Non-Return Valve designed for use in pipelines, systems, and machines for different industry. They are very good for liquid products, additives, and cleaning liquids. Non-Return Valve can prevent pipelines running empty and are ideally installed on the pressure side of pumps to prevent the liquid level dropping or higher system components running empty when the pump is switched off. Mixing and metering systems, which combine different media, are another use of it. Many manufacturers use Non-Return Valve for various applications. Non-Return Valves received their name from what they do. These values allow fluid, whether in the form of liquid or gas, to flow in only in one direction. There are different types of non-return valves such as spring-loaded, clapper and swing. These specific valves are used mainly in heating and cooling systems but can also be seen in water systems.