How To Read a Pump Manual

Posted: 9/9/2014

A pump manual is essential reading for any industrial pump system operator. However, these manuals are thorough and complicated, so let us show you how to interpret the information listed and use it to optimize your industrial pump's performance. We will be using our 8 Series Centrifugal Magnetic Drive Pumps as an example.

Step 1: Pump Model List

On the top right it lists the pump models being covered. (TE-8C-MD, TE-8K-MD, TE-8S-MD)
Pump Specifications

 Step 2: In the middle is a pump curve.

pump curve manual

This pump curve has different individual curves on it depending on the model and for 60hz and 50hz. For more advanced curves, please see the individual pump page. These curves are with a full size impeller running full speed.

Step 3: Limited Warranty

Under "Limited Warranty" there is a link to register your pump online for warranty.

Limited Warranty

Step 4: Specifications

Below is a box for "Specifications."


For the row "Max Flow", it is important to remember the disclaimer on the line "60HZ-50HZ". So, 120GPM is for 60HZ and 400LPM is for 50HZ, it is not, as some people think the gallons converted into liters.
For row "Inlet-Outlet", MPT stands for male pipe thread. FYI, FPT stands for female pipe thread.

Step 5: Max Internal Pressure

For row "Max Internal Pressure", you see the Polypropylene model can only take 50PSI, Kynar can take 75PSI, and Stainless Steel can take 200PSI.


Max Internal Pressure


It is strongly encouraged to never hook up the Polypropylene or Kynar (or any plastic pump) to city water pressure.

Step 6: Packed Weight & Overall Pump Size

Max Internal Pressure
For rows "Packed Weight" and "Overall Pump Size", these are with the latest motors. It is possible you may have brought an older pump with a different motor if the weight/dimensions are off.

Step 7: Rating/Duty

For "Rating/Duty", please contact March if you will like the UL or CSA file number on the motor.


Step 8: Watts-Amps

For "Watts-Amps", these are given when the pump is under full load.


This means when the pump is running at full capacity. So, for the Series 8, these watts and amps will be accurate when the pump is pumping 120GPM. If the pump is doing less flow, it will draw less amps and watts. Trimming the impeller, slowing down the speed of the motor, and the specific gravity of the liquid can all affect the amps and watts.

Step 9: Material in Contact with Solution

For "Materials in Contact With Solution", this is also known as the "Wet End".


Material in Contact with Solution


On the back side is a list of all the individual parts. Some special parts may not be listed, so feel free to contact March for all of your needs!

Other articles you may find interesting:
  • How to Read the Motor Wiring Diagram
  • How to Read a Chemical Resistance Chart
  • How to Read a Pump Performance Curve
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