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E41 • T41 Series Turbine Pumps

Bulletin E41. November 2009. E41 T41 Series Regenerative Turbine Pumps Capacities to 22 GPM. Heads to 600 Feet Temperatures to 300 F. MTH Pumps . E41 T41 Series Regenerative Turbine Pumps MTH E41 T41 Series required horsepower versus pressure to passageway velocities. Special close - coupled and pedestal mounted curve for regenerative Turbine Pumps . ramps are responsible for an almost regenerative Turbine Pumps represent By optimizing these for each E41/ shock-less fluid entry into the impeller the most economical, high perfor- T41 Series pump, peak efficiency is blades and account for the high inlet mance alternative for low flow (1/2 improved and off peak horsepower efficiency in the E41/T41 Series to 22 GPM) clean fluid applications requirements are reduced as well. Pumps . involving moderate to high pressures Impeller Blades E41 Series (heads to 600 feet). After the most favorable impeller Similar to the T31 Series , the E41.

Copright 200 MTH Tool Compan Inc. Horizontal Close Coupled E41 Series Optional 90° Position Optional 270° Position Optional 180° Position 1 D 3/8 1 1 NPT

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  Series, Horizontal, Close, Coupled, E41 t41 series, Horizontal close coupled

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Transcription of E41 • T41 Series Turbine Pumps

1 Bulletin E41. November 2009. E41 T41 Series Regenerative Turbine Pumps Capacities to 22 GPM. Heads to 600 Feet Temperatures to 300 F. MTH Pumps . E41 T41 Series Regenerative Turbine Pumps MTH E41 T41 Series required horsepower versus pressure to passageway velocities. Special close - coupled and pedestal mounted curve for regenerative Turbine Pumps . ramps are responsible for an almost regenerative Turbine Pumps represent By optimizing these for each E41/ shock-less fluid entry into the impeller the most economical, high perfor- T41 Series pump, peak efficiency is blades and account for the high inlet mance alternative for low flow (1/2 improved and off peak horsepower efficiency in the E41/T41 Series to 22 GPM) clean fluid applications requirements are reduced as well. Pumps . involving moderate to high pressures Impeller Blades E41 Series (heads to 600 feet). After the most favorable impeller Similar to the T31 Series , the E41.

2 By combining the latest concepts in profile has been determined for a takes advantage of our custom hydraulic Turbine pump design with particular water passageway cross- manufactured dual face D3 motors precision computer controlled manu- section, MTH calculates the number that incorporate a 304 stainless facturing, the E41/T41 Series Pumps of blades needed to maximize the steel shaft and heavy-duty bearing. deliver high efficiency operation even performance of that pump. Cur- The stainless steel shaft eliminates at low NPSH. Costs are controlled rent blade design in E41/T41 Series the necessity of a shaft sleeve, by efficient manufacturing processes Pumps increases both efficiency and thereby reducing the parts count and highly optimized pump designs. design pressure without the manu- and simplifying maintenance and Maintenance costs are kept to a facturing difficulties associated with servicing procedures.

3 All D3 motors minimum by combining an easily producing contoured blade impellers. also feature a two-pole 50//60Hz serviceable design with the use of State-of-the-art computer controlled rating, as well as CE Mark approval high quality components to provide machines simplify manufacturing of useful for OEM's with worldwide long life. the various MTH impellers utilized customers. The three-phase Water Passage Design in the E41/T41 Series . The result is versions of the D3 motors feature MTH masters one of the most critical a high performance pump providing a compact TEFC enclosure and a design considerations for regenera- efficiency characteristics exceeding range from 1/3 to 3HP. The single tive Turbine Pumps -- the shaping those of more expensive units. phase D3 motors have an ODP. of water passageways to achieve enclosure and a range from 1/3. NPSH Requirements highest capacity and pressure while to 2HP.

4 The E41 is available in E41/T41 Series regenerative Turbine minimizing horsepower requirements. horizontal close - coupled and vertical Pumps meet low net positive suction By optimizing water passageway flange mounted configurations only. head (NPSH) requirements without cross-sectional profiles for each Please see Design Features for more efficiency loss. This is achieved impeller, MTH has improved both ef- detailed information on both E41 and by keeping the inlet fluid velocity ficiency and pressure in the E41/T41 T41 motor options. low and then gently accelerating Series , exceeding the levels realized by previous techniques. Impeller Profile Design Features One of the most notable improve- MTH E41 and T41 Series Pumps C-face with two pole 50//60 Hz ratings ments in regenerative Turbine pump utilize the same major components, as well as an upgraded heavy-duty technology incorporated in E41/T41 and are identical in performance, but bearing for extended service life.

5 The Series Pumps involves the ability utilize different motors. E41 Pumps three-phase motors have a TEFC. to determine the optimum impeller are restricted to close - coupled opera- IP55 enclosure and power capabil- width and blade length. These fac- tion on our own custom designed D3 ity from 1/3HP thru 3HP, while the tors have a significant effect on the motors. The D3 motors have a dual single-phase motors have an ODP. STANDARD MATERIALS LIMITATIONS. 316 STAINLESS Discharge Pressure 300 PSI. PART BRONZE FITTED ALL IRON ALL BRONZE STEEL Seal Pressure* 200 PSI. Cast Iron Cast Iron Bronze Stainless Steel Suction Pressure (Min) 26 Hg Vac. Motor Bracket ASTM A48 ASTM A48 ASTM B62 AISI 316 Speed 3600 RPM. Cast Iron Cast Iron Bronze Stainless Steel Temperature Cover ASTM A48 ASTM A48 ASTM B62 AISI 316. Standard Construction -20 F. Bronze Bronze Corosion- Impeller Carbon Steel Ceramic Seal Seat-Water +230 F.

