A collection of observations and information from 50 years of engineering experience
Articles
Is there an ideal impeller vane number?
Centrifugal pump design and manufacturing has been around for over 200 years. If there were an ideal impeller vane number, it seems likely someone would have discovered it by now....
Is there an ideal impeller vane number?
Centrifugal pump design and manufacturing has been around for over 200 years. If there were an ideal impeller vane number, it seems likely someone would have discovered it by now....
What is the connection between Suction Specific...
The connection between suction specific speed Sω (NSS) and minimum flow (Qmin) is that, in general, a higher value of Sω (NSS) is associated with a higher value of Qmin....
What is the connection between Suction Specific...
The connection between suction specific speed Sω (NSS) and minimum flow (Qmin) is that, in general, a higher value of Sω (NSS) is associated with a higher value of Qmin....
Critical Pump Selection Webinar - Video
After the success of my webinar, I am making a recording of it available for everyone who was not able to attend, and those who wanted more time to go...
Critical Pump Selection Webinar - Video
After the success of my webinar, I am making a recording of it available for everyone who was not able to attend, and those who wanted more time to go...
Centrifugal Pumps Second Edition – A Book Review
The first pump text book I purchased when I began my career in pump engineering 36 years ago was Centrifugal and Axial Flow Pumps by A.J. Stepanoff. At the time,...
Centrifugal Pumps Second Edition – A Book Review
The first pump text book I purchased when I began my career in pump engineering 36 years ago was Centrifugal and Axial Flow Pumps by A.J. Stepanoff. At the time,...
Impellers - why underfile?
Underfiling is the removal of material from the underside (also back side, “non-working” side, or suction side) of an impeller vane at the inlet or the exit. In this article,...
Impellers - why underfile?
Underfiling is the removal of material from the underside (also back side, “non-working” side, or suction side) of an impeller vane at the inlet or the exit. In this article,...
Should pump users care about axial thrust?
Normally the user shouldn’t have to care about axial thrust. Pump failure from an axial thrust-related problem is relatively uncommon. But very few, if any, pumps are entirely immune to...
Should pump users care about axial thrust?
Normally the user shouldn’t have to care about axial thrust. Pump failure from an axial thrust-related problem is relatively uncommon. But very few, if any, pumps are entirely immune to...