List of featured suppliers of NON-RETURN VALVES on Building Products Index
Non-return valves are devices that allow fluid or gas to flow in only one direction. They are commonly used in plumbing and fluid control systems to prevent backflow, which can cause damage or contamination. Non-return valves work by using a spring-loaded mechanism or gravity to close off the valve when fluid or gas pressure drops below a certain threshold or starts to flow in the wrong direction. They are an essential component of many construction and building projects, especially those involving water, sewage, or gas pipelines.