Plate Heat Exchanger · Heat Exchangers
The Alfa Laval S.p.A. T15-90P is listed as an Alfa Laval gasketed plate-and-frame heat exchanger for liquid heat-transfer duties. On ships, this type of exchanger is commonly installed in machinery-space cooling, heating or heat-recovery circuits where the selected plate and gasket materials are compatible with the media. Heat is transferred across corrugated plates arranged in a compressed plate pack, while gaskets direct the two fluids through separate alternating channels. Unlike a permanently brazed exchanger, a gasketed unit can be opened for inspection, cleaning and replacement of damaged plates or gaskets when correctly isolated. The T-series model designation and its suffix distinguish this entry from neighbouring configurations, but the exact plate count, heat-transfer area, gasket material, connection arrangement and design limits must be confirmed from the unit nameplate and manufacturer documentation. For the correct tightening dimension, pressure limits, cleaning method and material compatibility, refer to the manufacturer documentation for the exact figure.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
Other models of the same equipment type, Alfa Laval S.p.A. first.
What our service work and the manufacturer documentation say about keeping this model running.
Trend inlet and outlet temperatures, pressures and differential pressure so gradual fouling is detected before the exchanger loses required duty. Inspect the plate-pack edges, frame, tightening bolts, connections and supports for leakage, corrosion, distortion and piping loads. When opened, check plates for deposits, pitting, erosion, cracks and deformation and verify correct plate sequence and gasket seating during reassembly. Use only cleaning methods compatible with the installed plate and gasket materials. Refer to the manufacturer documentation for the exact tightening dimension, allowable pressure, temperature and cleaning limits.
Carry the exact gasket type used in the installed plate pack, selected spare plates where operationally justified, connection seals and associated strainer elements. Plate and gasket materials must be matched to the exact exchanger configuration and process fluids before ordering.
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