This is prepared with the help of the material control group. It must be done early enough to ensure that the procurement of the piping materials could fit the project schedule. It may include the piping design done on 3D modeling software or 2D software. When there is significant progress on the piping design, The secondary MTO is prepared. Highlight each line on the P&ID as you complete the above process, that will help in identifying the undone lines.Now, go to the next line and repeat the same procedure.Enter the detail of the piping components in the MTO sheet following the sequence of the component, you can refer to fig.Estimate the Hight-point vent and low-point drain as per your guess and experiences.Identify the numbers of the valve from the P&ID directly.The size of the drawing is 420 mm wide and 297 mm high for Metric Units and 17' wide and 11' high for Foot-Inch Units. A drawing with all default values properly set, is set-up automatically. (length of the pipe and number of Elbows are not fixed at this stage of MTO). SETUP: To draw an Isometric Drawing, first run this option from ISO button menu and select North Direction.

From the line routed on the plot plan, identify the approximate pipe length and estimate the numbers of fittings like elbows, tees, reducers, flanges, etc, and grouped them size-wise.Identify the potential line routing of each line shown on the P&ID and route the line on the plot plan (we can also refer to a similar old project for reference.CAD blocks and files can be downloaded in the formats DWG, RFA, IPT, F3D. On the MTO sheet, enter the line number, line class, and line size. CAD/BIM Library of blocks 'piping isometric' Free CAD+BIM Blocks, Models, Symbols and Details Free CAD and BIM blocks library - content for AutoCAD, AutoCAD LT, Revit, Inventor, Fusion 360 and other 2D and 3D CAD applications by Autodesk.Identify the numbers of lines, line classes/specs, and the line size from the P&ID.PMS (Piping Material Specification) Steps for Preliminary MTO Preparation.Bidding of the material/ Request for quotation (RFQ) Documents required for Preliminary MTO are.

Piping isometric drawing pdf