"> Alfa Laval S.p.A. AlfaNova-52-120P
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Alfa Laval S.p.A.

AlfaNova-52-120P

The Alfa Laval S.p.A. AlfaNova-52-120P is a plate heat exchanger from the AlfaNova family and is listed for marine heat-transfer service. AlfaNova units use a compact all-stainless plate construction with fusion-bonded joints rather than conventional elastomer gaskets, making the family suitable where copper brazing or gasketed construction is undesirable. On board, such an exchanger may be installed in cooling, heating or heat-recovery circuits when its materials and approved operating envelope match the service. Heat passes through corrugated plate channels while the two media remain separated inside the plate pack. The suffix in the supplied model name distinguishes this configured variant from neighbouring AlfaNova entries, but plate count, heat-transfer area, pressure class and connection details must be confirmed from the exact unit documentation rather than inferred from the name. For allowable pressures, temperatures, cleaning chemistry and other exact limits, refer to the manufacturer documentation for the exact figure.

Components & Design

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Technical Data

Model number AlfaNova-52-120P
Plate count (min) 20 plates
Plate count (max) 300 plates
Max flow rate 161.0 m3/h
Design pressure 32 bar
Application fusion-bonded all-stainless, hygienic
Plate material Stainless steel (AISI 316)
Brazing material Stainless steel filler
Plate count (configured) 188 plates
Effective flow rate at duty point 161.0 m3/h
Configuration 120P configuration

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Common failures & inspection points

Fouling or scaling inside narrow plate channels can increase pressure drop and reduce heat transfer
Corrosion, erosion or fatigue damage can create internal leakage between circuits, indicated by cross-contamination or unexplained changes in fluid condition
External connection leakage caused by damaged joints or piping loads can produce visible fluid loss
Freezing, thermal shock or operation outside the approved envelope can damage the plate pack and cause leakage
Blocked strainers or inadequate circulation can reduce flow and produce abnormal outlet temperatures

Service & Maintenance

Trend temperatures, pressures and pressure drop and investigate gradual loss of thermal performance. Inspect external surfaces, connections, supports and adjacent piping for leakage, corrosion, vibration and excessive loads. Use an approved flushing or cleaning-in-place method compatible with the exchanger materials and deposits because the bonded plate pack is not normally opened for routine plate replacement. Investigate any indication of internal cross-contamination promptly. Refer to the manufacturer documentation for exact operating and cleaning limits.

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Replacement Parts

The principal strategic spare may be a complete correctly specified exchanger where vessel redundancy and trading pattern justify it, together with connection seals, strainer elements and approved cleaning consumables. Any replacement must match the exact materials, connections, duty and approved operating envelope.
Equipment Model #154108 · ✓ still in production