In processing specialty chemicals, pharmaceuticals, and other products that require high purity, contamination due to corrosion is totally avoided. In fact QVF NGK ceramics provide virtually the same corrosion resistance as QVF's borosilicate glass. This results in a longer and more reliable service life. Maintenance Maintenance, when required, is greatly simplified and can be accomplished by one person. NGK pumps utilize a rear pullout impeller which is removed without disturbing the suction or discharge piping.
Costly downtime is minimized and maintenance personnel are able to save substantial time.
Longer Seal Life Precision grinding of the ceramic shaft sleeve to extremely close tolerances allows the mechanical seal to form a tight static seal. This firm seal guards against leakage and abrasion of the shaft and assures that QVF NGK pumps continue running with a minimum of maintenance. Careful machining and balancing of the impeller virtually eliminates vibration, further increasing seal life. The Inside Story Protected by a cast iron armor, the casing manufactured of NGK Chemical Ceramic offers freedom from corrosion and erosion , while glazed interior surface reduces friction loss. The bearing frame is manufactured of heavy cast iron.