175-WLM_528_1_1_-_F.pdf

This is a detailed plumbing and interior deck drains engineering diagram for a U.S. Coast Guard vessel, consisting of multiple sheets showing material schedules, system design requirements, equipment lists, flow data, and detailed installation plans. The drawings include specifications for condensate drains, special fittings, instruments, and major equipment configurations.

The diagrams provide comprehensive deck-by-deck plumbing layouts showing locations of drains, vents, clean-outs, and associated piping systems across multiple hull blocks (HB 901-970). Key technical details include pipe sizes, flow requirements, drain specifications, and installation requirements for items like grease interceptors, cleanout fittings, and tank vents. The drawings contain multiple detail views showing specific drain configurations, penetration sleeves, and drain connections, along with general notes covering installation requirements, material specifications, and testing procedures. This appears to be part of a larger set of engineering specifications for vessel plumbing systems.