Welding flange are widely applicated in petrochemical industry

Flange in the oil and industry above the application is very common, we can see the use of butt welding flange in various categories of industry.  However, the use of welding flange is the need to have a lot of attention, these attention is the need to pay attention to.  

 What are the fundamental considerations for welding flanges in use?  

There are two kinds of butt welding flanges used in petroleum and chemical industry, one is the pressure vessel butt welding flange specification, the other is the pipe butt welding flange specification.  Flat welding and butt welding butt flange with and without the lining ring of two kinds.  When the equipment is made of stainless steel, carbon steel butt welding flange 7 and stainless steel ring, can save stainless steel.  

The nominal diameter and nominal pressure of the butt flange must be known when the size of the butt flange is determined by the butt flange specification.  The nominal diameter of the welding flange of the pressure vessel and the nominal diameter of the pressure vessel should be the same series of values.  For example, a DN1000mm pressure vessel shall be equipped with a DN1000mm pressure vessel butt welding flange.  

There are two kinds of butt welding flange specifications used in petroleum and chemical industry. One is the pressure vessel butt welding flange specification, and the other is the pipe butt welding flange specification. There are two kinds of flat welding and butt welding flange with and without the lining ring.  When the equipment is made of stainless steel, carbon steel butt welding flange 7 and stainless steel ring, can save stainless steel.  

The nominal diameter and nominal pressure of the butt flange must be known when the size of the butt flange is determined by the butt flange specification.  The nominal diameter of the welding flange of the pressure vessel and the nominal diameter of the pressure vessel should be the same series of values.  For example, a DN1000mm pressure vessel shall be equipped with a DN1000mm pressure vessel butt welding flange.