š Key Concepts
ā¢ Hydronic heating systems use water as the heat-transfer medium, circulating it through pipes, radiators, or coils.
ā¢ Consider which pump type is best suited for continuous circulation of large volumes of water at relatively low pressure.
ā¢ Think about which pump type is most common in closed-loop heating and cooling systems on board ships and in buildings.
š Think About
ā¢ Which of these pump types is normally used where you need a steady, smooth flow rather than a pulsing or reciprocating flow?
ā¢ Which pump design is simple, reliable, and efficient for moving water in a closed loop without needing very high pressure or precise metering?
ā¢ Which of these pumps is commonly used for chilled water and hot water circulation in HVAC (heating, ventilation, and air conditioning) systems?
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Before You Answer
ā¢ Eliminate pump types that are better for high-pressure, low-flow, or metering applications rather than bulk circulation.
ā¢ Ask yourself which pump is widely used in cooling water systems, ballast systems, and general service where large volumes must be moved efficiently.
ā¢ Verify which pump type typically has an impeller that adds velocity to the water, converting it to pressure in a volute or diffuser.