Butt Welding Pipe Fittings
What are butt welding pipe fittings?
Butt welding pipe fittings are the pipe fittings have the connecting end for butt welding(BW).It is designed for changing pipe direction and pipe diameter,branching or ending a pipe system.The butt welding pipe fitting end is connected to the end of pipes or pipe fittings by butt welding joint,it can also be connected to weld neck flange.Butt welding pipe fittings are used to connect with steel pipes,pipe fittings or flanges which have the same size and same schedule butt welding ends.The ends of butt welding pipe fittings are plain ends or bevel ends.
Stainless Steel Butt Welding Pipe Fittings
The butt welding pipe fittings could be seamless or welded.The seamless butt welding fitting means there is no welding seam on the body of the pipe fitting when manufacturing,it is usually produced from the seamless steel pipes.The welded butt welding pipe fitting means there is a welding seam on the body of the pipe fitting when manufacturing,usually,it is produced from the welded pipes or formed steel plates.Commonly the butt welding pipe fittings nominal size more than 26 inchs are welded butt welding pipe fittings,and smaller butt welding fittings are seamless one.
Specifications of butt welding pipe fittings:
Size range: 1/2″-72″,DN15-DN1800
Types of butt welding pipe fittings:
- butt welding pipe elbows: 45 degree elbow,90 degree elbow,180 degree elbow(return),long radius elbow(LR elbow),short radius elbow(SR elbow)
- butt welding pipe tees: equal tee,reducing tee,lateral tee,barred tee,split tee
- butt welding hot induction bends: 3D,5D,7D,10D bend
- butt welding pipe reducers: concentric reducer,eccentric reducer
- butt welding pipe cap
- butt welding cross
- butt welding stub end
- butt welding insulation joint
- butt welding saddle
Carbon Steel Butt Welding Pipe Fittings
Materials of butt welding pipe fittings:
The materials of butt welding pipe fittings could be carbon steel,stainless steels or alloy steels,and other alloys like the nickel-base alloy,titanium alloy.
Carbon steel: ASTM A234 WPB,ASTM A234 WPC,ASTM A420 WPL6,MSS SP-75 WPHY42,WPHY52,WPHY60,WPHY65,WPHY70,S235,S355,ST37.2,SS400,GOST CT20,etc.
Stainless steel: ASTM A403,ASTM A312,WP304,WP304L,WP316,WP316L,etc.
Alloy steel: ASTM A234 WP1,WP5,WP9,WP11,WP22,WP91,ASTM A860 WPL6,etc.
Standards of butt welding pipe fittings:
Our Haihao Group can manufacture butt welding pipe fittings as per all these standards as follows:
ANSI/ASME standard:
- ANSI/ASME B16.9-Factory made wrought steel butt welding fittings,inculdes elbows,tees,reducers,caps dimensions.
- ANSI/ASME B16.28-Wrought steel butt weld;short radius elbows and return.
DIN EN standard:
- DIN EN 10253-Butt welding pipe fittings,elbows,return bends,concentric and eccentric reducers,equal and reducing tees,and caps.
GOST standard:
- GOST 17375-Carbon and low-alloy steel butt-welding fittings,elbow
- GOST 17376-Carbon and low-alloy steel butt-welding fittings,tee
- GOST 17378-Carbon and low-alloy steel butt-welding fittings,reducer
- GOST 17379-Carbon and low-alloy steel butt-welding fittings,cap
- GOST 17380-Carbon and low-alloy steel butt-welding fittings General specifications
- GOST 30753-Carbon and low-alloy steel butt-welding fittings sharply curved bends type 2D (R=DN) Design
JIS standard:
- JIS B2311-Steel butt welding pipe fittings for ordinary use.
- JIS B2312-Steel butt welding pipe fittings
- JIS B2313-Steel plate butt welding pipe fittings
KS standard:
- KS B1522-Steel butt welding pipe fittings for ordinary use and Fuel Gas.
- KS B1541-Steel butt welding pipe fittings.
- KS B1543-Steel plate butt welding pipe fittings.
MSS standard:
- MSS SP-43-Wrought stainless steel butt welding fittings.
- MSS SP-75-Specification for high test wrought butt welding fittings.
Chinese standard:
- GB/T 12459
- GB/T 13401
- SH/T 3408
- HGJ528
- SY/T0510
Advantages of butt welding pipe fittings:
- Comparing to other types of steel pipe fittings,butt welding pipe fittings has advantages:
- Butt welding joint is permanently leakproof and strong.
- Continuous steel structure of the joints between the pipes and fittings have a good strength in the piping system.
- The butt welding pipe fittings commonly have a smooth surface and gradual directional changes,it will decrease the pressure losses and turblence of the system,and protect from the corrosion and erosion.
- The butt welding pipe fittings have a lower cost in bugdet.
- The butt welding joints have a smaller space in the system.
Haihao Group has a more than 30 years experience in production of all types butt welding pipe fittings,our pipe fitting factory has professional facility and technical team for the butt welding elbows,tee,reducers and other fittings.Haihao Group butt welding pipe fittings are used in varied industry piping systems and applications.If you have any requirements about the butt welding pipe fittings,welcome to contact us.Email:sales@haihaogroup.com