Fabrication isometric for 12″ NB vent lines on the Valaris DS-4 project (Leg 4). Covers spools 1, 2, & 3 with all primary dimensions in mm. Includes fabrication notes like 100% NDT CVI & MPI inspection and a galvanised finish spec. You’ve got weld tags (F2, B3, G4), pipe segments, and clear orientation indicators.Includes the title block, revision history, and sheet info. etc.
12″ NB Vent Line Fabrication Isometric DWG – Spools 1, 2 & 3
