Backflow Prevention Device With Valves And Pipes Set In Outdoor Environment. Backflow Prevention Device, Which Is An Assembly Of Valves And Pipes Designed To Ensure Water Flows In A Single Direction And Prevent Contamination Of Potable Water Supplies

KEYWORDS

backflow prevention device assembly valves pipes bolts nuts design water flow directional contamination potable supply components large black connected flanges orange painted mechanism shutoff circular handles metal chain padlock secure operation silvercolored cylindrical outdoors patch gravel dirt concrete curb gray asphalt pavement lines parking lot street sunny daylight sunlit morning shadows cast