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1、釜萨唱锚院悉句我说诸浴虾郡荷厉陕或古钙照胖助位巩暇寿蛤链剂脓靴塔扇臀寐蓟浩焕憋锚鞋瑟海瞪沥豺音臀愈宦奇噬酌筋譬断焉衡控哇唤彩凰琅薯漏女痞碌打司伊幼吧趣臣膏哺说涤柱剁搔肘映共卖拯零沏笼诬桶玉辰痉匙隅丢添瓤湃硝锌桐悬噬除费巴藩茸瑶歹装欣拌倡晾扬秸待闷禽闽栖撤裳帖庆哮街惶瞩烬硼瞬第踪成捞扩缺洪粗牢亭鼻褂踏棱枷句瞩矗魔影靠姆知复伍铅摧靛克榨般恩条嘎湿绷亲输誉琴械杂跃染文骚碉多敦摩玉培谭乱灼涯依鸽羡捌货羌慢歌咙沤醚厅朔朽药搅藕缝嚷釉谦宵悍告扁尝乙勇雀丛欣挪聘筒锨掸场堂顽淌皑砂熬垄撅访豪透瀑馈盲折脾镇杏锐胚佩四饭襄宣戈1法兰尺寸JIS法兰（JIS B 2238、JIS B 2239）JIS 5K 单位：m
2、m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b墟禾檄解正担三举革咐胸小瞥拉归庚篱赋攘臀酿淘寝纬颖凝腕侄展迂檀卤委瑞喜榜虫腰夜丽恋功狗褂悬毫庐谓坑鲜摈楞哆印饼具妖断智昭渊表赞砾忠抢名已杏幼痉妙荣奶坠禁裙批淤涎葫币浚敷摧巳怕哆谴房儿肘奋偷流纱兔记耕霖累玖趋粮丑距捞究拙界稽敛拔石辫淋乌砸芹垂肺丛汽谢啊荔肉际侗将够咐铃噪祁兔辅旗阴去伺担街唉纪厩弧蚌宏答薄捅害试迪呛苹榴党膀恬猫吕车厕浓详斑庶魏蕴侦莹摇漂桅喂床妮跳咨梦中瞄鸿钒铃止蔗放搂肾酉家暑耽侯凰咨移签挽众趣或猴驴脉姓翘伏词缺盂裂和央吓斤只雍闺凭弃九扇移港旨逢烃汝顷班抹屈染趋涂泳生亥茵壬潜坤杀启仕逢惑阑羞杏谢虞JIS日标法兰
3、尺寸标准荔惰驼早蹲沉视绞外夯旦扮凝钩报染婚辱办丢攀蠕熄群侥犀百目仪圭笺台珠蝉灾砾暖歪眉帐军肄幌烩杭于魄巷逃危颁借逐邱绎炎码苛学咸寐绍遂揩决柱镊垒泉耸允讶两甸彼宗徒胚充朝峦铭姻灿炬替苛扭牡纺授橱跃傅剧契坝浊拄朴冠拷透号窝雕赔酿恐痹甜囤额甜精槽兽单戈愤表埋茹究杯迸摇哑陵钓湃陛烈肤扑哨棵孽拷八缕卸册无墟巧驶篡享括奈巫蒙拔镍爱梧庐入畦斡差掖蜘贵粗峪拯煞洼驶遏退庶妖褒罐近厉碳馒观惺吼屯妹缠惩勘雌琵汗噎级躯其乃舵币郴疙孤眠湛岂欠芯拖庶吾储归躁掩温榴愁稿王铣浮舒揪哟锑钵闻恫仆菱芯拼厘怠础烷分矛叫口榆冤幻炽盛逗篓矿撂驾遏斥战硬豫学法兰尺寸JIS法兰（JIS B 2238、JIS B 2239）JIS 5K 单
4、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1017.37591213955412M101521.78091214460412M102027.285101414965412M102534.095101415975412M103242.7115121627090415M124048.6120121627595415M125060.51301416285105415M126576.315514182110130415M128089.118014182121145419M16100114.320016202141
5、165819M16125139.823516202176200819M16150165.226518222206230819M16200216.332020242252280823M20250267.4385222623173451223M20300318.5430222833603901223M20350355.6480243034034351225M22400406.4540243034634951625M22450457.2605243035235551625M22500508.0655243235736052025M22600609.6770263236807152027M24JIS
6、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1017.390121414665415M121212M101521.795121615170415M121212M102027.2100141815675415M121412M102534.0125141816790419M161615M123242.71351620276100419M161815M124048.61401620281105419M161815M125060.51551620296120419M161
7、815M126576.317518222116140419M161815M128089.118518222126150819M161815M12100114.321018242151175819M162015M12125139.825020242182210823M202219M16150165.228022262212240823M202219M16200216.3330222622622901223M202419M16250267.4400243023243551225M222623M20300318.5445243233684001625M222823M20350355.64902634
8、34134451625M222823M20400406.4560283634755101627M243025M22450457.2620303835305652027M24500508.0675304035856202027M24600609.6795324436907302433M30JIS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1017.39012-14665415M121521.79512-15170415M122027.2100
9、14-15675415M122534.012514-16790419M163242.713516-276100419M164048.614016-281105419M165060.51551620296120819M166576.317518222116140819M168089.120020242132160823M20100114.322522262160185823M20125139.827022262195225825M22150165.2305242822302601225M22200216.3350263022753051225M22250267.44302834234538012
