"> Alfa Laval S.p.A. AlfaNova-52-90P
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Alfa Laval S.p.A.

AlfaNova-52-90P

The Alfa Laval S.p.A. AlfaNova-52-90P is an AlfaNova fusion-bonded plate heat exchanger. AlfaNova units use corrugated stainless-steel plates bonded with Alfa Laval's fusion-bonding process, producing an all-stainless-steel heat-transfer path without conventional copper or nickel brazing material. This construction is intended for duties where material compatibility, cleanliness or resistance to aggressive media makes a conventional copper-brazed exchanger undesirable. The unit is compact and gasket-free, so the plate pack is not normally opened for onboard maintenance and cleaning is performed by suitable flushing or cleaning-in-place procedures. Neighbouring AlfaNova sizes and suffixes represent different configurations, but no plate count, duty or operating limit should be inferred from the supplied model string alone. The designation AlfaNova-52-90P identifies a specific AlfaNova fusion-bonded plate heat exchanger configuration in the supplied equipment list. Exact capacity, pressure and temperature limits, materials, connection details and internal configuration must be verified from the unit nameplate and manufacturer documentation; refer to the manufacturer documentation for the exact figure.

Alfa Laval S.p.A. AlfaNova-52-90P

Components & Design

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Technical Data

Model number AlfaNova-52-90P
Plate count (min) 20 plates
Plate count (max) 300 plates
Max flow rate 126.5 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) 146 plates
Effective flow rate at duty point 126.5 m3/h
Configuration 90P configuration

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Common failures & inspection points

Fouling or scaling inside the narrow plate channels reduces heat-transfer performance and increases pressure drop
Blocked strainers or restricted upstream piping reduce flow and produce abnormal outlet temperatures
Corrosion, erosion or fatigue damage to the bonded plate pack can cause internal cross-contamination between circuits
External leakage at connections caused by damaged joints, vibration or piping loads produces visible fluid loss
Freezing, thermal shock or operation outside the approved pressure and temperature envelope can damage the plate pack and lead to leakage

Service & Maintenance

Trend inlet and outlet temperatures and pressures to identify gradual loss of thermal performance. Inspect the external plate pack, connections and supports for leakage, corrosion, vibration damage and excessive piping loads. Maintain upstream strainers and system cleanliness, and use only cleaning-in-place procedures compatible with the installed materials. Any indication of cross-contamination requires prompt investigation because the bonded plate pack is not normally opened for onboard repair; refer to the manufacturer documentation for test limits and cleaning criteria.

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Replacement Parts

Because the bonded plate pack is a sealed assembly, the principal strategic spare is a correctly specified replacement heat exchanger where redundancy and trading pattern justify carrying one. Also consider connection seals, strainer elements, isolation-valve service kits and approved cleaning consumables. A replacement unit must match the original materials, connections, duty and approval requirements.
Equipment Model #154106 · ✓ still in production