JIS日标法兰尺寸标准.doc

法兰尺寸JIS法兰（JIS B 2238、JIS B 2239）JIS 5K 单位：mm口径DN适 用 的钢管外径法兰外径D法兰各部分尺寸螺栓孔螺栓的螺纹尺寸bf直径D2中心圆直径D1数量z直径d灰铸铁以外灰铸铁1017.37591213955412M101521.78091214460412M102027.285101414965412M102534.095101415975412M103242.7115121627090415M124048.6120121627595415M125060.51301416285105415M126576128089.118014182121145419M16100114.320016202141165819M16125139.823516202176200819M16150165.226518222206230819M16200216.332020242252280823M20250267.4385222623173451223M20300318.5430222833603901223M20350355.6480243034034351225M22400406.4540243034634951625M22450457.2605243035235551625M22500508.0655243235736052025M22600609.6770263236807152027M24JIS 10K 单位：mm口径DN适 用 的钢管外径法兰外径D法兰各部分尺寸螺栓孔螺栓的螺纹尺寸薄型法兰bf直径D2中心圆直径D1数量z直径d灰铸铁螺栓的孔径螺栓的尺寸灰铸铁以外灰铸铁1017.390121414665415M121212M101521.795121615170415M121212M102027.2100141815675415M121412M102534.0125141816790419M161615M123242.71351620276100419M161815M124048.61401620281105419M161815M125060.51551620296120419M161815M126576.317518222116140419M161815M128089.118518222126150819M161815M12100114.321018242151175819M162015M12125139.825020242182210823M202219M16150165.228022262212240823M202219M16200216.3330222622622901223M202419M16250267.4400243023243551225M222623M20300318.5445243233684001625M222823M20350355.6490263434134451625M222823M20400406.4560283634755101627M243025M22450457.2620303835305652027M24500508.0675304035856202027M24600609.6795324436907302433M30JIS法兰（JIS B 2238、JIS B 2239）JIS 16K 单位：mm口径DN适 用 的钢管外径法兰外径D法兰各部分尺寸螺栓孔螺栓的螺纹尺寸bf直径D2中心圆直径D1数量z直径d灰铸铁以外灰铸铁1017.39012-14665415M121521.79512-15170415M122027.210014-15675415M122534.012514-16790419M163242.713516-276100419M164048.614016-281105419M165060.51551620296120819M166576.317518222116140819M168089.120020242132160823M20100114.322522262160185823M20125139.827022262195225825M22150165.2305242822302601225M22200216.3350263022753051225M22250267.4430283423453801227M24300318.5480303633954301627M24350355.6540343834404801633M303400406.4605384234955401633M303450457.2675404635606052033M303500508.0730425036156602033M303600609.6845465837207702439M363JIS 20K 单位：mm口径DN适 用 的钢管外径法兰外径D法兰各部分尺寸螺栓孔螺栓的螺纹尺寸bf直径D2中心圆直径D1数量z直径d灰铸铁以外灰铸铁1017.390141614665415M121521.795141615170415M122027.2100161815675415M122534.0125162016790419M163242.71351820276100419M164048.61401822281105419M165060.51551822296120819M166576.317520242116140819M168089.120022262132160823M20100114.322524282160185823M20125139.827026302195225825M22150165.2305283222302601225M22200216.3350303422753051225M22250267.4430343823453801227M24300318.5480364033954301627M24350355.6540404434404801633M303400406.4605465034955401633M303450457.2675485435606052033M303500508.0730505836156602033M303600609.6845546637207702439M363中美日承插孔尺寸和螺纹端尺寸SW NPT(Rc)规格承插孔尺寸螺纹端尺寸T（in）中国 JB美国 ANSI日本 JIS中国GB、日本JIS美国ANSIDNNPS（in）SL1SL1SL1Rc和PT牙形角55NPT牙形角6081/414.51014.19.614.39.61/4103/818.01017.69.617.99.63/8151/222.51021.89.622.29.61/2203/428.51127.112.727.712.73/425134.51233.812.734.512.7132143.01542.612.743.212.7140149.01548.712.749.112.7150261.01661.115.961.115.92说明：“Rc”、“PT”和“NPT”分别是中国、日本和美国密封锥管螺纹代号。JIS 10K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3t*fn-dM2010075581914 1814-15122512590702514 1814-191640140105853816 2024-1916501551201005116 2024-1916651751401206118 2224-1916801851501307618 2228-191610021017515510218 2428-191612525021018512520 2428-232015028024021515222 2628-232020033029026520422 2628-232025040035532525424 30212-252230041540037530524 32316-2522JIS 16K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3t*fn-dM2010075581914 1814-15122512560702514 1814-191640140105853816 2024-1916501551201005116 2028-1916651751401206418 2228-1916802001601357620 2428-232010022518516010222 2628-232012527022519512522 26212-252215030526023015224 28212-252220035030527520426 30212-252225043038034525428 34212-272430048043039530530 36316-2724JIS 20K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3t*fn-dM2010075581916 1814-15122512590702516 2014-191640140105853818 2224-1916501551201005118 2228-1916651751401206420 2428-1916802001601357622 2628-232010022518516010224 2828-232012527022519512526 30212-252215030526023015228 32212-252220035030527520430 34212-252225043038034525434 38212-272430048043039530536 40316-2724注：t值中较小值为钢及可锻铸铁法兰；较大值为铸铁法兰。JIS 30K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3t*fn-dM201208560191814-1916251309570252014-19164016012090382224-232050165130105512228-191665200160130642628-232080210170140762828-23201002401951601023228-25221252752301951253628-252215032527523515238212-272420037032028020442212-272425045039034525448212-333030051545040530552316-3930JIS 40K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3t*fn-dM201208560192014-1916251309570252214-19164016012090382424-232050165130105512628-191665200160130643028-232080210170140763228-23201002502051651023628-25221253002502001254028-272415035529524015244212-333020040534529020050212-3330250475440355247.556212-3330300540470440298.560316-3936JIS 63K、RF、FF 单位：mm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部分凸出高度螺栓孔数量与直径螺栓直径DNDD1D2D3tfn-dM25140100702227140-232040175