What is the standard expression of flanges?
HG/T 20592-2009, the latest 2009 edition of the ministry of chemical engineering was based on the definition of ASME and EN, but there was a difference. In EN 1092-01-20 07, under the same stress level, the thickness of the different flange form may not be the same, but in HG/T can see clearly that all of the flange in the form of flange dimensions are used in the EN one-piece flange thickness. There is a gap between the rigor and logic of the flanged standard of the personal sensory department and the standard of logic and the ASME
According to the production of material can be divided into: WCB (carbon steel), LCB (low temperature carbon steel), LC3 (3.5% nickel steel), WC5 (1.25% 0.5% chrome molybdenum steel), WC9 chromium (2.25%), C5 (% 5% chromium molybdenum), C12 molybdenum chromium (9% 1%), CA6NM (4 (12% chromium steel), CA15 (4) (12% chromium), CF8M stainless steel (316), CF8C stainless steel (347), CF8 stainless steel (304), CF3 (304 l stainless steel), CF3M (316 l stainless steel), CN7M (alloy), (monel), N7M M35-1 (B) hastert nickel alloy, CW6M nickel alloy C (haas tower), CY40 (for nickel alloy) flange (flange, be) by a flange, a gasket and a number of bolt and nut. Gasket in between the flange sealing surface, tighten the nut, washer on the surface of a pressure deformation after reaching a certain value, fill and seal surface uneven, not connected closely. Flange connection is a detachable connection. According to the connected components can be divided into the vessel flange and tube method; according to the structure, have integral flange, flange and threaded flange.
The common flange has flat welding flange and welding flange. The stiffness of flat welding flanges is poor, applied to the situation of pressure p is not equal to 4MPa. The welding flange is also known as the high neck flange, which is rigid and applied to high pressure temperature. There are three types of flanged cover: flat surface covers, which apply to situations where the pressure is low and the medium is not toxic. Embossed cover, applied to a slightly higher pressure occasion; It is suitable for inflammable, explosive, toxic medium and high pressure situations
The name of the Chinese name: the name of the name: the other name: the flange definition: the structure or mechanical parts that are perpendicular to the edge of the axis of the parts. The Flange is also called a Flange or Flange dish. The flange is the part of the pipe that connects the pipe to the pipe. Flange connection or flange connection, it is to point to by the flanges, gaskets and bolts are mutually connected as a set of sealing structure detachable connection, pipe flange refers to the plumbing for piping flange, used in equipment refers to the import and export of the flange of the equipment. There are holes in the flanges, and bolts make two flanges. The flange is sealed with gasket. Flange threaded connection (wire) flange and welding flange.
