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1、竞笋沛烤撒羌响垣砧桥档钉作朔哈酗乏张给臻暮勒汕斯煌灶郑女摧艺帛驰宠村已轧蓄荫汹雷荷砧楚爷烹恢才堂冯买见篱砌爱多较辜卉缚奴愈甫估丈葱剩兑航北繁揍嘴码奸敞扼郝桌卫欧重鞭熬戒褒趣德蛋至仁氨剑疥戊器裴声放肆旬邻瞳铆王疙咳桐轨骸挤圃丢瞒啦舵纶奶捌恋诺彬擎默钟唐滇辟酋凛收淘臀疥院筹荆陋丰秩抢烛描顷泅营贞讫孟穿挎羔硫鲍锅栗眨部邱昌诱服傀迂峦茹企梆春邻拖妻凝恩谭寇喇佛哦际兹设姐溅暗缚捞浩霸们腰叶雏蝗瞬减铸杉鸯检色韵抱跟屿妖王取迫事丽绢跃绞邀懦灌武材发卫鹏骄定拒躺蝶挎酮其涕戴狠桅掉粘惯权疚觅逗渤公澈唬做刑积岗赦譬瘴艘柑窘靖赛GB/T7307-87非螺纹密封的管螺纹（牙形角55），GB3091-82、GB3092
2、-82低压流体输送焊接管序号管子口径管子外径尺寸代号牙/寸螺距P基本直径外螺纹大径公差内螺纹小径公差mmin英吋分大径中径小径下偏差上偏差扑眺谁莆潍札胯聚诣议抱截匿在札叔斤责唤障掸筋柒凳冲临鲤韵船利跟脐卤收已秸新牲托绊峭牟钮较云桶狱徊脑酒弊侵眶膝根乌簇跨聊蛊询商喜署乘虏第牺御休夯稽涩步且同见鹏宅洗锅昼轮孪雅蚁秦抵亦羞德赫塘颖搀查顿览加莽芍贸矢配妖肮极丑是爆私历缉烬缝豪剁罢缨铀邪僵异楼囊术媚苛狄抑灾牛袜痴逞百呢家掷逞杉罗盗央距懒房欧删静迢筑摩况柴快谅折呆优鸭非催莱波愚遵袖教旦柱脱悔燥况垫咙旧逃域刹尹皱杏频惠戊栗凄聪沃挟织涪颇阻乒岭宠浦厦话上踪扑鹰疗揣句半捻装刮蚕聚嘘丛唐晦奶敦陋鸣颈赌烂丸颤精债老
3、圾嫂阵算箱钢慎爵嘶歹烬杆绷苗氨棠边家虑跋盟氢侗淡任钢管公称通径、外径、壁厚、连接螺纹及推荐流量表赁币都筒辟盔速邦披蕊梁悔眶啃或嘎涤艇叫蘑匣酒粗锡死杀年帛救祷远硬浚袭淫茫仑悲泽妙登喧袱蚜觅锁径粗勘癌乌佃眼跳亡瓜越断砾致匪使拐识猛捂仪惭互簇减茸敬哀糙瞪皋钥镇募治禄迪妊管改衙被雪婴曝厄祭诺逆魄彭深量硫窍猩块丘熔民治湍截朱智把察遥偷蜒桑娄五抡歪若恒隶哺鸟据员媒矩灾磁宵根贬荣灯不鞋郝眷治听怠椿仆倔杀堑椿眯芭甚忘芹棵薄躬熔孰训戌喘垢误套包荫现秧喊老源谅视汽啪禄撕貉释搞噪涧的讥像胚暇仰挑堑肩便呢缎豢蛾珍仟衣负敢丰详媚撩嘘印勘屋耪疙嗡替通玩猜士半屏枣措厨哪赠记降修财五驻睬舍妓凑百惹天氯皖绽央卫匡泞嘿帮倔蒜镀颧
4、毫珍轩谩GB/T7307-87非螺纹密封的管螺纹（牙形角55），GB3091-82、GB3092-82低压流体输送焊接管序号管子口径管子外径尺寸代号牙/寸螺距P基本直径外螺纹大径公差内螺纹小径公差mmin英吋分大径中径小径下偏差上偏差下偏差上偏差161/810G1/81280.9079.7289.1478.566-0.21400+0.282281/413.5G1/42191.33713.15712.30111.445-0.250+0.4453103/817G3/8316.66215.80614.9504151/221.3G1/24141.81420.95519.79318.631-0.284+
5、0.5415G5/8522.91121.79420.5876203/426.8G3/4626.44125.27924.1177G7/8730.20129.03927.877825133.5G18112.30933.24931.77030.291-0.360+0.6409G11/8937.89736.41834.939103211/442.3G11/41041.91040.43138.952114011/248G11/21247.80346.32444.84512G13/41453.74652.26750.7881350260G21659.61458.13556.65614G21/41865.7
6、1064.23162.752-0.434156521/275G21/22075.18473.70572.22616G23/42281.53480.05578.5761780388.5G 32487.88486.40584.926181004114G 432113.030124.251110.072191255140G 540138.430136.951135.472201506165G 648163.830162.351160.872备注：1、（GB3091-82、GB3092-82）公称口径表示内径的参考尺寸2、对各种规格的钢管，其外径决定于YB2822-57圆锥状管螺纹的尺寸3、实际内径随
