Process Equipment

As a general guideline, a plate-and-frame heat exchanger should be professionally inspected at least once a year. More frequent inspections may be appropriate depending on the application, operating conditions, cleaning procedures, and production demands.

Between full inspections, routine checks can help identify developing issues before they lead to leaks, reduced heat transfer performance, or unexpected downtime. Manufacturer recommendations for the specific heat exchanger should also be considered.

Common signs include leaks, changes in operating temperature, increased pressure drop, reduced heat transfer performance, product buildup, reduced clean-in-place (CIP) effectiveness, or visible damage to the plates, gaskets, or frame.

During an inspection, plates should also be checked for corrosion, deformation, or other damage. Gaskets should remain flexible and free of cracks, tears, or deterioration.

If performance has changed or cleaning is becoming less effective, Oliver M. Dean can help evaluate whether the heat exchanger needs cleaning, maintenance, replacement components, or further inspection.

Cleaning focuses on removing product residue, scale, and other deposits that can interfere with heat transfer and sanitary operation.

Maintenance goes further by inspecting the condition of the plates, gaskets, frame, and other components and repairing or replacing parts as needed. A complete maintenance program may include cleaning, plate inspection, leak or crack detection, regasketing, and replacement of damaged components.

For more extensive service, plate packs may also be removed and sent out for professional cleaning, inspection, and regasketing rather than being fully serviced on site.

Yes. Depending on the condition of the heat exchanger, worn gaskets, damaged plates, frame components, and other parts can often be replaced without replacing the entire unit.

Replacement plates, gaskets, frame parts, and complete replacement plate packs may be available depending on the manufacturer and model. Oliver M. Dean can help determine which components are available and whether repair or replacement makes the most sense for the application.

The best option depends on the condition of the plates, gaskets, and frame, along with the heat exchanger's current performance and process requirements.

An inspection can help determine whether the appropriate next step is cleaning, regasketing, replacement plates, frame repair, a retrofit, or replacement of the complete heat exchanger.

Oliver M. Dean can help evaluate the existing equipment and recommend the most practical option based on performance, maintenance needs, process requirements, and the condition of the unit.