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  2. Float switch - Wikipedia

    en.wikipedia.org/wiki/Float_switch

    A pedestal sump pump with a float switch. A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float.

  3. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    A pressure switch is a form of switch that operates an electrical contact when a certain set fluid pressure has been reached on its input. The switch may be designed to make contact either on pressure rise or on pressure fall. Pressure switches are widely used in industry to automatically supervise and control systems that use pressurized fluids.

  4. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Level sensors detect the level of liquids and other fluids and fluidized solids, including slurries, granular materials, and powders that exhibit an upper free surface. Substances that flow become essentially horizontal in their containers (or other physical boundaries) because of gravity whereas most bulk solids pile at an angle of repose to a ...

  5. Grinder pump - Wikipedia

    en.wikipedia.org/wiki/Grinder_pump

    A pump for household use is usually 1 hp, 1.5 hp or 2 hp. A cutting mechanism macerates waste and grinds items that are not normally found in sewage, but may get flushed down the toilet. The pump has a level sensor either built into the pump, called “sensing bells,” or attached externally to the pump, typically a float switch. (The level ...

  6. Gems Sensors & Controls - Wikipedia

    en.wikipedia.org/wiki/Gems_Sensors_&_Controls

    Gems Sensors and Controls is a global manufacturer of application engineered sensors. Founded in 1955, it makes level, pressure and flow sensors for use in a wide range of fluids across industry. Gems Sensors is a division of Fortive Corporation, a company with a presence around the world. The company provides manufacturing services in North ...

  7. Flow measurement - Wikipedia

    en.wikipedia.org/wiki/Flow_measurement

    Flow measurement is the quantification of bulk fluid movement. Flow can be measured using devices called flowmeters in various ways. The common types of flowmeters with industrial applications are listed below: Obstruction type (differential pressure or variable area) Inferential (turbine type) Electromagnetic