Backflow prevention valves, also known as check valves or non-return valves, are mechanical devices designed to prevent the reverse flow of fluids in a piping system. Their primary function is to ensure that the flow of a substance remains unidirectional, preventing backflow or back-siphonage.
The backflow of fluids can occur due to a variety of reasons, such as a drop in supply pressure, a sudden increase in downstream pressure, or a reversal of flow caused by a back-siphonage event. Backflow can lead to contamination of the potable water supply, cross-connections between different water sources, or damage to equipment or pipelines.
Backflow prevention valves are installed in plumbing systems, industrial processes, and other applications where maintaining the integrity of fluid flow is critical. These valves operate on the principle of a one-way flow mechanism, allowing fluid or gas to flow in one direction while preventing reverse flow.
Valves need to be tested annually to ensure water quality and safety. Tomlinson Plumbing can assist. Call us on 5261 2422.
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