Comparison of corrosion resistance of polytetrafluoroethylene lining and how to choose good quality

- Apr 17, 2019-

Polytetrafluoroethylene lining, which is a specific type of pipe, and will be used in some occasions, so it is necessary to have a thorough and in-depth understanding to use this pipe correctly and reasonably. Moreover, this can also achieve full utilization of the product, avoiding problems such as product waste.

1. How to choose the quality of polytetrafluoroethylene lining?

Polytetrafluoroethylene lining want to be selected for good quality. It is necessary to do the following two points: First, clearly understand the use requirements, determine the price range of products that they can withstand, and further narrow down the selection range; Choose professional and regular manufacturers, so as to ensure product quality and product performance, and thus ensure the use of the product.

2. What are the requirements for polytetrafluoroethylene lining?

The details on the polytetrafluoroethylene lining are: polytetrafluoroethylene lining, which can be used in high temperature environment, and has good performance, and it can also withstand low temperature, it has good mechanical Performance and toughness. In use, it can be simple and convenient, and can be used normally under high temperature and low temperature. In addition, because of its sufficient thickness, its penetration resistance is also very good. However, it should be noted that the polytetrafluoroethylene lining has poor melt flowability, and its internal coating needs to reach a certain thickness to have good corrosion resistance.

In addition, the lining of the polytetrafluoroethylene lining is either a loose lining or a tight lining. Which one is chosen depends on the actual situation. The products using lining technology mainly include straight pipes, elbows, tees, crosses and reducers, which can meet the anti-corrosion requirements of different industries.

3. Can polytetrafluoroethylene lining and other composite tubes transport corrosive media? Does chlorine gas corrode polytetrafluoroethylene lining?

Polytetrafluoroethylene lining, from a professional point of view, it can be used to transport strong corrosive gases or liquids at high temperatures, while steel polyfluoride-based composite pipe is a composite pipe that can be used to transport temperatures between -40 ° C - Corrosive medium in the range of 150 ° C, so although steel-lined PTFE pipes and other composite pipes can transport corrosive media, the specific environment and conditions are different, and there are differences.

Polytetrafluoroethylene lining, which has very good corrosion resistance and can resist strong chemical corrosion, so chlorine gas will not corrode polytetrafluoroethylene lining. However, this has the premise that the polytetrafluoroethylene lining is intact and It can be used normally. If there is a problem of cracking or falling off of the pipe or damage, the chlorine gas will corrode the polytetrafluoroethylene lining, because the corrosion resistance of the polytetrafluoroethylene lining is destroyed and it fails.