The protection tubes listed in the documents are designed for use in high temperature corrosive service applications.
These protection tubes can be used in waste incineration, cement kilns, lime kilns, and other harsh process environments where high levels of sulfur, chlorides, ash, and salt deposits are commonly found.
The series 12 protection tube is also an excellent choice for immersion into molten copper and brass alloys.
The series 71 and series 18 protection tubes are typically used as outer protection tubes in high temperature applications such as ceramic kilns, brick kilns, and steel melting furnaces. These tubes are excellent choices in applications where direct flame impingement occurs.