Boilers steam apparatus and other pressure vessels may be insured on their own through the Boiler Explosion policy. The boilers and pressure vessel policy is designed to cover explosion (the sudden and violent bending or tearing apart of the permanent structure of a boiler or other apparatus by force of internal steam or fluid pressure) and collapse (the sudden and dangerous distortion of any part of the boiler or the other apparatus by bending or crushing caused by steam or fluid pressure). Boilers and pressure vessels are huge investments as well as risky ones for any firm and it is wise to get insured in case of any calamities and this would be the ideal policy do so.