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 Fountain Pumps See the following Images of fountains for styles available How Propellar Pump Units Work We use Air-O-Lator pumps w/Franklin® Electric submersible motors, which are water-cooled and water-lubricated. A scientifically engineered foul resistant propeller rotates at a shaft speed of 3450 rpm. PUMPAGE, AERATION AND MIX The Carnival 4VANE and 8VANE propeller pump units move a large volume of water through a converging nozzle, causing shearing to occur, breaking the water into micro droplets and exposing more water surface area to the atmosphere. As the water returns to the “parent body”, each droplet drags an additional amount of water with it, causing an “induced flow” effect, which in essence increases the surface area of the lake. All of these factors result in excellent aeration. Another event that occurs simultaneously is the cooling that takes place. This cooler water tends to sink, since it is heavier and denser, displacing warmer water that is trying to rise.  CARNIVAL - PROPELLER PUMP 4 VANE  CENTRIFUGAL PUMP UNITS Air-O-Lator, as on the propeller pump unit, uses the Franklin Electric, 3450-rpm motor on this unit. However, a centrifugal pump is employed. CARNIVAL - PROPELLAR PUMP 8 VANE  PRESSURE AND AESTHETICSHundreds of hours of engineering design have gone into the development of the Font’N-Aire centrifugal pump. The unique center discharge design allows for high pressure to develop, thus permitting terrific heights to be achieved at far less horsepower compared to competitive fountain equipment. The centrifugal pump unit spray patterns of the GALAXY, NOVA, SKYWARD, SOLACE, NORTHSTAR and DIANA, while aerating water, should only be used for aesthetics since the volume is not created as with a propeller pump unit. The centrifugal pump allows cooling to occur by evaporation since a fine “mist” is developed due to the pump pressures created. SKYWARD - CENTRIFUGAL PUMP Advantages. . . Optional Equipment... Cable Selection • Stainless steel Franklin Electric submersible motor, engineered for submergence, watercooled, water-lubricated. No oil to contaminate or rob energy. U.L. recognized, C.S.A. certified. • 5/8” diameter, 1-1/2” long motor shaft. No long shafts to bend or become out of balance. • No seals or bearings to maintain. • High speed, foul resistant propeller or impeller, provide high shear water spraying action. No lazy spray or bubbles. • One piece, square flotation for stability. No oscillation can occur as with round floats. • Water tight removable 100’ power cable standard. Cable available in longer lengths by 50’ increments. • Three year limited warranty. • ETL listed (ANSI/UL508) control panel with time clock, ELCI* (single phase only) and as required single phase or three phase controls. 
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