... Socket Welding Flange, Blind Flange, OrificeFlange, Ring Joint Flanges, Long Welding Neck Flange, Figure 8 Blanks Wall ThicknessSch10 , Sch20 , ... sewage work Flange Facing TypesRaised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male ... , Small Tongue & Groove Connection TypeRaised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female ...