These conflat 3.375 (3-3/8) inch nozzle heaters are designed to be tightened around the outer surface of the conflat flange. The thermal energy from the bakeout process helps desorb layers of water vapor in vacuum chambers allowing the molecular water vapor to be pumped away leading to a much quicker pump down time for ultra-high vacuum (UHV) applications. These conflat flange bakeout nozzle heaters are a low-cost solution to more expensive CF heating jackets. These conflat thin band nozzle heaters have a 3.375-inch inner diameter by 1.0-inch width, operate on 110 to 120 VAC input power, consume 300 Watts of power and have 18-inch flying FFG Leads. They are tightened on to the conflat flange with an integrated socket head cap screw hardware component. Conflat ultra-high vacuum metal-to-metal seal with copper gasket and stainless-steel conflat flanges allows for baking of temperatures up to 450 °C. (maximum bakeout temperature can be limited by the choice of gasket material).

These nozzle heaters work directly with our single zone PID heater control systems (P1011283) and (P107361), which are designed to accurately measure and control the temperature of our conflat flange ThinBand nozzle heaters, as well as Ideal Vacuum Cube heater plates, and other vacuum heater and chiller units in real time. One or more heaters, up to 2400W @ 120VAC or 4800W @ 240VAC can be controlled by our heater control systems. Temperature measurements are obtained by our conflat bakeout surface mount K-Type thermocouple (P107362).

These items work together to make a complete CF heating and temperature control solution. Caution - it is important to understand the risk of being burned by heated vacuum flanges. The bakeout temperature of conflat flanges and fittings can reach 450 degrees Celsius! The vacuum system operator needs to be trained correctly on how to safely operate around these very hot surfaces.

CF Flange heaters in sizes from CF1.33 to CF4.625 are available.