Abstract: A chemical stick launcher includes a stack of vertically mounted low voltage electrically operated valves providing spaces between the valves for chemical sticks. The valves are manipulated by a controller to drop sticks from the compartments between the valves after suitable time delays so the launcher can supply chemicals to a hydrocarbon well over a period of time. The stack is insulated to reduce the operating temperature of the launcher and thereby allow a wider variety of chemical compositions to be used. The low voltage electrically operated valves include a front panel providing a visual indicator of whether the valves are open or closed. The valves are mounted on the stack so the front panels face in the same direction so a standing person can see all the indicators from a single position.

Abstract: A chemical stick launcher includes a stack of vertically mounted low voltage electrically operated valves providing spaces between the valves for chemical sticks. The valves are manipulated by a controller to drop sticks from the compartments between the valves after suitable time delays so the launcher can supply chemicals to a hydrocarbon well over a period of time. The stack is insulated to reduce the operating temperature of the launcher and thereby allow a wider variety of chemical compositions to be used. The low voltage electrically operated valves include a front panel providing a visual indicator of whether the valves are open or closed. The valves are mounted on the stack so the front panels face in the same direction so a standing person can see all the indicators from a single position.