Piping > Setting Up Piping Library > Bend Tables > Conversion Equations
Conversion Equations
The conversion equation tells the system how table data (A) is related to the developed length (L). If no conversion equation is defined, the system assumes that the table data equals the required length (L = A). For example, if the table data represents the bend deduction value, the equation might look like the following:
L = 2*(T + R) - A
* L must never be negative.
Conversion Equation Variables
You can use the following variables in a conversion equation:
L—Developed straight length of stock.
R—Bend radius.
T—Material thickness.
ANGLE—Bend Angle (in degrees).
A—Bend allowance value contained in the table data section.
Conversion Equation Rules
Follow these rules when you enter the conversion equation in a bend table:
Only use a conversion equation when the developed length L is not equal to your table values A.
The conversion must begin with the descriptor CONVERSION, in the first column.
If the equation is a simple one, then it can be written in the second column on the same line as the descriptor, as in this example:
If the formula is more complex and/or contains some logic statements, then the CONVERSION descriptor must precede the actual formula on its own line and the formula must be concluded by the descriptor END CONVERSION, again on its own line and in the first column.