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2. Valve leakage - Wikipedia

   en.wikipedia.org/wiki/Valve_leakage

   Class IV valves have no more than 0.01% leakage under those conditions; this tends to require multiple graphite piston rings or a single Teflon piston ring, and lapped metal seats. Class V valves leak less than 5 × 10 −12 cubic metres, per second, per bar of pressure differential, per millimetre of port diameter, of water when tested at the ...

3. Tap (valve) - Wikipedia

   en.wikipedia.org/wiki/Tap_(valve)

   A single temperature tap is commonly found in a commercial or public restroom where the temperature of the water will be controlled by a separate temperature regulating valve that mixes hot and cold water. The regulating valve may be under the handwashing sink or in a separate mechanical room or service closet.

4. Isolation valve - Wikipedia

   en.wikipedia.org/wiki/Isolation_valve

   These valves are normally left open so that the user can control the flow of water with the spigot above the sink, and does not need to reach under the counter to start or stop the water flow. However, if the spigot needs to be replaced (i.e. maintenance needs to take place on the system), the isolation valves are shut to stop the flow of water ...

5. Plumbing fixture - Wikipedia

   en.wikipedia.org/wiki/Plumbing_fixture

   The most common plumbing fixtures are: Bathtubs; Bidets; Channel drains; Drinking fountains; Showers; Sinks; Tap (connections for water hoses) . Tapware - an industry term for that sub-category of plumbing fixtures consisting of tap valves, also called water taps (British English) or faucets (American English), and their accessories, such as water spouts and shower heads.

6. 4 Nations Face-Off roster winners, losers: Hughes, Tkachuk ...

   www.aol.com/4-nations-face-off-roster-030143003.html

   Here are the winners and losers from the 4 Nations Face-Off roster announcement on Wednesday: ... The best under-$50 clothing items to buy at Amazon right now. See all deals. In Other News.

7. Air gap (plumbing) - Wikipedia

   en.wikipedia.org/wiki/Air_gap_(plumbing)

   In the base cabinet under the sink, the drain hose from the dishwasher feeds the "top" of the air gap, and the "bottom" of the air gap is plumbed into the sink drain below the basket, or into a garbage disposal unit. When installed and maintained properly, the air gap works as described above, and prevents drain water from the sink from backing ...