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Better quality seals
De Waal has developed and produces the most popular type of propeller shaft seal, the Stuwa© prop shaft seal. Available for interior or exterior mounting, it is guaranteed to be leakproof and is reasonably priced.
Our unique system keeps water outside and lubricant inside. It represents a great and affordable solution for any kind of vessel. You will be contributing to a sustainable environment and at the same time the seals will help you reduce operating costs.
Looking for solutions
Werkendam is where the development of made-to-measure prop shaft seals started, as long ago as the late 1970s. Long before environmental considerations began to play a role in the shipping industry, De Waal was busy testing and producing prop shaft seals that were affordable and highly effective.
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Smart dimensioning
Our major strength is that systems are made to fit any existing propeller shaft diameter. This is unique for the market! For newly built ships we provide our own range op optimised sizes. We can provide the solution for any situation, whether you need a fully enclosed drive shaft system, or just a single exterior or interior seal. Irrespective of whether it concerns oil, grease or water lubrication, a Stuwa© seal will fit any vessel.
Please note
Government regulations stipulate that all existing inland shipping vessels must have clean prop shaft systems. Zero leakage is the standard. All our seals carry a Green Award certificate, the foremost environmental quality label in the shipping industry. As an added bonus, there are major benefits for you if multiple parts of your ship have been certified.