Here's the totally non effective for an attack emergency shut off valve for chlorine tanks big and small. It does what it was designed for, but it actually offers more leverage to knock the valve stem off the tank, and does nothing for a side rupture of the tanks. By far the most dangerous to the public. Keeping these cylinders safe is an almost impossible problem, but security of them is critical. As mentioned previously, a quick risk assessment of the danger, leads to the transportation of the tanks. Even a violent crash with the truck could have very bad consequences. Choosing the most densely crowded part of the trucks travel would require a little surveillance, which is part of any terrorist attack.
from CTI Consulting http://ift.tt/2dpu1Zi