Dual Check Valves are utilised for protection from cross contamination of non
potable water with potable water. They are a mandatory requirement and should be fitted on all irrigation systems that are connected to the mains because Dual Check Valves effectively prevent the back-flow of potentially harmful debris. They are used in low hazard conditions such
as rain water tank systems and domestic meter connections. Be aware that a regular Spring Check Valve only provides one level of back flow and there is still a risk of contamination so they are not thorough enough and a Dual Check Valve is required.
- Maximum working pressure 1200kPa
- Min. working pressure 60kPa
- Not to be used on hot water installations
- Suitable for vertical or horizontal installations
If you are unsure of the size of the valve you need, please see this link: How to measure BSP threads and PVC Pipe
