Explore top-quality Duplex Stainless Steel BL Flanges from a trusted supplier offering ASTM A182 F51, ASTM A182 F53, and ASTM A182 F55 grades. Available in 8 inches, DN200 size, with Class 150 LB and PN20 ratings according to ASME B16.5 standards. Featuring a reliable RF end for enhanced performance in diverse industrial applications.