Non-metallic pumps are finding growing application in the metal finishing industry. As opposed to metallic construction materials, engineering plastics offer virtually universal chemical resistance. Thanks to intensive hydraulic research efforts in recent years, design-inherent weaknesses such as low pump efficiencies have been overcome. If service temperature limitations are observed and proper protection against dry running is provided non-metallic pumps are the ideal solution for pumping aggressive and abrasive media.
In metal finishing applications, the seal design is all-decisive for reliable pump operation. The majority of the fluids pumped in such applications carry solids loads, are abrasive and tend to crystallize. Taken together, these factors make exacting demands on the seal design.
Typical shaft seals used in such service environments are single or double mechanical seals.
MUNSCH pumps have demonstrated reliable operation in the following applications:
Carbon steel and stainless steel pickling lines
Galvanizing plants
Pickle liquor regeneration systems
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