We make 3D models of piping system based on the information of basic design (piping diagram arrangement drawing). In the engine room it includes not only pipe but also other machinery equipment such as pipe support, ventilation duct, floor, handrail...etc. In addition, all pipe fittings is also modeled: valve, pump, strainer, gauge...etc. We use 3D model for interference checking, adjusting the original design, producing detailed fabrication drawings, installation drawings, pipe spool drawings, exporting equipment lists, material lists. Besides the 3D model is intended for ship owners to review and use to assist shipyard in the installation process.