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  2. Automatic bleeding valve - Wikipedia

    en.wikipedia.org/wiki/Automatic_bleeding_valve

    A working system should not generate further trapped gas. Air may be drawn in if there is a small leak, or dissolved air in make-up water may come out of solution, but this generally indicates a system leak if new water is needing to be added. The most likely cause of continual gas bleeding is hydrogen, rather than air. [2]

  3. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

  4. Nozzle and flapper - Wikipedia

    en.wikipedia.org/wiki/Nozzle_and_flapper

    The nozzle and flapper mechanism is a displacement type detector which converts mechanical movement into a pressure signal by covering the opening of a nozzle with a flat plate called the flapper. [1] This restricts fluid flow through the nozzle and generates a pressure signal.

  5. Infiltration (HVAC) - Wikipedia

    en.wikipedia.org/wiki/Infiltration_(HVAC)

    Smoke candles and blower-door tests can help identify less-than-obvious leaks. The Weatherization article describes methods for energy savings further. If infiltration is reduced below 0.35 ACH, it is recommended that mechanical ventilation (typically an exhaust fan or heat recovery ventilation ) be implemented.

  6. 9 Mistakes You Should Never Make With A Slow Cooker - AOL

    www.aol.com/9-mistakes-never-slow-cooker...

    Maybe we all watched a little too much This Is Us and are still mourning the loss of Jack Pearson, or maybe a kitchen mishap as a child has left us wary of slow cookers. Whatever the case may be ...

  7. My Husband's Grandpa Cracked the Code to the Best-Ever ... - AOL

    www.aol.com/husbands-grandpa-cracked-code-best...

    A traditional snickerdoodle recipe includes unsalted butter, granulated sugar, eggs, all-purpose flour, cream of tartar, baking soda and salt.

  8. Dick Van Dyke, 98, Says He's 'Not Afraid' of Dying: 'I'm ...

    www.aol.com/dick-van-dyke-98-says-150000707.html

    Dick Van Dyke knows he won't be around forever, but when death comes, he won't be afraid.. The legendary entertainer, 98, stars in Coldplay's latest music video for their song, "All My Love," and ...

  9. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    A dual check backflow preventer is similar to a double check valve in operation. It has two independent spring-loaded check valves. However, dual check valves usually do not include shutoff valves, may or may not be equipped with test cocks or ports, and is generally less reliable than a double check valve.

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