Attachment 27 Tank 1 A-1 Form (Front).pdf

This is a Form A-1 Manufacturers' Data Report for Pressure Vessels, completed for job #C-41550 in accordance with ASME Code Section VIII, Division 2. The pressure vessel was manufactured by Hahn & Clay (located in Houston, Texas) for the Naval Underwater Systems Center in Newport, Rhode Island, with installation location at Naval Underwater Systems Center in New London, Connecticut.

The vessel is a vertical type (model 2100), manufactured in 1989 with the following specifications: shell made of SA-516-GR70 material with 6-1/8" thickness, 62-1/4" internal diameter, and 8'-0" length. The vessel has DBW seams rated for 1150°F Shrs FULL, and features SA-516 GR70 heads with retainer forging (SA-266 CL.2). The design pressure is 4000 psi at max temperature of 100°F, with a charpy impact of 12/15 at +30°F and a hydro test pressure of 5000 psi. The vessel was constructed according to 1986 ASME Boiler and Pressure Vessel Code requirements.