Self Priming Pumps

The term "self-priming" describes a centrifugal pump that can use an air-water mixture to reach fully primed pumping conditions. A standard centrifugal pump would air-bind under these conditions but a self-priming pump overcomes the problem by mixing air with water to create a fluid with pumping properties. The pump then gets rid of the air and moves the fluid only. Self-priming pumps are designed with a reservoir built into the casing so that the pump, once primed the first time, will always have fluid in it. It is important to note that a self-primer must have water in the casing. You cannot pull any self priming pump out of the box, turn it on, and expect it to pump. "Self priming" refers to the pump's ability to repeat the priming cycle once it is initially primed.

Features:

• Low NPSHR.
• Available in different materials of construction.
• High flow rates.
• Good for suction lift conditions.