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How do you extend the life of a heat exchanger?

21-04-2021

Heat exchangers are made of robust materials, have no moving parts and operate at different pressures and temperatures. If a heat exchanger is used properly, there is no reason why it should not be able to run for many years. There are several steps to take to help extend the operational life of a heat exchanger.

Provide correct design data

In order to choose the right heat exchanger, it is best to provide the most accurate information. This not only ensures that your heat exchanger is thermally efficient, but also that it can function for a long time.

If flow rates are too high, erosion can be a problem. If the pressure is too high, leaks can occur. If there are unusual chemicals in the fluids (such as acids in cooling water), this can have consequences.

Installation and commissioning

Correct fittings and piping must be used when installing the heat exchanger.

Optimal results will be achieved when heat exchanger flows are counter-current, but sometimes this is not an option or the heat exchanger is designed otherwise. When in doubt, ask the heat exchanger supplier for more information or check construction drawings before installation.

Regular maintenance and service

Our aim is to design shell & tube heat exchangers in such a way that is helps maintenance and service. The end caps can be removed allowing the internal tube bundle to be removed for cleaning.

However, special attention is to be made when replacing gaskets and the use of proper torque. Approximately 65% of heat exchanger leaking is due to improper positioning or torque.

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