The Size Reduction Rule Per Spec (the SizeReductionPerSpec sheet in the Sample Data Piping Specification.xls workbook) is an optional rule that defines the permissible size reductions for both concentric and eccentric reducers. For example, you might define rules that a 8"X4" size reduction is to use a single 8"X4" reducer, while a 6"X2" size reduction is to use a 6"X4" reducer and a 4"X2" reducer. You can also specify your preference for a size reduction when more than one solution is available. The information defined on this sheet is the exceptions per piping materials class to the size reduction information defined on the Size Reduction Rule.

First Size (Required)

Enter the first size of the size reduction to define.

First Size Units (Required)

Enter the units, mm or in for example, for the value you entered in the First Size column.

Fitting 2 First Size (Required)

Enter the first size for the second reduction fitting.

Fitting 2 First Size Units (Required)

Enter the units, mm or in for example, for the value you entered in the Fitting 2 First Size column.

Fitting 3 First Size (Optional)

Enter the first size for the third reduction fitting.

Fitting 3 First Size Units (Optional)

Enter the units, mm or in for example, for the value you entered in the Fitting 3 First Size column.

Fitting 4 First Size (Optional)

Enter the first size for the four reduction fitting.

Fitting 4 First Size Units (Optional)

Enter the units, mm or in for example, for the value you entered in the Fitting 4 First Size column.

Second Size (Required)

Enter the second size of the size reduction to define.

Second Size Units (Required)

Enter the units, mm or in for example, for the value you entered in the Second Size column.

Size Reduction Type (Required)

Enter a 1 if the size reduction rule you are defining is for concentric reducers. Enter a 2 if the size reduction rule is for eccentric reducers.

Size Reduction Preference (Optional)

Enter a number between 1 and 4 to indicate your solution preference order when more than one size reduction solution is defined. For example, a 24"x6" reduction can be done using a 24"x14" and a 14"x6", using a 24"x12" and a 12"x6", or using a 24"x10" and a 10"x6". Enter 1 as the default preference, enter 2 for your second choice, and so on.

Spec Name (Required)

Type the name of the piping material class for which you are defining the size reduction information. The piping materials class that you enter must be defined on the Piping Materials Classes.