VACUUM SCIENCE BLOG

Entries related to: vacuum-pumps

How has COVID-19 affected the US vacuum technology industry?

For business and organisations in the vacuum technology space, COVID-19 has changed the way in which they operate indefinitely – with many experiencing the effects in different ways. It has, without a doubt, been a harsh and challenging year, but signs of recovery are on the horizon as government-imposed lockdowns ease and many of these businesses and organisations resume (in some way) operations. .

 

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Diaphragm Vacuum Pumps - how they work and where to use them

.Functional Principle 

Diaphragm pumps - also known as membrane pumps - are positive displacements pumps used in the rough vacuum range from 0,5 to 1000 mbar. A membrane (rubber, Viton ® or Teflon® ) is moving up and down in the pump body compressing and exhausting gas coming from the inlet. Inlet and exhaust check valves are actuated by the pressure difference.

 

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Dry vacuum pumps in the food industry

In December 19, 2019 we mentioned that dry screw pumps in food industry application are more often replacing wet pumps. We found a useful link about dry vacuum pumps in food packaging. Please follow https://blog.leybold.com/disrupting-food-packaging. In this blog, Jim Hupp, an experienced technician working in the Midwest USA explains the advantage of dry pumps compared to other pump types in this industry.

 

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Vacuum applications in times of COVID-19 & other pandemics

Given the situation with COVID-19, many questions are being asked about how vacuum technology (specifically mass spectrometers) can help with health diagnostics and research.

With this in mind, in this short blog we’ll explore how mass spectrometers can be used in the medical field to tackle pandemics like COVID-19.

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Everything you need to know about oil diffusion pumps

Oil diffusion pumps have been the workhorse in high-vacuum pumping for many decades and remain the standard for industrial applications like brazing/soldering, E-Beam welding and large-area coating. Their investment costs are relatively low, and they can provide pumping speeds of up to 50.000 l/s. In this blog, we will explain the working principles of oil diffusion pumps, including how to apply and control them in vacuum systems, the typical dos and don'ts, and provide several application examples.

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Vacuum Technology for Space Simulation Chambers

 

According to the Union of Concerned Scientists (UCSUSA) about 2,200 active satellites orbit our planet and an additional 100 are launched every year. Most of these satellites are used for telecommunication and, with GPS projects like the European GALILEO and the SPACE-X Starlink (which intends to bring internet connection to every spot on earth) on the horizon, their number will continue to grow.

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How To Match Primary & Secondary Pumps

Secondary pumps require a primary pump to initially ‘prime’ them for operation and/or to support their continuous operation. There are several factors which need to be considered for the correct combination or ‘matching’ of primary and secondary pumps to ensure safe and optimized performance.

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66th American Vacuum Symposium Report

 

The Annual Symposium of the American Vacuum Society is the world’s main yearly vacuum conference held in Columbus, Ohio from the 20th to 25th October 2019.

There were 27 parallel sessions in a wide range of topics and over 2500 registrants.

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How cryopumps work: a detailed guide on their use

 

Cryopumps offer several advantages compared to other high-vacuum pumps. For instance, their pumping speed for water vapour is up to 4x higher than any other vacuum pump with the same inlet diameter. Furthermore, unlike gas transfer pumps, i.e. turbomolecular pumps or oil diffusion pumps, cryopumps condense all the gasses within them. The goal of this blog is to explain to you how they operate and where their capabilities are beneficial to the vacuum process. 

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10th Vacuum Symposium 2019 Report

Over the years, vacuum pumps have evolved to dry versions (no oil in the swept volume), robust, process specific, low power consumption and reduced footprint. With this shift in the industry, it was great to hear a range of discussions around this during the 10th Vacuum Symposium UK.

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