Electric actuator

摘要

The present invention with the valve housing which is installed on one side, is provided in the housing, one end of the shaft housing and a motor that make this rotation possible di clutch portion protrudes outwardly, and the rotation transmission portion to transfer a rotation force of the motor to the valve for opening and closing member for opening and closing of the valve is made such that, optionally, are connected to open the valve by the rotation transmission part and when the opening and closing motor in a motor-driven actuator relates to include the open and closed limit switches respectively disposed in the housing to stop. According to the invention, and to allow easy opening and closing of the valve by hand from the outside, the reliability of the valve opening and closing operations, while not only the user can easily and conveniently through the use of the simplified solid part, the cost of manufacture and maintenance reduce, on-site and made available without the need for a separate operating panel. ;