Lap Joint Flanges

Lap Joint Flanges must be used with their associated stub end. The stub is welded to the pipe and the Lap Joint then works as a backing ring. The main advantage of this type of flange is that the bolt holes can be aligned with the matching flange after the welds have been completed. A Lap Joint Flange is not suitable for areas with high external or dynamic loads. A Swivel Ring Flange should be used for this type of application.  

• Size: 1/2”-60”
• Design Standard: ANSI, JIS, DIN, BS
• Material: Carbon Steel (ASTM A105, Q235¡ê?20Mn)
                  Stainless Steel (ASTM A182 F304/304L, F316/316L,F321)
                  Alloy Steel (ASTM A182F1, F2, F5/A, F6/A, F9, F11, F12,F22, F91)
• Normal Pressure: CLASS 150, CLASS 300, CLASS 600, CLASS 900,CLASS 1500, CLASS 2500, CLASS 3000
• Face Type: F.F., R.F., R.T.J.,M.F.,T.G.