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  2. Centrifugal pump selection and characteristics - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_pump_selection...

    Volume flow rate (Q), specifies the volume of fluid flowing through the pump per unit time. Thus, it gives the rate at which fluid travels through the pump. Given the density of the operating fluid, mass flow rate (ṁ) can also be used to obtain the volume flow rate. The relationship between the mass flow rate and volume flow rate (also known ...

  3. Piston pump - Wikipedia

    en.wikipedia.org/wiki/Piston_pump

    Piston pump compared to a plunger pump. A piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston. [1] Piston pumps can be used to move liquids or compress gases. They can operate over a wide range of pressures. High pressure operation can be achieved without adversely affecting flow rate.

  4. Vacuum pump - Wikipedia

    en.wikipedia.org/wiki/Vacuum_pump

    Throughput refers to the pumping speed multiplied by the gas pressure at the inlet, and is measured in units of pressure·volume/unit time. At a constant temperature, throughput is proportional to the number of molecules being pumped per unit time, and therefore to the mass flow rate of the pump. When discussing a leak in the system or ...

  5. Centrifugal pump - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_pump

    Common uses include water, sewage, agriculture, petroleum, and petrochemical pumping. Centrifugal pumps are often chosen for their high flow rate capabilities, abrasive solution compatibility, mixing potential, as well as their relatively simple engineering. [2] A centrifugal fan is commonly used to implement an air handling unit or vacuum cleaner.

  6. Affinity laws - Wikipedia

    en.wikipedia.org/wiki/Affinity_laws

    The affinity laws (also known as the "Fan Laws" or "Pump Laws") for pumps/fans are used in hydraulics, hydronics and/or HVAC to express the relationship between variables involved in pump or fan performance (such as head, volumetric flow rate, shaft speed) and power. They apply to pumps, fans, and hydraulic turbines. In these rotary implements ...

  7. ‘This is my Christmas miracle’: Man meets his biological ...

    www.aol.com/christmas-miracle-man-meets...

    An adopted man spent all 75 years of his life thinking he was an only child, only to discover he had several biological siblings waiting to welcome him to the family.

  8. Peristaltic pump - Wikipedia

    en.wikipedia.org/wiki/Peristaltic_pump

    The flow rate is an important parameter for a pump. The flow rate in a peristaltic pump is determined by many factors, such as: Tube inner diameter – higher flow rate with larger inner diameter. Pump-head outer diameter – higher flow rate with larger outer diameter. Pump-head rotational speed – higher flow rate with higher speed.

  9. Want to Improve Your Grip Strength? Here’s How - AOL

    www.aol.com/want-improve-grip-strength-195200429...

    Grip strength is a measure of how tightly you can hold onto an object in your hand and how long you can firmly grasp it. Experts explain how to build your grip strength.

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