1.2 Definition of terms Flashcards
the unobstructed vertical distance through the free atmosphere between the lowest opening for any pipe or faucet supplying water to a tank or plumbing fixture and the floor level rim of the receptacle
Air Gap
is a drain, installed to collect surface or rain water from an open area.
Area Drain
the flow of water or other liquids into the distributing pipes of a potable supply of water from any source or sources other than its intended source.
Back-flow
Give two types of backflow
Back-siphonage and cross-connection
is any arrangement whereby back-flow can occur.
back-flow connection
is any group of two (2) or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch.
Battery of fixtures
any part of a plumbing system other than the main.
branch
is a vent connecting one or more individual vents with a vent stack or stack-vent.
branch-vent
is the sewer extending from the main sewer to the curb line.
Building Connection
shall mean that part of the lowest horizontal piping of a drainage system which receives, or is designated to receive, the discharge of all soil, waste or other drainage pipes inside the walls of the building and to a distance of five (5) feet outside of the foundations or any footings of a building and convey the same to the building sewer.
Building drain
shall mean the extension from the building drain to
the public sewer or other place of disposal.
Building(house) sewer
is a building drain used for conveying rain water,
ground water, subsurface water, cooling water, or other similar discharge to a building storm sewer.
Building storm drain
is the pipe extending from the building storm drain to
the public sewer or other point of disposal.
Building storm sewer
is that portion of a drainage system which cannot drain by gravity into the building sewer.
Building subdrain
is a running trap installed in the building drain to prevent circulation of air between the drainage system of the building and the building sewer.
building trap
is a branch that serves two (2) or more traps and extends from in front of the last fixture connection of a horizontal branch to the vent stack.
Circuit vent
waste that is free of organic matter.
clear water waste
is a fixture which is an integral part combination of one sink and one or two (2) laundry trays in one fixture, or of a two-or three- compartment sink or laundry tray in one fixture.
combination fixture
shall mean a sewer receiving both surface runoff and sewage.
Combined sewer
is a vent that is a straight line continuation of the drain to
which it is connected, and is designated according to the angle of the drain with the horizontal at the point at which the vent connects as vertical continuous-waste-and-vent, forty-five (45) degree continuous-waste-and- vent.
Common vent
is any physical connection or arrangement of pipes between two (2) otherwise separate water-supply systems, one of which contains potable water and the other water of unknown or questionable
safety, whereby water may flow from one system to the other, the system of flow depending on the pressure differential between the two (2) systems.
cross-connection
is a branch leading from a soil, waste, vent, or building sewer
which is terminated at a developed distance of two feet or more by means of a cap, plug, or other closed fitting.
dead end
is two (2) offsets installed in succession or in series in the same
line.
double offset
is any pipe which carries waste water or waterborne
wastes in a building drainage system.
drain pipe
is all the piping within public or private premises which conveys sewage, rain water, or other liquid wastes to a point of disposal, and shall include the building drain and building sewer system, or
a private or public sewage-treatment or disposal plant.
drainage system
is any vent that does not carry water or waterborne wastes.
dry vent
is a vent connected at the junction of two (2) fixture drains and
serving as a vent for both fixtures.
duel vent
is a term used to describe soil or waste system where all piping is of threaded pipe, tubing, or other rigid construction, using recess drainage fittings to correspond to the types of piping.
Durham system
is the minimum crossing area at the point of water-supply discharge, measured or expressed either in terms of the diameter of a circle, or if the opening is not circular, the diameter of a circle of equivalent cross- sectional area.
Effective opening
is a plumbing system, or any part thereof which has been installed prior to the effective date of this code.
Existing work
is the water supply pipe and the
water distribution pipe.
Fixture branch
is the drain from the trap of a fixture to the junction of that drain with any other drain pipe.
Fixture drain
is a water-supply pipe connecting the fixture with the
fixture branch.
fixture-supply pipe
is a design factor so chosen that the load-producing values of the different plumbing fixtures can be expressed approximately as multiples of that
factor.
Fixture unit
in reference to a plumbing fixture is the level at which water begins to overflow the top or rim of the fixture.
flood level
is the top edge of the receptacle from which water overflows.
flood-level rim
is a device which discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure.
flush valve
is its slope in reference to a horizontal plane. For
drainage piping it is usually expressed as the fall in inches or fraction of an inch per foot of length of pipe.
