Heating bands are the ideal solution for the heating of tubes an cylinders. UGL is a mica nozzle heater, made with a plastic-tight stainless steel casing and available with thermocouple on request. UGL is in many dimension available from stock . For all other dimensions (dia < 70 mm) you could use micaflex. The Ceramic heating band type Keraplast is suitable specially for applications with high watt density and therefore for higher temperatures.
