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  2. 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 ...

  3. Airlock - Wikipedia

    en.wikipedia.org/wiki/Airlock

    An airlock [a] is a room or ... A gradual pressure transition minimizes air temperature fluctuations, which helps reduce fogging and condensation, ...

  4. Double dump valve - Wikipedia

    en.wikipedia.org/wiki/Double_dump_valve

    Double dump valves are used to discharge a flow of material while at the same time serving as an airlock transition point to preserve the pressure differential above and below the valve. This type of material handling valve is ideal for use with bulky or abrasive materials that would tend to jam or damage a rotary feeder.

  5. Air lock - Wikipedia

    en.wikipedia.org/wiki/Air_lock

    The gas, being less dense than the liquid, rises to any high points. This phenomenon is known as vapor lock, or air lock. Flushing the system with high flow or pressures can help move the gas away from the highest point. Also, a tap (or automatic vent valve) can be installed to let the gas out.

  6. Caisson (engineering) - Wikipedia

    en.wikipedia.org/wiki/Caisson_(engineering)

    Air lock diving-bell plant – Underwater work support barge used at Gibraltar, a mobile barge-mounted engineering caisson used in the Port of Gibraltar; Cofferdam – Barrier allowing liquid to be pumped out of an enclosed area, a temporary water-excluding structure built in place, sometimes surrounding a working area as does an open caisson.

  7. Rotary valve - Wikipedia

    en.wikipedia.org/wiki/Rotary_valve

    A rotary valve (also called rotary-motion valve) is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. [1] The common stopcock is the simplest form of rotary valve. Rotary valves have been applied in numerous applications, including:

  8. February is the best time to buy a new mattress: Here are the ...

    www.aol.com/lifestyle/mattresses-will-be-marked...

    A mattress can be a significant investment. You can get a good bed for $500, but a great one will cost you $1,500 or more. Thankfully, February is the best time to shop — Presidents' Day brought ...

  9. Trickle valve - Wikipedia

    en.wikipedia.org/wiki/Trickle_valve

    Unlike rotary airlock valves which are driven by either an electric motor or a gas or air-powered motor, trickle valves require no external power source and are therefore well-suited for use in mechanical trenchers, where a dust-free environment in the pinnacle truss and axle bore is required for smooth operation. Trickle values were originally ...