T41 • E41 Series Regenerative Turbine Pumps
Capacities to 24 GPM
Heads to 600 Feet
Low NPSH Requirements
MTH T41 • E41 Series
Close-coupled and pedestal mounted regenerative turbine pumps
represent the most economical, high performance alternative for
low flow (1/2 to 22 GPM) clean fluid applications involving moderate
to high pressures (heads to 600 feet).
By combining the latest concepts in hydraulic turbine pump design
with precision computer controlled manufacturing, the T41/E41 Series
pumps deliver high efficiency operation even at low NPSH. Costs
are controlled by efficient manufacturing processes and highly optimized
pump designs. Maintenance costs are kept to a minimum by combining
an easily serviceable design with the use of high quality components
to provide long life.
Water Passage Design
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 T41/E41 Series, exceeding the levels realized by previous
One of the most notable improvements in regenerative turbine pump
technology incorporated in T41/E41 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 T41/E41 Series pump, peak efficiency is improved and “off
peak” horsepower requirements are reduced as well.
After the most favorable impeller profile has been determined
for a particular water passageway cross-section, MTH calculates
the number of blades needed to maximize the performance of that
pump. Current blade design in T41/E41 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 T41/E41 Series. The result is a high
performance pump providing efficiency characteristics exceeding
those of more expensive units.
T41/E41 Series regenerative turbine pumps meet low net positive
suction head (NPSH) requirements without efficiency loss. This is
achieved by keeping the inlet fluid velocity low and then gently
accelerating to passageway velocities. Special ramps are responsible
for an almost shockless fluid entry into the impeller blades and
account for the high inlet efficiency in the T41/E41 Series pumps.
Similar to the T31 Series, the E41 takes advantage of our custom
manufactured dual face D3 motors that incorporate a 304 stainless
steel shaft and heavy-duty bearing. The stainless steel shaft eliminates
the necessity of a shaft sleeve, thereby reducing the parts count
and simplifying maintenance and servicing procedures. All D3 motors
also feature a two-pole 50//60Hz rating, as well as CE Mark approval
useful for OEM’s with worldwide customers. The three-phase
versions of the D3 motors feature a compact TEFC enclosure and a
range from 1/3 to 3HP. The single phase D3 motors have an ODP enclosure
and a range from 1/3 to 2HP. The E41 is available in horizontal
close-coupled and vertical flange mounted configurations only. Please
see Design Features for more detailed information on both T41 and
E41 motor options.
For a copy of the T41•E41 Manual and T41•E41 Parts List, go to
the Product Support Page.
Download a printable version of the T41
• E41 Product Bulletin in .pdf format.
Download a printable Spanish version of the T41
• E41含羞草免费版在线,亚洲日韩未满18岁网站,亚洲成aV人在线视 Product Bulletin in .pdf format.
Download a printable version of the T41
• E41 Catalog Pages (curves and dimensions) in .pdf format.
Download a printable, metric version of the T41 • E41
Catalog Pages (curves and dimensions) in .pdf format.
If you do not have the Adobe Acrobat Reader, click here
to download the most recent version from Adobe.