The gear actuator can be installed directly on the gate valve, globe valve and so on. By using Spiral bevel gears and thrust ball bearing, the gear actuator can run smoothly, and have high output torque, low noise and high efficience. It can avoid water & oil leakage as sealing glands are used at all the part passed. And the Protection grade can be IP65. The handwheel and the stem covers can be customized. For different valves and requirements, there are single stair gear actuator with motor flange, double stair gear actuator with motor flange and double stair gear actuator with handwheel etc.