37 Terms
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Plumbing
Referring to the skilled trade of working with pipes and plumbing fixtures that provide water or drain waste.
Industry: Construction
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Plumbing
Injection
Construction; Plumbing
The drawing of primary air into a gas burner by means of a flow of fuel gas.
Influent
Construction; Plumbing
The stream entering a unit, stream or process, such as the hard water entering an ion exchange water softener.
Induction motor
Construction; Plumbing
The most common type used in industry. Has a slippage of 2 to 5 percent compared to synchronous motors.
Hydrostatic test
Construction; Plumbing
Test using non-compressible liquid under pressure at a level equal to or greater than the maximum pressure that will be utilised when in use, such as in steam boilers.
Hydrostatic pressure
Construction; Plumbing
Pressure exerted by or existing within a liquid at rest with respect to adjacent bodies.
Hydro jetting (service)
Construction; Plumbing
The process of clearing blocked pipes using high pressure water as a boring and flushing mechanism.
Hub & spigot piping
Construction; Plumbing
Gravity rated DWV or pressure pipe that has a bell-shaped section at one end and a straight section at the other. As lengths are assembled, the straight end of one fits into the bell of the next.
