TANA42F inner assemble safety valve is to be applied to liquefied gas tank lorry in railroad and automobile or ground liquefied gas tank, to provide overpressure protection.

This dissertation is the subsystem of risk Assessment of liquefied gas Carrier, and its key content studies how to assess the failure risk of liquefied gas tank under non-normal heat source accident.

The tank, filled with 90-tons of liquefied gas, started leaking after it was knocked clear of the truck in a fierce collision.