Gear by Sterivalves is a quarter turn reducer that can be operated manually with a handwheel, or automatically for the opening and closing of a butterfly. This interception mechanism allows to intervene in full safety on the plant in every case of need of opening or closing of the product flow. Gear is the reducer that can be installed on all systems with butterfly valves that require both manual and automatic opening or closing. The reducer is extremely versatile as it can be customized according to the customer’s needs.