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What is the difference between PVC and HDPE?
2021-05-24 11:47:38
HDPE pipes and PVC pipes are different, for example raw materials, specifications, properties, applications

HDPE pipe is High density polyethylene pipe,be made of PE100 or PE4710

Puhui HDPE pipe DN315mm

PVC pipe is Polyvinyl chloride pipe

Puhui PVC pipe for water supply

The Difference:

1. Economical: The comprehensive cost of HDPE pipe and PVC pipe is relatively low, and the service life is longer.

2. Corrosion resistance[HDPE Pipe > PVC Pipe]: HDPE pipe has strong corrosion resistance and can withstand a variety of chemical substances in the soil; PVC pipe is relatively weak.

3. Connection method: HDPE pipe connection adopts butt fusion, electric fusion, flange connection, etc. PVC pipes and fittings are connected with adhesives, expansion joints, socket joints, etc.

4. Adaptation temperature[HDPE Pipe > PVC Pipe]: HDPE pipe temperature adaptability range can reach -60℃~40℃, high temperature resistance, strong UV resistance, PVC pipe temperature adaptability range is smaller than HDPE pipe

5. Hygiene[HDPE Pipe > PVC Pipe]: HDPE pipe is safe, non-toxic, non-irritating, and less harmful to the human body and the environment; PVC pipe waste pipe will release a large amount of heavy metal smoke and pollute the environment.

6. Impact resistance [HDPE Pipe > PVC Pipe]: HDPE pipe has good toughness, high strength and good impact resistance; PVC pipe is easy to crack under the impact of hard objects, and its fracture resistance to external forces is poor.

7. Flexibility [HDPE Pipe > PVC Pipe]: HDPE pipe is not easy to break when it is suitable for a variety of terrain and uneven settlement; PVC pipe has relatively weak flexibility.

8. Uses: HDPE pipes are generally used in outdoor projects; PVC pipes are generally used in indoors.
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