... -On, Screwed, Socket Welding, Lap Joint, Blind, PlateFlange FacingRaised Face, Flat Face, Lapped Joint Face, Large Male-Female, Small Male-Female ... , Large Tongue & Groove, Small Tongue & Groove, Ring Joint Standard125 Lb, 150 Lb, 300 Lb, 600 Lb, 900 Lb, 1500 Lb, 2500 ... ½" NB to 48 "NBMakeManufacturer & As per design & Specification ANSI Blind flange