4松式兰寸 4承式兰寸 4法盲尺寸 5螺法尺寸 6法接尺寸 6585.1材料 85.2法尺公差 95.3密面 10紧件垫片 10法与壁锈及管焊工艺 10法加制造 10611验验收 117.1检验 117.2验收 11志标记 118.1标志 118.2标记 119货求 11法的装防种规和料兰混淆 12法的装防运输储过中损坏 12法交时提品质明件 12PAGEPAGE10给水薄壁不锈钢管件用法兰及法兰接头范围GB/T1220GB/T152.44237GB/T4238GB/T9124钢制管法兰第一部份：ＰＮ系列GB/T9124钢制管法兰连接用紧固件GB/T4334GB/T7306.155GB/T1271660GB/T17186.1管法兰连接计算方法第一部份：基于强度与刚度的计算方法GB/T17186.2管法兰连接计算方法第二部份：基于泄漏率的计算方法GB/T19228.1不锈钢卡压式管件组件第一部份：卡压式管件GB/T19228.2GB/T1047管道元件公称尺寸的定义和选用GB/T1048GB/T11170GB191包装储运图示标志（GB/T191—2008，ISO780：1997，MOD）GB/T36019沟槽式管路连接件技术规范CJ/T152NB/T47008承压设备用碳素钢和合金钢锻件NB/T47009低温承压设备用合金钢锻件NB/T47010承压设备用不锈钢和耐热钢锻件公称压力的定义见GB/T1048。PN3：PN10PN16、PN25。公称尺寸的定义见GB/T1047。DN15：DN10、DN15DN20、DN25、DN32、DN40、DN50DN65、DN80DN100、DN125、DN150、DN200DN250、DN300。DN15~100GB/T19228.2DN65~300，GB/T36019CJ/T152。表1薄壁锈管称寸钢管径 单为mm公称尺寸DN薄壁不锈钢管外径Ⅰ系列外径Ⅱ系列外径Ⅲ系列外径DN1012.015.012.7DN1516.018.015.9DN2020.022.022.2DN2525.428.028.6DN3232.035.034.0DN4040.042.042.7DN5050.854.048.6DN6576.1DN8088.9DN100101.6108.0108.0DN125133.0DN150159.0DN200219.0DN250273.0DN300325.02表2法兰的类型及代号法兰类型名称松套式法兰承插式焊接法兰法兰类型代号SFCF法兰示意简图 法兰类型名称盲板法兰螺蚊法兰法兰类型代号MFRF法兰示意简图 不同压力等级法兰的尺寸按图1和表3的规定：dmK D dmK D Cff表3PN10PN16、PN25法封面寸 单为mm公称压PN公称压力PN10公称压力PN16公称压力PN25f公称尺DNDKdmL×nCDmKdmL×nCDKdmL×nCDN1080604014×4880604014×41080604014×4121.0DN1585654514×41085654514×41285654514×4141.0DN2095755814×41095755814×41295755814×4141.0DN25105856814×410105856814×412105856814×4141.0DN321301007818×4121301007818×4141301007818×4161.5DN401401108818×4121401108818×4141401108818×4161.5DN5015512510218×41215512510218×41415512510218×4161.5DN6517514512218×81417514512218×81617514512218×8182.0DN8019016013818×81419016013818×81619016013818×8182.0DN10021018015818×81421018015818×81622519016222×8182.0DN12524021018818×81624021018818×81826022018826×8202.0DN15027524021222×81627524021222×81829025021826×8202.0DN20033029526822×81633029526822×121835031027826×12202.0DN25038535032022×121839535532026×122041537033530×12242.0DN30043540037022×121845041037826×122047543039530×16242.0注：图1表4中Ｌ为法兰螺栓孔直径，n为法兰孔个数。2表dd图2松套式法兰(SF)表4Ⅰ、、系的兰型及寸 为mm所配系列薄壁不锈钢管公称通径Ⅰ系列外径（不锈钢管外径）Ⅱ系列外径（不锈钢管外径）Ⅲ系列外径（不锈钢管外径）公称压力PNdddDN1013.516.013.5DN1517.019.017.0DN2021.023.023.5DN2527.029.030.0DN3233.536.535.5DN4041.543.544.0DN5052.555.550.0DN6578.078.078.0DN8091.091.091.0DN100104.0110.0110.0DN125135.0135.0135.0DN150161.5161.5161.5DN200221.5221.5221.5DN250276.0276.0276.0DN300328.0328.0328.03表DwdE图3承插式法兰（CF）DwdE表5Ⅰ、、系的兰型及寸 