Abstract: A valve safety device comprised of the valve receiver (12) and the valve connector (11), made of high-strength metal is connected to a standard dispensing valve used on high-pressure containers, tanks or oil wells. Upon damage to the valve, the safety device breaks at a pre-determined location (40), allowing the plunger (10) to disengage, which releases the ball (13), normally held in place by the spring (14), allowing the ball (13) to close the dispensing hole, preventing the contents from escaping. Continued use of the container is quickly accomplished by screwing in a new safety device top (12), which pushes the plunger (10) into the ball (13), again allowing for free flow of the contents when the dispensing valve is operated.