Specifications include, but are not limited to: A. Tar River Raw Water Pump (No 3) 1. Function: Pump raw water from the existing Tar River Raw Water Pump Station to the Tar River Water Treatment Plant. 2. Number of Pumps 1 3. Performance Requirements a. Pump Speed: 880 RPM b. Pump Type: Vertical Turbine c. Max Allowable NPSHR: 14.45 ft d. Capacity: 8,400 gpm e. Total Dynamic Head: 76.5 ft f. Min. Bowl Efficiency: 83.9% g. Min Pump Efficiency: 80% h. Max. Flow Ratio (rated / BEP):98.6 (bowl) 102% (pump) i. Shut Off Head (min/max) 150 feet 4. Pump Characteristics a. Minimum number of Stages: 2 b. Impeller Type: Enclosed c. Impeller Material: Nickel Alum Bronze d. Maximum sphere size: 1.00 inches e. Minimum pump column size: 20 inch f. Minimum Discharge Size: 20 inch, 150 lb. flanges g. Minimum Lineshaft Size: 1.9375” h. Lineshaft Lubrication: Oil Lube i. Lineshaft Material: 416 stainless steel j. Lineshaft Coupling Material: 416 stainless steel k. Enclosing Tube size 3.0” l. Enclosing Tube material Steel schedule 80 threaded m. Minimum Bowl Shaft Size: 2.6875 inches n. Bowl Material: Cast Iron o. Bell Diameter: 10-inch p. Strainer Material: 316 Stainless Steel, q. Strainer Length: 4.38-inch r. Floor Clearance: 9.5 inch 5. Motor Characteristics a. Maximum Horsepower: 200 HP b. Maximum Speed: 900 rpm c. Voltage: 460 V, 3 phase, 60 Hz
