Here's an example of a pump serial plate from OnHandSupply. Serial plates may differ by each manufacturer, but the fields are generally similar. There may be an additional serial plate on the motor, which is specific to the motor used to power the pump. The serial plate for the pump may be on the power end (bearing housing) or the casing (volute).

It's important to familiarize yourself with the fields on a serial plate, because your serial plate is the easiest way to gain key information about your pump. We'll cover the definition of each field on the serial plate.