The company's choice of high-quality PE pipe fittings can ensure the safety of the project. How to choose high quality can be considered from the following aspects:
1. Appearance inspection:
· High-quality PE pipe appearance should be smooth, uniform color, no dents, pores, impurities and other defects. There is no star selection after the incision.
2. Material identification:
· High quality PE pipe is made of polyethylene material, low density and heavy. The amount is light, no odor after cooling, and will float or suspend in water. Poor quality PE pipes may have a pungent smell and sink to the bottom when placed in water.
3. Wall thickness uniformity:
· High-quality PE pipe wall thickness is uniform, no porosity, half of the welding area is still dense and no bubbles.
4. Welding quality:
· The welding seam of high-quality PE pipe should be smooth and symmetrical along the entire circumference of the pipe, the minimum depth of flanging should not be lower than the surface of the pipe, and the amount of wrong edges at any point of the outer circumference adjacent to flanging on both sides of the weld should not exceed 10% of the wall thickness of the pipe, and the flanging should be solid and smooth, and the root should be wide. There should be no impurities, small holes, distortion and damage on the lower side of flanging.
5. Olfactory discrimination:
· High-quality PE pipe should have a light 'micro plastic smell after processing or heating melting, and no odor after cooling. Poor quality PE tubes may have a pungent odor.
6. Burning flame:
· High quality PE tube burns and melts steadily, and the flame base is light. Blue, no odor. Poor quality PE pipe burning unstable melt drop irregular, may have a small amount of black smoke and odor.
7. Elongation at break:
· High-quality PE pipe elongation at break is high, indicating that the better the product flexibility, the better the performance. Poor PE pipe elongation at break is low, easy to break, poor toughness.
8. Oxidation induction time:
· High quality PE tube oxidation induction time is long, indicating that the better the product aging resistance, the better the performance. Poor quality PE pipe oxidation induction time is short, poor aging resistance.
9. Manufacturer selection:
· Choose well-known and reputable PE pipe manufacturers, which
The quality of the products of some manufacturers is usually more guaranteed.
10. Price comparison:
· When comparing the price, factors such as the material, specifications and production process of the pipe should be considered, and cost-effective products should be selected.
Through the above method, the quality of PE pipe fittings can be more accurately judged, and high-quality products can be selected to ensure the safety and long-term use of the project.
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