MTH T51P BF TURBINE PUMP + MARATHON MOTOR (5.0 Hp) ZL145T 3450RPM 208/230/460V 3PH NEW $1289 MTH Pumps T51P-BF, Turbine Pump. Cast Iron/ Bronze Fitted Construction. 1.25" x 1.00. close coupled to a 5 hp MARATHON PART# ZL145TTFR5508AA 37C-1254-05-TEF 5 HP NEW NEVER USED. TYPICAL SMUDGES AND SCUFFS FROM STORAGE T51 / E51 Series Turbine Pumps Information High Pressure, Low Flow Compact Design ? Capacities to 22 GPM ? Heads to 600 Feet ? Temperatures to 300F MTH masters one of the most critical design considerations for regenerative turbine pumps -- the shaping of water passageways to achieve highest capacity and pressure while minimizing horsepower requirements. By optimizing water passageway cross-sectional profiles for each impeller, MTH has improved both efficiency and pressure in the E41/T41 Series, exceeding the levels realized by previous techniques. One of the most notable improvements in regenerative turbine pump technology incorporated in E41/T41 Series pumps involves the ability to determine the optimum impeller width and blade length. These factors have a significant effect on the required horsepower versus pressure curve for regenerative turbine pumps.By optimizing these for each E41/T41 Series pump, peak efficiency is improved and ?off peak? horsepower requirements are reduced as well. Impeller Blades After the most favorable impeller profile has been determined for a particular water passageway crosssection, MTH calculates the number of blades needed to maximize the performance of that pump. Current blade design in E41/T41 Series pumps increases both efficiency and design pressure without the manufacturing difficulties associated with producing contoured blade impellers. State-of-the-art computer controlled machines simplify manufacturing of the various MTH impellers utilized in the E41/T41 Series. The result is a high performance pump providing efficiency characteristics exceeding those of more expensive units.