The Diff-Therm heater is a combination of high-quality, tubular heating elements and grey iron castings (platens and rings) swaged together under 50 tons per square inch pressure. For over twelve years of service to the vacuum industry in the United States and Canada, these heaters have been the industry standard for long life, for uniformly distributed process heat, and for efficient power generation.

Over the course of use heaters can go bad and need replacement.  HyVac now has available heaters for most US and foreign made diffusion pumps.

HyVac has available heaters for 2" through 48" diffusion pumps in over 100 combinations of electrical ratings and casting sizes. We also have heaters in custom casting dimensions and electrical ratings for use on obsolete and foreign-made pumps.

For more information and a list of available sizes click here.