图6-15盘承套管表6-20盘承套管尺寸　　　(mm)DNedLu重量/kgPN10PN16PN251007.213013011.411.412.41507.818313516.716.717.72008.423514022.722.224.2250928814529.428.932.93009.634015042.441.947.435010.239315550.253.461.240010.844516060.265.276.245011.449816570.680.691.9500125501708...[继续阅读]

    e1＝12(0.5+0.001DN)最小值均为7mme2＝12(0.5+0.001dn)最小值均为7mmLu＝2.15DN-1.85dn+60DN1200～2600mm图6-44双盘渐缩管表6-49双盘渐缩管尺寸　　　(mm)大径小径Lu重量/kgDNe1dne2PN10PN16PN25PN401007.28072009.39.39.89.81257.51007.220011.311.312.513.81507.81257.5200141412.51...[继续阅读]

    图4-1T型接口球墨铸铁管表4-1T型接口球墨铸铁管重量公称直径DN/mm壁厚e/mm承口凸部近似重量/kg直部重量/kg·m-1总重量/kg标准工作长度Lu/m3455.5678.1594061.86.622-------502.1826-------602.49.4-40505459--87652.510.1-43535863--93803.412.2-52647177--1131004.314.9-64...[继续阅读]

    图3-5法兰盘表3-6PN10法兰盘接口尺寸　　　(mm)DND1D2D3DECF8010015020020022028534016018024029513215621126698118170222191919203333续表3-6DND1D2D3DECF2503003504004004555055653504004605153193704294802743263784292224.524.524.534444505006007006156707808955656207258405305826827944...[继续阅读]

    图6-29盘承套管表6-34盘承套管尺寸　　　(mm)DNedLu重量/kgPN10PN16PN251007.213013016.416.416.41507.818313523.223.224.22008.423514031.130.832.9250928814541.040.444.33009.634015051.250.856.435010.239315560.963.671.940010.844516071.777.388.65001255017095.611112360013.2655180125...[继续阅读]

    图7-10NⅡ型接口用支撑圈表7-9NⅡ型接口用支撑圈尺寸　　　(mm)DNHlD100131211515016720021925014122713003233503754004265001512529600632700735...[继续阅读]

    强度试验前应具备下列条件:(1)试验用的压力计及温度记录仪应在校验有效期内。(2)试验方案已经批准,有可靠的通信系统和安全保障措施,已进行了技术交底。(3)管道焊接检验,清扫合格。(4)埋地管道回填土宜回填至管上方0.5m以上,并...[继续阅读]

    PE是一种无毒材料,在塑料管、铝塑复合管和钢塑复合管生产方面得到广泛应用。新兴铸管公司将PE膜热覆在球墨铸铁管内表面,形成一层防腐层,达到了铁塑复合的效果。内覆PE膜球墨铸铁管以其优良的卫生性能更适合于输送直接饮用...[继续阅读]

    图7-7K型接口用橡胶圈表7-6K型接口用橡胶圈尺寸　　　(mm)DND1D2D3LMNab10011611111451564415016716211451564420021821311451564425026926411451564430031931215491884435037036315491884440042041315491884445047146515491884450052151415491884460062261515491884470072371618612111448008258181...[继续阅读]

    e=12(0.5+0.001DN)最小值为7mmLu＝20+DN图6-3双承和承插90°(1/4)弯管表6-5双承和承插90°(1/4)弯管尺寸　　　(mm)DNeLuL′u重量/kg双承承插8071002808.691007.212030011.411.91257.514532515.714.41507.817035020.521.42008.42204003334.2250927045048.554.13009.63205006869.635010.2370...[继续阅读]