Контекст:
Approximately 40 meters of High Flow Piping is required to supply the high flow oil to the B1 frame from the pump room header. Due to the high cost of high flow piping, if the pump room/distribution piping configuration changes and additional piping above 40 meters is required, MTS would provide a quotation for any amount in excess of 40 meters. Distribution piping to the B-10 testing area will be with 50 mm piping and is estimated at approximately 30 meters length. Distribution piping to the Materials laboratory will also be 50 mm size with individual take off manifolds with ball and check valves to supply each system rated at 114 LPM (30 GPM) per station and is estimated to be at 40 meters length. (Materials Frame Piping Not Shown in below sketch.)

imho
клапанные коробки для взятия/съема масла (лучше, конечно, для запитывания отдельных рабочих станций/подачи)

по смыслу из этих клапанных коробок берут (take off) масло на эти станции

такое мое видение вопроса