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  2. Air mattress - Wikipedia

    en.wikipedia.org/wiki/Air_mattress

    An air mattress as might be used for temporary guest accommodation. An air mattress is an inflatable mattress or sleeping pad.. Due to its buoyancy, it is also often used as a water toy or flotation device, and in some countries, including the UK and South Africa, is called a lilo ("Li-lo" being a specific trademark — derived from the phrase "lie low") or a Readybed.

  3. Thermal expansion valve - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion_valve

    A thermal expansion valve is a key element to a heat pump; this is the cycle that makes air conditioning, or air cooling, possible. A basic refrigeration cycle consists of four major elements: a compressor, a condenser, a metering device and an evaporator. As a refrigerant passes through a circuit containing these four elements, air ...

  4. Control valve - Wikipedia

    en.wikipedia.org/wiki/Control_valve

    Air-actuated control valves each with a 4–20 mA "I to P" converter integral to a valve positioner. In this example each positioner is comparing the valve stem travel against control signal, and applying any correction. The opening or closing of automatic control valves is usually done by electrical, hydraulic or pneumatic actuators. Normally ...

  5. List of valves - Wikipedia

    en.wikipedia.org/wiki/List_of_valves

    Gate valve, mainly for on–off control, with low pressure drop; Globe valve, good for regulating flow. Uses a cylinder movement over a seat; Knife valve, similar to a gate valve, but usually more compact. Often used for slurries or powders on–off control; Needle valve for accurate flow control; Pinch valve, for slurry flow regulation and ...

  6. The best comfy air mattresses of 2024 - AOL

    www.aol.com/news/best-comfy-air-mattresses-2024...

    Insta-Bed Raised Air Bed $ at Amazon. Insta-Bed Raised Air Bed $ at Target. Insta-Bed Raised Air Bed $ at Kohl's. This air mattress checks many of the same boxes as other options on the list—it ...

  7. Valve actuator - Wikipedia

    en.wikipedia.org/wiki/Valve_actuator

    The blue valve body is visible in-line with the pipe. The valve actuator opens or closes the butterfly disc of the valve based on electrical signals sent to the actuator. Another valve actuator is visible in the background, with windows to indicate the valve position. A valve actuator is the mechanism for opening and closing a valve. Manually ...

  8. Cialis and Alcohol: Is it Safe?

    www.aol.com/cialis-alcohol-safe-115800912.html

    How Cialis Works. Cialis is a prescription medication designed to treat ED. It’s approved for this use by the U.S. Food and Drug Administration (FDA). Tadalafil is the active ingredient in Cialis.

  9. Flow control valve - Wikipedia

    en.wikipedia.org/wiki/Flow_control_valve

    The most common final control element in the process control industries is the control valve. The control valve manipulates a flowing fluid, such as gas, steam, water, or chemical compounds, to compensate for the load disturbance and keep the regulated process variable as close as possible to the desired set point. [1]