They open when activated by the float rod to allow water in and close when the tank is filled

These sensor-operated valves have a spud coupling for attaching to a urinal spud

Bradley P15-382 Optic Sensor For Le Replacement Part for Bradley Washroom Accessory Products

Lead Length 26"

Ring to Ring Center: 10 9/16 in

Milwaukee Valve Check Valve, 3/8 in, Single, Inline Spring, Bronze, Sweat x Sweat - UP1548T 3/8 Diameter-1.31" They open when activated byMilwaukee Valve spring actuated check valve opens and closes by liquid flow and allows flow in only 1 direction to help prevent backflow. Features a silent closing design to help reduce water hammer. A directional arrow cast into valve aids with installation and the valve can be mounted vertically or horizontally. Model is suitable for use in plumbing and heating applications.