How does a vertical multistage pump work?
A vertical multistage pump is a centrifugal pump containing two or more impellers. The impellers may be mounted on the same shaft or on different shafts, but for the majority if pumps they are on the same shaft. The fluid flows into the inlet of the pump casing where it flows into the eye of the impeller.
How can I tell how old my pump is?
Look on the back side, the side facing toward the house, and you should find a nameplate. The nameplate lists the manufacturer’s specifications on it. At the top of the nameplate, you should see the manufacture’s date like a month and year. Sometimes it’s abbreviated as MFR DATE.
What is the difference between single stage and multistage pump?
The primary difference between single-stage and multistage centrifugal pumps lies in the number of stages (also referred to as impellers) they have. As the name implies, single-stage pumps have only one impeller, whereas multistage pumps have at least two.
How do you date a Grundfos pump?
Grundfos box products contain a date code or production code on the name plate of our pumps and Motors. Date code (ex: 1708 = 2017, 8th week) + 2 years (1908) + 26 additional weeks (1934) The warranty period would expire on the 34th week of 2019.
How long do Grundfos well pumps last?
The pump of your central heating system can last a long time if it is properly installed and maintained. Typically, they keep going for at least 10 years.
How do you read a pump size?
Pump Size Number The size of the pump, 1-1/2 x 3 – 6 is shown in the upper part of the pump curve illustration. Note that the size number 1-1/2 x 3 – 6 indicates that the pump has a 1-1/2 inch discharge port, a 3 inch suction port, and a maximum nominal impeller size of 6 inches.
Do water pumps need servicing?
Superior Maintenance Is a Must Just like any other system in your house, regular water pump maintenance is the key to preventing inconvenient and costly problems. Your pump should receive an annual maintenance checkup to ensure all parts are working properly.
How do you read a pump flow chart?
The Pump curve shows the Flowrate range on the horizontal scale. As standard the Flowrate is from zero flow to 20% past the Best Efficiency Flow. The first point on the curve at zero flow is referred to as “Shut Off” and the last point at maximum flow is “Run Out”.