Practical guides to vacuum equipment, product selection and the details that make an installation work.
Edwards EDO65 or EDO100: which industrial scroll pump fits the job?
Compare Edwards EDO65 and EDO100 industrial scroll pumps by working pressure, flow, electrical supply and installation requirements.
Helium leak detection: local and integral testing explained
Compare local helium spray, sniffer and integral leak tests, including response time, background and the conditions needed for useful results.
Vacuum leaks and outgassing: how do you tell the difference?
Understand what pressure-rise tests reveal, how leaks differ from outgassing and when helium testing can help locate an external leak path.
Why vacuum pipework can limit pumping performance
See how pipe diameter, length, valves and filters affect effective pumping speed, with a worked high-vacuum conductance example.
What is outgassing, and why does it slow evacuation?
Learn how surfaces and materials release gas in a vacuum, why evacuation slows and when cleaning, preparation or pump changes may help.
Oil-sealed or dry vacuum pumps: what should you consider?
Compare oil-sealed and dry vacuum pumps by process compatibility, cleanliness, working pressure, maintenance and installation costs.
Choosing a vacuum pump: what your supplier needs to know
Prepare a useful vacuum pump enquiry: process gases, operating pressure, chamber volume, cycle time, cleanliness and installation details.
Buying an Edwards nXDS pump: six details to settle before ordering
A practical Edwards nXDS buying checklist covering pressure, chamber volume, gas ballast, process variants, controls and accessories.
Leybold SCROLLVAC plus: why the electrical version belongs in the specification
Specify a Leybold SCROLLVAC plus pump correctly: check supply frequency, phase, performance figures, gas-handling variant and installation scope.
Specifying a Leybold NOVADRY for a packaging machine
What to include in a Leybold NOVADRY enquiry: packaging cycle, chamber volume, target pressure, moisture, wash-down and installation details.