Head is an important component of pressure vessel equipment in petrochemical industry, atomic energy industry, food and pharmacy industry.

The head is the end cover of the pressure vessel and is a main pressure component of the pressure vessel. The role is sealed. First, the upper and the lower parts of the pot shaped pressure vessel are made, and the two is that the pipe is at an end, and is not prepared to extend further, and then a sealing head is used to seal the pipe in the form of welding. The effect of heads and similar products have a blind plate and the cap, but the two products can be removed. The head is welded and can not be disassembled. The fittings are made of pressure vessel, pipe, flange, elbow and so on.

The quality of the head is directly related to the long-term safe and reliable operation of the pressure vessel.