MarShip’s EDI system

With this achievement in mind, Maritime Journal thought it was high time we found out a little bit more about this young, but high-achieving company. MarShip was set up 4 years ago by Peter Weide and developed into a limited company 3 years ago. Based in Tetbury Gloucestershire, it specialises in cleaning the essentials used by marine engines: oil, fuel & Air. Although the company only currently employs one other person, it’s looking to grow, and customers already include Carnival Cruise Lines, international shipping companies and small owner/ operator vessels such as workboats & leisure boats.

EDI System
The UK-manufactured EDI Lub Oil Purifier is a clear, two-stage process. Although the first stage of the process is through a traditional one micron absolute filter, it is in the second stage that a new-to-the-industry process is carried out. In this stage the oil flows over a patented heated plate where water and gaseous acids from combustion and fuel dilution is evaporated, ensuring TBN and viscosity is maintained. With the additional removal of these liquid and gaseous contaminants, oil life can be considerably increased over traditional methods that only remove the suspended contaminates. The company says the environmental and monetary savings are substantial.

The purifier was specifically developed to extend oil life in engines or closed lubrication systems such as Hydraulic systems, gearboxes, Thrusters, Azimuths, stern tubes etc. Removing all water and acid including diesel fuel dilution. Through a clear two stage process of filtration and evaporation, the EDI cleans oil to better than NAS 3-4 (New Oil is typically 6-8) by removing contaminants and maintaining oil to below 1 micron.

Diesel Engines
Connected as a bypass to the lube oil system the unit effectively increases oil drain periods by up to 4 times by ensuring oil is cleaned to 1 micron and evaporating gasses such as sulphur dioxide and trioxide that lead to a reduction in TBN. Any residual acids are combined with and held by the cotton filter. It will maintain the oil in ‘as new’ condition easily extending oil drain periods by many hours and Peter Weide claims it usually gives a return on investment in 6 months.

Closed circuit oil systems, such as hydraulic systems, gearboxes, stern tubes, thrusters, and azimuth drives can be connected directly to the system through a pressure reducing valve whilst the machinery is operating. This ensures contaminants are treated immediately before they can do any damage.

By Jake Frith