Plant Interstage Cooler Bundle Assemblies

Air Force Test Center is seeking sources for Plant Interstage Cooler Bundle Assemblies with a response deadline of May 21, 2026, under a brand-name requirement for BASCO cooler parts manufactured in the United States.

This is a sources-sought notice only; no contract award is committed. The contracting office is AFTC/PZI at Arnold Air Force Base, Tennessee. Work will be performed at the VKF Plant, Arnold Engineering Development Complex, Arnold Air Force Base, Tennessee.

The requirement is for five complete cooler bundle assemblies in two construction types: fin-tube construction for first and second stage bundles in 4-pass triple inlet/outlet waterflow configuration, and shell-tube construction for remaining bundles in 2-pass single inlet/outlet cross-baffled configuration. All assemblies must be designed and manufactured to ASME BPVC standards and operate at required capacity with up to 20% of tubes plugged. Design conditions include air flow rates of 125–526 pounds per second, inlet temperatures of 222–400 degrees Fahrenheit, operating pressures of 45–2,774 PSIA, water flow rates of 1,100–3,660 GPM depending on bundle type, and cooling water specifications including pH 6.7–7.7 and dissolved solids of 70–130 PPM. Bundles must fit existing envelopes without modification and not exceed existing weights. The contractor must provide engineering analysis, ASME Y14.5 fabrication drawings, pressure and hydro-testing reports, inspection reports, and a one-year warranty. Responses must include company information, SAM UEI, authorization letter to sell BASCO cooler parts, preliminary estimate, and lead time. Submit to Contracting Officer Erica Anglin at erica.anglin@us.af.mil by May 21, 2026 at 10 a.m. Central Time.