Chapter 2: Definitions Flashcards
ABS
Acrylonitrile-Butadiene-Styrene
When applied to a fixture, connection, appliance or equipment, shall mean having access thereto, but which may require prior removal of an access panel, door or similar
obstruction.
ACCESSIBLE
Shall mean direct access without necessity of removing any panel, door or similar obstruction
READILY ACCESSIBLE
A physical separation, which may be a low inlet into the indirect waste receptor from the fixture, appliance or device indirectly connected.
AIRBREAK
The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe, plumbing fixture, appliance or appurtenance conveying waste to the flood level rim of the receptor.
AIR GAP, DRAINAGE
An unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood-level rim of any tank, vat or fixture.
AIR GAP, WATER DISTRIBUTION
An organization primarily established for purposes of testing to approve standards and approved by the Administrative Authority
APPROVED TESTING AGENCY
The flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source other than from its intended source.
BACKFLOW
Condition or any arrangement whereby reverse flow can occur.
BACKFLOW CONNECTION
Occurs due to an increased reverse pressure above the supply pressure. This may be due to pumps, boilers, gravity or other sources of pressure.
BACKPRESSURE BACKFLOW
Device or means to prevent flow of liquid from returning to the source of supply. Also called “Vacuum Breaker”
BACKFLOW PREVENTER
The flowing back of used, contaminated or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such pipe.
BACK-SIPHONAGE
A device installed in the drainage system to prevent reverse flow.
BACKWATER VALVE
The part of the vent line, which connects directly with an individual trap underneath or behind the fixture and extends to the branch or main vent pipe at any point higher than the fixture or fixture traps it serves. This is sometimes called an “Individual Vent”.
BACKVENT PIPE
A valve opened & closed by the fall & rise, respectively of an attached ball floating on the surface of the liquid.
BALL COCK
A type of pipe connection in which a ball-shaped end is held in a cuplike shell and allows movements in every direction.
BALL JOINT
Any of two or more similar adjacent fixture which discharge into a common horizontal soil or waste branch.
BATTERY OF FIXTURES
That portion of a pipe which, for a short distance, is sufficiently enlarged to receive the end of another pipe of the same diameter for the purpose of making a caulked or push-on joint.
BELL OR HUB
a tool for straightening or bending lead pipe.
BENDING PIN (or IRON)
Also called a “stiz” bath.
BIDET
a pipe flange that is not drilled for bolt holes
BLANK FLANGE
a flange that closes the end of the pipe. There is no opening for the
passage of liquid & gas
BLIND FLANGE
a controlled outlet of a pipeline to discharge liquid or detritus.
BLOW-OFF
a valve outlet of a boiler that permits discharge of accumulated sediment.
BOILER BLOW-OFF
any part of piping system other than the main, riser or stack.
BRANCH
a length of soil or waste stack corresponding in the general to a storey height, but in no case less than 2.43m within which the horizontal branches from one floor or storey of a building are connected to the stack.
BRANCH INTERVAL
