What is meant by "priming a pump" or "to prime a pump" . THANKS
2007-09-14 12:51:06 · 6 answers · asked by 株式会THE CITADEL 株式会 4 in Science & Mathematics ➔ Engineering
Generally, this refers to getting a pump that is to move a liquid of some kind into the condition where it can. The body of the pump needs to have enough fluid in it so that it can create a suction to move the desired fluid.
2007-09-14 12:57:22 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Priming a pump is to fill the pump casing with enough liquid so that it may operate. With most pumps where the pump casing is not already filled enough, this must be done with auxiliary piping to either put liquid in or to pull air out so the liquid can rise (be sucked-up) into the suction pipe and then fill the casing.
There are some pumps having a self- priming design feature where the air is ejected by the pump impeller itself. This also involves a specially designed casing. These are usually among the smaller pumps often found at construction sites where water must be pumped -up out of an excavation or a pond or a flooded basement, etc.
There is a figure of speech that relates to this which is called "pump priming " or "priming the pump" which means to provide financial assistance to help an enterprise get started.
2007-09-14 14:41:36 · answer #2 · answered by Bomba 7 · 0⤊ 0⤋
Pumps are not efficient when the body (pumping area part) of the pump is full of air. This is because air, being a gas, can be compressed.
To get the pump into an efficient state you need to get fluid into the pump body.
You sometimes see a valve or removable plug located on a high part of the pump body that will allow you to add fluid or bleed out any air in the pump body. This is referred to as "priming a pump"
2007-09-14 13:15:06 · answer #3 · answered by Basra 3 · 2⤊ 0⤋
Some pumps don't work well enough when air-filled to create the negative pressure necessary to draw up the liquid to be pumped. Centrifugal pumps are an example - air has too low a density to produce much pressure due to centrifugal force.
Such pumps have to be filled with liquid by some other means, e.g. by using a small manual pump. That's called "priming". Once filled, the pump starts to work properly.
2007-09-17 11:47:55 · answer #4 · answered by James P 5 · 0⤊ 0⤋
to prime a pump, ie suckshon pump. you must first fill the sucshon hose, with water from the furthist point of suckshon.
hence priming the pump
2007-09-15 11:23:14 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Different pump applications require different priming methods.
The other answers are quite correct dependant on the application and pump type.
If you have a specific problem e mail me and I will try to help.
2007-09-15 07:58:38 · answer #6 · answered by firebobby 7 · 1⤊ 0⤋