Plumbing Terms Flashcards

Pipe used for drains, waste, and venting.

Pressure-absorbing devices that eliminate water hammering. Air chambers should be installed as close as possible to valves or faucets and at the end of long runs of pipe.

Unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet supplying water to a tank, a plumbing fixture, or another device and the flood level rim of the receptacle.

Unobstructed vertical distance through the free atmosphere between the outlet of a water pipe and the flood level rim of the receptacle into which it is discharged.

Bubble of air that restricts the flow of water in a pipe.

Flow of water or other liquids, mixtures, or substances into the distribution pipes of potable water supply from any source or sources other than the intended source.

Device that prevents the reverse flow of water, due to atmospheric or higher pressure, by means of a positive check valve.

Flowing back to used, contaminated, or polluted water from a plumbing fixture or vessel into a potable water supply due to a negative pressure in the pipe.

Water faucet connected to a hose. Also referred to as a sill cock or hose bib.

1) Process of drawing air from a water pipe; 2) Seeping of resin or gum from lumber