Architectural and Engineering Glossary
A machine which draws in air at atmospheric pressure,then compresses it to pressures higher than atmospheric and delivers it at a rate sufficient to operate pneumatic tools or equipment.
On drawings,abbr.for “air condition.”
A device for providing air conditioning.
Same as air maintenance device.
Same as air curtain.
An empty space left around the external foundation wall of a building to prevent the earth from lying against it and causing dampness.
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Same as pneumatic drill.
The process of drying slowly under ambient conditions of temperature and humidity,as in the natural seasoning of lumber or the hardening of paint.
A duct,usually fabricated of metal,fiberglass,or concrete;used to transfer air from one location to another.
In a piping system,a device used to remove air from water,steam,or a refrigerant.
Concrete made with air entraining cement or an air entraining agent.Same as cellular concrete.
Descriptive of the capability of a material or process to develop a system of minute bubbles of air in cement paste,concrete,or mortar.
Hydraulic cement which contains an air-entraining agent in an amount such as to cause air to be entrained in the mortar,within specified limits.
The occlusion of air in the form of tiny bubbles (generally smaller than 1 mm) during the mixing of concrete or mortar;used toimprove its workability.
Any device used to remove solid and/or gaseous pollutants from air.
The use of an air filter to provide clean air.
1.The unobstructed vertical distance between the lowest opening of a faucet (or the like) which supplies a plumbing fixture (such as tank or wash bowl) and the level at which the fixture will overflow.2.In a drainage system,the unobstructed vertical distance between the out- let of a waste pipe and the flood-level rim of the receptacle into which it discharges.3.A gap in an electric or magnetic circuit;usually acts as a high-resistance path in the circuit.
1.A fixed metal grille on the exterior of a building through which air is brought into,or discharged from,the building for purposes of ventilation.2.An air diffuser.
A type of air grating.
A portable tool,driven percussively by air pressure,into which is set a chisel,hammer,or the like.
See warm-air heating system.
In the foundation of a house,an opening that provides ventilation for a crawl space.
Same as pneumatic structure.
In an air-conditioning system,a device through which air is supplied to the system.
Same as outside-air intake.
A rod-shaped device for directing a high velocity stream of compressed air;used to clean away debris from a surface.
A duct,hose,or pipe that supplies compressed air to a pneumatic tool or piece of equipment.
A valve required to introduce air into a tank which stores water under pressure.
A device for measuring the air content of concrete and mortar.
During the removal of asbestos in buildings,the measurement of asbestos fiber content in the air.
An air-operated device used to open or close a damper,1 or valve.
In an air-conditioning system,a device at the end of a duct through which air is exhausted.
A test for the measurement of the fineness of powdered materials,such as portland cement.
A seldom used synonym for vent pipe.
An air-filled volume within a section of piping (or an apparatus) which is normally filled with liquid.
A relief vent.
A pump used to exhaust or to compress air,or force it through another apparatus.Also see air compressor.
A device which eliminates trapped air from a piping system.
See indoor air quality.
On an air compressor,the air storage tank.
Same as register.
A device for regulating airflow,as in the burner of a furnace.
In a heating system,any device used to add heat to the air circulating in the system.
The legal property right for use of the space above a specified elevated plane;usually includes the right to ground support but excludes other rights to ground use,e.g,the right to construct a building over a railroad track.
See air washer.
An apparatus for separating ground-up materials pneumatically into various sizes.
A ventilating shaft;a roof- less enclosed area within a building or between buildings;may have openings such as windows.
A device for regulating the quantity of air being mixed with gas for combustion.