The bleeder valve is used for constant flow in a water trough. Some use them to reduce freezing problems as well. It is assembled with a stainless steel screw and spring.
Our brass bleeder valve with an elbow can be added to any of our water tank float valves that have been ported. All of our valves/kits have an option to add a bleeder to them on their specific pages. You can also order separately if needed.
A 1-way or 2-way extension kit for the bleeder valve can be ordered separately to keep more parts of the trough open longer in freezing temperatures. The second picture is the 2-way extension kit. The third picture is our valve with the bleeder and 1-way extension kit attached.