In a piping system, what is the purpose of a float valve?

Prepare for the NCCER Boilermaker Test. Use flashcards and multiple-choice questions with hints and explanations. Get ready for your certification!

The purpose of a float valve in a piping system is to maintain liquid levels. This device operates by using a float that rises and falls with the liquid's level, thereby automatically opening or closing a valve to control the flow of liquid into or out of a tank or reservoir. When the liquid level drops to a certain point, the float lowers and opens the valve, allowing more liquid to enter until the desired level is reached. Conversely, when the liquid level rises, the float will lift and close the valve, preventing overflow.

This function is essential in various applications, such as in water tanks, boilers, and irrigation systems, where it is crucial to ensure that the liquid levels remain constant for optimal operation and efficiency. Maintaining liquid levels helps prevent issues such as flooding, dry running of equipment, and other operational failures in piping systems.

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