By Marcelle Dibrell
When it comes to everyday circulation needs, less is best should be the motto.
This is because of the Pump Affinity Law, one of several affinity laws that expresses the relationship between head, flow rate, shaft speed, and power and are all involved in a pump’s performance.
There are three relationships given by the law that are relevant to the discussion of pumps. The first is that the shaft speed is proportional to the flow rate. The second is that the pressure or head is proportional to the square of the shaft speed. The third is that the power is proportional to the cube of the shaft speed.Read More