A1 PWS.pdf

This is a Performance Work Statement (PWS) for Category "A" Auxiliary Machinery Item No. 0512, which details requirements for overhauling 73 valves for the USNS Pecos (TAO 197) under contract N3220524R4151. The work involves various valve types including sea water pump suction/discharge valves, fire & ballast pump valves, fuel oil service pump valves, jacket water cooling pump valves, and multiple gate and butterfly valves with Limitorque operators.

The PWS outlines specific maintenance requirements including disassembly, cleaning, inspection, straightening stems to 0.002 inch tolerance, die penetrant inspection, machining and grinding valve seats, and hydrostatic testing to 1.5 design system pressure. Notable requirements include coating sea water valve interiors with two coats of Apexior No. 3, replacing valve stems as needed, and performing detailed Limitorque operator maintenance. The contractor must coordinate inspections with ABS Surveyor, USCG Inspector, and MSC Representative. The work completion date is set for May 16, 2024 in Crawford, Charles location. The document references multiple NAVSEA drawings and technical manuals as guidance for the work.