Fishing Vessel Refrigeration

Fishing Vessel Refrigeration

Refrigeration that has to freeze the catch where it is landed, on a moving deck, powered by the vessel and exposed to salt every hour it operates.

  • 1,053products across this application
  • 417verified manufacturers
  • 5equipment groups

WhatChilling at sea, not in port

A fishing vessel has to bring the catch down to holding temperature immediately, because quality is decided in the first hours after landing on deck. Systems fall into two families: refrigerated sea water, which chills catch rapidly in tanks and suits pelagic species landed in bulk, and plate or blast freezing in the hold for vessels that stay out long enough to freeze rather than chill.

WhoWho buys it

Fishing fleet owners and skippers, refit and repair yards, marine refrigeration installers, and equipment dealers serving fishing ports.

WhyWhy the environment is the whole problem

The thermodynamics are ordinary; the conditions are not. Salt-laden air corrodes coils and enclosures faster than any land installation, continuous vibration and hull flexing fatigue rigid pipework and destroy bearings rated for static duty, and the electrical supply is the vessel’s own generator, whose voltage and frequency wander as the load changes. Equipment designed for a shoreside cold store fails on all three counts.

HowSpecifying for a working boat

Start with corrosion: coated coils, non-ferrous or marine-grade hardware, sealed enclosures. Handle vibration with anti-vibration mounts and flexible connections at every rigid termination — this is the difference between a refrigerant leak in the first season and a system that lasts. Match the electrical supply as it actually is, including generator behaviour under load. And design for service at sea by one person with hand tools, because that is who will be fixing it.

Equipment this application needs

Condensing Units RSW & hold packs Condensing Units429 Marine-protected packs, often seawater-cooled, mounted on anti-vibration bases. Heat Exchangers Seawater cooling Heat Exchangers364 Titanium or cupro-nickel — stainless plates pit and fail in flowing seawater. Evaporators Hold & tank cooling Evaporators74 Coated coils that survive salt exposure and take hull vibration without fatiguing. Freezing Equipment Plate & blast freezing Freezing Equipment66 Freezing at sea for vessels on longer trips — quality is decided in the first hours. Refrigeration & Heat Exchange Parts Onboard spares Refrigeration & Heat Exchange Parts120 Valves, seals and controls carried aboard; a failure at sea cannot wait for a delivery.

What to check before you order

Corrosion Resistant 266
Continuous salt exposure with no shelter. Not an upgrade in this scenario.
Stainless Steel 2,107
Grade 316 for exposed hardware; 304 corrodes within a season at sea.
24V DC 115
Vessel supply — native DC avoids putting an inverter in the reliability chain.
IP55 / IP68 308
Sealed against spray, washdown and green water on deck.
R404A Refrigerant 455
Serviceable in fishing ports worldwide, which matters more at sea than efficiency.

Products for this application

Questions buyers ask

RSW or plate freezing for a fishing vessel?
It follows the fishery. Refrigerated sea water chills bulk pelagic catch very quickly and suits vessels landing within days. Plate or blast freezing suits vessels staying out longer, where the catch must be frozen rather than chilled to survive the trip. Some vessels carry both, using RSW to chill on landing and freezing for storage.
Why is seawater heat exchanger material so important?
Because flowing seawater pits stainless steel, including 316, particularly where the vessel sits idle and water stagnates in the exchanger. Titanium or cupro-nickel resist that. This is the one component where paying for material up front is unambiguously cheaper than replacing it, often within the first two seasons.
Can shoreside refrigeration equipment be marinised?
Only to a limited extent. Coatings and enclosure protection can be added, but vibration resistance, mounting and the ability to run on a generator supply are design characteristics rather than accessories. Equipment built for marine service costs more and lasts several times longer in this environment.

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