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Difference between revisions of "Pumps"
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* -------------------------------------------------></noinclude> | * -------------------------------------------------></noinclude> | ||
[[Image:Jet_pump.jpg|thumb||right|A jet pump]] | [[Image:Jet_pump.jpg|thumb||right|A jet pump]] | ||
[[Image:Lysholm_screw_rotors.jpg|thumb|upright|Screw pump]] | |||
[[File:220px-Rotary_vane_pump.svg.png|thumb|Rotary vane pump]] | |||
A '''pump''' displaces a volume by physical or mechanical action. Pumps fall into three major groups: direct lift, displacement, and gravity pumps. | A '''pump''' displaces a volume by physical or mechanical action. Pumps fall into three major groups: direct lift, displacement, and gravity pumps. | ||
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==== Positive Displacement Types ==== | ==== Positive Displacement Types ==== | ||
A positive displacement pump can be further classified according to the mechanism used to move the powder: | A positive displacement pump can be further classified according to the mechanism used to move the powder: | ||
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===== Rotary Positive Displacement Pumps ===== | ===== Rotary Positive Displacement Pumps ===== | ||
Positive displacement rotary pumps are pumps that move powder using the principles of rotation. The vacuum created by the rotation of the pump captures and draws in the powders. | Positive displacement rotary pumps are pumps that move powder using the principles of rotation. The vacuum created by the rotation of the pump captures and draws in the powders. | ||