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About Randal Ferman

I have more than 40 years’ experience in the pump industry. During my 32 years with Flowserve, a global pump manufacturer, I was active in Research & Development, marketing and sales support, manufacturing operations, field retrofits, troubleshooting and repair services, and in-house engineering training. Since 2009 I have been an independent provider of objective engineering consulting services on new and existing pumping equipment and systems. My home office is in Los Angeles, California and I provide services domestically and abroad.Connect with me on LinkedIn here.

29 Mar 2020

The Differences Between Centrifugal Pumps and Compressors

Centrifugal pumps and compressors are both rotating equipment devices. Each is a machine that  imparts kinetic energy to the fluid to create

06 Nov 2019

STEM and the Art of Motorcycle Maintenance

In an ancient time, before STEM (Science, Technology, Engineering and Mathematics) was an educational program, how did people get into those fields?

20 Jun 2019

Notes on NPSH Testing

In pump literature, much has been written and continues to be written about NPSH (Net Positive Suction Head) and cavitation. As career pump engineer,

19 Jul 2018

Pump lead times – what to expect

          Introduction We live in a world of convenience and instant gratification. When the Wi-Fi goes down,

28 Feb 2017

NPSH Margin — how much?

A word on the terminology: Net Positive Suction Head (NPSH) is the sum of the total static plus kinetic pressure minus the liquid vapor pressure, at

26 Mar 2015

The User’s Role in Pump Reliability

This introductory 20 minute webinar, with Randal Ferman of Ekwestrel Corp, discusses what operations and maintenance can do to improve pump

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