This document is an amendment to a solicitation for a nitrogen generator, primarily extending the proposal due date from December 11, 2025, to December 29, 2025. It addresses industry questions regarding the requirement, clarifying technical specifications for the nitrogen generator. Key clarifications include the absence of an external compressed air system, the need for onboard nitrogen storage (850 CFM) at 4000-5000 psi, and a final output pressure of 300-500 psi. The generator must provide oil-free nitrogen with 95%-99% purity and be a complete turn-key system with a rotary screw air compressor, filtration, pressure regulation, and an in-line oxygen analyzer. The evaluation criteria prioritize technically acceptable proposals with the lowest total evaluated price.
The Department of the Air Force, Oklahoma City Air Logistics Complex (OC-ALC) at Tinker Air Force Base, Oklahoma, is soliciting a Nitrogen Generator (C26-005) for inflating aircraft tires. The generator must produce 95-99% pure nitrogen (target 97%) using membrane technology, with a maximum size of 6'x3'x6' and weight of 4,000 lbs. It needs to provide dry, oil-less nitrogen with a storage pressure of 4000-5000 PSIG and output pressure of 300-500 PSIG, including onboard storage (desired 850 CFM capacity). The output flow should be 13-20 SCFM (nominal 15 SCFM) within an operating temperature of 50°F-125°F, using 460V/60Hz/3 Phase electrical utilities. The system must be turn-key, including an internal rotary screw air compressor, filtration, pressure regulation, an in-line oxygen analyzer with alerts, and a touchscreen HMI control panel with an emergency stop button. Acceptance testing will occur after installation at Tinker, and a one-year warranty and safety manual are required.