Abstract: A device is provided for attachment to a pressure tank car for use for the removal of the contents of the tank car in the situation when the tank car is damaged or overturned, said device comprising a metallic tubular assembly attached to a valve on the tank car said tubular assembly containing a relatively inflexible rod-like elongate unit which can be pushed through the tubular assembly and into the valve on the tank car such that the sealing float of the excess flow check valve can be held in the open position thereby permitting removal of the tank contents via the tubular asembly.