condensation pump
diffusion pump

In modern text books, the diffusion pump is categorized as a momentum transfer pump.

The diffusion pump is widely used in both industrial and research applications.

Most modern diffusion pumps use silicone oil or polyphenyl ethers as the working fluid.

The outside of the diffusion pump is cooled using either air flow or a water line.

One major disadvantage of diffusion pumps is the tendency to backstream oil into the vacuum chamber.

The oil of a diffusion pump cannot be exposed to the atmosphere when hot.

His first major development was the improvement of the diffusion pump, which ultimately led to the invention of the high-vacuum tube.

This is because diffusion pumps have the ability to create both high and ultra-high vacuum.

Since the diffusion pumps have no moving parts, they are durable and reliable.

The two main types of molecular pumps are the diffusion pump and the turbomolecular pump.