Plumbers School

A valve end of a water pipe by means of which water is drawn from or held within the pipe.

Installation of all the fixtures and the prepration for the use of the plumbing system by the owner.

A valve of the plug and barrel type designed for use with gas, and equipped with a lever handle for manual operation and a dial to indicate the percentage of opening.

See "Plumbing fixture."

A drain serving two or more fixtures that discharges to another drain or to a stack.

The drain from the trap of a fixture to a junction with any other drain pipe.

A fitting that is attached to or accessible from a fixture and controls the volume and/or directional flow of water to, or conveys water from, that fixture.

The water supply pipe connecting a fixture to a branch water supply pipe or directly to a main water supply pipe

The flame produced by premixing some of the air required for combustion with the gas before it reaches the burner ports or point of ignition.

A device which will automatically shut off the gas supply to a main burner or group of burners when the means of ignition of such burners becomes inoperative, and when flame failure occurs on the burner or group of burners.

The flame produced by burning gas without any premixing of the air with the gas.

The edge of the receptacle from which water overflows.

Flood-hazard zone (A Zone). Areas that have been determined to be prone to flooding but not subject to high-velocity waters or wave action. High-hazard zone (AV Zone). Areas of tidal influence that have been determined to be subject to wave heights in excess of 3 feet (914 mm) or subject to high-velocity wave run-up or wave-induced erosion.

A completely self-contained unit furnace suspended from the floor of the space being heated, taking air for combustion from outside this space, and with means for observing flames and lighting the appliance from such space.

A floor furnace equipped with a fan which provides the primary means for circulating air.

A floor furnace depending primarily upon circulation of air by gravity. This classification shall also include floor furnaces equipped with booster type fans which do not materially restrict free circulation of air by gravity flow when such fans are not in operation.

The pressure in the water supply pipe near the faucet or water outlet while the faucet or water outlet is wide open and flowing.

That portion of an appliance designed for the attachment of the draft hood or vent connector.

A device installed in and made a part of the vent which will provide a positive induced draft.

Products of combustion plus excess air in appliance flues or heat exchangers (before the draft hood or draft regulator).