ANSI B16.5 Flanges Weld Neck, Slip-On, Socket Weld, Threaded, Lap Joint, Blind. 1/2" - 24" Class 150, Class 300, Class 400,Class 600,Class 900,Class 1500,Class 2500. http://www.rjsales.com/products/ansi_asme_flanges/index.html. ANSI B16.47 Flanges Weld Neck, Slip-On, Blind. Class 75 - Ser. B Class 75 - Slip-On, Ind. Standard Class 75 - Weld Neck, Ind. Standard Class 125 - LW, AWWA C207 Class B, D
. Class 125 - LW, AWWA C207 Class E Class 150 - Weld Neck, Ser. A Class 150 - Weld Neck, Ser. B Class 175 - Ind. Standard Class 300 - Weld Neck & Blind Ser. A Class 300 - Weld Neck & Blind Ser. B Class 350 - Weld Neck, Slip-On Ind. Standard Class 400 - Ser. A & B Class 600 - Ser. A & B Class 900 - Ser. A & B Oriface Flanges Weld Neck, Slip-On, Threaded. Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500.
