What kind of valve is it? How do you see the status of the switch?
Globe valve, not ball valveClockwise (Bell) needle to reduce the flow to the end of the shutdown, the counter clockwise to open. You can turn the multi circle plate will also lift up and down. The spindle, to the top is open, down to the edge off.The ball valve has a strip handle, the line is connected, and the cross is turned off
This is called gate valve. The core is opened and the core is screwed down. Turn left and right.
This is a ball valve, that is, usually said cut-off valve, to determine the switch state is carefully look at, there is a switch on the status of the arrow, you will understand.
