Multi turn valve drive device, applied to straight stroke valves such as gate valves, globe valves, needle valves, etc. The device uses bevel gears with thrust bearings and has the advantages of smooth operation, low noise, high torque, and high efficiency. The shell material of this series is ductile iron. Mold precision casting, beautiful appearance, sturdy structure, suitable for various working conditions. Standard IP67, customizable for IP68 working conditions.