Glossary of Plumbing terms Flashcards by Coleen Astilla

the physical separation between a waste pipe and an indirect waste receptor or device indirectly connected

air break

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an unobstructed vertical distance through the free atmosphere between the outlet of a faucet and the flood level rim of the fixture or receptacle

air gap

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a valve in which the inlet and outlet openings are at 90 degree angle to one another

angle valve

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the flow of water or waste water in pipes in a reverse direction from that normally intended

backflow

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a pressure within the sanitary drainage system or vent piping system that is greater than atmospheric pressure (>14.7 psi)

back pressure

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the flowing by negative pressure of contaminated or polluted water from a plumbing fixture into a potable water system

back spiphonage

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a device installed in piping to prevent the reverse flow of storm or sewage into the drainage system of their branches

backwater valve

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a valve in which the flow of liquid is controlled by a rotating drilled ball that fits tightly against a resilient (flexible) seat in the valve body

ball valve

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any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch

battery of ifxtures

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the end portion of a pipe which for a short distance is enlarged to receive the end of another pipe which may be of the same diameter for the purpose of making a joint

bell or hhub

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a term that is synonymous with faucet, cock, plug, tap or spigot

bibb

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a kind of fixture which is used for bathing the external genitals and posterior parts of the bidy

bidet

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any part of the piping system other the main, riser or stack

branch

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a vertical length of soil or waste stack at least eight feet in height (storey height) within the horizontal branches from one storey or floor of the building or structure are connected to the stack

branch interval

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that part of the lowest horizontal piping of a plumbing system which receives the discharge from soil, waste and other drainage pipes inside a building and conveys it to the building sewer/ house sewer

building drain/ house drain

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that part of the drainage system that extends from the end of the building drain and conveys its discharge to the public sewer, private sewer, individual sewage disposal system or other appropriate point of disposal

building/ house sewer

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the first section of water supply piping in a building after the water meter

building supply pipe

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plugging an opening with oakum, lead or other material that are pounded into the annular space. also, the material pounded into the annular space

caulking/calking/cogging

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a non-watertight lined excavation in the ground which receives the discharge of sanitary drainage system or part thereof, designed to the organic matter and solids discharging there from, but permitting the liquid to seep through the sides and bottom

cesspool

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a fitting with a removable plate or plug that is placed in plumbing drainage pipe lines to allow access to the pipes for the purpose of cleaning and maintenance

cleanout

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part of the roofing and/or area gutter system that takes water from a roof above-surface area to a storm drain or the disposal area or system

conductor or leader

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any physical connection or arrangement of pipes between two otherwise separate building water supply pipes or system through which or by means of which water supply may flow from one system to the other, the direction of flow depends on the pressure difference between the two systems

cross connection

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the extended portion of a pipe that is closed one end to which no connections are made on the extended portion, thus permitting stagnation of waste water or air therein

deadend

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the length along the center line of pipes and fittings

developed length

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the nominal commercial designation, normally the inside diameter of the pipe unless otherwise specially stated in a particular plumbing code

diameter

the vertical portion of a rainwater conductor

downspout

any pipe which carries waste water or waterborne wastes in a building drainage system

drain

a common measure of the probable discharge into the drainage system by various types of plumbing fixtures on the basis of one of this being equal to a discharge rate of 7.5 gals. per minute or one cubic foot of water per minute

drainage fixture unit (dfu)

the abbreviation for drainage, waste, and vent

DWV

a valve on a water pipe means of which water can be drawn from or held within the pipe. the valve is placed on the end of the ipe

faucet

a receptacle attached to a plumbing system other than a trap in which water or wastes may be collected or obtained for ultimate into the plumbing system

fixture

the level in a fixture at which water begins to overflow the top or rim of the fixture

flood level

the volume of water used by a plumbing fixture in a given amount of time. usually expressed in gallons per minute (gpm)

flow rate

a device located at the bottom of a flush tank for flushing water closets and similar fixtures

flush valve

a device which discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure

flushometer valve

a bathroom containing a water closet, a lavatory and a bathtub

full bath

a valve in which the flow of water is cut off by means of a circular disk, fitting against machine-smoothed surfaces at right angles to the direction of flow. the disk is raised or lowered by means of a threaded stem connected to the handle of the valve. the opening in the valve is usually as large as the full bore of the pipe

gate alve

a valve in which the flow of water is cut off by means of circular disk that fits against the valve seat. the plane movement of the disk is parallel to the normal direction of flow ofd water, which is turned through a tortuous passage to direct the flow normal to the face of the dik

globe valve

a kind of return bend of small-sized faucet one enfd of which is about one foot long and the other end is about three inches. it is commonly used as a faucet for pantry sink and drinking fountain. also the lead connection between the service pipe and the water main. also a p-trap

gooseneck

a bathroom containing a water closet and a lavatory

half bath

a faucet to which a hose may be attached

hose bibb

a waste pipe the does not connect directly with the drainage system by conveys wastes by discharging into a plumbing fixture or receptacle, which is directly connected to the drainage system, e. g. refrigerator waste pipe, drinking fountain waste pipe, etc.

