Pressure Vessel Low-poly 3D model is available on CGTrader for $25. Original author: bubercreative.
SLDPRT (SolidWorks, filesize: 3.97 MB), DWG (AutoCAD, filesize: 3.97 MB), C4D (Cinema 4D, filesize: 3.97 MB), BLEND (Blender, filesize: 3.97 MB), FBX (Autodesk FBX, filesize: 3.97 MB), DXF (DXF, filesize: 3.97 MB), STP (STEP, filesize: 3.97 MB), SKP (Sketchup, filesize: 3.97 MB)