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This section provides an overview for seawater cooling systems as well as their applications and principles. Also, please take a look at the list of 4 seawater cooling system manufacturers and their company rankings. Here are the top-ranked seawater cooling system companies as of August, 2025: 1.TRAC Ecological, 2.ORION MACHINERY Co., LTD., 3.VIRIDIS Engineering Sdn Bhd.
Table of Contents
A seawater cooling system is a device installed on board fishing vessels for inshore and coastal fishing to cool the seawater in the fish holds or the fish tank without using ice.
It is an indispensable device for fishing vessels to keep the fish fresh, especially during the hot summer season. The freshness of the fish is maintained because the fish can be kept alive in the holds.
The device can be installed relatively easily by connecting the power source directly from the fishing boat's engine, and the size of the device itself allows it to be installed on a fishing boat without taking up much space.
Directly cooling the seawater in the fish holds makes it possible to keep the freshness of the fish caught and is a very important device for fishing vessels because it leads to increased profits in the inshore fishing industry.
Before the introduction of this device, ice was used to keep fish fresh, but the work of carrying and breaking ice was physically demanding on fishermen, and the fish were sometimes not marketable due to ice burns or damage caused by ice.
The seawater cooling system eliminates these problems in the fishing industry and allows the fish to be delivered to the market fresh from the catch.
The seawater cooling system directly cools seawater in fish holds or fish tanks using a heat exchanger and refrigerant without using ice.
The seawater in the fish holds is pumped up by a circulation pump in the seawater cooling system, cooled by a heat exchanger, and returned to the fish holds to produce cooling water.
By repeating this process, it is possible to lower the water temperature to a level that keeps the fish fresh, and the seawater temperature can be lowered from room temperature to nearly 0 degrees Celsius.
The circulating system also allows the seawater to be cooled evenly and evenly.
The heat exchangers in most seawater cooling systems are made of titanium. Titanium has strong thermal conductivity (high cooling efficiency) among metals and is not easily corroded by seawater, so harmful metal ions do not dissolve into seawater.
This makes it possible to cool seawater efficiently and keep fish fresh without contaminating it with dissolved metal ions.
*Including some distributors, etc.
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ORION Machinery Co., LTD was founded in Nagano, Japan in 1946. ORION’s product line features precision air processors, vacuum pumps, chillers, dehumidifiers, air dryers, temperature test chambers, infrared and space heaters, temperature regulators, and automated milking equipment for dairy farming.
Alfa Laval Corporate AB was founded in 1883 and headquartered in Lund, Sweden. Alfa Laval serves energy, utilities, home, personal care, food, dairy, beverage, marine, transportation, pharmaceutical, biotech, water, and wastewater industries. Alfa Laval provides heat transfer, separation, and fluid handling products and solutions worldwide. Alfa Laval operates in three divisions: Energy, Food & Water, and Marine. Alfa Laval offers oil & gas-fired steam and composite steam boilers, exhaust gas economizer, and ballast water treatment systems, and exhaust gas cleaning products. Alfa Laval also provides sensing and control, cleaning validation, condition monitoring, agitators, tank, powder mixers, fittings, and tubes, as well as wall mounted cleaning nozzles, rotary jet and heads; and tank accessories and covers.
Ranking as of August 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | TRAC Ecological |
30.4%
|
| 2 | ORION MACHINERY Co., LTD. |
26.8%
|
| 3 | VIRIDIS Engineering Sdn Bhd |
21.4%
|
| 4 | Alfa Laval Corporate AB |
21.4%
|
Derivation Method
The ranking is calculated based on the click share within the seawater cooling system page as of August 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
1 | 33.3% |
|
Japan
|
1 | 33.3% |
|
Malaysia
|
1 | 33.3% |
98 products found
98 products
Degree Co., Ltd.
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Titanium heat exchangers show excellent corrosion resistance to seawater. Please feel free to contact us as we have various types.
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