为mm所配系列薄壁不锈钢管公称尺寸Ⅰ系列外径（不锈钢管法兰）Ⅱ系列外径（不锈钢管法兰）Ⅲ系列外径（不锈钢管法兰）公称压力PNDw+0.1+0.00dE±0.5Dw+0.1+0.00dE±0.5Dw+0.1+0.00dE±0.5DN1012.110.8315.112.1512.811.67DN1516.114.2318.115.2516.014.47DN2020.118.2322.119.1522.320.37DN2525.623.6328.225.2528.826.87DN3232.229.6335.232.2534.231.87DN4040.237.6442.239.2642.940.58DN5051.048.4454.251.2648.846.48DN6576.372.3476.372.3676.372.38DN8089.285.2489.285.2689.285.28DN100102.098.04108.3104.36102.098.08DN125133.4128.35133.4128.37133.4128.39DN150159.41535159.41537159.41539DN200219.52135219.52137219.52139DN250273.62665273.62667273.626611DN300325.63175325.63177325.631711C按图4表6要求：Cf图4法兰盲板(MF)f表6法兰板寸 单为公称外径CfDN106.01.0DN156.01.0DN206.01.0DN258.01.0DN328.01.5DN4010.01.5DN5010.01.5DN6512.01.5DN8012.01.5DN10012.01.5DN12514.02.0DN15014.02.0DN20016.02.0DN25016.02.0DN30018.02.0GB/T7306.1GB/T12716H57HDD1G图5螺纹法兰（RF）DD1G表7螺纹兰寸 为mm所配系列薄壁GD±0.5D1±0.5H±0.5DN10----DN151/2"28262DN203/4"32302DN251"40383DN321-1/4"50483DN401-1/2"58563DN502"70684DN652-1/2"88864DN803"99974DN1004"1241224GB/T19228.1（）GB/T360198DwDwzza(双)卡压式b(单)卡压式DwDwzz图6卡压式法兰接头（RF）表8Ⅰ、、系卡式兰接（、卡尺寸 为mm连接方式卡压式Ⅰ系列外径卡压式Ⅱ系列外径卡压式Ⅲ系列外径双卡双卡单卡双卡单卡公称尺（DNDwZ±2DwZ±2DwZ±2DwZ±2DwZ±2DN1012.0-15.025.015.020.012.7-12.7-DN1516.024.018.027.018.023.015.924.015.918.0DN2020.028.022.028.022.027.022.228.022.228.0DN2525.435.028.032.028.030.028.637.028.632.0DN3232.039.035.036.035.038.034.039.034.034.0DN4040.046.042.038.042.039.042.742.042.737.5DN5050.867.054.046.054.045.048.644.048.649.0DN6576.135.076.135.076.127.076.135.076.127.0DN8088.937.088.937.088.929.088.937.088.929.0DN100101.642.0108.043.0108.035.0108.043.0108.035.0DN125---------DN150----------DN200----------DN250----------DN300----------79DwzzDwzza沟槽式b直管式图7沟槽式与直管式法兰接头表9沟槽与管法接尺寸 为mmⅠ系列直管式Ⅱ系列直管式Ⅲ系列直管式沟槽式双卡双卡单卡双卡单卡公称尺寸（DN）DwZ±2DwZ±2DwZ±2DwZ±2DwZ±2DwZ±2DN1012.0-15.080.015.080.012.7-12.7---DN1516.080.018.080.018.080.015.980.015.980.0--DN2020.080.022.080.022.080.022.280.022.280.0--DN2525.490.028.090.028.090.028.690.028.690.0--DN3232.090.035.090.035.090.034.090.034.090.0--DN4040.090.042.090.042.090.042.790.042.790.0--DN5050.8100.054.0100.054.0100.048.6100.048.6100.0--DN6576.1130.076.1130.076.1130.076.1130.076.1130.076.170DN8088.9140.088.9140.088.9140.088.9140.088.9140.088.970DN100101.6150.0108.0150.0108.0150.0108.0150.0108.0150.0108.075DN125---------133.075DN150----------159.080DN200----------219.085DN250----------273.090DN300----------325.095要求材料10GB/T4237NB/T47008NB/TIIl表10法兰常用材料化学成份表序号统一数字代号牌号1S3040806Cr19Ni102S30403022Cr19Ni103S3160806Cr17Ni12Mo24S31603022Cr17Ni12Mo25S11972019Cr19Mo2NbTi法兰尺寸公差应按表11要求，未注公差及粗糙度应符合GB/T1084C级规定；表11法兰尺寸公差法兰项目法兰型式尺寸范围尺寸公差mm法兰外径(D)本标准所有型式法兰≦DN100+1.50+0.00DN125≧DN300+2.50+0.00法兰内径(d)螺纹法兰除外所有型式法兰≦DN100+0.50+0.00DN125≧DN300+1.00+0.00法兰厚度(C)本标准所有型式法兰≦DN300+0.50+0.00法兰密封面直径(dm)本标准所有型式法兰≦