Abstract: The present invention is a bi-directional valve actuator with a ratchet mechanism for use in combination with a control valve which includes a stem which, when turned, adjusts the flow through the control valve. The bi-directional valve actuator includes a frame which is mechanically coupled to the control valve adjacent to the other end of the stem of the control valve. The valve actuator also includes a shaft which is disposed within the frame and which is rotatably coupled thereto with the shaft being mechanically coupled to the stem of the control valve so it can turn the stem thereof, a first ratchet wheel and a second ratchet wheel. Each ratchet wheel is coaxially aligned with the shaft and is fixedly coupled thereto.