Operating Cost Benefits of Oil-Free Vacuum – Part 1

INTRODUCTION Historically, mini-plants have utilized oil-sealed rotary vane vacuum pumps as a vacuum source because they provide relatively high flow rates and because they can reach relatively deep vacuum levels, such as 10-3 mbar. The same can be said of kilo labs. However, rotary vane pumps also include several critical disadvantages which make their use in…

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Dry, Chemical Resistant Vacuum for Process Development and Kilo Labs

VACUUBRAND’s dry, chemical resistant pumps provide an ideal solution for use in process development, scale-up work, and kilo labs.  With no sealing fluid to replace, our dry pumps provide a low maintenance, low operating cost alternative to oil-sealed rotary vane pumps and water ring pumps.  With 15,000 hour service, these pumps can increase productivity by…

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Vacuum Measurement – Pirani Gauges

Pirani gauges are a group of indirect measuring pressure gauges which measure the thermal conductivity of the gas sample.  Pirani gauges are typically used in the fine vacuum range (1 torr – 10-3torr), as this is the range where they achieve the best accuracy.   A typical accuracy spec for these indirect-reading gauges is ±15%…

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Vacuum Measurement – Capacitive Gauges

In one of our prior posts, we talked about the key differences between direct and indirect vacuum gauges.  One of the most common direct gauge technologies is the capacitive gauge.  This post will review how these gauges are constructed and how they work. At their core, capacitive gauges consist of a thin diaphragm and two…

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Vacuum Measurement Made Easy

Finding a vacuum gauge for monitoring chemical processes can be a challenge.  There are few gauges that simultaneously cover the appropriate vacuum range with sufficient accuracy and have the ability to cope with regular exposure to aggressive chemicals.  VACUUBRAND’s VACUU·VIEW™ and VACUU·VIEW extended™ gauges address these needs. These compact, easy-to-use gauges are designed for long life,…

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