Martin's Koolance RP-402X2 Review (Working Thread )

[Martinm210]

Here are the details of the PQ curve tests. I included the RPM data this time around. Even though there does appear to be some variance between samples, I thought it may be helpful in understanding how the pumps speed scales negatively as flow rate increases. I believe this is new to the PMP-400 to help reduce pump heat/increase durability at high flow conditions.

This should also give you the details you might need regarding power consumption figures:

Single Pump


Both Pumps in series


What I find interesting is how similar the RPM per Flow rate is for each test and the fairly linear reduction in RPM as flow increases. Anyhow, there are the details.