Shaft Seal · Shaft Line Equipment
The Wärtsilä Enviroguard 200 mm is a compact lip‑type shaft seal that prevents water ingress and oil egress on propeller shafts up to 200 mm diameter, offering a low‑maintenance solution for medium‑speed engine installations.
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What our service work and the manufacturer documentation say about keeping this model running.
Inspect leakage, seal-oil or header-tank behaviour, shaft-liner condition where accessible, piping, vents and pressure-balancing arrangements. Check for signs of seawater contamination in stern-tube oil and for external oil loss. Review leakage trends rather than relying only on a single observation. Refer to the manufacturer documentation for the exact figure for pressure balance, liner wear and seal replacement criteria.
Carry complete seal-ring or lip sets, O-rings, gaskets, approved seal lubricants and liner-repair or emergency sealing provisions where specified by the vessel support plan.
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