stainless steel floor flange (chemical standard HG20592, national standard GB/T9119, mechanical JB/T81).

advantage:
Easy to take, simple to manufacture, low cost, widely used

Disadvantages:

The rigidity is poor, so it should not be used in chemical process piping systems with high supply and demand, flammability, explosive and high vacuum requirements.

The sealing surface type has a flat surface and a convex surface.

Pipe flanges and their gaskets and fasteners are collectively referred to as flange joints.

application:

Flange joints are a very common and widely used component in engineering design. It is an indispensable part of piping design and pipe fittings, and it is also an essential component in equipment and equipment parts (such as manholes, sight glass level gauges, etc.). In addition, other professional industries such as industrial furnaces, thermal engineering, water supply and drainage, heating and ventilation, and self-control, etc., often use flange joints.

Material:

Forged steel, WCB carbon steel, stainless steel, 316L, 316, 304L, 304, 321, chromium-molybdenum steel, chromium-molybdenum-vanadium steel, molybdenum-titanium, rubber-lined, lining fluorine material.

classification:

Flat welding flanges, neck flanges, butt weld flanges, ring connection flanges, socket flanges, and blind plates.

Implementation criteria:

There are GB series (national standard), JB series (mechanical department), HG series (Ministry of Chemical Industry), ASME B16.5 (American standard), BS4504 (British standard), DIN (German standard), JIS (Japanese standard).

International Pipe Flange Standard System:

There are two main systems for the international pipe flange standard, namely the European pipe flange system represented by German DIN (including the former Soviet Union) and the American pipe flange system represented by the American ANSI pipe flange.