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The latest MET-MB turbocharger series by Mitsubishi Heavy Industries Marine Machinery & Engine Co. Ltd. (MHI-MME) has been officially approved to be installed in the Wärtsilä X-DF engine series - the dual-fuel engine designed and developed by Winterthur Gas & Diesel Ltd. (WinGD).

Following approval, MET turbochargers are now available to be installed in all of WinGD's large low-speed marine main engines, including the Wärtsilä X-DF two-stroke engine.

The verification test was carried out at the premises of Diesel United, Ltd. (DU) with the Wärtsilä W6X72DF engine, which was developled by WinGD and built in cooperation with Diesel United.

The W6X72DF engine was installed with two sets of MET60MB turbochargers and was tested in both diesel and gas mode in the presence of WinGD's engineers. MHI-MME states that, following the verification tests, "it was proved that the MET turbocharger performance has enough capability to satisfy the WinGD's requirement for Wärtsilä X-DF engines".

The MET turbocharger has been approved to be used in the following Wärtsilä engines: X-DF, RTflex50DF, X52DF, X62DF, X72DF, X82DF and X92DF. As a result, X-DF engines with MET turbochargers can now be delivered by all South Korean, Chinese and Japanese X-DF engine licensees.

The MET turbocharger is estimated to have the largest share of the low-speed marine main engine market. According to MHI-MME, "MET Turbochargers are the global standard exhaust gas turbochargers for use in large marine and stationary diesel engines".

Headquartered in Switzerland, WinGD is a producer of two-stroke low-speed gas and diesel engines for the maritime industry. It is jointly owned by China State Shipbuilding Corporation (CSSC) (70%) and Wärtsilä (30%).