A non-return valve outlet, also known as a check valve outlet, is a type of valve used to control the flow of water or other fluids in a piping system. The valve allows fluid to flow in one direction only, preventing backflow or reverse flow.
Non-return valve outlets are commonly used in water supply systems to prevent contamination of the water supply from backflow. They are also used in industrial processes where the flow of fluids must be controlled and backflow must be prevented.
Non-return valve outlets can be designed in a variety of configurations, including flanged, threaded, or socket-welded connections. They can also be made from a variety of materials, including plastic, brass, stainless steel, and cast iron.
When installing a non-return valve outlet, it's important to ensure that it is properly sized and installed in the correct orientation to ensure proper operation. It's also important to ensure that the valve is regularly inspected and maintained to prevent fouling or damage that could impair its function.
In summary, a non-return valve outlet is a type of valve used to prevent backflow or reverse flow of fluids in a piping system, and is commonly used in water supply systems and industrial processes.