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A circulation pump moves liquid through a piping system, commonly used in heating and cooling systems. It has a housing, impeller, motor, and support bearings. It can also be used for mixing liquids and powders. Materials used vary based on the solution and operating conditions.
Many fluid systems require frequent or continuous flow of liquid. A circulation pump is used to move a liquid through a fluid piping system. This type of pump is commonly used in heating and cooling systems and in applications that require a mixture of liquids and powders. Choosing a circulation pump for a specific application is usually based on the type of solution, flow rate and operating conditions, such as temperature and pressure.
A domestic water heating system works by using a circulation pump to move hot water from a boiler through a series of metal pipes. The heat is given off as the water flows through the pipes and back into the boiler. The heat generated by hot water in pipes can heat up a room in a house. A water circulation pump is turned on and off to move hot water through the pipes and maintain a set temperature in the room. Water cooling systems work in a very similar way, but use cold water for cooling.
The main parts of a circulation pump are the housing, impeller, motor and support bearings. The pump housing typically consists of a cavity that holds the pump’s moving parts, while maintaining a watertight seal. A motor is used to rotate the impeller inside the pump housing. The impeller is supported by bearings and has a series of blades that push the fluid in the desired direction.
A circulation pump can also be used when a liquid and a powder are combined in a solution. In some applications, the addition of a powder material must be carefully controlled to ensure that the final properties of the blended solution meet specifications. Many mixing processes use a vessel with an impeller near the bottom that rotates constantly to keep the materials mixed together. A piping system is used to circulate the solution out of the vessel so that the powder can be added to the flowing liquid to ensure an even addition.
Most circulation pumps are electrically powered, but they can also be powered by air pressure or hydraulic fluid. The materials used in making a circulation pump will vary based on the type of solution and operating conditions. For piping systems that use water, aluminum or cast iron housings with bronze or stainless steel internal components are often used. For applications using highly corrosive fluids or operating at elevated temperatures or pressures, titanium, metal alloys, and chemically resistant plastics can be used to maintain acceptable pump performance and life.
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