What are the differences between PTFE imported pipe and domestic pipe?
Classification:
Industry dynamics
Author:
PFA tube little sister
Source:
Dankai
Release time:
2022-10-25
Visits:
The following points are the difference between PTFE corrugated pipe imported pipe and PTFE corrugated pipe domestic pipe
1:The color of PTFE bellows made from domestic materials is Milky White, while that made from imported materials is translucent.
2:The grades are different, and there should not be much difference in things made with the same molecular weight powder and the same production process. If the powder molecular weight is different, its performance must be different.

Figure 1: The left PTFE bellows is imported. The right PTFE bellows is made in China. Source: Dankai
3:Judging from the use of the valve, the gap is still very large. For example, the PTFE used in the valve seat of the ball valve: the upper limit of the use temperature of domestic PTFE: 260 degrees, while the imported DuPont
The maximum temperature of the product is 280 degrees. Other indicators are also very different, and prices are also very different.
4:The cleanliness may be slightly different. There is little difference between domestic A- class products and imported ones. Many domestic products are also exported to South Korea and Italy.

Figure 2: The left PTFE bellows is imported The right PTFE bellows is made in China Source: Dankai
5:There must be some differences. Domestic products are resistant to high temperature and corrosion resistance. They should be inferior to imported ones.
6:First of all, it can be said that the difference between imported and domestic materials lies in the average particle size of powder, for example, if the range of imported materials is 12~15, while the range of domestic materials is 12~15
The circumference is larger; There are also high requirements, such as electronic grade, the density of the material itself is no difference, temperature resistance is, but the difference is not big;

Figure 3: The left PTFE bellows is imported The right PTFE bellows is made in China Source: Dankai
7:For dispersed resins, there is still a big gap in relative density, particle diameter and comprehensive quality between China and foreign countries. Materials for cardiac repair surgery and cardiovascular reconstruction are still
Reliable abroad.
This article is originally created by Teflon's little sister. Welcome to pay attention and take you to grow knowledge together!
Key words:
Domestic, imported, bellows, ptfe, difference, such as, corrosion resistance, high temperature resistance
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