"> Sondex Sondex S121
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Sondex

Sondex S121

Sondex Sondex S121 is a shipboard unit in the Heat Exchangers group, classified in the source as Plate Heat Exchanger. It is normally installed in engine-room cooling, heating, fuel, lube-oil, HVAC or freshwater circuits. Its primary duty is to transfer heat between two fluid circuits without intentionally mixing them. In service it interfaces with piping, isolation valves, pumps, temperature/pressure sensors and the connected cooling or heating systems. The source record states capacity 150.0 m² surface for this exact variant; this information is retained unchanged and distinguishes it from neighboring entries in the same product family. For exact limits, settings, test values and approved maintenance criteria, refer to the manufacturer documentation for the exact figure.

150.0 m² surface
Capacity

Components & Design

Component data being added…

Technical Data

exchanger type plate
surface area m2 150.0
max pressure bar 25

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Common failures & inspection points

●Plate/tube fouling from scale, sludge or marine growth, typically indicated by reduced temperature approach, high pressure drop or insufficient cooling/heating
●Gasket or braze leakage from ageing, chemical attack or thermal stress, typically indicated by external leakage or cross-contamination
●Corrosion/erosion of heat-transfer surfaces, typically indicated by fluid contamination, pinhole leakage or loss of performance
●Flow blockage or air locking, typically indicated by unstable temperatures or reduced flow
●Incorrect tightening or mechanical distortion after maintenance, typically indicated by gasket leakage or uneven plate compression

Service & Maintenance

Inspect for leakage, fouling, corrosion and abnormal pressure drop; clean heat-transfer surfaces using approved methods, inspect gaskets and verify connected strainers and flow conditions; exact tightening dimensions and test pressures come from manufacturer documentation.

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Replacement Parts

Keep approved gasket sets for plate units, sealing materials, vent/drain fittings and replacement plates or service kits according to criticality.
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Equipment Model #67859 · ✓ still in production