The use and shape of the head

The use and shape of the head  

The head is the end cover of the pressure vessel. It is a main bearing part of the pressure vessel. It plays a sealing role.  One is to make the upper and lower bottom of the can-shaped pressure vessel, and make the pipe to the end, not ready to extend down, then use a head to seal the pipe in the form of welding.  The blind plate and tube cap are similar to the head, but those two products can be disassembled, and the head can not be disassembled after welding.  With its supporting pipe fittings pressure vessel, pipe, flange, elbow, tee, tee and other pipe fittings products.  

Head is a part of the container, is a welded cylinder body, according to the head and the shape of the use of different, can be divided into spherical, oval, butterfly, dome, cone shell and cap and other shapes, including spherical, oval, butterfly, dome head also known as convex head.  In the welding is divided into butt welding head, socket welding head, used for all kinds of container equipment, such as: boiler and separation equipment.  The material of the head pipe fittings is divided into carbon steel (A3, 20#, Q235, Q345B, 16Mn, etc.), stainless steel (304, 321, 304L, 316, 316L, etc.), alloy steel (15Mo3 15CrMoV 35CrMoV 45CrMo), etc.  

The head refers to the element used to close the end of the container so that the internal and external media are isolated, also known as the end cover.  The shape of the head surface can be divided into convex shape, conical shape, flat shape and combination shape.  Convex heads refer to heads with convex surface, such as hemispherical, oval, butterfly, etc.  Some gas cylinders use convex inwards combined bottom head, which can ensure the strength, but also meet the needs of use and the quality of the head.  Obtain customer satisfaction and long-term cooperation.