The material crystallizes at about 10 degrees, and the pp tube is used. How to solve it? If heating is used, what measures should be taken?

Wrap the oxygen bag and heat it with hot water or hot air.

Is it flammable? If it is flammable, it is recommended not to use PP pipe. If it is not flammable, it will crystallize at 10 degrees. It seems impossible. Hi.

You'd better use other material pipes and use heat tracing

TO JYLID Is the temperature of the electric heating tape adjustable? I haven’t used it before, can you give me a little more details? Thanks

The temperature of the electric heating tape is adjustable. There are many companies that provide electric heat tracing, and the technical difficulty is not that great. However, it is difficult to determine the heat transfer of PP pipes. You can contact us upstairs for details. Ask: How is the poster's PP pipe laying designed? Why is it not made of metal (category 304)?

It is more economical to mix it with hot water of suitable temperature.

Reply 1# abcdef246 1. Is it just pipe crystallization? What about equipment? What about blind spots such as jars, tower bottoms, etc.? 2. Where is your factory located? What is the lowest temperature in winter? Are there unified heating facilities? If the equipment pipelines are inside the factory and there are many places that require heat tracing, the best way is to uniformly consider heating in the factory. This not only takes into account the pipelines, but also takes care of other equipment or dead ends that may crystallize. In many places in the south, such as the middle and lower reaches of the Yangtze River, the winter temperature is very low. For such media that require heat tracing, if there are not many pipeline equipment, separate heat tracing is OK, but if there are more, from the perspective of production management, heating should be considered in the factory as a whole. The 10°C requirement is not high. It is best to add a thicker insulation layer in locations that are prone to crystallization. For outdoor pipeline equipment, insulation and heat tracing should be considered separately. Both hot air and electric heat tracing can be considered. Even with heat tracing, insulation is still necessary. The host can consult the relevant manufacturers based on production experience. The manufacturers of electric heating tapes can help you calculate. Personal experience: As long as you are not in the north where the winter temperature is minus 20 to 30 degrees and lasts for a long time, in most cases in the south, the anti-crystallization measures adopted by the poster are just to add an insulation layer. People have to wear down jackets to keep out the cold, and you can also wear a layer of cold-proof clothing for the pipes. After all, heat tracing increases energy consumption. .

study* I learned a lot, thank you all.