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  2. Air lock - Wikipedia

    en.wikipedia.org/wiki/Air_lock

    Air lock problems often occur when one is trying to recommission a system after it has been deliberately (for servicing) or accidentally emptied. Take, for example, a central heating system using a circulating pump to pump water through radiators. When filling such a system, air is trapped in the radiators. This air has to be vented using screw ...

  3. How to Fix Your Frozen Pipes, According to Experts - AOL

    www.aol.com/keep-pipes-freezing-winter-according...

    And if the water does freeze, your pipes could crack, warp, or even burst as the water stretches and then ultimately thaws, leaving holes in your plumbing system. According to Sanders, pipes near ...

  4. Should I turn off water if pipes are frozen? How to keep ...

    www.aol.com/turn-off-water-pipes-frozen...

    What to do when water pipes freeze. Here are tips from The Red Cross. If you turn on a faucet and only a trickle comes out, suspect a frozen pipe. Likely places for frozen pipes include against ...

  5. How homeowners can prevent pipes from freezing during winter

    www.aol.com/weather/homeowners-prevent-pipes...

    Check throughout the home for areas where water supply lines are located in unheated areas of the house. "Take measures to prevent the flow of cold air in these areas," Green Apple Mechanical said.

  6. Airlock - Wikipedia

    en.wikipedia.org/wiki/Airlock

    Civil engineering projects that use air pressure to keep water and mud out of the workplace use an airlock to transfer personnel, equipment, and materials between the external normabaric environment and the pressurized workplace in a caisson or sealed tunnel. The airlock may need to be large enough to accommodate a whole working shift at the ...

  7. Hydrolock - Wikipedia

    en.wikipedia.org/wiki/Hydrolock

    Bent connecting rod after hydrolock Same connecting rod, turned 90°. Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it; most commonly the reciprocating internal combustion engine, the case this article refers to unless otherwise noted.

  8. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  9. Rotary feeder - Wikipedia

    en.wikipedia.org/wiki/Rotary_feeder

    Rotary airlock; The basic use of the rotary airlock feeder is as an airlock transition point, sealing pressurized systems against loss of air or gas while maintaining a flow of material between components with different pressure and suitable for air lock applications ranging from gravity discharge of filters, rotary valves, cyclone dust collectors, and rotary airlock storage devices to ...