What is the largest-sized contaminant that SpiralTrac can handle?
• The radial clearance between the shaft and inside diameter of the SpiralTrac is 0.020″-0.040″ / 0.51mm -1.02mm. Upon flooding of the pump, contaminants larger than this size cannot enter the seal cavity. Contaminants this size or smaller that do enter the seal cavity are easily removed by SpiralTrac. Should a larger piece of contaminant enter the seal cavity through the flush port, the SpiralTrac will attempt to remove it. This larger contaminant will be crushed to a smaller size between the shaft and SpiralTrac, resulting in complete removal through the exit groove.
