If you’re looking to get good performance from your gasketed plate heat exchanger, preventive maintenance is required. This is especially true for hygienic applications within the food, dairy, beverage and pharmaceutical industries, according to heat exchanger manufacturer Alfa Laval.

When performing preventive maintenance on the gaskets of your plate heat exchanger, here are some points to consider:

  • Higher operating temperatures and pressure cause more wear and tear on the gaskets.
  • Gaskets are subjected to local stress from the moment you first attach them and tighten the plates.
  • Store spare gaskets in a sealed bag in a dry, cold and dark place, and store them away from ozone-producing equipment such as machines or light armatures.

A gasket, its material properties and its construction are specifically selected to provide optimal sealing performance for its intended application, the company notes in a technical brief. Knowing exactly when to replace gaskets is almost impossible because the timing varies depending on the application. Work with your heat exchanger supplier to identify a proper preventive maintenance and inspection schedule based your specific application conditions.