Worm gear operators are essential mechanical devices used to control the movement of valves in various industrial applications. They consist of a worm (a screw-like component) and a worm gear (a toothed wheel). When the worm is rotated, it turns the worm gear, converting the rotational motion into linear or angular movement.
Over the past three decades, valve automation has taken the lead in the flow control industry. While power actuation commands significant attention, imagination, and the majority of market growth, manual valve actuation remains on the rise, benefiting from its own innovations. This article offers an overview of the fundamental principles of these reliable operators and explores current market trends. Additionally, we examine the advantages and costs associated with manual worm gear designs.