I came across this arrangement, and we debated the position of this valve for 20 minutes, and 7 of us never came to an agreement. We even looked at other tanks that had this valve, and they were different. The valve shown below had its handle reversed as the tank’s ladder was in the way of the valve handle when it was “CLOSED.” The tank next to this one had its handle cut short to be in its proper/original position. So it was in the 180-degree opposite position and that handle legend said it was CLOSED. So I ask you, is the valve shown below OPEN or CLOSED?
This is a 1/4-turn ball valve with the handle perpendicular to the pipe…
Pay close attention to the legend on the valve handle. And remember, the handle was removed and put on “backwards” so as to not come into contact with the tank ladder.