Argentine Mainline Fueling Expansion: The existing mainline fueling facility was expanded from one fueling platform to two fueling platforms. The design included the addition of a new 800 GPM centrifugal diesel fuel pump, and the installation of fueling cranes, and boom cabinets for lube oil and potable water. Fueling platform design incorporated track pans, a secondary containment system, and allowed for an expanded drainage capacity for the entire fueling facility. The addition of the 800 GPM fuel pump brought the total capacity of the two fueling platforms to 2,400 GPM, allowing for simultaneous fueling of two, sets of six locomotive consists at a fueling rate of 190 GPM per locomotive. The control system was designed to match the existing system, using relay logic control, but the design made provisions for converting the relay logic control system to a PLC-based control system.

Argentine Mainline Diesel Fuel Transfer Line Replacement: Approximately 6,000 lineal feet of double-wall, direct buried diesel fuel piping was installed as a replacement to the existing single wall steel piping. The double wall piping used a Schedule 40 steel carrier pipe, with a fiberglass reinforced plastic, FRP, outer containment pipe. The use of the FRP containment pipe eliminated the concerns of corrosion and the need for cathodic protection of the piping. Hanson-Wilson designed a system that connected an existing diesel supply main, and supply diesel fuel to storage tanks located throughout the facility. We determined the best routing of the pipes and coordinated the routing with the existing utilities at the site. Also included in the project was a Schedule 40 PVC pumped stormwater line, which was installed parallel to the diesel fuel line. Pipe casings were designed for all piping that crossed below tracks.

Argentine Valve Replacement: This project involved the replacement of existing fuel system valves which had begun to leak. Existing butterfly valves were replaced with new full port, Viton seat ball valves. This project was unique because the facility remained in operation throughout design and construction. The construction documents detailed sequences of operation for each of the seven locations.