6 ASTM B62 ASTM B62 Resistant Alloy Bronze Stainless Steel Bronze Stainless Steel Ni-Resist Seal Seat-Water +230 F. 1. Sleeve/Bushing Silicon Carbide Seal Seat ASTM B16 AISI 316 ASTM B16 AISI 316. Stainless Steel Stainless Steel Stainless Steel Stainless Steel & Internal Seal Flush +250 F. 2. Shaft Cooling Jacket +300 F. AISI 304 AISI 304 AISI 304 AISI 304. O Rings Buna N Buna N Buna N Viton A Horsepower Seals Buna/Ceramic Buna/Carbon Buna/Ceramic Viton/Ceramic C3-P3-D3 3 HP. Seats Buna/Carbon Buna/Ni-Resist Buna/Carbon Viton/Carbon C15-P15 15 HP. 1. T41 Only: Sleeves for 3HP and under; Bushings for 5HP and over. *Suction Pressure Plus a Percentage of Differential Pressure 2. E41 Only: See Shaft Sleeves under Design Features for T41 Shaft information. Copyright 2009 MTH Tool Company, Inc. E41 T41 Series . Design Features (Continued). IP21 enclosure and range from 1/3HP.

7 To 2HP. All D3 motors feature a 304. stainless steel shaft and CE mark ap- proval. T41 Pumps can accept most commonly available motors through the use of close or flexible coupling. For wider fluid compatibility, T41 units 3HP and under feature a protective motor shaft sleeve, while motors 5HP. and over utilize a corrosion-resistant 316 stainless steel shaft. Motors for the T41 Series come in ODP, TEFC, and Explosion-proof enclo- sures and allow operation at two pole or four pole speeds (3450/2880 or 1750/1450 RPM) ranging from 1/3HP. to 3HP (C3/P3 single or three phase) Materials. E41 Pumps do not utilize a rotated to 90 degree, 180 degree and and 5HP to 15HP (C15/P15 three shaft sleeve due to the use of a stan- 270 degree positions. phase only). dard 304 stainless steel motor shaft. Best Efficiency Steep Operating Characteristics Water Flinger New pump design optimizes efficien- Near-constant capacity is maintained A water flinger provides added pro- cy for each size.

8 Over wide variations in pressure. tection to ball bearings in the event of High shut-off pressure overcomes Non-Cavitating seal leakage. E41/T41 Series Pumps may be temporary line resistance. Simple Construction operated under adverse inlet condi- Self-Adjusting Impeller E41/T41 Series Pumps contain only tions without audible or measurable A hydrodynamic film on each side of three major components, allowing for cavition. the impeller positions it for long life. easy service. The impeller exerts no thrust load on Low NPSH. bearings. Pump operates equally End Suction Top Discharge New inlet design provides superior well in a vertical or horizontal position. E41/T41 Series Pumps fit into small fluid handling ability at low head inlet spaces easily. Discharge can be conditions. Mechanical Seals Bronze fitted Pumps have Buna N. elastomers, high temperature carbon, and ceramic seats for best hot water service.

9 Optional seats and materials Optional Features are also available. CONSTRUCTION MATERIALS. bottom of the strainer can be easily 300# Case Working Pressure Bronze fitted, all iron, all bronze and and quickly removed for screen clean- Rigid structure is designed for maxi- 316 stainless steel are available as ing or replacement. mum casing strength. stock materials. Consult the factory for special materials. 100% Tested Every pump is fully tested to verify BEARING PEDESTALS. All T41. performance prior to shipment. models can be pedestal mounted for Volatile Fluid Handling flexible drive. Turbine impeller handles vapors in VERTICAL FLANGE MOUNT. All excess of 20% by volume, minimizing sizes are available as vertical mount the possibility of vapor locks. units, with eight standard flange types O Ring Gaskets available. O ring seals are used throughout the E41/T41 Series Pumps to assure INTERNAL FLUSH LINE.

10 Internal SEALLESS CANNED VERSION. For sealing and ease of service. passageway flushes mechanical seal difficult to seal applications seats. When used with the optional Shaft Sleeve 300 F SEAL COOLING JACKET. Ex- silicon carbide seal seat, allows op- T41 Pumps with motors 3HP and tends maximum working temperature eration in water up to 250 F. under utilize a protective shaft sleeve of the pump to 300 F or higher. Ports of an appropriate metallurgy accord- INLET STRAINER. A 90 suction are provided for an external fluid cool- ing to the Standard Materials table. strainer with a replaceable screen is ing source. The cooling jacket adds 2. Motors 5HP and over have a 316 available for installation in the suction 1/2 to the standard pump length and stainless steel shaft with an impel- line to help prevent foreign materials is available for 1/3HP up to 3HP T41. ler bushing as listed under Standard from entering the pump.


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