Wärtsilä 10 Year Airguard seal

Wärtsilä 10-Years Airguard seal Building on proven Wärtsilä Airguard performance, the 10-Years Airguard Seal gives you a decade of operation without needing to replace seal rings. This leads to significant operational cost savings over the lifetime of the vessel – up to 59% compared to conventional seals. Wärtsilä Airguard works with compressed air, which is applied to the void space between the seal rings Constant flow of air pressure into the void space is set higher than the seawater pressure, resulting in a small amount of air forced out into the seawater Seawater or oil that infiltrates the void space is automatically drained inboard, preventing oil leaking outboard or seawater entering the stern tube Significant operational cost savings over the lifetime of the vessel