Central Cooler (Plate Type) · Heat Exchangers
A heat exchanger leak test is a proactive way to secure product safety, prevent contamination, and ensure process reliability. By detecting even the smallest leaks before they cause downtime, you can plan maintenance more effectively and extend the service life of your heat exchangers. Alfa Laval’s integrity test helps identify hidden cracks and wear so you can maintain uptime, improve safety, and meet regulatory standards with confidence. The video introduces the Integrity Test procedure and what it can do for your business, as a proactive approach to securing uptime and product safety.
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| Plate pack opening and inspection | typically every 12-24 months depending on cooling water quality - confirm against maker/class requirement |
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| Gasket replacement | condition-based, commonly every 3-6 years or at first sign of hardening or leakage |
| Integrity/leak test | every time the plate pack is opened and reassembled |
| Anode inspection (if fitted) | typically every 6-12 months |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Tie bolt / plate pack compression length | set to the value on the frame drawing for the fitted gasket type - do not estimate; use the specific unit's documentation |
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Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Central coolers sit within the sea chest/cooling water boundary and are typically covered under machinery class rules; surveyors expect evidence of periodic leak/integrity testing and gasket condition records, particularly where the cooler separates seawater from a classed system such as fuel or lube oil cooling.
Estimated lifetime: Plates in a gasketed cooler of this type commonly remain in service 10-15 years with periodic gasket renewal; individual plate life is governed mainly by the fouling and corrosion rate of the specific seawater supply rather than a fixed hour figure - confirm condition at each opening
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