圖6-15盤承套管表6-20盤承套管尺寸　　　(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...[繼續(xù)閱讀]

    e1＝12(0.5+0.001DN)最小值均為7mme2＝12(0.5+0.001dn)最小值均為7mmLu＝2.15DN-1.85dn+60DN1200～2600mm圖6-44雙盤漸縮管表6-49雙盤漸縮管尺寸　　　(mm)大徑小徑Lu重量/kgDNe1dne2PN10PN16PN25PN401007.28072009.39.39.89.81257.51007.220011.311.312.513.81507.81257.5200141412.51...[繼續(xù)閱讀]

    圖4-1T型接口球墨鑄鐵管表4-1T型接口球墨鑄鐵管重量公稱直徑DN/mm壁厚e/mm承口凸部近似重量/kg直部重量/kg·m-1總重量/kg標準工作長度Lu/m3455.5678.1594061.86.622-------502.1826-------602.49.4-40505459--87652.510.1-43535863--93803.412.2-52647177--1131004.314.9-64...[繼續(xù)閱讀]

    圖3-5法蘭盤表3-6PN10法蘭盤接口尺寸　　　(mm)DND1D2D3DECF8010015020020022028534016018024029513215621126698118170222191919203333續(xù)表3-6DND1D2D3DECF2503003504004004555055653504004605153193704294802743263784292224.524.524.534444505006007006156707808955656207258405305826827944...[繼續(xù)閱讀]

    圖6-29盤承套管表6-34盤承套管尺寸　　　(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...[繼續(xù)閱讀]

    圖7-10NⅡ型接口用支撐圈表7-9NⅡ型接口用支撐圈尺寸　　　(mm)DNHlD100131211515016720021925014122713003233503754004265001512529600632700735...[繼續(xù)閱讀]

    強度試驗前應具備下列條件:(1)試驗用的壓力計及溫度記錄儀應在校驗有效期內。(2)試驗方案已經批準,有可靠的通信系統(tǒng)和安全保障措施,已進行了技術交底。(3)管道焊接檢驗,清掃合格。(4)埋地管道回填土宜回填至管上方0.5m以上,并...[繼續(xù)閱讀]

    PE是一種無毒材料,在塑料管、鋁塑復合管和鋼塑復合管生產方面得到廣泛應用。新興鑄管公司將PE膜熱覆在球墨鑄鐵管內表面,形成一層防腐層,達到了鐵塑復合的效果。內覆PE膜球墨鑄鐵管以其優(yōu)良的衛(wèi)生性能更適合于輸送直接飲用...[繼續(xù)閱讀]

    圖7-7K型接口用橡膠圈表7-6K型接口用橡膠圈尺寸　　　(mm)DND1D2D3LMNab10011611111451564415016716211451564420021821311451564425026926411451564430031931215491884435037036315491884440042041315491884445047146515491884450052151415491884460062261515491884470072371618612111448008258181...[繼續(xù)閱讀]

    e=12(0.5+0.001DN)最小值為7mmLu＝20+DN圖6-3雙承和承插90°(1/4)彎管表6-5雙承和承插90°(1/4)彎管尺寸　　　(mm)DNeLuL′u重量/kg雙承承插8071002808.691007.212030011.411.91257.514532515.714.41507.817035020.521.42008.42204003334.2250927045048.554.13009.63205006869.635010.2370...[繼續(xù)閱讀]