HDPE double-wall corrugated pipe vs PVC double-wall corrugated pipe: the core difference is clear at a glance

In the fields of municipal drainage and construction engineering, HDPE double-wall corrugated pipe and PVC double-wall corrugated pipe are two common pipes. Although the appearance is similar, there are essential differences in raw materials, performance and application scenarios between the two. This article will analyze the differences from the three dimensions of raw materials, color and performance, and provide quick distinction skills. First, the difference in raw materials: HDPE has strong toughness, high rigidity of PVC Type raw material characteristics HDPE corrugated pipe high density polyethylene (HDPE) has good flexibility, low temperature resistance (-40 ° C), impact resistance, long-term use of non-brittle PVC corrugated pipe polyvinyl chloride (PVC) has high hardness, high temperature resistance (50 ° C), and strong acid and alkali resistance, but it is brittle and easy to break at low temperature

Scientific basis:

HDPE's elongation at break can reach more than 300%, while PVC is only about 50%. In long-term buried environments, HDPE can last up to 50 years, and PVC is about 20-30 years. 2. Appearance and color: black and white blue vs all white, easy to identify HDPE corrugated pipe Standard color scheme: outer layer black (anti-ultraviolet) + inner layer blue (for marking purposes) Touch: The pipe wall is soft, can be slightly bent without cracking Weight: Under the same specifications, HDPE is 30% lighter than PVC PVC corrugated pipe Standard color scheme: whole body white (or gray), no layered color Touch: The pipe wall is hard and brittle, and it is easy to break when bent hard. 3. Quick distinction skills Look at the color: outer layer black + inner layer blue = HDPE; whole body white = PVC bending Test: HDPE can be bent 15 without cracking, PVC is easy to break when bent. Listen to the sound: tap on the pipe wall, HDPE sound is dull Fourth, professional manufacturers recommend Hubei AD Building Materials Co., Ltd. as a leading enterprise in Central China, providing:

HDPE double-wall corrugated pipe: outer black and inner blue standard color scheme, ring stiffness SN8-SN16 optional PVC double-wall corrugated pipe: white/gray whole body pipe, excellent acid and alkali resistance supporting services: free pipe selection guidance, support customized color scheme