... SP44ANSI B16.36 ANSI B16.48Types: Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, ... DIN2633,DIN2634,DIN2635,DIN2636,DIN2637 DIN2638,DIN2673Types: Welding neck FflangesSlip on FlangesThreaded FlangesSocket Welding Flanges, Blind FlangesPRESSURE GRADE: ... ); TYPE5(Blank Flanges); TYPE11(Weld-neck Flanges); TYPE12(Hubbed Slip-on Flanges For Welding); TYPE13(Hubbed Threaded ...