Using NextGen it is possible to design and calculate flanges; these components can be calculated in two different ways:
One thing to keep in mind is that each calculation code declares which flanges standard can be adopted using the first option when used within a project: this means that a flange can be considered standard only when used within a compatible calculation code. It is not possible for example to use ANSI flanges by their rating within an EN13445 project; similarly, an EN1092-1 or EN 1759-1 flange can't be used by its rating in an ASME project, even if EN 1759-1 flanges have basically the same dimensions as ANSI B16.
The following table shows how standard flanges are calculated when adopted in each calculation code supported by NextGen:
This applies to flanges selected from databases available in our software when "standard flange" option is checked:
Bolting validation is carried on only when explicitly required by the reference standard (e.g., bolts made of an "intermediate strength" material in ANSI B16.5).
Note: it is perfectly normal and very common to receive validation errors when calculating a standard flange according to a calculation code.
Calculation report of a standard flange is pretty simple; note the "maximum pressure allowed by specification" value.