TJ-551-002A_Compressed Air System Piping Diagram Modification As Built.pdf

This document is a technical piping diagram and materials list for compressed air system modifications to be installed on a naval vessel. The drawing provides detailed specifications for piping components, including fittings, valves, pressure relief systems, and related equipment required for the compressed air system installation.

The materials list (columns 1-8 on page 1) specifies 80 line items with details including item numbers, quantities, part descriptions, ASTM standards, materials (primarily steel and bronze), and notes. Key components include various pipe fittings (ranging from 1/4" to 2" diameters), ball valves, check valves, relief valves, elbows, unions, and bushings. The specifications reference ASTM 451 (seamless copper nickel pipe), ASTM 36 (wrought steel), ASTM 875 (copper), and ASTM AIN (steel fittings). Special equipment listed includes an air receiver, compressor, and associated piping modifications. The two subsequent pages contain detailed engineering drawings with elevations, sections, and plan views showing the layout and interconnection of these components within the compressed air system. The document is identified as being prepared for the National Oceanic and Atmospheric Administration's Office of Marine and Aviation Operations, with drawing references TJ-501-002 and sheet 1 of 2 indicated in the revision block.