Flow control device and method of installation thereof

Abstract

To provide a flow control device that can be properly installed inside a housing while maintaining a continuous flow state. [Solution] The butterfly valve 1, as a flow control device, is installed in a continuous flow state within a housing 3 that seals a fluid pipe 2, which is a pipeline component, and comprises at least a main body 15 that has an opening 14 and is seated in a sealed manner within the housing 3, and a valve body 16 provided on the main body 15 that is rotatable between an open position that opens the opening 14 and a closed position that closes the opening 14, and a stopper device 20 is provided on the main body 15 as a restricting means for restricting the rotation of the valve body 16 and is releaseable.

Claims

1. A flow control device installed in a continuous flow state within a housing that seals the pipeline components, The flow control device comprises at least a main body having an opening and seated in a sealed manner within the housing, and a valve body provided on the main body that is movable between an open position that opens the opening and a closed position that closes the opening. A flow control device characterized in that the main body is provided with a restricting means for restricting the movement of the valve body, which can be released from the restriction.

2. The flow control device further comprises a reduction gear that is detachably mounted on the main body and reduces the rotational torque of the pivot shaft that rotatably supports the valve body, The flow control device according to the description, wherein the reduction gear is detachable from the main body while the restricting means restricts the movement of the valve body.

3. The flow control device according to claim 2, characterized in that the regulating means is provided between the valve body and the reduction gear in the axial direction of the pivot shaft.

4. An installation method for installing a flow control device in a continuous flow state within a housing that seals the pipeline components, The flow control device comprises at least a main body having an opening and seated in a sealed manner within the housing, and a valve body provided on the main body that is movable between an open position that opens the opening and a closed position that closes the opening. The process of fitting the housing onto the conduit component in a sealed manner, The process of cutting or drilling the conduit components inside the housing, The process of installing the flow control device, with the regulating means attached to the main body, inside the housing, A method for installing a flow control device, characterized by comprising the step of releasing the restriction of the aforementioned restricting means.

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