MSD Model D-3s Fast System Essayons.pdf

This document is a technical drawing and installation specification set for the ESSAYONS vessel's FAST (Flexible Accommodation and Storage Tank) system, prepared by Cascade General Portland Shipyard dated March 19, 2010. The package includes detailed piping schematics, sectional views, system diagrams, electrical control panels, and equipment specifications for a marine wastewater treatment and storage installation.

The FAST system comprises a media tank, wet well, holding tank, tablet chlorinator, blower assembly, and associated pumping equipment. Key components include a 4-inch sewage inlet, airlift valve, emergency overboard discharge, and vent systems. The system utilizes an air scour mechanism within the media tank, trap seals for black water management, and includes provisions for sample collection and level indication. The electrical control panel operates at 460VAC, 3-phase, 60Hz with 10.2 FLA and 5KAIC short-circuit capacity, managing multiple pumps and blower systems. Performance data for A1B centrifugal pumps is provided, including operational curves at 3500 RPM rated for flow capacities up to approximately 800 gallons per minute. Installation specifications require blast and coat treatment, hydro testing, and compliance with applicable regulatory requirements. The installation drawings provide both plan views and isometric representations showing all valve positions, piping routing, and equipment placement aboard the vessel.