... ANSI B16.48Types: Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint ... (111/134), Hubbed Slip on Flanges(112) ,Hubbed Threaded Flanges(113),Lapped Pipeend FlangesE(133), Plate Flanges(101), ... TYPE12(Hubbed Slip-on Flanges For Welding); TYPE13(Hubbed Threaded Flanges)Pressure ClassPN2.5PN6PN10PN16PN25PN40PN63PN100SIZE: 1/2" TO 48"6 ...