Hydraulic Filters: How to Compare Apples to Oranges

Filter used on a filter cartOne of our readers wrote me this question:

“We are evaluating filters for a contract and I had the suppliers give me the Beta ratios for the elements they propose to supply. The problem is one company has given me Beta ratios for 2 and 11 microns, and the other company, 6 and 20 microns, i.e.:

Company A’s filter is … Read more

What Hydraulic Pump Manufacturers Say About Suction Strainers

Photo credit: Stauff CorporationIf you’ve been following my posts here and in other places for any length of time you’ll be aware that I’m a loud and enthusiastic advocate of NOT installing suction strainers, and in the majority of applications, removing and discarding them when they are installed.

And this is why I’m always interested in any new information on this issue, especially … Read more

What to Do When a Hydraulic Pump Fails

axial piston pump failureAs every hydraulics user who’s been around for a while knows, hydraulic component manufacturers are notorious for the smoke and mirrors they use to deny warranty claims.

Now, this is NOT to say all warranty claims are legitimate. In fact, it’s very safe to say they’re not. But when a hydraulic component fails prematurely, what IS needed is accurate information, … Read more