Service and Support
Installation, commissioning, operation and maintenance guidance for water centrifugal pumps.
Four Stages in the Life of a Pump
Most pump failures are traced back to how the set was installed, how it was started or how it has been run. These four pages cover the practice that keeps a water pump on its duty point.
Installation
Foundation, baseplate, pipework and coupling alignment. Most pump problems that appear later start here.
2Commissioning
Pre start checks, priming and venting, first run and the readings worth writing down on day one.
3Operation Tips
How to keep a water centrifugal pump inside its working range so it lasts.
4Maintenance Tips
Lubrication, seals, clearances, alignment and what to hold on the shelf.
Five Rules That Prevent Most Failures
Never Run Dry
The mechanical seal is lubricated by the pumped liquid. Seconds of dry running can destroy it.
Never Throttle the Suction
Control on the discharge side. Throttling the suction lowers the available NPSH and starts cavitation.
Stay Near the Duty Point
Running far below or far above the design flow loads the shaft, the bearings and the seal.
Align After Piping
Connect and support the pipework first, then align the coupling. Piping strain moves the pump.
Record the Baseline
Pressure, flow, current, bearing temperature and vibration on day one. Every later reading is compared against it.
Watch the Seal
Visible leakage from a mechanical seal, or a dry gland on a packed pump, is the first warning you get.
Service Questions
Do you supply an instruction manual with the pump
The pump is supplied with its documentation. Where the manual and these pages differ, follow the manual.
Can you help with a pump that is not performing
Send the readings — suction and discharge pressure, flow, motor current, bearing temperature — along with the pump series and size.
Do you supply spare parts for older pumps
Send the series, the size and the part and we will confirm what is available.
Need Help With a Pump on Site
Send the series, the size and the readings you have and we will work through it with you.