Sanitary Pumps Information

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Sanitary pumps are used to transport and meter solutions, slurries, and colloids of food and agricultural materials in operations such as food processing that require cleanliness. There are four basic types of sanitary pumps: centrifugal, positive displacement, jet, and airlift. Centrifugal pumps apply centrifugal force to generate velocity, use rotating impellers to increase velocity, and push fluids through an outlet valve. Positive displacement pumps use rollers, gears, or impellers to move fluid into a fixed cavity so that when liquid exists, the vacuum that is created draws in more fluid. Jet pumps force fluid through a nozzle, converting the fluid’s energy into velocity energy. Airlift pumps mix air or gas with the liquid media so that the air-liquid mixture, with a lower specific weight than the liquid, rises in the pipe and is discharged above the level of the liquid.   


A Progressive Cavity Pump Processes Soft Cheese


Sanitary pumps are available with a variety of features. Adjustable speed pumps can operate at speeds selected by an operator while continuous duty pumps maintain performance specifications at 100% duty cycle. Run dry capable pumps can operate without pumped fluid or external lubrication for an extended period of time. Some wastewater pumps include a backup battery, grinding mechanism, pressure gage, control panel, level control device, thermal overload protection, strainer, filter, or suction. Other wastewater pumps are belt-driven, close coupled, explosion-proof, frame mounted, hygienic, jacketed, sealless, self-priming, portable, or are configured to pump sticky or stringy materials.  Multistage, reversible, plug-in, and washdown duty capable devices are also available. Sanitary pumps can move media either vertically or horizontally, depending on the direction of the pump stator / rotor assembly. 


Important specifications for sanitary pumps include maximum discharge flow, maximum discharge pressure, inlet size, discharge size, and media temperature. Power sources include alternating current (AC), direct current (DC), compressed air, gasoline, diesel fuel, hydraulic systems, natural gas, steam, water, and solar energy. Sanitary pumps that do not include a power source typically provide a drive shaft for connection to a motor. Manually powered pumps rely upon hand or foot power. 


Sanitary pumps are used in a variety of commercial and industrial applications. Examples include agriculture and horticulture, brewery and distillery, dairy, food processing, food service, medical, municipal, OEM supply, and pharmaceutical and biotechnology applications. Mandatory sanitation standards vary by product and depend on the regulatory agency that governs processing activities, as well as local or on-site inspectors. Various organizations publish standards. Examples include the Food and Drug Administration (FDA), United States Department of Agriculture (USDA), and International Association of Food Industry Suppliers (IAFIS). 

Related Products & Services

  • Centrifugal Pumps

    Centrifugal pumps consist of a set of rotating vanes, enclosed within a housing or casing, that are used to impart energy to a fluid through centrifugal force.

  • Condensate Pumps

    Condensate pumps are used to collect and transport condensate back into a steam system for reheating and reuse, or to remove unwanted condensate from an HVAC or appliance collection pan.

  • Diaphragm Pumps

    Diaphragm pumps use a diaphragm that moves back and forth to transport liquids from one place to another.

  • Drum Pumps

    Drum pumps are used to transfer materials from a container into a process or other container. They may be electrically, hydraulically, or pneumatically powered depending on the working environment or application.

  • Gear Pumps

    Gear pumps use intermeshing gears to pump various types of liquids. Typically, one gear is the driver and the other is free wheeling. The gears have very tight tolerances so that the fluid being pumped cannot pass through them. Common uses for gear pumps include high pressure, metering, and flow control applications.

  • Metering Pumps

    Metering pumps are positive displacement pumps designed to dispense precise amounts of fluids and measured flow control.

  • Screw Pumps

    Screw pumps are rotary, positive displacement pumps that have one or more screws to transfer fluids or materials along an axis. 

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