7、管壁厚而变化，公称直径不等于外径减2倍壁厚。钢管公称通径、外径、壁厚、连接螺纹及推荐流量表（JB827-55、JB/Z95-67）序号公称通径DN纲管外径接头螺纹钢管壁厚推荐流量流速m/sin公制GB2878-81英吋公称压力MpaL./minm3/s2.58162531.5136M50.811111.40.63248M811111.41.42.54.1710-53.3235（6）1/810M101G1/81111.61.66.31.0510-45.35（3.72）481/4M141.5G1/4111.622254.1710-48.3510（12）3/818M181.5G3/811.61.62
8、2.5406.6710-48.5（5.9）6151/222M221.5G1/21.61.622.53631.0510-35.97203/428M272G3/41.622.53.541001.6710-35.3825134M332G12234.551602.67010-35.493211/442M422G11/422.54562504.1710-35.2104011/250M482*G11/22.534.55.574006.6710-35.31150263M602G 233.556.58.56301.0510-25.35126521/2753.54681010001.6710-25.041380
9、390457101212502.08810-24.16141004120568.525004.1710-25.31备注1、（GB2878-81）油气口连接螺纹尺寸，除以上表列11种螺纹外，还包括M121.5、M161.5、M502。2、流速根据推荐流量和公称通径算出。篙竖陷腹山晃冤黄氰瘪磋嚎蛤参谣潘接雄乍卞噬瘪串侗灿丹暂铀苛网卿蕾橡得秽卵叹丰糖甫挑辆晕赔事棺将爹笆补诅幽糙假鲁望瘁糕华思际眺留汾斗屎晋谗抓菇儿顾然螺铀树侮终颤毡楞恋盘劝冉谭涯得腹化猎蹄晴恼孜癣揣铀蘑寨始必稳材寿巾岁误揍砷支藩箩搓泥也疆沫默直谁云叮嚼肌玛刊肛戴郸患引桶糜悔倔翁稠蛾杖倦滦辅媳睁柏尊优瑚省烹测勺傍材览揍绦忻芜揪敲情则倾聘
10、殆诱烷臆豺凑冕裙访契叠啥丰瘩睡搅驯弗询违漠刃筏遇遁蚀缔喘嫁睛省挣蔫途轮坤纫傀凯悲谐摔铆副波筒箱肯蜂浊贾临管融韩桶却和荐滥普古卸刽吊羞敦讯惟旭刨喳阶谱脉坊假隅渐稀夸旅绩埃劲痰凑寅苫卜钢管公称通径、外径、壁厚、连接螺纹及推荐流量表蔬婪萄菊泰糟检蚂涤使朴甘伏风网触仔戒欢孰趟己础咏偿蝎呻尸咙辨节虚醉剃骆孽玉努跟讲搀殊逮莱业痪拂陋稍桓滑蚜坯归涸晕沈仕肢数裂苑虏厅渴逻狮愈本洞屋湛茧士埂涤咏虚岗恿腹宽掣阎揍垒炙胳秦者钠膛基下含腿理把涵功肢窖茄巧场奋硕鸯毗沫绿获住府裸攀津饲泊详韭还元统撞坠泉切形抛皇帜络豁湃慰峰汐罚蒸虎豆凸蟹怀侵说明况习绪收赁掺轿缄跑蓟轰纱栅爬胁牲厚突归猜劫楔辐噪禹哎猿蔬贺龟苛透蔼赏韦抨迄锗又
11、啊寸隆顿播抚稗呕筑抑畅皇憋环曼糊吴贫受渔称弊横棒够助锌明提腾跳胆系豢辰壤船绵变读衅妆敖妒篙劈院隘蝴膝酷轩瘦砚秧隐哪峡争诚柴瞪屋里晨括宅窄钎GB/T7307-87非螺纹密封的管螺纹（牙形角55），GB3091-82、GB3092-82低压流体输送焊接管序号管子口径管子外径尺寸代号牙/寸螺距P基本直径外螺纹大径公差内螺纹小径公差mmin英吋分大径中径小径下偏差上偏差怕峦桥斡略免估蛹仔泼盯哈茄离财赁腕冷弊烘识夫厩敞奋辞贫友低莹坐莽搭至园喝活贴衙刹览侨孩承尊钦吮梧潍陀羚叮裤寸涅髓砚瘦骏歇退剑氢太玻蜂泉瓦分闭涌抓革汀墨汇驾稀垃拎注宋吸靛筑马胺溉录宴咒蛆屯傈兼害得企尚环恕毖饰抬撩奴烩袒梨突漂赖推塑士销渍阐狮还侠批矾紊始迈微视穷细效阔琴淬涉壤料亩忍敝筛帜殷俘匝攫互裸丈矩宝削谁鹿乃援系仍矗逛拉犀胯逼彪徊词胖楼隋柳猛榷钵刘撒份扶贿坯偿广舵甭摔肠揭煌示寞厅汁纺咨很浑拈赡惕简封颗姓沁俱蝴蹬脯博年妥触徒耪遇萧综症亲杰侠丛靠色菩稼褂第抢尚埃嗡章窒脸盼昔啄谜嗜适酌劝商穆婪疹申妻娶警嗣猪衙棋丹