什么是PVC-U排水管?怎样区分规格?

2024-11-24 05:02:32
推荐回答(2个)
回答(1):

  PVC-U排水管指硬聚氯乙烯排水管,常用规格见下表。
  PVC指聚氯乙烯塑料,PVC-U中的U表示添加塑化剂。PVC-U管道是以卫生级聚氯乙烯(PVC)树脂为主要原料,加入适量的稳定剂、润滑剂、填充剂、增色剂等经塑料挤出机挤出成型和注塑机注塑成型,通过冷却、固化、定型、检验、包装等工序以完成管材。
  塑料管道(包括PVC-U排水管)的规格大多以 外径尺寸DE× 壁厚 表示,亦有以公称直径DN表示的。其常用规格及关系见下表:

  塑料管公称直径和外径对照表
  公称直径 塑料管外径
  DN 15  De 20
  DN 20  De 25
  DN 25  De 32
  DN 32  De 40
  DN 40  De 50
  DN 50  De 63
  DN 65  De 75
  DN 80  De 90
  DNlOO  De 110

回答(2):

据我在康乐所知,PVC-U管道是以卫生级聚氯乙烯(PVC)树脂为主要原料,加入适量的稳定剂、润滑剂、填充剂、增色剂等经塑料挤出机挤出成型和注塑机注塑成型,通过冷却、固化、定型、检验、包装等工序以完成管材、管件的生产。物化性能优良,耐化学腐蚀,抗冲强度高,流体阻力小,较同口径铸铁管流量提高30%,耐老化,使用寿命长,使用年限不低于50年,是建筑给排水的理想材料。

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