ASTM A182 Standard Specification
ASTM A182 / A182M – 12a Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service. ASTM A182 is a martensitic...
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Duwa Release new products: Union (FTH X SW and MTH X SW)
Duwa Release new products: Union (FTH X SW and MTH X SW) Material: ASTM A105 Connection: FTH X SW and MTH X SW Size: 1 Inch
ANSI B16.5 Class 150 flanges Dimensions
ANSI B16.5 Class 150 Welding Neck Flanges These flanges will be furnished with a 1/16" raised face unless otherwise specified. Flat face option available. Standard Bore will be furnished unless...
Duwa release new Products Block Board
Duwa release new products Block Board acc.to project drawing.The products are delivered to site in 7days.Our customer is very satisfied with our products. Duwa also can produce other flanges,and deliver...
Butt Weld Pipe Fittings ANSI B16.9 Tolerance
Butt Weld Pipe Fittings ANSI B16.9 Tolerance All Fittings[Note(1) and (2)] Center-to-End Diamensions Overall Length of Reducers and Lap Joint Stub Ends,F,H Overall Length of Caps, E 180-deg Returns...
Pipe Flange Standards-ANSI/ASME/BS/EN/JIS/GOST/DIN/GB Flange
Pipe Flange Standards mainly include three systems in the world, ANSI/ASME flange system(American), DIN flange system(European system), JIS flange system, other system made according to this three systems,...
Applications of Weld Neck Flange
A weld neck flange consists of a circular fitting with a protruding rim around the circumference, and it is connected with pipe by welding neck. Weld neck flange is not easy to cause deformation, with...
Tube China Fair 2016 & Orders of Welded Pipe Fittings
The All-China International Tube & Pipe Industry Trade Fair was held from 25th to 29th, September 2016. Exhibitors from 22 countries, and more than 200000 visitors took part in the fair. DUWA PIPING...
DUWA PIPING Introduced Automatic Surface Welding Robot
In early 2016, DUWA PIPING purchased welding robot to help to open the thick-walled ASME B16.9 pipe fittings market, providing a strong equipment support. In recent years, DUWA PIPING is committed to...