eueh

31問 • 5ヶ月前

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is a device which catches and holds a quantity of water thus forming a seal which prevents gases resulting from the decomposition of sewage from entering the building through the pipe.

Trap

allow gases in the sewage drainage system to discharge to the outside and sufficient air to enter the system to reduce air turbulence in the system.

Vent Pipes

at a floor level are connected horizontally to the stack by a drain.

Fixture Branches

is the horizontal pipe where the Soil or Waste stack is fed into. It slopes 1/8 to 14 in. Per foot as it feeds the waste into the building sewer 3 ft. Outside the building.

Building Drain

is that portion of the vertical sewage drainage pipe (which maybe a soil or waste pipe) which extends above the highest horizontal drain that is connected to it.

Stack Vent

is used in a multi-story building where a pipe is required to provide the flow of air throughout the drainage system.

Vent Stack

is a stack which carry human waste from water closets or fixtures having similar functions.

Soil Stack

is a stack which carry all waste except human waste.

Waste Stack

require that a potable water supply be adequately furnished to all plumbing fixtures.

Plumbing Codes

is a large water supply pipe that carries potable water from the district or city water system or other water source to the building.

Building Supply or Water Service

to measure and record the amount of water used. It may be placed in a meter box located in the ground near the street or in-side the building.

Water Meter

is a large pipe that serves as the principal artery of the water supply system. It carries water through the building to the furthest riser.

Building Main

is a water supply pipe that extends vertically in the building at least one story and carries water to fixture branches.

Riser

is a water supply pipe that runs from the riser or main to the fixture being connected.

Fixture Branch

runs from the fixture branch to the fixture, the terminal point of use in a plumbing system.

Fixture Connection

is an underground pipe that is typically called a lateral.

Water Service Pipe

a branch supplying water to two or more fixtures.

Zone

fixtures typically located in clusters.

Groups

is a vertical opening through a floor or several floors that is enclosed with walls between floors.

Chase

is a physical phenomenon that occurs in a liquid when it experiences a drastic drop in pressure that causes the liquid to vaporize into small vapor bubbles.

Cavitation

is an unsatisfactory connection or arrangement of piping that can cause nonpotable water to enter the potable water system.

Cross-Connection

is the vertical distance through open air between an opening in a fixture or faucet conveying potable water to the flood level rim of a tank or fixture.

Air Gap

is a type of cross-connection that occurs when contaminated water or some other liquid or substance unintentionally flows backwards into distribution pipes containing potable water.

Backflow

is backflow caused by a negative pressure (vacuum) in a potable water system.

Backpressure or Back Siphoning

is a device or plumbing assembly that when properly installed in a plumbing system prevents backflow.

Backflow Prevention Device or Vacuum Breaker

is a type of backflow prevention device used to keep nonpotable (or contaminated) water from entering the water supply.

Pressure Vacuum Breaker (PVB)

is a backflow prevention device assembly that consists of two check valves assembled in series usually with a ball valve or gate valve installed at each end for isolation and testing.

Double Check Valve

is a large pressure develops when fluid moving through a pipe is suddenly stopped.

Water Hammer

are 15 in to 5 ft long pipes or pipe-like devices.

Air Chambers

are patented devices that absorb hydraulic shock.

Water Hammer Arrestors

is a method of estimating the design load for a group of plumbing fixtures is typically based on a quantity.

Fixture Unit

Enumeration

Sabrina Mikhaela Canindo · 42問 · 1年前

Enumeration