Controls the following functions:
-
Dimensions to the center point of valves and straight through instruments, selectively based upon bore. Works in conjunction with Option Switch 80, which operates on end type.
-
Undimensioned branch legs, selectively based upon bore and/or on the number of components in the branch.
Switch Settings
The following settings are available for Option Switch 81:
SWITCH POSITIONS 1, 2, and 3 - Dimensions to the Center Point of Valves and Straight Through Instruments
|
0 |
Dimension valves and instruments whose end points set by Option Switch 80 to their center point. This is the default setting. |
|
Value |
Dimension valves and instruments whose end points are set by Option Switch 80 and that have a bore less than or equal to the specified value to their center point. You must specify a Value in 1/16 inches or millimeters, depending upon the bore units. |
SWITCH POSITION 4, 5, and 6 - Branches within Specified Bore Range to be Undimensioned
|
0 |
Dimension all branches. This is the default setting. |
|
Value |
Suppress dimensions for all branches that have a bore less than or equal to the specified value. You must specify a Value in 1/16 inches or millimeters, depending upon the bore units. |
SWITCH POSITION 7 and 8 - Branches with a Specified Number of Components to be Undimensioned
|
0 |
Dimension all branches. This is the default setting. |
|
Value |
Suppress dimensions for branches that have a number of components less than or equal to the specified Value. Gasket and bolt entries are counted as components. |
SWITCH POSITION 9 - Tee and Tapped Branch Dimensioning Method
|
0 |
Dimension tee and tap branches as normal. |
|
1 |
Output AText EOP with associated dimension for tap branch dimensions. This is typically used when you define the start of the tap branch that is not at the intersection point. |
|
2 |
Output AText EOP and associated dimension for tee and tap branch dimensions. All set-on type branches and tap points have been designed where the branch start points are not at the intersection points. |
-
Dimensioning behavior of switch positions 4, 5, & 6 and 7 & 8 is conditional on the setting that you have defined for switch 121. For more information, see Option Switch 121: Tapping (Branch Dimensions).
-
Any branch containing pipe (100 record), fixed length pipe (101 record), or pipe block (103 record) will not have branch dimension suppression applied to it.
-
Branch dimension suppression using this option switch does not apply to tapped branches.
-
Depending on your specific requirements, switch positions 4, 5, & 6 and 7 & 8 can work independently of or in conjunction with each other.
-
Switch position 9, setting 2 does not include olet type branches.
Switch Layout
|
Related Program Development Specifications |
Version |
Date |
|
Introduced |
1.0.0 |
APR 1983 |
|
Dev. No. 59 - Dimensioning Upgrade |
7.0.0 |
OCT 1994 |
|
Related Option Switches |
||
|
Option Switch Detail Sketch |
||