Tag: EALs

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DNV GL completes study on the properties of EALs for stern tube applications

DNV GL, together with marine insurers The Swedish Club, Norwegian Hull Club, Skuld and Gard have completed a study of the properties of environmentally acceptable lubricants (EALs) for stern tube applications, in response to the growing number of stern tube bearing failures recently. In fact, DNV GL sponsored lab tests demonstrating that EALs behave differently than traditional mineral oils under transient pressure and temperature conditions. 

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EALs performance leads to upgrade to shaft alignment rules

During Nor-Shipping 2019, DNV GL informed that it will update its shaft alignment design rules to differentiate between Environmentally Acceptable Lubricants (EALs) and mineral oils in stern tubes. The update, will apply from 1 July 2019, and is based on the phase 1 findings from the joint development project DNV GL has been operating along with the Swedish Club, Norwegian Hull Club, Gard and Skuld.

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Environmentally Acceptable Lubricants receive approval from Italian shipbuilder

 Mobil SHC Aware H 46 and Mobil SHC Aware H 68, part of ExxonMobil Marine Fuels and Lubricants’ range of Environmentally Acceptable Lubricants (EAL), have received approval from Fincantieri Marine System Division, the marine equipment manufacturer of the Italian shipbuilder Fincantieri.An industry standard ASTM test showed that Mobil SHC Aware H 46 and Mobil SHC Aware H 68 qualify as low maintenance oils, providing up to three times the operational life of a normal maintenance oil.Iain White, ExxonMobil’s Global Marketing Manager for Marine Fuels and Lubricants, said: “This latest OEM approval underlines how our Mobil SHC Aware H Series can protect machinery against wear and reduce maintenance while complying with environmental regulations.”Mobil SHC Aware H Series of synthetic hydraulic fluids, part of the Mobil SHC Aware product line, have been formulated to meet the requirements for environmentally acceptable lubricants outlined in the U.S. Environmental Protection Agency (EPA) 2013 Vessel General Permit (VGP).Designed for hydraulic systems operating under high loads and high pressures, the Mobil SHC Aware H Series offers the potential to extend equipment life and reduce maintenance downtime when compared with other Hydraulic Environmental Ester Synthetic (HEES) alternatives.The hydraulic oils are suitable for a range of applications including marine controllable pitch ...

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Thordon Bearings secures new Alaska ferry contract

  Thordon Bearings has received an order to supply its COMPAC system to two Alaska Ferry newbuilds under construction at the Vigor Industrial shipyard in Ketchikan, Alaska. The Canada-based company, the world’s leading supplier of seawater-lubricated propeller shaft bearings, will deliver the Environmentally Acceptable Lubricant (EAL)-compliant COMPAC propeller shaft bearing system for shaft diameters of 267mm. The twin-screw, 280ft long Alaska-class ferries will each have capacity to carry 300 passengers and 53 standard vehicles and feature fully enclosed vehicle decks with bow and stern doors for quicker loading/unloading. Thordon Bearings’ Director of Marketing and Customer Service, Craig Carter, said: “These vessels, thought to be the first vessels built in Alaska for use in Alaska, are a significant step forward for the Vigor Industrial shipyard and we are delighted to be associated with this new class of arctic ferry. The COMPAC propeller shaft bearings will ensure these vessels can operate with zero risk of any oil discharges into a very ecologically sensitive area.” Thordon Bearings will deliver the COMPAC system for the first vessel in the series later this year with the second following in early 2016. Both vessels are due to be delivered to Alaska Marine Highway System, part of ...

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Wartsila offers packages compatible with EALs in US

  Wärtsilä has developed propulsion systems that are capable of operating with Environmentally Acceptable Lubricants (EALs) and comply with the US Vessel General Permit 2013 (VGP-2013). Wärtsilä is among the first marine propulsion solutions suppliers to achieve this compliance for complete propulsion packages. For vessels operating in US waters, VGP-2013 mandates the use of EALs in all oil-to-sea interfaces unless technically unfeasible. VGP-2013 was issued by the US Environmental Protection Agency (EPA) and is applicable to all vessels sailing in US coastal waters. Wärtsilä began work on developing an effective solution in 2013, working together with numerous EAL suppliers. EALs have since been extensively tested with Wärtsilä steerable thrusters at the Wärtsilä Propulsion Test Centre in Tuusula, Finland. This testing has provided Wärtsilä with a deep technical understanding of the EAL impact on marine propulsion systems. To make the company’s propulsion systems EAL compatible, product modifications have been made to various elements, including the seals, hydraulics and oil monitoring systems. Wärtsilä has acquired detailed specification knowledge of adapting full hydraulic systems to make them EAL compatible, as well as comprehensive experience of the impact of EAL compliance on seals. Wärtsilä has also obtained full intellectual property rights on the newly ...

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