Plumbing Dictionary


Plumbing termonalogy.

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A

ACCEPTED ENGINEERING PRACTICE

That which conforms to accepted principles, tests or standards of nationally recognized technical or scientific authorities.

ACCESS (to

That which enables a fixture, appliance or equipment to be reached by ready access or by a means that first requires the removal or movement of a panel, door or similar obstruction.  see "Ready access"

ACCESS COVER

A removable plate, usually secured by bolts or screws, to permit access to a pipe or pipe fitting for the purposes of inspection, repair or cleaning.

ACCESSIBLE

Having access to, but which first may require the removal of a panel, door or similar covering of the item described. See READILY Accessible.

ADAPTER FITTING

An approved connecting device that suitably and properly joins or adjusts pipes and fittings which do not otherwise fit together.

ADMINISTRATIVE AUTHORITY

The individual, official, board, department, or agency established and authorized by a state, county, city or political subdivision created by law to administer and enforce the provision of the code as adopted or amended.

AIR ADMITTANCE VALVE

One-way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. The device shall close by gravity and seal the vent terminal at zero differential pressure (no flow conditions) and under positive internal pressures. The purpose of an air admittance valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building.

AIR BREAK (DRAINAGE SYSTEM)

A piping arrangement in which a drain from a fixture, appliance or device discharges indirectly into another fixture, receptacle or interceptor at a point below the flood level rim.

AIR CONDITIONING

The treatment of air so as to control simultaneously its temperature, humidity, cleanness, and distribution to meet the requirements of a conditioned space.

AIR GAP (DRAINAGE SYSTEM)

The unobstructed vertical distance through the free atmosphere between the outlet of the waste pipe and the flood level rim of the receptacle into which the waste pipe is discharging.

AIR GAP (WATER DISTRIBUTION SYSTEM)

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

AIR MIXER

That portion of an injection (Bunsen) type burner into which the primary air is introduced.

AIR SHUTTER

An adjustable device for varying the size of the primary air inlet or inlets.

ALTERNATIVE ENGINEERED DESIGN

A plumbing system that performs in accordance with the intent of Chapters P3 through P13 and provides an equivalent level of performance for the protection of public health, safety and welfare. The system design is not specifically regulated by Chapters P3 through P13.

ANCHORS

AND/OR

In a choice of two code provisions, signifies that use of both provisions will satisfy the code requirement and use of either provision is acceptable also.

ANTISIPHON

A term applied to valves or mechanical devices that eliminate siphonage.

APPLIANCE EQUIPMENT

Any device which utilizes gas as a fuel or raw material to produce light, heat, power, refrigeration, air conditioning or to generate a chemical atmosphere.

APPLIANCE FLUE

The flue passages within the appliance.

APPLIANCE, AUTOMATICALLY CONTROLLED

Appliances equipped with an automatic burner ignition and safety shut-off device and other automatic devices which accomplish complete turn-on and shut-off of the gas to the main burner or burners, and graduate the gas supply to the burner or burners, but do not affect complete shut-off of the gas.

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