Using Brode's equation a rupture can release 52MJ of energy or 12kg of TNT. An high explosive tank shell only has 11MJ of explosive energy.
replyBut also LPG is extremely flammable, while air isn't, and air can be safely leaked in emergency.
replyThis is enough pressure to launch a car and flip it in the air, you can't just "safely leak" it at any useful rate of speed in an emergency. In an emergency it will rapidly explode.
replydeleted
replyFor reference, tractor trailer tires run about 7 bar and we’ve all see those videos.
reply