indirect waste pipe

a condition contrary to sanitary principles or injurious to health

insanitary

a fixture designed for washing of the hands and face

lavatory/ wash basin

the principal pipe to which the branches may be connecter

main

a vertical vent pipe installed primarily for the purpose of providing circulation of air to or from any part of the building drainage system

main vent/vent stack

an opening conduit or conductor, the wall thickness is sufficient to receive a standard pipe

pipe

the art and science of installing in buildings the pipes, fixtures and other apparatus for bringing in water supply and removing water and waterborne wastes

plumbing

a receptacle attached to a plumbing system other than a trap in which water or wastes may be collected or retained for ultimate discharge into the plumbing system

plumbing fixture/sanitary ware

all water supply drainage and venting systems and all fixtures and their traps complete with their connections

plumbing system

water that meets he standards of a government agency and is used for culinary, domestic, and drinking purposes

potable water

an outhouse or structure used for the deposition of excrement

privy

a p-shaped trap commonly used on most plumbing fixtures except for a fixture having integral trap

p-trap/ 1/2 s-trap/ gooseneck

a common sewer directly controlled by public authority to which all abutters have equal rights of connections

public sewer

a water supply pipe that extends vertically one full storey or more to convey water to fixture branches or group of fixtures

riser

the installation of parts of the plumbing system which can be completed prior to installation of fixtures of finishing. this includes drainage, water supply and vent piping and necessary fixture supports

roughing--in

a loosely lined excavation in the ground, which receives the discharge of a septic tank and designed to permit the effluent from the septic tank to seep through the bottom and sides of the pit

seepage pit/ cesspool/ dry well

a watertight receptacle which the discharge of sanitary plumbing system or part therof, designes and constructed to retain solids, digest organic matter through a period of detention and to allow the liquids to discharge into the soil outside of the tank through a system of open jointed subsurface pipings or a seepage pit

septic tank

any waste water containing animal or vegetable matter in suspension or solution and may include liquids containing chemicals in solution

sewage

a pipe or conduit for carrying sewage and wastewater

sewer

a suction created by the flow of liquids in pipes; a pressure less than the atmospheric pressure

siphonage

a pipe which carries the discharge toilets or similar fixtures; with or without the discharge of other fixtures to a sewer or approved drain

soil pipe

any pipe which conveys the discharge of water closet, urinal or fixtures having similar function with or without the discharges from other fixtures to the building drain or building sewer

soil stack

the end o fa pipe which fits into a bell; also word used synonymously with faucet

spigot

a general term used for any vertical line of soil waste or vent piping

stack

a tank or pit below the normal grade of gravity receivng liquid wastes or sewage from which the wastes or wemust e mechanically pumped to a higher receiving point

sump

a fitting or device and constructed to provide, when properly vented, a liquid seal which prevents backflow and passage of foul air and gases with our materially affecting the flow of sewage or waste water through it

trap

a pipe or opening used for ensuring the circulation of air in a plumbing system and for relieving the negative pressure exerted on trap seal

vent pipe

the vertical vent pipe installed primarily for providing circulation of air to and from any part of the soil, waste of the drainage system

vent stack/main vent

a pipe which conveys potable water from the building supply pipe to the plumbing fixtures and other outlets

water distributing pipe

a pipe which conveys only wastewater or liquid waste free of fecal matter

waste pipe

the water supply pipe provided by the water utility company where local individual connection are done

wate main

the first after the water main before the water meter

water service pipe

in a building consists of the water service pipe water supple line, water distributing pipes and the essential branch pipes walves and all other appurtenances for the suply of potable water

water supply system

a pipe connecting upward from a soil or waste stack below the floor and below the horizontal connection to an adjacent vent stack at a point above the floor and higher than the highest spill level of fixtures for preventing pressure changes in the stack

yoke vent

A special type of fitting or fitting utilized in the drainage system. Are similar to cast iron fittings, except that instead of having a bell or spigot, drainage fittings are recessed and tapped to eliminate ridges on the inside of the installed pipe

Drainage fittings

Is a pipe that makes an angle less than 45 degrees with the horizontal

Horizontal pipe

Is a pipe which makes an angle of 45 degrees or less with the vertical

Vertical pipe

A pipe fitting with a removable plug which provides access for inspection or cleaning of the pipe run

Access eye/ cleaning eye