The Wärtsilä Airguard and Sternguard seal ranges are suitable options for electric pod and thruster seal applications. The operating environment will influence the choice of sealing solution. These include abrasives, shaft movements and serviceability requirements. The Wärtsilä Sternguard is an oil lubricated outboard lip type sealing solution and can be supplied either partially split or fully split. The Wärtsilä Airguard seal is an oil lubricated outboard lip type sealing solution. The seal works with compressed air, which is applied to the void space between the seal rings to reduce the stress and wear.
