Piping drawing methods: In which type of piping drawing may vertical pipes be revolved into the horizontal plane to show true lengths and facilitate measurement?

Introduction / Context:
Different piping drawing methods prioritize clarity for fabrication, takeoff, and coordination. Developing a layout onto a common plane allows lengths to be shown true and simplifies dimensioning and material takeoff.

Given Data / Assumptions:

• We need a drawing approach that rotates (revolves) vertical runs into a single plane.
• The goal is to show true lengths and ease measuring.
• Used in sheet metal and piping to “develop” the system onto a flat plane.

Concept / Approach:
A developed piping drawing rotates portions of the system (for example, vertical risers) into the horizontal plane so that all runs can be represented in one plane without foreshortening. This is analogous to developments in sheet metal where curved or angled surfaces are unfolded for true-size patterns.

Step-by-Step Solution:

Verification / Alternative check:
Check that measured lengths on the developed drawing match actual centerline distances, confirming that foreshortening has been removed.

Why Other Options Are Wrong:

• Standard view / Elevation view: Do not revolve vertical pipes into the horizontal plane; they retain their native orientation.
• Transverse piping: Not a standard drawing method for development; term is ambiguous.

Common Pitfalls:
Forgetting to maintain consistent rotation references, which can misplace fittings when translating back to field installation.

Final Answer:
Developed piping