Glossary of Plumbing terms Flashcards
the physical separation between a waste pipe and an indirect waste receptor or device indirectly connected
air break
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
a valve in which the inlet and outlet openings are at 90 degree angle to one another
angle valve
the flow of water or waste water in pipes in a reverse direction from that normally intended
backflow
a pressure within the sanitary drainage system or vent piping system that is greater than atmospheric pressure (>14.7 psi)
back pressure
the flowing by negative pressure of contaminated or polluted water from a plumbing fixture into a potable water system
back spiphonage
a device installed in piping to prevent the reverse flow of storm or sewage into the drainage system of their branches
backwater valve
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
any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch
battery of ifxtures
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
a term that is synonymous with faucet, cock, plug, tap or spigot
bibb
a kind of fixture which is used for bathing the external genitals and posterior parts of the bidy
bidet
any part of the piping system other the main, riser or stack
branch
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
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
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
the first section of water supply piping in a building after the water meter
building supply pipe
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
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
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
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
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
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
the length along the center line of pipes and fittings
developed length
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