1.DIN carbon steel flanges Material:Rst37.2,St37.2,C22.8)DIN2573 PN6;DIN2576 PN10,DIN2502 PN16,DIN2503 PN25 ,PN40,DIN2566 PN10&PN16,DIN2631 PN6,DIN2632 PN10.DIN2633 PN16,DIN2634 PN25,DIN2635 PN40,DIN2636 PN64,DIN2637 PN100,DIN2638 PN160,
2.ANSI B16.5
carbon steel forged flanges,(Material A105,Q235)150LB,300LB,400LB,600LB,900LB,1500LB,2500LB WNRF,WNFF,SORF,SOFF,THRF,SWRF,LJRF
flanges
High welding neck flange, welding neck flange is commonly referred to as the "hub" of the flange. Its purpose is to transfer pressure pipeline, thereby reducing the flange base high stress concentration. Neck flange butt welding is one of the best design that are currently provide
flange because of its structural value itself exists. But the price is relatively high, the reason is the product of the production process complicated.