Advanced Thermocouple Assemblies

The NC-12 protection tube is a dense, sintered ceramic especially designed for use in many molten non-ferrous metals and corrosive chemicals. It is very strong, thermally shock resistant and dimensionally stable. Additionally NC-12 is vacuum-tight and has high electrical resistance. Mechanical strength is retained at extremely high temperatures (over 1,000 degrees Celsius in air). These features together with very low wear resistance, makes NC-12 an ideal thermocouple protection tube for applications such as molten aluminum, lead, tin, and zinc. Preheating is not necessary because NC-12 has a very low thermal expansion coefficient.

Our NC-12 Protection tubes are also recommended for use in oxidizing environments to 2,200 degrees Fahrenheit. Most acids, such as hydrochloric, nitric, sulphuric, and phosphoric, do not attack NC-12. This material is also resistant to hydrogen gas. It is not recommended for use with caustic solutions and hydrofluoric acid.

• NOTES:
• Standard units come with thermocouple type K installed.
• For duplex units or other calibrations contact factory.

• Standard support tube is five inches long of stainless steel.
• This suppOort tUube is of universal design. It comes in either one inch of 1-1/4 inch NPT pipe threadss (depending on diameter of protection tube).
• Complete with wrench flats for easy installation and it can accept flanges.