air locks

Sealed transfer compartments

An air lock is a chamber with two airtight doors, allowing passage between environments at different pressures—typically between a pressurized spacecraft or submarine and the vacuum or water outside.

One door seals before the other opens, preventing pressure loss.

Air lock also refers to a bubble trapped in a pipe that blocks liquid flow: The pump won't work because of an air lock in the line.

Related

seal · airtight seal · enclosures · pressurization · valve · lunar module · docking bay · vacuum · hull breach · egress · spacecraft · space station · astronauts · helmet · oxygen · life support · outer space · gasket

Categories
Opposites
barrier type

air lockshull breaches

Openings in vessel exterior

breaches · gaps · holes · windows

pressure/atmosphere management

air locksopen space

Unobstructed outdoor area

depressurization · decompression

barrier function

air locksopen air

Unenclosed outdoor space

Family

airlock

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G