Download owner’s manuals for our most popular pump series. You can download specs for all vacuum pumps and pressure pumps in our Product finder section.
HP Series (Older Models) Manual
For models with the screw-type safety switch (see page 7).
HP Series (Newer Models) Manual
For models with the slide-type safety switch (see page 9).
Frictional Losses for Air as a Function of Flow and Pipe Size