Threaded Flanges

Threaded Flanges can be fitted to the pipe without welding, though a seal weld can sometimes be used. They are suitable for small diameter high pressure services. At larger diameters, the difficulty in machining the thread on to both the flange and pipe makes them unviable. They are also not suitable for areas having high external loads, particularly torsion. 

• Size: 1/2”-60”
• Design Standard: ANSI, JIS, DIN, BS
• Material: Carbon Steel (ASTM A105, Q235，20Mn)
                  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.