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How Rotary Vane Vacuum Pumps Work

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A Rotary Vane Vacuum Pump is a positive-displacement pump that consists of both housing and vanes. Those vanes are strategically mounted onto a rotor, which then rotates inside of a circular casing.  The center of the circular casings are offset which causes eccentricity. This is the distance between the centers of two cylindrical objects one … Read more

Repair Your Vacuum Pump Now During the Holidays

This time of year is a great time to repair your vacuum pump or helium leak detector.  In general, it’s slower and quieter around the office, which makes it the perfect time to get your vacuum equipment in prime condition for the coming year. Some other reasons to repair your pump now are: Production shuts … Read more

What Astronauts Eat for Christmas Dinner (And How they Cook It)

Astronauts on the International Space Station have been celebrating Christmas and the winter holidays each year since 2000. Eating in space has its own special set of challenges due to the low gravity environment. Preparing Meals in Space The majority of the food sent up to the space station has been dehydrated and vacuum-packed for … Read more

From Don’s Desk—August Edition

Vacuum Pump Expert Don McGregor Answers Your Most Pressing Questions Question #1: Pump Oil Problems I sent my Edwards Pump to your shop to check out. It is a 2 CFM which is backing a 20CF vacuum oven and the oil is really thick and dark. It looks like maple syrup, thick and ‘goopy’. After you look … Read more

Deciphering Vacuum Gauge Readings

Other than assembly instructions for Ikea furniture, there is little in life more confusing than high vacuum measurement. Some people speak of ‘inches of vacuum’, others use words like ‘Torr’ or ‘Microns’. Here is how it works: Mercury in a “perfect” manometer is pushed up by atmospheric air to 760mm. This is Atmospheric Pressure (1 … Read more

The Fascinating History of the Vacuum Pump

Picture of Otto Von Guericke

The word vacuum is derived from the Latin vacuus,  meaning “an empty space” or  “void’. While scientists worked on vacuum experiments before him, Otto von Guericke is generally credited with the actual invention of the vacuum pump in 1650.  The predecessor to the vacuum pump was the suction pump which dates back to the time of the Romans. Centuries … Read more

How to Improve Your Research with Tuned Up Vacuum-Driven Applications

Medicinal Chemists, Organic Chemists, Biochemists, Biologists, Molecular Biologists and other scientists rely upon Vacuum-Driven Devices to concentrate, dry, or filter their materials. If your Vacuum System is not performing optimally, it can slow preparation of research-critical samples by as much as 50%-100%! This can have a significant impact on time-to-market, or on your research paper productivity. Doesn’t it … Read more

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