lift pump
Definition
Noun: A lift pump is a type of pump designed to raise a liquid from a lower level to a higher one, typically by creating a partial vacuum that allows atmospheric pressure to push the liquid upward. It operates on the principle of suction rather than applying direct force to pressurize the liquid.
Usage
The term lift pump is used specifically in mechanical and engineering contexts to describe a pump whose primary function is elevation. - It is often contrasted with force pumps, which are designed to generate high pressure. - It is commonly applied to simple pumps, such as hand-operated or old-fashioned well pumps.
Examples
Advanced Usage
- Technical Specification: In engineering specifications, a lift pump may be defined by its maximum "suction lift," which is the vertical distance it can raise a liquid, limited by atmospheric pressure.
- Historical Context: The lift pump was a crucial early technology for accessing groundwater before the advent of electric submersible pumps.
Variants and Related Words
- Suction Pump: A general term often used synonymously with lift pump, emphasizing the method of operation.
- Force Pump: A related but distinct type of pump designed to generate significant discharge pressure, often used in conjunction with a lift pump in a system.
- Lift: As a verb, meaning to raise something. The pump is named for this action.
Synonyms
- Suction pump
- Raising pump
Antonyms
- Force pump
- Pressure pump
Related Phrases and Compounds
- Lift pump capacity: Refers to the volume of liquid a lift pump can move within a given time.
- Lift and force pump: A compound pump design that combines both lifting and pressurizing stages. (Note: This is a compound term, not the target word itself).
Noun
-
pump used to lift rather than force a liquid up
