The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.
The ball valve is used to close and open the flow of the medium through the pipe.