... welding neck flanges Welding Neck Flanges, Slip on Flanges, Threaded Flanges, Socket Welding Flanges, Blind Flanges, Orifice Flanges, Lap Joint Flanges, Ring Joint Flanges, Long Welding Neck Flanges, Figure 8 ... .range ½” (15 NB) to 64” (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 2.5 ,6,10 ...