Vacuum Pumping System for ATF/CCL

NASA Glenn Research Center is seeking a vacuum pumping system for the Armstrong Test Facility (ATF) and CCL. This is a Brand Name or Equal To requirement, set aside for small businesses. The system must be capable of evacuating a 6-foot diameter, 10-foot tall vacuum chamber to less than 5x10^-6 Torr. It will include a turbopump directly mounted to a 10-inch inner diameter flange and a roughing pump with a bypass loop for direct chamber pumping. Both pumps must be dry-operated, and cooling will be via water. Remote operation of the system and valves is required. The turbopump must have a nitrogen pumping speed of at least 2400 liters/s, and the roughing pump must be sized to back the turbopump at maximum speed and ultimate pressure. The ultimate pressure for the turbopump must be less than 1x10^-7 Torr. The system requires a nitrogen purge inlet and remote control isolation for the turbo-pump purge. Electrical requirements include 208V/60Hz/1 or 3 phase, with a maximum combined current of 40 Amps and valve actuation voltage of 24VDC. Communication protocol preference is Profi-bus, with alternatives acceptable upon NASA concurrence. The system must have UL or engineering equivalent electrical certification. The controller cable length shall be at least 20 meters, and the combined water-cooling flow rate shall be equal to or less than 10 liters per minute. The vendor must provide a minimum one-year warranty including parts and labor. Documentation deliverables include installation, operation, and maintenance manuals, electrical wiring diagrams, and mechanical drawings with dimensions. Quotes are due by June 2, 2026.