[PDF FILE] Introduction to Piping Engineering | PIPING GUIDE Here's a presentation on piping engineering in PDF format, now available for all. This presentation covers the basics points of piping, which are meant for those persons who [PDF] PROJECT STANDARDS AND SPECIFICATIONS piping design 2. Detail Engineering Design Layout for erection and Detailed Piping Drawings for construction shall be produced during this stage. Detail design of piping shall include but not limited to the following: - Final (detailed) P&ID (Piping & Instrument Diagram). - General plot plan. - Unit plot plan or equipment layout. - Above ground piping layout.