The detail for ASME B16.5 standard covers both Steel Line Flanges as well as Flanged Fittings. The size of the ASTM A182 SS Male and Female Flanges shrouded in this particular reaches from NPS 1/2 inch up to NPS 24 Measurement/Inch. While the tension rating canvassed in the ASME B16.5 Male and Female Flanges goes from pressure class 150 to class 2500. Further the ANSI B16.5 Male and F... https://ganpatmetal.com/male-and-female-flanges-manufratures-expoters-suppliers-stockists.html