• Equipment selection

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  • Safety and life-support systems

    Arctic model equipment

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    Wall panels, carpeting

  • Trawling stations

    Ladders, ropes, anchors

    Refrigerator equipment

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  • Drilling equipment

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  • Logistics

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  • Repair dock selection

    Design works

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    Ship survey

Circulating water treatment

Chemical free water treatment for engine cooling water and chilled water/HVAC-systems.

To preserve the high efficiency of water based closed loop system, eg. engine cooling system, it is important to maintain a high water quality. Poor water quality will degenerate the system by corrosion, scaling and bacterial growth.

The EnwaMatic® Engine uses a side stream of the closed loop, and treats the water through a special granulate bed to prevent bacterial growth, scaling and corrosion.

The equipment which quickly pays back itself.


• Anticorrosive protection

• Water parameters control

• Ecological control for prevention of bacterial growth

• Removal of air and gas from the system

• Removal of sediment and impurities.

• Media filtration up to < 5 microns


• Ecologically clean technology

• Reduces power consumption

• Increases piping life cycle

• Reduces operational costs

• More profitable alternative in relation to chemical treatment of water

• Uninterrupted filtration, autonomous water treatment work

• Economically optimal solution during system upgrade process


Filter casing of stainless steel is isolated by thermo-foam and concluded in rigid plastic external casing. The design includes two stages that fulfil the function of handles for lifting, for easier maintenance and installation. Fabrication holes in the lower part are designed to install the unit of the foundation, frame or deck. The EnwaMatic® systems are widely used on passenger, transport vessels, ice-breakers, floating hotels, derricks, yachts and other objects of the sea industry.

MWT – economically profitable, reliable, and environmentally friendly alternative to chemical dispensing and chemical treatment of water.

EnwaMatic® for maritime applications – technical information


Volume of system, m³

Power, kW

Overall dimensions, HxWxD, mm

Weight empty (kg), dry
MWT F1 0 - 7 25 - 30 1500х550х550


MWT F2 0 - 20 25 - 30 1700х600х600


MWT F3 0 - 40 25 - 30 2000х600х600



• Control panel for installation on a wall, protection level IP 54.

• Programmable input for working operations and system cleaning.

• Power supply 220 V, one phase, output 24 V.

• Visual alarm signal, additional signal is transmitted to the switchboard.

• Alarm check system function.

• Guide to change and control of functions.


• The monitoring system in real time of the pH level in water with the monitor and alarm function;

• Double Blok for prevention of leakage of the fourth category;

• The alarm MS module with connections.

The EnwaMatic® system has been tested and is approved by DNV


Water samples EnwaMatic® technology

from 1st to the 21st day, from left to right

EnwaMatic® Maritime technology received approval from Wärtsilä manufacturers.

Color Line ferry.jpg

Before EnwaMatic® Maritime cooling water treatment system was approved, tests have been made during several years; final tests were approved after the engine worked for 16378 hours. As a result of intensive testing period the ship owner Color Line, that owns several cruise ferries made a decision to replace all closed circular water systems of engines and air conditioning and ventilation systems on all ships into EnwaMatic® Maritime system.

However, recently Wärtsilä are using the EnwaMatic® technology in their own system called WWCU (Wärtzilä Water Condition Unit). The “hart” of the system is the EnwaMatic® technology but Wärtsilä also include a larger scope based on their experience and knowledge making this a complete Wärtsilä system delivery (Turn Key).

At the moment, “EnwaMatic technology is utilized in the Wärtsilä Water Conditioning Unit (WWCU), which is the only accepted cooling water treatment system for Wärtsilä 4-stroke engines.”

The WWCU can be used in both Marine and Power Plant applications with the following product types:

Wärtsilä 20, Wärtsilä 26, Wärtsilä Vasa 32, Wärtsilä 32, Wärtsilä 38, Wärtsilä 46, Wärtsilä 46F, Wärtsilä 64, Wärtsilä 20DF, Wärtsilä 32DF, Wärtsilä 34DF, Wärtsilä 50DF, Wärtsilä 34SG, Wärtsilä 50SG, Sulzer Z40, Sulzer ZA40 and Sulzer ZA40S.

To purchase this system for Wärtsilä 4-stroke engines only, contact the manufacturer Wärtsilä Finland, Services.

WÄRTSILÄ approval (original text)

Reference List EnwaMatic® Maritime

We supply spare parts to all the above mentioned equipment in accordance with catalogue number provided by the manufacturer.

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