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Standard Summary Of Butt Welded Flange

Common standards for welded flange include: national standard GB machine standard JB chemical HG petrochemical HG. GB/T 9112 - 2000 steel pipe flange type and parameters of GB/T 9113.1 - 2000 plane, sudden surface integral steel pipe flanges GB/T 9113.2 - 2000 integral steel pipe flanges with male GB/T 9113.3 - 2000 groove integral steel pipe flanges GB/T 9113.4 - 2000 ring joint face integral steel pipe flanges GB/T 9114 - 2000 process a neck screw steel pipe flanges GB/T 9115.1 - 2000 plane, facing the process of welding steel pipe flanges GB/T 9115.2 - 2000 convex face welding steel pipe flanges with tongue and groove face 2000 GB/T 9115.3 welding steel pipe flanges GB/T 9115.4 - 2000 ring joint face welding steel pipe flanges GB/T 91l6.l a 2000 plane, raised face neck welding steel pipe flanges GB/T 9116.2 - 2000 convex surface hubbed steel pipe flanges GB/T 9116.3 - 2000 tongue and groove face neck welding steel pipe flanges GB/T 9116.4 - 2000 with a neck ring joint welding steel pipe flanges GB/T 9117.1- 2000 hubbed socket welding steel pipe flanges GB/T 9117.2 - 2000 concave and convex hubbed socket welding steel pipe flanges GB/T 9117.3 - 2000 groove hubbed socket welding steel pipe flanges GB/T 9117.4 - 2000 ring connection hubbed socket welding steel pipe flanges with raised face welding GB/T 9118.1 - 2000 ring neck loose steel pipe flanges GB/T 9118.2 - 2000 ring joint face welding neck ring loose steel pipe flanges GB/T 9119 - 2000 plane, raised face plate welding steel pipe flanges GB/T 9120.1 - 2000 ring raised face loose plate steel pipe flanges GB/T 9120.2 - 2000 raised face loose plate steel welding ring GB/T 9120.3 - 2000 pipe flanges with tongue and groove face welding ring loose plate steel pipe flanges GB/T 9121.1 - 2000 flat ring raised face loose plate steel pipe flanges GB/T 9121.2 - 2000 convex surface flat ring loose plate steel pipe flanges with tongue and groove face GB/T 9121.3 - 2000 Flat ring loose plate steel pipe flanges GB/T 9122 - 2000 flange ring loose plate steel pipe flanges GB/T 9123.1 - 2000 plane, raised face steel pipe flanges Common standards for welded flange include: national standard GB machine standard JB chemical HG petrochemical HG. GB/T 9112 - 2000 steel pipe flange type and parameters of GB/T 9113.1 - 2000 plane, sudden surface integral steel pipe flanges GB/T 9113.2 - 2000 integral steel pipe flanges with male GB/T 9113.3 - 2000 groove integral steel pipe flanges GB/T 9113.4 - 2000 ring joint face integral steel pipe flanges GB/T 9114 - 2000 process a neck screw steel pipe flanges GB/T 9115.1 - 2000 plane, facing the process of welding steel pipe flanges GB/T 9115.2 - 2000 convex face welding steel pipe flanges with tongue and groove face 2000 GB/T 9115.3 welding steel pipe flanges GB/T 9115.4 - 2000 ring joint face welding steel pipe flanges GB/T 91l6.l a 2000 plane, raised face neck welding steel pipe flanges GB/T 9116.2 - 2000 convex surface hubbed steel pipe flanges GB/T 9116.3 - 2000 tongue and groove face neck welding steel pipe flanges GB/T 9116.4 - 2000 with a neck ring joint welding steel pipe flanges GB/T 9117.1- 2000 hubbed socket welding steel pipe flanges GB/T 9117.2 - 2000 concave and convex hubbed socket welding steel pipe flanges GB/T 9117.3 - 2000 groove hubbed socket welding steel pipe flanges GB/T 9117.4 - 2000 ring connection hubbed socket welding steel pipe flanges  with raised face welding GB/T 9118.1 - 2000 ring neck loose steel pipe flanges GB/T 9118.2 - 2000 ring joint face welding neck ring loose steel pipe flanges GB/T 9119 - 2000 plane, raised face plate welding steel pipe flanges GB/T 9120.1 - 2000 ring raised face loose plate steel pipe flanges GB/T 9120.2 - 2000 raised face loose plate steel welding ring GB/T 9120.3 - 2000 pipe flanges with tongue and groove face welding ring loose plate steel pipe flanges GB/T 9121.1 - 2000 flat ring raised face loose plate steel pipe flanges GB/T 9121.2 - 2000 convex surface flat ring loose plate steel pipe flanges with tongue and groove face GB/T 9121.3 - 2000 Flat ring loose plate steel pipe flanges GB/T 9122 - 2000 flange ring loose plate steel pipe flanges GB/T 9123.1 - 2000 plane, raised face steel pipe flanges