The document details specifications for cylinder and valve operating machinery for the U.S. Army Corps of Engineers, specifically for the New Cumberland Locks & Dam and Pike Island Locks & Dam on the Ohio River. It includes comprehensive engineering drawings and material specifications for various components such as cylinders, cylinder heads, piston rods, pistons, and associated hardware. The file outlines material grades (e.g., Forged Steel-Grade I, Bronze-Comp 8, Cast Iron-Class 50), dimensions, manufacturing processes (e.g., seamless steel tubes, forged in one piece), and finishing requirements (e.g., ground or honed to a polished finish, heat treatment). It also specifies tolerances for cylinder bore and taper, welding standards (Joint Army-Navy Standards 19), and ASTM designations for forged steel (A-105-46/57T Grade I, A237-55 Class A). Revisions to the drawings indicate updates related to "as-built" details, piston rod cladding, and pattern numbers.
The document outlines the specifications for a Blanket Purchase Agreement (BPA) for hydraulic cylinder fabrication and repairs, including new fabrication, rehabilitation, and honing. It details unit price payment items, referencing industry standards like ASME and ASTM. Key requirements include mandatory site visits to verify measurements at Hannibal Locks and Dam, specific material requirements for cylinders, piston rods, pistons, seals, and other components, and strict welding procedures and qualifications. The BPA also covers submittal requirements, delivery, storage, handling, a two-year warranty, and comprehensive operation and maintenance instructions. Security procedures, including background checks and E-Verify, are mandated for all personnel. Fabricator qualifications require at least five years of experience. The cylinders must be rated at 2,000 psi, with rigorous shop assembly and testing, including hydrostatic tests, and specific painting guidelines for exposed surfaces. All items must be delivered within 180 calendar days of award.