What is the function of a condensate leg in steam equipment?

The function of a condensate leg in steam equipment is indeed to allow condensate to cool and permit trap re-opening. In steam systems, when steam is used for heating, it condenses into water (condensate) as it transfers its heat. The condensate leg serves as a low point in the piping where this condensate can collect.

Positioning the condensate leg effectively ensures that the temperature of the condensate decreases, which is necessary for the steam trap to operate correctly. The steam trap's function is to allow condensate to exit the system while preventing steam from escaping. If the condensate is too hot, the steam trap might not open properly, leading to inefficiencies.

By allowing the condensate to cool in the leg, it ensures that the trap can open when required, maintaining the efficiency and proper functioning of the steam system. Understanding this mechanism is crucial for effective steam system management.