How it works
The chamber between the two oil-repellent lip seals is pressurised by the stern tube header tank. This way the pressure on both sides of the fourth lip seal remains equal. By closing-off the oil supply to this chamber, this fourth lip seal can be used as a new oil-repellent lip seal. In case of leakage, docking and maintenance can be postponed by putting this fourth seal to work.
The standard Supreme SeaGuard execution consists of bronze housing parts, a chrome steel liner, two oil-repellent and two water-repellent NBR lip seals.
Optional: Supreme SeaGuard Ventus®
Did you know that you can also combine the Supreme SeaGuard and Supreme Ventus? The Supreme SeaGuard Ventus is an air-type seal. The Supreme SGV seal consists of four lip seals which are clamped in housing parts. This seal ensures zero-emissons of oil, zero inward water leakage and guarantees optimum service life. This promise is backed by verification from DNV GL: the Supreme SeaGuard Ventus may be used with mineral oil in waters covered by VGP regulations. In addition, Lagersmit offers a five-year warranty (ask us for details). Furthermore, the user is able to monitor the condition of the seal at any given moment. The condition monitoring makes your propulsion system even more reliable.
How it works?
It works the same as the Supreme Ventus, except there are four lip seals. The Supreme Ventus uses an air system to separate oil and water and regulate pressures inside the shaft seal and stern tube. Any fluids that enter the shaft seal are drained into an internal drain tank. Different than most systems, the Supreme Ventus works without interventions of sensors and varying air-flows and it is fully self-regulatory.
Would you like to know more about the possible applications? Contact me for a quote or for more information!
“Steerprop relies on Supreme TS4 thruster seals.”
“The Supreme seals is one of the best shaft seals available in the market. We have a good cooperation with Lagersmit. The team is easy to work with and you always get a fast response when parts and technical support are needed.”
“Our motivation to choose Supreme is obvious. Improvement in design for long-term trouble-free operations.”