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Steep Head/Capacity Curve Pumping capacity varies only slightly as
pressure changes. Steep pressure characteristic overcomes temporary
Self-Adjusting Impeller M50 • L50 impellers utilize
balancing holes to promote hydraulic self centering, which
eliminates the need for external adjustment. The free sliding
impeller exerts no thrust load on the bearings, thereby extending
service life. Self-centering is equally effective whether mounted
in the horizontal or vertical position.
Mechanical Seals Bronze fitted pumps have Buna N elastomers,
carbon washer, ceramic seat, and stainless steel metal parts.
Optional seats and materials are available.
1000 PSI Case Working Pressure Rigid stucture is designed for
maximum casing strength.
100% Tested Every pump is fully tested to verify performance
prior to shipment.
Volatile Fluid Handling The turbine impeller handles vapors up
to 20% by volume, minimizing the possibility of vapor lock.
“O”Ring Gaskets “O”ring gaskets are used
throughout the M50 • L50 Series pumps to assure positive
Shaft Standard shaft is of high strength 416 stainless
Motors Standard 56C face motors are utilized up to 3 Hp. 5 Hp
and above are TEFC on vertical base mount units.
Best Efficiency New pump designs optimize efficiency for each
Non-Cavitating M50 • L50 Series pumps may be operated under
adverse inlet conditions without audible or measurable
Low NPSH New inlet designs along with L50 Series inducer style
pumps provide superior fluid handling ability with low inlet head
Balanced Loads By staggering each stage’s discharge by
180°, the radial loads on the bearings are effectively
balanced, and shaft deflection is thereby negligible.
Interstage Bushings Close tolerance self-lubricating carbon
bearings between each stage limit interstage leakage