This kind of heaters are built in: carbon steel, stainless steel (AISI 304,AISI 321, AISI 316L), incoloy 800, copper, titanium, PTFE coating .
The available diameters of the tubolar heaters: 7-8,5-10-12-14-16.
Brass and stainless steel are materials used for threaded plugs: diameters from ¼” to 2”½ Gas Carbon steel and stainless steel (AISI 304, AISI 316) used for flanges plugs (UNI-ASA-DIN-etc). Special - designed solution upon request.
The electric protections can be : from IP50 (total protection from every objects and dust) to IP 68( total submersion).