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N211M Flexible Impeller Pumps

N211M Models feature stainless steel, 303 grade shafts and bronze pump construction which helps ensure corrosion resistance. Ball bearings and mechanical seals are found on upper tier models while others employ bronze or carbon bearings and lip type seals. Optional nitrile impellers are available while neoprene rubber is standard. Flexible blades on the periphery of the impeller provide the pumping action. While the impeller rotates the liquid between the blades is continuously squeezed out into the discharge port by a machined in cam located inside the pump chamber.