Rules Tab (Pipe Properties Dialog Box)

Use this tab to view or change the rule set or rule values associated with this pipe.

Rule Set

This drop-down list lets you specify the rule set for the pipe.

Use Values From Rule Set

This option lets you choose to override or accept the rule values as they are defined in the specified rule set. If you clear this check box, you can edit the rule values on this dialog box, and the pipe uses the rule values as they are specified on this dialog box. If this option is selected, the pipe uses the rule values as they are defined in the specified rule set, and those values display on this dialog box.

Cover And Gradient

This rule ensures that a pipe gradients appropriately and warns when a pipe is placed too close to a ground surface.

Maximum Cover

Specifies the maximum cover of soil over the length of the pipe, based on the surface being referenced by that pipe. If the maximum cover is exceeded, a rule violation occurs. Note that this parameter provides validation only; it does not alter (move or resize) the part in the drawing in any way. It simply produces a rule violation on the part if the specified value is exceeded.

Maximum Gradient

Specifies the maximum gradient of the pipe, expressed in percent. If the pipe gradient is greater than the maximum, a rule violation occurs for that object.

Minimum Cover

Specifies the minimum cover of soil over the pipe, based on the surface being referenced by that pipe. During layout, a pipe will be created that attempts to maintain the minimum cover. This is also used to determine the initial levels of the pipe. If the pipe is edited so that its cover is less than the minimum cover value, a rule violation occurs for that object.

Minimum Gradient

Specifies the minimum gradient of the pipe, expressed in percent. During layout, a pipe will be created according to its minimum gradient rule value. If the pipe is edited so that its gradient is less than the minimum, you can still edit the pipe as desired, breaking the minimum gradient rule, but a rule violation occurs for that object.

Cover Only

This rule is intended for laying out pipes in a pressure-based pipe network where pipe levels are determined according to a specified depth below a terrain. This rule ensures that the minimum cover is met along the length of the pipe, and also validates that both the minimum and maximum cover values are not violated along any length of the pipe.

Maximum Cover

This is the maximum cover of soil over the pipe, based on the surface being referenced by that pipe. If the pipe cover exceeds the maximum cover value, a rule violation occurs for that object. Note that this parameter provides validation only; it does not alter (move or resize) the part in the drawing in any way. It simply produces a rule violation on the part if the specified value is exceeded.

Minimum Cover

This rule represents the minimum cover of soil over the pipe, based on the surface being referenced by that pipe. During layout, a pipe will be created that attempts to maintain the minimum cover. If the pipe is edited so that its cover is less than the minimum cover value, a rule violation occurs for that object.

Length Check

This rule governs the behavior that produces a warning condition on a pipe if the pipe length exceeds the value specified for the maximum pipe length, or is less than the value specified for the minimum pipe length.

Maximum Length

Specifies a maximum length for pipes. When this rule is in use, you can still draw pipes that exceed the defined maximum pipe length. However, the object will be displayed with a warning icon in the Prospector list view. Note that this parameter provides validation only; it does not alter (move or resize) the part in the drawing in any way. It simply produces a rule violation on the part if the specified value is exceeded.

Minimum Length

Specifies a minimum length for pipes. When this rule is in use, you can still draw pipes that are shorter than the defined minimum pipe length. However, the object will be displayed with a warning icon in the Prospector list view. Note that this parameter provides validation only; it does not alter (move or resize) the part in the drawing in any way. It simply produces a rule violation on the part if the specified value is not met.

Pipe To Pipe Match

This rule governs how a pipe level is determined in a pipe network that contains only pipes (no structures), and or when a pipe is inserted onto an existing pipe to break the pipe.

Match Location

This parameter controls whether the inserted pipe holds to the pipe’s invert, soffit, or centerline level (location).

Drop Value

The drop value on a structure can determine a pipe’s depth.