The duoseal ® based system employs a rotary vane pump rotated at low rpm to generate a deep vacuum. by design the pumps are built to be rugged with a large oil reservoir, few moving parts, and low pump rpm. for fast, efficient stripping of large volumes.
For applications including molecular distillations, specialty neon sign fabrication, and high vacuum furnaces, these pumping packages include an oil diffusion pump backed by a 923800-0000 single-phase vacuum pump. This is an inexpensive method of reaching vacuum levels of less than 1 x 10-6 mm Hg.