American national standards ASME/ANSI B16.5 and B16.47 together cover pipe flanges up to NPS 60.ASME/ANSI B16.47 covers two series of flanges,ANSI/ASME B16.47 Series A which is equivalent to MSS SP-44 (the 1996 Edition of MSS SP-44 complies with B16.47 tolerances),and ANSI/ASME B16.47 Series B ...

The ASME B16.47 flanges can divided into ASME B16.47 series A flange and ASME B16.47 series B flange for blind flange and weld neck flange.Series A flange was known as MSS SP 44,Series B flange was also formerly known as API 605 flange. ASME B16.47(large diameter steel flanges) is a standard for ...

Spiral wound gasket is one type of sealing gasket,which is the best elastic gasket in semi-metal close gasket,and is formed by alternating winding of v-shaped or w-shaped thin steel strip and various fillers.At present,it is widely used in pipeline,valve,pressure vessel and other flange connecti ...

Graphite gasket is one kind of the common flange gaskets and used to prevent pipeline leakage.Graphite gasket is made of pure graphite plate or metal reinforced graphite plate cutting or stamping,with many excellent sealing performance,such as:thermal stability,self-lubrication,corrosion resista ...

Socket welding flange(SW flange) refers to the flange which is welded at the end and outside of the pipe by inserting the end of the pipe into the step of the flange ring.There are neck and no neck.The flange with neck has good rigidity, small welding deformation and good sealing property.It can ...

There are the problems we should pay attention to when processing butt welded flange: 1.Annealing air. The pure hydrogen is generally used as annealing air for butt welding flange. The air purity is over 99.99%. If the other part of the air is inert gas, the purity can also be lower, but it can ...

Stainless steel flange will not produce corrosion,pitting corrosion,rust,easy to wear.Stainless steel(SS) is one of the most intensive building metal materials.Because stainless steel has good corrosion resistance,it can make structural parts permanent to maintain the integrity of Engineering de ...

In the process of using large size forged flange,leakage occurs due to improper connection of large flange or long service life.Users need not worry about this situation.First,look at the leakage site.In general,it is impossible to eliminate the leakage by injecting sealant into the gap due to t ...

The metal flange should be greased before storage for a long time, and the storage space should be dry to prevent rust.Each flange should be stored separately.Because of the different materials and batches of metal materials, contact storage will accelerate corrosion and rust due to electrochemi ...

A few days ago,a customer asked me to send sample of slip on ring lap joint flange.He wanted to order some products for his construction project.I sent samples of these products to him and also found some documents regarding the products. Slip on ring lap joint flange is movable flange and direc ...

Blind flange(abbreviation is BL),its proper name is flange cover.It is a flange without holes in the middle for sealing the pipe plug.There are many types of sealing surface,such as flat face,raised face,ring joint face,tenon and groove surface,and ring connection surface. ANSI B16.5 A105 forged ...

Forged flange is a flange in mechanical performance is one of the best products,its raw material is commonly tube billet,and then after cutting to constantly pounding,to eliminate the segregation of steel ingot defects,osteoporosis, etc.Price and mechanical properties are higher than normal cast ...