Grade of a line pipe
is a receptacle designed to intercept and retain grease or fatty substance contained in kitchen or other wastes.
Grease interceptor
is a branch drain pipe extending laterally from a soil or waste stack or building drain, with or without vertical sections or branches, which receives the discharge from one or more fixture drains and conducts to the soil or waste stack or to the building drain.
Horizontal pipe is any pipe or fitting
is a branch drain pipe extending laterally from a soil or waste stack or building drain, with or without vertical sections or branches, which receives the discharge from one or more fixture drains and conducts to the soil or waste stack or to the building drain.
Horizonta branch
is a waste pipe which does not connect directly with the drainage system, but discharges into it through a properly trapped fixture or receptacle.
indirect waste pipe
is a pipe installed to vent a fixture trap and connected to the general vent system at a point above the fixture.
individual vent
shall mean the waterborne solids, liquids and/or gaseous wastes from industrial, manufacturing, commercial or food-processing operation or process, or from the development of any natural resource, or
any mixture of these with water or domestic sewage.
Industrial waste
means contrary to sanitary principles, injurious to health.
insanitary
is the receptacle designed to separate or intercept and prevent the passage of oil, volatile flammable liquid, grease, sand, or other material
into the drainage system to which such receptacle is directly or indirectly connected.
Interceptor
the chief plumbing inspector or his duly authorized assistant plumbing inspectors. All powers conferred by this chapter of this code upon the chief plumbing inspector are likewise conferred upon his assistant plumbing inspectors and such assistants may exercise all such powers.
Inspector
is the water conductor from the roof to the building
storm drain or other piping serving as a storm drain.
Leader (downspout)
is a relief or individual vent which is run at approximately the same elevation as the waste line it serves until it can rise gradually and connect to a vent, vent stack or stack above the flood level rim of the fixture it serves.
line
is the discharge from any fixture in connection with the plumbing system which does not receive fecal matter.
liquid waste
is a pipe connecting upward from a soil or waste stack to a vent
stack for the purpose of preventing pressure changes in the stacks.
yoke vent
a waste pipe that serves also as a vent.
wet vent
is the pipe from the water main or other source of water supply to the building or service required.
water service pipe
as used in connection with the water-distributing system is the
water discharge opening to either a fixture or atmospheric pressure (except
into an open tank which is part of the water-supply system); or to a boiler or
heating system; or to any water-operated device or equipment requiring
water to operate.
water outet
is a water-supply pipe for public or community use.
water main
is a permanent gas-fired or electric appliance used for heating
water, and for the purposes of this code is designated as a plumbing fixture.
water heater
in a building is one which conveys water from the water service pipe to the plumbing fixtures or other water outlets.
water distributing pipe
is any pipe which receives the discharge of any fixture except water
closets or similar fixtures, and conveys it to the building drain, soil, or waste
stack.
waste pipe
is any pipe or fitting which is installed in a vertical position or which
makes an angle of not more than forty-five (45) degrees with the vertical.
vertical pipe
is a pipe or pipes installed to provide a flow of air to or from a
drainage system or to provide a circulation of air within such system to
protect trap seals from siphonage and back pressure.
vent system
is a vertical vent pipe installed
primarily for the purpose of providing circulation of air to or from any part of
the drainage system.
vent stack
is material that has been installed and used, and has been
removed and passed to another ownership or possession.
used material
is the vertical distance between the crown weir and the dip of the
trap.
trap seal
is a fitting or device so designed and constructed as to provide a liquid
seal which will prevent the back passage of air without materially affecting
the flow of sewage or wastewater through it.
trap
are devices for supporting and securing pipe and fixtures to walls, ceilings, floors or structural members.
Supports, hangers, and anchors
is a tank or pit which receives the discharge from drains or other
wastes, and from which the discharge is pumped or ejected or otherwise
mechanically propelled into a drainage system.
sump
is a drain installed for collecting subsurface or seeping water
and conveying it to a place of disposal.
subsoil drain
shall mean a sewer which carries storm and
surface waters and drainage, but excludes sewage and polluted industrial
wastes.
storm drain
is the extension of a soil or waste stack above the highest horizontal
branch connected to the stack.
stack-vent
is a general term for the vertical main of a system of soil, waste, or vent
piping.
stack
is any pipe which conveys the discharge of water closets or fixtures
having similar functions with or without the discharge from other fixtures.
soil pipe
