Dry screw pumps are increasingly popular as an alternative to oil-sealed rotary vane pumps for many medium and high vacuum applications. Vacuum furnaces end-users and designers must have a good understanding of how claw and screw pumps operate. This includes ...
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How do diffusion pumps work and what are their basic operating principles?
Diffusion pumps boil the oil fluid and then direct the hot oil vapor at very high speeds outwards and downwards through cone-shaped jets. Gas molecules entering the top of the pump are drawn in the vapor stream and redirected to ...
What are the most important tips for working with oil-sealed rotary vane pumps?
Oil-sealed rotary vane vacuum pumps are used in the vacuum heat treating as holding pumps at the exhaust side of the oil diffusion pump while the larger mechanical pumps are roughing (evacuating from atmospheric pressure) the main vacuum chamber. An ...
How does conductance influence gas flow in a vacuum system?
For a vacuum pump system, it is important to take into account the system conductance. and Why Does it Matter? Conductance is the characteristic of a vacuum component or system to readily allow the flow of gas and can be ...
What do you need to consider when choosing between different types of vacuum pumps?
When designing or operating a vacuum system, it is critical to consider several factors. Knowing the intended use will allow you to determine the technology, lubrication, chemical resistance, vacuum level, and necessary flow rate. Vacuum pumps are categorized by their ...