A Large Diameter Flange refers to a flange whose dimensions exceed the standard size ranges specified in common national standards. These are custom-engineered components, typically for DN2000 and larger connections. As a Large Diameter Flange cannot be manufactured by standard threading methods, it is exclusively produced via welding processes such as rolling and welding plates or forging, strictly following detailed customer-supplied drawings to meet specific project requirements for pressure, temperature, and fit.
Product Parameters
|
Size Range |
Custom sizes, generally from DN2000 and upwards. |
|
Pressure Class |
Designed per project specs; standard pressure tables typically cap at lower diameters. |
|
Connection Type |
Welded only. |
|
Manufacturing Process |
Plate rolling and welding, forging. |
|
Common Standards |
Referenced from GB/T, ASME, EN, etc., but dimensions are custom. |
|
Inspection |
Welds typically require Non-Destructive Testing |
Features
Characterized by custom engineering and precision fabrication for outsized applications. Key strengths include the capability for production to exact client specifications from detailed drawings. For dimensions where forging is impractical, precision plate rolling and automated welding ensure structural consistency and integrity.
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