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Stone Marine adds two new EcoSeals to line

Written by Nick Blenkey
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EcoSeal Thruster unit

SEPTEMBER 12, 2016 — Inverkeithing, U.K., headquartered Stone Marine Seals has added two new seals to its EcoSeal line.

EcoSeals have a double barrier design that makes it virtually impossible for any oil pollution to take place and are fully compatible with Bio-Oils for areas of the world where these are a legal requirement.

The EcoSeal, which is a main shaft seal, is now being joined by two additional seals designed specifically for the thruster and Azipod markets, the EcoSeal T and EcoSeal TS.

The new seals have the same benefits as the original EcoSeal and will be of interest both to vessel owners having new ships built, or for those fitting replacement units to existing vessels.

The EcoSeal TS is a split version of the EcoSeal T that provides an easy retrofitting solution when replacing the more common lip type seals in use today.

The T and TS can be fitted into very tight spaces and retrofitting can be carried out utilizing the old seals liners — a significant cost saver.

All EcoSeals are designed to provide a long and trouble free service life.

Capable of operating at depths of up to 50 meters, high temperatures and at high speeds, the design compensates for any thermal expansion, hydraulic pumping or axial movement of the shaft to which they are fitted.

Their design allows EcoSeals to be fitted to a wide mix of ship types, from shallow draft dredges and coastal vessels, to very deep draft heavy lift ships and semi-submersibles.

Exploded view

EcoSeal exploaded view. 700

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