Plate Heat Exchanger · Heat Exchangers
AlfaQ-52-MAX by Alfa Laval S.p.A. is a compact heat exchanger for transfer of heat between two separate fluid circuits. Equipment of this class is normally installed in machinery or process spaces where cooling, heating or heat recovery must be achieved without mixing the media. The exact internal plate construction, materials and port arrangement for this model must be confirmed from the manufacturer documentation rather than inferred from the designation alone. Operational performance is governed by clean heat-transfer surfaces, correct flow distribution and adequate temperature difference across the two circuits. For marine use, isolation, venting, draining and access for inspection are as important as the thermal duty because leakage can contaminate a second system. The MAX suffix identifies the listed configuration within the AlfaQ-52 family; refer to the manufacturer documentation for the exact figure and the differences from other AlfaQ-52 variants.
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What our service work and the manufacturer documentation say about keeping this model running.
Trend inlet/outlet temperatures and pressure drop, inspect all external joints and support points, and clean the heat-transfer surfaces when performance deteriorates. Verify vent and drain arrangements are clear and that isolation valves do not pass when the unit is opened. Any pressure test, opening dimension or internal inspection should follow the maker's procedure; refer to the manufacturer documentation for the exact figure. At class survey, focus on pressure-boundary integrity, signs of cross-contamination and repair traceability.
Carry sealing elements and connection gaskets specific to the installed unit, together with any manufacturer-recommended service hardware. For a critical cooler or heater, consider an approved spare plate or exchange unit according to the vessel's redundancy.
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