When you torque a bolt on a gearbox, a plain washer simply distributes load—it doesn’t prevent leaks. That’s where Sealing Washers shine. Embedded with rubber and designed for compression, they seal around the bolt shaft and mating surface—even under thermal cycling. In gearbox maintenance, replacing drain plug washers with properly specified Sealing Washers has cut flange seepage by over 90% in my deployments.
But there’s more. In one plant, a leaking hydraulic valve caused contamination in a pneumatic control room. Swapping in Sealing Washers fixed it—but we also upgraded materials (to Viton-grade) and added torque documentation to the PM logs. Suddenly, leak-related stoppages dropped, and audits passed with ease. The moral? A quality Sealing Washers paired with material verification and installation consistency is a reliability multiplier.
