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Air lock

Video footage: GUANGZHOU, CHINA - OCTOBER 24, 2004: Lab technician carries trays of samples to air lock.
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Definition of the noun air lock

What does air lock mean as a name of something?


  1. a chamber that provides access to space where air is under pressure
    • lexical domain: Artifacts - nouns denoting man-made objects
    • alternative spelling: airlock
    • more generic word: chamber = a natural or artificial enclosed space


Air lock: An air lock is a restriction of, or complete stoppage of liquid flow caused by gas trapped in a high point of a liquid-filled pipe system. The gas, being less dense than the liquid, rises to any high points. When pressure is applied, instead of the liquid flowing as it would if the system was full of liquid, the system behaves like a series of manometers.

Printed dictionaries and other books with definitions for Air lock

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Google previewEncyclopedia of Chemical Processing and Design (1995)

Volume 52 - Solid-Liquid Separation: Clarifiers and Thickeners Selection to Specific Gravity and Specific Heats by John J. McKetta Jr

air lock (Fig. 2), or feeder-air lock (a combination of both). The following definitions will be used in this article. As a feeder, a rotary valve operates under a solids head; the volume passing through is a function of rotor speed (rpm). As an air ...

Google previewPlumbing Illustrated Dictionary (2007)

by John Thompson

air lock The trapping of air in a pipe or fitting, resulting in a reduction or a ...

Google previewDictionary of Architectural and Building Technology (2004)

by Henry J. Cowan, Peter R. Smith, W. K. Chow

A typical modern air lock consists of a cylinder of steel plate with airtight doors located at both ends, together with valves to admit or to exhaust compressed air. One of the doors must always be closed; before the other is opened, the pressure ...

Google previewNelson's Perpetual Loose-leaf Encyclopaedia (1920)

An International Work of Reference by John Huston Finley, William Peterson

An air lock forms a means of access for men and materials to and from the air chamber," which is that part of the tunnel in which the atmospheric pressure is above that of the normal air. It consists of a chamber, opened, and the outer door is ...

Google previewDictionary of Industrial Terms (2013)

by Michael D. Holloway, Chikezie Nwaoha

Facility Engineering Air Lock Civil Engineering: An airtight chamber permitting passage to or from a space, as in a caisson, in which the air is kept under pressure. Civil Engineering Air lock Civil Engineering: An airtight chamber permitting ...

Google previewConcise Encyclopedia of Plastics (2012)

by D.V. Rosato, Marlene G. Rosato

air lock See molded air lock.

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Air lock

Wine Thief Air Lock Sarah

Photo credit: JCHaywire

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Quotes about Air lock

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