Coldflow
Marine Refrigeration

Saltwater-tough refrigeration

Water-cooled condensers, low-temp to med-temp, 3 HP to 15 ton. Custom marine refrigeration for yachts, fishing fleets and commercial vessels.

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How marine refrigeration works

Refrigeration systems include five core components: a compressor, heat-exchanger pipes outside the unit (the condenser), an expansion valve, heat-exchanger pipes inside the cold box (the evaporator), and a non-toxic refrigerant. A thermostat manages the whole cycle.

Inside this closed system the refrigerant converts from gas to liquid and back, releasing and absorbing heat. The compressor pressurizes the refrigerant; the hot gas travels through copper condenser tubes where it condenses and releases heat — aided by a fan, a seawater cooling system for tropical climates, or both.

The expansion valve drops the pressure, turning the refrigerant back into a gas that absorbs heat as it travels through the evaporator coil inside your refrigerated compartment. The vacuum from the compressor pulls the cold gas back around and the cycle repeats.

Marine refrigeration

Built for the sea

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