Where is a high temp duct hose used
PU hose and PVC hose have their own advantages in different application scenarios. Therefore, it is impossible to simply say which one is more commonly used. Rather, it is necessary to choose the appropriate hose material according to the specific use of the environment and requirements.
PU hose and PVC hose in a number of aspects there are significant differences, the following is a comparison of the two:
Temperature range
PVC hoses typically have a temperature range of -5°C to 65°C. PU hoses have a wider temperature range. It can reach temperatures as low as -40°C and can withstand temperatures as high as 125°C for short periods of time.
Weather Resistance
PVC contains chlorine in its molecular structure and has some UV resistance. However, it is not as good as PU. PU material will not fade or deteriorate when exposed to sunlight for a long time. While PVC hose may suffer from yellowing and brittleness.
Abrasion resistance
PU hoses are more abrasion resistant than PVC hoses because the PU material has a higher resistance to abrasion. When pumping materials with large particles and high abrasion, PU hoses last longer.
Flexibility
For the same wall thickness and wire spacing, PU material is softer than PVC hose. However, PVC hoses may not be environmentally friendly in terms of softness if too many plasticizers are added.
Performance and application
PU hose is due to its excellent abrasion resistance, oil resistance, weather resistance and high elasticity. Therefore it is widely used in environments that need to withstand high friction and tensile stress. Such as petroleum, chemical, food and pharmaceutical transportation.PVC hose has good corrosion resistance, insulation and low cost. Therefore it is widely used in wire and cable protection, building drainage, ventilation and irrigation systems.
To summarize, PU hose and PVC hose differ significantly in terms of chemical composition, temperature range, weather resistance, abrasion resistance, softness and application areas. Therefore, when choosing the hose material, it should be selected according to the specific use environment and requirements.
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