1. Teflon heating tube. Teflon heating pipe is also called Teflon heating pipe, polytetrafluoroethylene heating pipe, commonly known as Teflon pipe. Teflon heating tube is generally suitable for corrosive liquid such as strong acid and alkali, and the general process temperature is ≤ 105 ℃. The advantages of Teflon heating tube are no adhesion, no scaling, even surface heat dissipation, but the price is also high.
2. Stainless steel heating pipe. There are many different grades of heating pipe stainless steel, such as stainless steel 304, stainless steel 321, stainless steel 316L, etc. The normal heating pipe is mainly made of stainless steel 304, which is also the material most customers choose in their work. The better material is stainless steel 321. Stainless steel 316L is generally suitable for the liquid with pH > 7-14, i.e. it is suitable for the alkaline liquid, but it is generally not recommended to use in the strong acid and alkali.
3. Titanium heating tube. Titanium heating pipe is generally suitable for chromium plating, copper acid, nickel plating, passivation, filling, oxidation tank, chromic acid anodizing, phosphating acid tin plating and other processes, so the price of titanium heating pipe is relatively high.