DM971X-4-type electric gas sealed butterfly valve with electric devices driven directly or through a mechanical actuator driver disc to complete the opening and closing action. The valve can be performed in the field by the indicator on-site monitoring electric devices. Can also be remotely controlled by a valve controller. The electrical signals can be input into the computer program control. The electric valve means is provided with hand - electric switching means may be operated manually if necessary. The valve can be installed anywhere, no direction.