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Steep Head/Capacity Curve Pumping capacity varies only slightly as pressure changes. Steep pressure characteristic overcomes temporary line resistances.

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 sealing.

Shaft Standard shaft is of high strength 416 stainless steel.

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 size.

Non-Cavitating M50 • L50 Series pumps may be operated under adverse inlet conditions without audible or measurable cavitation.

Low NPSH New inlet designs along with L50 Series inducer style pumps provide superior fluid handling ability with low inlet head conditions.

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


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