TJ-437-003 TLI Installation Modifications.pdf

This is a technical drawing document for a Tank Level Indicator System with piping modifications for a naval vessel operated by the National Oceanic and Atmospheric Administration (NOAA). The drawing provides comprehensive ship modification specifications including general notes, material lists, dimensional tolerances, and detailed installation schematics.

The document outlines modifications to an existing tank level indicator system and associated piping infrastructure. Key specifications include the removal and installation of various tanks (diesel oil tanks, ballast tanks, grey water tanks, and potable water tanks) with detailed sectional views showing pipe routing, flange connections, and support structures. The drawing encompasses 104 separate sections with multiple partial plan views demonstrating tank placement and interconnections across different deck levels. Material specifications require stainless steel and carbon steel construction with specific pipe sizing ranging from 1-1/2 inches to 4 inches in diameter. Installation requirements emphasize watertight integrity testing, proper support mounting per NOAA standards, and compliance with American Bureau of Shipping (ABS) guidelines. The document references multiple revision standards and indicates applicability to specific ship classes, with detailed dimensional tolerances and installation notes provided throughout to ensure proper shipboard integration and operational safety of the tank monitoring system.