How to calculate pumping speed of a rotary pump?

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Ajinkya Trimukhe

http://people.rit.edu/vwlsps/LabTech/Pumps.pdf

reference for you

Prashant Thankey

The pumping speeds of rotary pumps are always specified by the manufacturer, and generally the user does not need to measure the same. However, measurement is possible. This paper explains some methods: http://ac.els-cdn.com/0042207X96000097/1-s2.0-0042207X96000097-main.pdf?_tid=0b0e0928-2af9-11e5-b869-00000aacb35d&acdnat=1436968662_a006fb9bad5dc742c08a7336bfd66f8b