Tuesday, March 26, 2019
Maritime Propulsion

June 24, 2014

LR Certify Wärtsilä Prop Shaft Seals EPA Compliant

Wärtsilä Airguard prop seal: Image Wärtsilä

Wärtsilä says that its environmental Airguard and Oceanguard propeller shaft sealing seal systems are the first in industry to gain recognition by Lloyd's Register for meeting EPA requirements.

In March 2014, Wärtsilä announced that its Wärtsilä Airguard and Wärtsilä Oceanguard seal products can continue to utilise mineral oil since they meet the guidelines set out in the US Environmental Protection Agency's 2013 revised Vessel General Permit.

As the Wärtsilä Airguard and Wärtsilä Oceanguard seals meet the defined regulatory prerequisites, owners and operators of commercial vessels of over 79ft (24 metres), sailing within US waters with either of these systems installed are not required to change to an Environmentally Acceptable Lubricant (EAL).

The Lloyds' Register's service level recognition, received on 22 May 2014, confirms that Wärtsilä's Airguard and Oceanguard are well suited for their intended purpose and meet the US Environmental Protection Agency's 2013 revised Vessel General Permit (VGP) requirements of Part 2.2.9 under normal operating conditions.

Prior to the approval, Lloyd's Register conducted a desktop review where the product details were reviewed to establish whether the seal presents an "oil to sea" interface in normal operation. The results showed that the Wärtsilä Airguard and Oceanguard propeller shaft seals are able to be used with mineral oils and a range of environmentally acceptable lubricants as defined within the US EPA VGP 2013.

Furthermore, it was stated that the Wärtsilä Airguard and Oceanguard propeller shaft seals are unlikely to leak mineral oils into the sea during normal operating conditions.

U.S. Environmental Protection AgencyEnvironmental Protection Agencymineral oil