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    广泛应用于城市排水、排污、农田灌溉、旧管修复、厂矿通气排风、公路铁路桥梁等领域。
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    HDPE大连双壁波纹管
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    高密度聚乙烯(HDPE)双壁波纹管，是一种具有环状结构外壁和平滑内壁的新型管材，80年代初在德国首先研制成功。经过十多年的发展和完善，已经由单一的品种发展到完整的产品系列。
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    克拉管
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    克拉管产品可分为PR、OP、SQ、VW四种系列，其中： PR、OP-主要用做埋地排水管道， SQ-主要用于制造容器或窨井， VW-主要用于三通、弯头、二次加工成型的管件
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    HDPE双壁波纹管
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    广泛应用于城市排水、排污、农田灌溉、旧管修复、厂矿通气排风、公路铁路桥梁等领域。高密度聚乙烯(HDPE)具有优异的化学稳定性、耐老化及耐环境应力开裂的性能。由其为原材料生产出来的HDPE双壁波纹管属于柔性管。其要性能如下：
抗外压能力强
外壁呈环形波纹状结构，大大增强了管材的环刚度，从而增强了管道对土壤负荷的抵抗力，在这个性能方面，HDPE双壁波纹管与其他管材相比较具有明显的优势。
工程造价低
在同等负荷的条件下，HDPE双壁波纹管只需要较薄的管壁就可以满足要求。因此，与同材质规格的实壁管相比，能节约一半左右的原材料，所以HDPE双壁波纹管造价也较低。这是该管材的又一个很突出的特点。
施工方便
由于HDPE双壁波纹管重量轻，搬运和连接都很方便，所以施工快捷、维护工作简单。在工期紧和施工
条件差的情况况下，其优势更加明显。
摩阻系数小，流量大
采用HDPE为材料的HDPE双壁波纹管比相同口径的其他管材可通过更大的流量。换言之，相同的流量要求下，可采用口径相对较小的HDPE双壁波纹管。
耐低温抗冲击性能
HDPE双壁波纹管的脆化温度是-70℃。一般低温条件下(-30℃以上)施工时不必采取特殊保护措施，冬季施工方便，而且，HDPE双壁波纹管有良好的抗冲击性。
化学稳定性佳
由于HDPE分子没有极性，所以化学稳定性极好。除少数的强氧化剂外，大多数化学介质对其不起破坏作用。一般使用环境的土壤、电力、酸碱因素都不会使该管道破坏，不滋生细菌，不结垢，其流通面积不会随运行时间增加而减少。
使用寿命长
在不受阳光紫外线条件下，HDPE的双壁波纹管的使用年限可达50年以上。
优异的耐磨性能
德国曾用试验证明，HDPE的耐磨性甚至比钢管还要高几倍。
适当的挠曲度
一定长度的HDPE双壁波纹管轴向可略为挠曲，不受地面一定程度的不均匀沉降的影响，可以不用管件就直接铺在略为不直的沟槽内等等。
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.rtbar_shwx{top:-50px;}
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