Better heat exchangers reduce the risk of unplanned GPHE downtime

Published: 2-Feb-2017

Alfa Laval's gasketed plate-and-frame heat exchangers provide efficient heat transfer in compact equipment with a small footprint

Getting the best plate heat exchanger performance requires preventive maintenance, especially for hygienic applications within the food, beverage and pharmaceutical industries.

Each process system has different parameters that affect the heat transfer and sealing efficiencies of the plates and gaskets.

A gasket, its material properties and its construction are specifically selected to provide optimal sealing performance for its intended application.

Knowing exactly when to replace gaskets is almost impossible since the timing varies, depending on the application.

Over time, all gaskets wear due to natural ageing as well as the temperature, pressure and stress of normal operating conditions.

Without preventive maintenance, companies risk unplanned downtime, which can be costly.

Considerations include:

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

Alfa Laval is a global provider of specialised products and engineering solutions based on its key technologies of heat transfer, separation and fluid handling.

The company’s units have a flexible design and are easy to service and maintain. Their equipment, systems and services can be used to help heat, cool, separate and transport products in industries that produce food and beverages, chemicals and petrochemicals, pharmaceuticals, starch, sugar and ethanol.

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