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Glossary of Plumbing Terms
Welcome to Keidel's Plumbing Glossary. Every industry and trade has its own standards and terminologies. This glossary is our attempt to help the general public understand some of the terms unique to our industry.
Our database contains over 1000 unique terms, compiled from a variety of public and private sources. To use the glossary efficiently you can click on the letter of the desired term that you would like to find. For example: click on "C" to find out about "Closet Augers" or "P" for "Petcock." Definitions listed here are provided without warranty.
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Let us know what we should add to the Glossary.
J
| JTU |
see: Jackson Turbidity Unit
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| J Bend |
The trap section, with a 180-degree bend, or a multi-piece P-trap. Also called a return bend.
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| J Hook |
A pipe hanger in the shape of a J
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| Jacket |
Usually refers to the heating/ cooling jacket surrounding the stuffing box on some pumps; The outer casing (shell) of a water heater.
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| Jackson Turbidity Unit (JTU) |
A quantitative unit of turbidity originally based on the comparison of a liquid (such as water) with a suspension of a specify type of silica, using the turbidity measure in a Jackson Candle Turbidimeter.
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| Jet |
An orifice or other feature of a toilet that is designed to direct water into the trapway quickly to start the siphon action.
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| Jetport |
Hydrojet dip tube, which creates turbulence in the tank.
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| Johnni-bolts |
Closet bolts, used to mount toilet bowls to the closet flange
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| Joint |
One length of pipe
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| Joint Runner |
Collar like device that keeps molten lead in place while sealing a joint in cast iron pipe.
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| Junction Box |
Utility area where incoming current is connected in an electrical appliance.
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