Wilfley Low NPSH Available Evaporator Transfer Application Existing pump with mechanical seal was experiencing 2-4 seal failures a year ($1,200-$1,500/Seal) due to cavitation. Wilfley Dynamic Seal, with no rubbing surfaces, eliminates seal face damage, as the result of cavitation without sustaining damage to seals and premature downtime. No seal water required and 19 months continuous operation achieved.

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