What is a head?

The head is actually a component used to close the easy end, so as to achieve the isolation requirements of the inside of the container and the external medium, also known as the end cap. The head of a cylindrical container is generally a rotary shell.

The head is actually a component used to close the easy end, so as to achieve the isolation requirements of the inside of the container and the external medium, also known as the end cap. The head of a cylindrical container is generally a rotary shell. According to the shape of its surface can be divided into convex, conical, flat and combined shape. The so-called convex head refers to the head with a convex surface shape, such as hemispherical, elliptical, dish-shaped and non-flanged spherical seals.

For example, in practical applications, we see that some gas cylinders use a combined bottom head with a dead convex surface, which can not only meet the requirements of strength, but also ensure safe use. The products are mainly used in various container equipment, such as storage tanks, heat exchangers, towers, reactors, boilers and separation equipment. Materials are carbon steel (A3, 20#, Q235, Q345B, 16Mn, etc.), stainless steel (304, 321, 304L, 316, 316L, etc.), alloy steel (15Mo3 15CrMoV 35CrMoV 45CrMo), aluminum, titanium, copper, nickel and nickel alloys.