Pumps AXIAL PUMP AXIAL PUMP Transfers fluid in

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Pumps

Pumps

AXIAL PUMP

AXIAL PUMP

AXIAL PUMP • Transfers fluid in a straight line • A common example of

AXIAL PUMP • Transfers fluid in a straight line • A common example of an Axial pump is a boat motor • The driveshaft extends through the elbow and into the process flow. • They can be mounted vertically or horizontally

PUMP SPECIFICATIONS Displacement • The amount of fluid that can be discharged from the

PUMP SPECIFICATIONS Displacement • The amount of fluid that can be discharged from the pump in one revolution • Expressed in cubic inches per revolution or cubic centimeters per revolution • Two types of displacement Theoretical Actual

PUMP SPECIFICATIONS (cont’d. ) Volumetric efficiency: Terms: AD VE 100 TD • VE –

PUMP SPECIFICATIONS (cont’d. ) Volumetric efficiency: Terms: AD VE 100 TD • VE – volumetric efficiency • AD – actual displacement • TD – theoretical displacement

PUMP SPECIFICATIONS (cont’d. ) Delivery: Terms: • D – displacement • MS – motor

PUMP SPECIFICATIONS (cont’d. ) Delivery: Terms: • D – displacement • MS – motor speed

Pump Specifications (cont’d. ) Power is the equivalent of how much work is produced

Pump Specifications (cont’d. ) Power is the equivalent of how much work is produced in a certain amount of time Terms: • W: distance a weight moves • T: time

PUMP SPECIFICATIONS (cont’d. ) • Horsepower is a unit of power in the English

PUMP SPECIFICATIONS (cont’d. ) • Horsepower is a unit of power in the English system of units • One horsepower (hp) is equal to 33, 000 foot-pounds (ft. - lb. ) per minute, or 550 ft. -lb. per second

Pump Troubleshooting • Bearing failure is most common with the gear-type pumps • Seals

Pump Troubleshooting • Bearing failure is most common with the gear-type pumps • Seals will sometimes begin to leak • Fluid reservoir must be checked on a regular basis • Otherwise the pump may begin to suck in air

PUMP TROUBLESHOOTING (cont’d. ) • Entrained air • Air bubbles can form and be

PUMP TROUBLESHOOTING (cont’d. ) • Entrained air • Air bubbles can form and be carried along with the fluid stream • Can cause cavitation Cavitation: vacuum void within the fluid

Pump Troubleshooting (cont’d. ) • Vane pumps Vanes, cam ring and housing tend to

Pump Troubleshooting (cont’d. ) • Vane pumps Vanes, cam ring and housing tend to wear out over time • Most pumps have an inlet strainer Can become clogged

Pumps in Series

Pumps in Series

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This workforce solution was funded by a grant awarded by the U. S. Department

This workforce solution was funded by a grant awarded by the U. S. Department of Labor’s Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U. S. Department of Labor. The Department of Labor makes not guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or tis completeness, timeliness, usefulness, adequacy, continued availability, or ownership. This work by Mineral Area College is licensed under the Creative Commons Attribution 4. 0 International License.