I remember many years ago when the world was in black and white seeing a training film. in the film they had a full nitrogen cylinder set up on a trestle in an aircraft hangar. they then dropped a big weight on the valve (rope and pulley's) the valve snapped off and the cylinder shot off like a rocket and through the end wall of the hangar. It was most impressive and I have always been very careful with gas cylinders ever since.
CheersThere was the data centre incident
http://www.constructionenquirer.com/2013/07/06/plumber-killed-by-barrage-of-flying-gas-cylinders/
Is this what you are after?
