What is an understanding of the load profile of your application essential for?
What do you have when there’s a cross point between the system’s characteristics and the pump’s performance?
When selecting a pump for variable flow, what's imperative?
What does a P2-curve measure?
What characterises a flat curve?
Why will pumps with a constant duty point soon be a thing of the past?
Test results
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Q: What is an understanding of the load profile of your application essential for?
A: Pump selection
Q: What is an understanding of the load profile of your application essential for?
A: Your power bill
Q: What is an understanding of the load profile of your application essential for?
A: Water composition
Q: What do you have when there’s a cross point between the system’s characteristics and the pump’s performance?
A: The specific duty point
Q: What do you have when there’s a cross point between the system’s characteristics and the pump’s performance?
A: The desired flow rate
Q: What do you have when there’s a cross point between the system’s characteristics and the pump’s performance?
A: The total head
Q: When selecting a pump for variable flow, what's imperative?
A: Looking for pumps which offer the best efficiency at lower more frequent flow
Q: When selecting a pump for variable flow, what's imperative?
A: Selecting a pump with the best efficiency at the peak flow
Q: When selecting a pump for variable flow, what's imperative?
A: Looking for a pump with a constant duty point
Q: What does a P2-curve measure?
A: The relation between the power supplied and the power used
Q: What does a P2-curve measure?
A: The relation between a pump’s power consumption and flow
Q: What does a P2-curve measure?
A: The pump’s head
Q: What characterises a flat curve?
A: When there are small changes in head resulting in large changes in flow
Q: What characterises a flat curve?
A: When there are large changes in head resulting in large changes in flow
Q: What characterises a flat curve?
A: When there are small changes in head resulting in small changes in flow
Q: Why will pumps with a constant duty point soon be a thing of the past?
A: Because duty pumps no longer operate alone
Q: Why will pumps with a constant duty point soon be a thing of the past?
A: Because better and smarter control valves are available
Q: Why will pumps with a constant duty point soon be a thing of the past?
A: Beause of the use of variable speed pumps for applications with variable demand