What is the main function of a check valve in a pump system?

Study for the Sewage Treatment Worker Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The primary function of a check valve in a pump system is to prevent backflow of water. This important component allows fluid to flow in only one direction, ensuring that when the pump is turned off, the water does not flow back into the system due to gravity or hydraulic pressure changes. This is crucial in maintaining system efficiency and protecting equipment from potential damage caused by backflow, which can lead to contamination or the disruption of the intended flow rate within the system.

Check valves are vital in many applications, including sewage treatment, where it is important to keep the treated water moving in the right direction and prevent untreated water from flowing back into the treatment process. Other functions mentioned, such as regulating water pressure, enhancing pump speed, or filtering contaminants, are not roles played by check valves, which are specifically designed for one-way flow control.

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