Constant factor, which is unique to each air diffuser design and model, used to figure the system airflow in calculations of HVAC. The information is available with the manufacturer of the diffuser.
Kafer fitting
Also called an insertable joint, this cast iron drainage pipe fitting, with its threaded on hub, is used to attached to cast iron lines already in existence.
Kame
A hill or short, steep rise of layered sand or gravel, deposited in contact with glacial ice.
Kaolin
A fine white clay, which is used to make porcelain, as a file in paper, textile, rubber, etc. and in the medical treatment of diarrhea.
Kaplan turbine
A type of turbine that that has two blades whose pitch is adjustable. The turbine may have gates to control the angle of the fluid flow into the blades.
Keel
The lower, pouchlike lip of flowers of certain members of the bean family. The keel is formed by the fusion of two petals. The boat-shaped structure formed by the two lower petals of many members of the Leguminosae.
Keene's cement
Hard white finishing cement with a fast setting time and a high polish capability. Consisting of anhydrous gypsum plaster and an accelerant, alum, Keene's cement is normally applied over Portland cement, often using several coats.
Kerf
(1) Series of parallel grooves made on the back of something to permit bending or on the back of a masonry block to allow breaking cleanly. (2) A cut or groove made by a saw. (3) Width of a cut.
Kernel
The edible part of nut.
Kerosene
A type of heating fuel derived by refining crude oil that has a boiling range at atmospheric pressure from 400 degrees to 550 degrees F.
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