Developed piping drawings: Can horizontal pipe runs be revolved into the vertical plane (development) so the entire installation is represented on a single plane for clarity and dimensioning?

Introduction / Context:
Complex piping layouts can be difficult to convey in a single orthographic view. A developed piping drawing rotates (revolves) pipe segments that lie in other planes into the plane of projection. This simplifies visualization and allows the entire system to be shown on one plane, aiding fabrication and installation while keeping centerline lengths and fittings legible.

Given Data / Assumptions:

• The goal is clarity of routing, fittings, and dimensions.
• Revolution is a graphical device; true spatial orientation is documented through notes and view references if needed.
• Dimensioning conventions ensure that developed lengths and offsets are still correct.

Concept / Approach:
Development rotates pipe runs about axes so they appear in the selected plane. The designer preserves true lengths along centerlines and indicates direction changes with conventional symbols. This method is common for shop drawings where a single developed view improves fabrication efficiency and reduces interpretation errors compared with juggling multiple orthographic views.

Step-by-Step Solution:

Verification / Alternative check:
Cross-check developed distances with isometric or 3D model data. Fabrication fits and field installation success validate the approach’s accuracy.

Why Other Options Are Wrong:
Limiting development to ducts, isometric sheets, or small pipes is incorrect; development is a drafting technique, not a size- or medium-restricted rule.

Common Pitfalls:
Losing track of elevation changes; omitting rotation notes; confusing true length with projected length; mislabeling fitting orientations after rotation.

Final Answer:
Correct