What is one primary role of a suction pump?

The primary role of a suction pump is to draw fluid into the pump. This function is essential for the operation of various liquid handling systems, as it initiates the flow of fluid into the pump mechanism. Suction pumps create a vacuum that allows atmospheric pressure or pressure from a higher fluid source to push the liquid into the pump chamber. This process is critical for several applications, including transferring fluids in plumbing systems, where it's necessary to effectively move liquid from one location to another.

The focus on extracting fluid rather than just moving it is integral to many pumping operations. Elevating water, for instance, involves a different mechanism related to pressure dynamics, rather than the simple act of drawing fluid in. Similarly, increasing pressure in the main line typically pertains to pump types designed specifically for that purpose, rather than suction pumps. Lastly, while removing air from a pipe system can be a related action, it does not define the primary role of suction pumps, which is centered on fluid intake.