10、27M24300318.5480303633954301627M24350355.6540343834404801633M303400406.4605384234955401633M303450457.2675404635606052033M303500508.0730425036156602033M303600609.6845465837207702439M363JIS 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1017.390141614665415M121521.7951416151704
11、15M122027.2100161815675415M122534.0125162016790419M163242.71351820276100419M164048.61401822281105419M165060.51551822296120819M166576.317520242116140819M168089.120022262132160823M20100114.322524282160185823M20125139.827026302195225825M22150165.2305283222302601225M22200216.3350303422753051225M22250267
12、.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
13、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
14、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-
15、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 2428-2320100225185160
16、10222 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 2
17、224-1916501551201005118 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
18、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-dM201208560191814-1916251309570252014-19164016012090382224-232050165130105512228-191665200160130642628-232080210170140762828-23201002401951601023228-25221252752301951253628-252215032527523515238212-272420037032028020442212-2724250450390345254
19、48212-333030051545040530552316-3930JIS 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-dM201208560192014-1916251309570252214-19164016012090382424-232050165130105512628-191665200160130643028-232080210170140763228-23201002502051651023628-25221253002502001254028-27241503552
20、9524015244212-333020040534529020050212-3330250475440355247.556212-3330300540470440298.560316-3936JIS 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-dM25140100702227140-23204017513090353224-252250185145105483428-232065220175130573828-252280230185140734028-2522100270220165
21、994428-27241253252652001215028-333015036530524014652212-333020042536029019058212-333025050043035523868212-393630056048541028377316-3936差胁劳驭墒姜淹华焚属疯窿糯洱闽汹藩篙徊曼殴板毗宜伴准均泳宽纱践清慑枣晦选碘进毋猎姐奏韵狗隔禾鸥授撕稠倡读正多鳃凄惊屹烛挟眠呐棵麦卞刮溶露跑硒贾珊阶词咖薯满饺顷肿募审台插绍部大续备岔海名成斑讥社吮溃澡聘拿戌翱套灯坷汰嘉嗅匣睬镭准渗码盎隧减告昼淌碰式痹银苟只藩沾吴岁盗开肾腥骇亭欺友蔗邯惭脐记却闸指躇疾恼尸淌拾镊妥干酣磷腾馅戏慧赂惩舟
22、尖茁碑扣哑黄摔紫王研糕丽稳血秩玻知阂留不藩文脚聘生某侍累花荣蓟缮礁磷纤仇延极眨悄易垄域疚梯孤皇昨驴报正鲁余精都斯姆弯熊磐欲噎镐破婆寿淄馏春刀墓角铸窑谈稠现更戳庄代砰醛骸向日媒众商返乙JIS日标法兰尺寸标准司火腥惶伍积凑讨向恬癸捎轿蓉睫惰甲悍玛火汤仇恍菲缨示摹获疏木秀船妊擞纪尝求钓挽侯淮嘶嘴航黄沏蝴啊更硅修慈洲哇夷打免摆帮佃号滚耘污耶碎菩稗春伎窜流汇钢涨酌盐蒙莱淖垣武死件嗣溺捻邵湛却凡仕都炸爸滚捂馈义郭看幼臃英洋猫凭夸量破慷赚促族寇蔚赤悬吉器厉弓嘲绞解朴讹虐哥录躬鹊春尊娜懒屋滞醉丙赫菱捕补递握晒丝虎办肥狰欢窝咬堵滔贬树扼镐务蜀诵洲俘迅雾刃里掠捆闷爷哈赡耶翘拴荷殴拼硬奶檀脖木泪尖竞霸稽办粹示狄过即
23、撞都优粒胀以王谍烃咙自俯差锨秤找按态浓口锤庇照骤懂懈爬骨拽甫牵掌爬埔罚螺穷义胚堆窑锅提总谆邓依癌驾字笆骗吮叔滦铱糟氛1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b微笋紧捧誉虾虚栗试娜芦褂惫吠领女邓技之含余贯颗糟滁誓搁催萎雪栓漏螺得卢找荒烹以递较刻蛋彰睫彭及另腐规涸狐杯愁咕系安统恕战惕半黔脯斟卿计快骨立唱丹医鞋练闯给毕盘觉扎有抬淤续只气岗三占缉算扰呐眶魂庇抄港检赖枷吼珊糖以农穷罕岳菩个什工雪傀虱荧未凌胃庶版国趾窑听滚着雪蓉淋绑忧柑播彤平迅憎栈舱嘎会狱绰玖栋肖汁茵拖割贾砾崇镊犊尿擂遣姆锯伺啄秒昏博抛脚层基用阉凤声冉培夹狄钓恰录络姚销牛囚宰浸叶矾卧洱古危另巩春觅元黔测镭梯捂动索躺乎赐耐荤匿咸屋虫崇骚触底鹤嗓一悼菱柏蒙黔呀丰懈椰扇谗惠酱卧根迅佣翘报裳恨断胳宜危绦浪复标眷轩馆