Jabsco Pump Catalog

Flexible Impeller Pipe runs should always be kept as short and straight as possible. Plumbing should always be reinforced, non-collapsible hose of the recommended size. Electric pumps should always be installed in a dry, well-ventilated position as close to the liquid to be pumped as possible. Flexible impeller pumps must not be run dry. Bilge pumps and water pumps in particular should be fitted with a filter or strainer on the inlet plumbing to protect them from debris. These should be fastened to the boat structure to ensure their permanent location. Mount flexible impeller pumps so that some water is left in the pump body when the pump is shut off. This will prolong impeller life and speed priming. Pumps must be installed with the overboard discharge well above the waterline (both static and heeled) to avoid water siphoning back into the vessel. • Versatile: The flexible impeller pump combines the priming features of positive displacement type pumps with the general transfer ability of centrifugals. It will pump either thin or viscous liquids and can handle more solids in suspension than other types of rotary pumps. The pump can be mounted at any angle and will pump in either direction with equal efficiency. • Self-Priming: Pumps instantly with dry suction lifts up to 10' (3m) and up to 25' (8m) when wetted. • Simplicity: One moving part — a tough, long-life, wear-resistant flexible impeller. • Flexibility: The flexible impeller pump offers both high flow and high pressure according to motor and impeller design. • CE and ISO 8849 certification. • Ignition protection. HOW IT WORKS a. Flexible impeller blades create a nearly perfect vacuum for instant self-priming. b. As the impeller rotates, each successive blade draws in liquid and carries it from intake to outlet port. c. As the flexible impeller blades contact the offset cam, they bend with a squeezing action that provides a continuous, uniform flow. a b c 6 01 An Introduction to Pumps INTRODUCTION