PUMP PIPING AND VALVES(Primary components)
Detroit diesel electronic fire commander manual#
Manual override is necessary for electrical shift.Relatively complex mechanical operation.Full power if engine is available for pumping.For some engines a limited amount of power is.While moving, pump discharge dependent on engine.Independent drive system, can pump while driving.Stops water from entering the gears and bearings.Wear is common and adjustment necessary.Pushed into a stuffing box by packing gland.Rope fibers impregnated with graphite or lead.Can come in contact with the Hub when overheated.
Stops water from reentering the intake eye. Minimized by Stripping edge or (Cut Water). Please note the impeller rotation.Ī centrifugal pump impeller slings the liquid out Impeller in the volute and by maintaining a closeĬlearance between the impeller and the volute at Velocity and the volute forces the liquid toĭischarge from the pump converting velocity to Three factors influencing discharge pressure.Ĭomponents of a centrifugal pump are the impellerĪnd the volute. Water is confined in its travel, which increases. Water contacts the vanes and is thrown outward. Collects the water and confines it in order toĬonvert the velocity to pressure and directs it. Transmits energy in the form of velocity to the. Throws water from the center to the outer edge. Needs a spinning disk to create centrifugal. Gives the pump flexibility and versatilityĮliminating the Positive Displacement pump as. Uses velocity to convert water to pressure. Will not discharge a definite amount of water. Off center mount for increased pressure.ĬENTRIFUGAL PUMPS(Non Positive Displacement). Centrifugal force forces the vanes out. Due to the close meshing of the teeth water and. As the teeth rotate its moved toward the. A hand crank operated gears to force water out. A piston in a cylinder used to force water out.
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