We Provide superior quality Johnson Pump Seal Johnson Pump Seal which are mostly used in industrial Applicaation. They are single acting. It has a conical spring in it of 73 type. It also has a single helical coil spring of 77 type. Seal Type: Wave-spring 'O'-Ring mounted for Johnson® TL series pumps. Johnson® centrifugal series pump seal-Single seal, unbalanced, independent of direction of rotation with Elastomer Secondary seal face Johnson® Positive Displacement Pump seal