电容胶圈双密封管施工规范标准[详]

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1、......管材、管件要求和物理性能胶圈电熔双密封聚乙烯复合管材，分增强型和普通型管材等，其规格、尺寸和公称压力按下列表采用。管材基本尺寸、偏差及公称压力公称外径(mm)公称压力（MPa）0.60.81.01.41.62.02.53.5基本尺寸极限偏差公称壁厚及极限偏差（mm）50+1.24.55.51.26.5+1.56.5+1.563+1.25.75.5+1.26.5+1.56.5+1.575+1.24.55.0+1.26.0+1.26.5+1.57.0+1.590+1.44.35.45.5+1.56.0+1.57.0+1.57.0+1.5110+1.54.25.35.5+

2、1.56.3+1.57.0+1.57.0+1.58.5+1.510.0+1.5140+1.75.46.76.0+1.57.0+1.58.0+1.58.5+1.510.0+1.511.0+1.5160+2.06.27.76.5+1.58.0+1.59.0+1.59.5+1.511.0+2.012.5+2.0200+2.37.79.67.0+1.58.5+1.59.5+1.510.5+2.012.5+2.014.0+2.2225+2.58.610.88.0+1.59.5+1.510.5+2.012.0+2.013.0+2.0250+2.59.611.910.5+2.011.0+2.

3、012.0+2.213.5+2.215.0+2.2315+2.712.115.011.5+2.012.0+2.013.0+2.515.0+2.518.0+3.355+2.813.616.912.0+2.213.0+2.214.0+2.517.0+3.20.0+3.400+3.015.319.112.5+2.214.0+2.215.0+2.818.0+3.450+3.317.221.513.5+2.516.0+2.518.0+2.820.0+3.500+3.219.123.815.5+2.818.0+2.821.0+3.024.0+3.560+3.221.426.720.0+3.

4、024.0+3.026.0+3.0630+3.224.130.023.027.030.0学习参考......+3.0+3.0+3.0710+3.527.233.927.0+3.033.0+3.36.0+3.800+3.530.638.130.0+3.038.0+3.42.0+3.管件的公称压力PN胶圈电熔双密封聚乙烯复合供水管管件分为普通型管件和增强型管件，管件的不圆度应控制在公称外径的1.5%以内。管件的规格、尺寸见附录。管件类型管件公称外径dn(mm)≤200225250315355400450500560630710800普通型管件PN（MPa）1.61.0增强型管件PN

5、（MPa）3.52.52.01.6胶圈电熔双密封聚乙烯复合管所用增强金属丝表面应无油污、无锈斑、无灰垢等污物及无破损、无压痕等对使用有害的缺陷，金属丝的延伸率、抗拉强度、直径及其允许偏差应符合现行国家标准《胎圈用钢丝》GB/T14450的要求。芳纶纤维是一种合成有机聚合物高性能纤维，芳纶纤维强度应大于等于2500N/mm2，，断裂延伸率应大于等于3.3%。金属丝或纤维的缠绕角度范围应为53°～60°，按左旋与右旋方向交叉缠绕。金属丝的最小直径，断面最少金属丝条数见表一。表一复合中间层增强金属丝最小直径(mm)，断面最少金属丝条数（根）公称外径dn（mm）公称压力PN（MPa）1

6、.01.41.62.02.53.5条数丝径条数丝径条数丝径条数丝径条数丝径条数丝径50―200.6260.6320.663―280.6360.6440.675―240.6360.6480.6660.690―400.6600.6800.61100.6110440.6600.6600.6840.6660.8840.8140600.6800.6800.61200.61000.81001.0160680.6960.6960.61300.61160.81241.02001100.61100.81100.81400.81301.01801.22251000.81400.81400.8150

7、0.81501.02501200.81600.81600.81441.01801.0学习参考......3152100.82101.02101.03001.03001.23552001.02401.12401.13301.13601.24002501.03001.13001.13001.24502701.03901.13901.13901.25003401.04001.24001.24001.45602801.24001.44001.46303401.24401.44401.47104201