Line shaft turbines are composed of four major parts, starting at the bottom of the illustration: The pumping unit (Bowl assembly) The water column. The discharge head. The motor or drive unit. The pumping unit consists of a bowl assembly and a suction bell. Fluid enters the pumping unit at the suction bell. It then passes to the bowl assembly, which consists of an impeller and a bowl or casing. The bowl surrounds the impeller and serves the same function as the volute of an endsuction centrifugal pump. If the pump contains more than one bowl the pumped fluid passes upward through each bowl assembly. The amount of energy and pressure added to the fluid is directly proportional to the number of bowls. For example, if one bowl produces 50 psi, then two bowls will produce 100 psi, and three will produce 150 Psi. The amount of fluid pumped is not changed by the addition of pump bowls. The amount of fluid a pump can handle depends upon the capabilities of the first impeller. The ability to add bowls to obtain high pressures makes this kind of pump very popular for use in deep wells in industry, irrigation, and municipalities. 1.1.5- The entire bowl assembly of a lineshaft turbine is usually submerged. Fluid travels from the bowl assembly through the water column. The column contains the drive shaft and radial bearings. These bearings help to keep the shaft aligned. They can be made of bronze or rubber. Rubber bearings are usually water lubricated. Bronze bearings are usually oil lubricated. The oillubricated bearing generally works better in deep wells (over 300 ft). Common Vertical Turbine Pumps
Line shaft turbines are composed of four major parts, starting at the bottom of the illustration: The pumping unit (Bowl assembly) The water column. The discharge head. The motor or drive unit. The pumping unit consists of a bowl assembly and a suction bell. Fluid enters the pumping unit at the suction bell. It then passes to the bowl assembly, which consists of an impeller and a bowl or casing. The bowl surrounds the impeller and serves the same function as the volute of an endsuction centrifugal pump. If the pump contains more than one bowl the pumped fluid passes upward through each bowl assembly. The amount of energy and pressure added to the fluid is directly proportional to the number of bowls. For example, if one bowl produces 50 psi, then two bowls will produce 100 psi, and three will produce 150 Psi. The amount of fluid pumped is not changed by the addition of pump bowls. The amount of fluid a pump can handle depends upon the capabilities of the first impeller. The ability to add bowls to obtain high pressures makes this kind of pump very popular for use in deep wells in industry, irrigation, and municipalities. 1.1.5- The entire bowl assembly of a lineshaft turbine is usually submerged. Fluid travels from the bowl assembly through the water column. The column contains the drive shaft and radial bearings. These bearings help to keep the shaft aligned. They can be made of bronze or rubber. Rubber bearings are usually water lubricated. Bronze bearings are usually oil lubricated. The oillubricated bearing generally works better in deep wells (over 300 ft). Common Vertical Turbine Pumps
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