Pipe flanges, gaskets, and fasteners are collectively referred to as flange joints. Flange joint is a kind of component which is widely used in engineering design. It is an indispensable part of piping design, pipe fittings and valves, and it is also an essential component in equipment and equipment parts (such as manholes, sight glass level gauges, etc.). In addition, it is also often used in other professions such as industrial furnaces, thermal engineering, water supply and drainage, heating and ventilation, automatic control, etc.
Materials：304, 304L, 304H, 304N, 310, 310S, 316, 316L, 316H, 317, 317L, 321, 321H, 347, 347H, 904L, S31803, S32205, S32304, S32750, S32760
Varieties：Flat Welding Flange, Neck Flange, Butt Welding Flange, Ring Connection Flange, Socket Flange, Blind Flange, etc.
Executive standards: GB series (national standard), JB series (mechanical department), HG series (chemical), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard).