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2. Heat trap - Wikipedia

   en.wikipedia.org/wiki/Heat_trap

   Heat traps are valves or loops of pipe on the cold water inlet and hot water outlet of water heaters. The heat traps allow cold water to flow into the water heater tank, but prevent unwanted natural convection and heated water to flow out of the tank. [1] [2] Newer water heaters have built-in heat traps.

3. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   In traditional plumbing in the UK, the space-heating boiler is set up to heat a separate hot water cylinder or water heater for potable hot water. Such water heaters are often fitted with an auxiliary electrical immersion heater for use if the boiler is out of action for a time. Heat from the space-heating boiler is transferred to the water ...

4. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   The vapour-sensing tube leak detection method involves the installation of a tube along the entire length of the pipeline. This tube – in cable form – is highly permeable to the substances to be detected in the particular application. If a leak occurs, the substances to be measured come into contact with the tube in the form of vapour, gas ...

5. Automatic bleeding valve - Wikipedia

   en.wikipedia.org/wiki/Automatic_bleeding_valve

   The top has a small outlet, usually hidden beneath a plastic dust cap. Internally there is a large hollow body, normally filled with water, and containing a float valve. The valve must always be installed vertically, usually at the top of a short vertical pipe. If the valve body is filled with water, the float moves upwards and closes the valve.

6. Entertainment News & Latest Celebrity Headlines - AOL.com

   www.aol.com/entertainment

   Get breaking entertainment news and the latest celebrity stories from AOL. All the latest buzz in the world of movies and TV can be found here.

7. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   A trap primer automatically injects water into a trap, maintaining a water seal to keep sewer gas out of buildings. It must be installed in an easily accessible place for adjustment, replacement, and repair. A trap primer, a specialized valve, is usually connected to a clean-water supply in addition to a DWV system. [20]