Plumbing Dictionary


Plumbing termonalogy.

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S

STORM DRAIN

See "Drainage system, storm."

STRUCTURE

That which is built or constructed or a portion thereof.

SUBSOIL DRAIN

A drain that collects subsurface water or seepage water and conveys such water to a place of disposal.

SUMP

A tank or pit that receives sewage or liquid waste, located below the normal grade of the gravity system and that must be emptied by mechanical means.

SUMP PUMP

An automatic water pump powered by an electric motor for the removal of drainage, except raw sewage, from a sump, pit or low point.

SUMP VENT

A vent from pneumatic sewage ejectors, or similar equipment, that terminates separately to the open air.

SUPPLY AIR SYSTEM

An assembly of connected ducts, plenums, fittings, registers and grilles through which air, heated or cooled, is conducted from the supply unit to the space or spaces to be heated or cooled. (See also RETURN AIR SYSTEM.)

SUPPORTS

Devices for supporting and securing pipe, fixtures and equipment.

SWIMMING POOL

Any structure, basin, chamber or tank containing an artificial body of water for swimming, diving or recreational bathing having a depth of 2 feet (610 mm) or more at any point.

T

TEMPERED WATER

Water ranging in temperature from 85 F (29 C) to 120 F (49 C).

THERMOSTAT

An automatic device actuated by temperature changes, designed to control the gas supply to a burner, or burners, in order to maintain temperatures between predetermined limits.

TOP OUT

The installation of the plumbing systems before the wall covering goes on.

TRANSITION FITTINGS, PLASTIC TO STEEL

An adapter for joining plastic pipe to steel pipe. The purpose of this fitting is to provide a permanent, pressure tight connection between two materials which cannot be directly joined one to another.

TRAP

A fitting or device that provides a liquid seal to prevent the emission of sewer gases without materially affecting the flow of sewage or waste water through the fitting or device.

TRAP SEAL

The vertical distance between the weir and the top of the dip of the trap.

Tubing

Semi-rigid conduit of copper, aluminum, plastic or steel.

TYPE A DWELLING UNIT

A dwelling unit that is designed and constructed for accessibility in accordance with the provisions of CABO/ANSI AII7 .1.

TYPE B DWELLING UNIT

A dwelling unit that is designed and constructed for accessibility in accordance with the provisions of this chapter or CABO/ANSI A117.1.

U

UNCONFINED SPACE

A space whose volume is not less than 50 cu ft per 1,000 Btu/hour (4.83 m3/kW) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

UNIT HEATER

A self-contained gas-burning appliance of the fan type, designed for the delivery of warm air directly into the space in which the appliance is located.

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