Water non-return valve 500X

DINflangebackflow

Safe partition and low head loss Light weight Reliable sealing performance Compact structure design, saving installation space Easy maintenance, and vertical or horizontal installation 500X backflow prevention device consists of a basic valve with two-stage non-return device and an external drainer, where both ends of the drainer′s guide piping are connected to the inlet and outlet of the basic valve respectively. When inlet pressure is greater than the outlet pressure, the drainer will automatically close. When the outlet pressure is greater than inlet pressure, the drainer will automatically open to drain the medium in the middle chamber of the basic valve to form an air partition to ensure the water supply safety. Please Provide the Following Data When Ordering Valve figure number/size/pressure grade/connecting end type/other optional accessories Note: In valve installation, it is strongly suggested that sufficient space should be left for easy maintenance in the future. A strainer shall be mounted in front of the valve to prevent foreign matters from blocking the valve.