TECHNICAL SPECIFICATIONS.docx

This document contains the Technical Specifications for an oil-free compressor for helium gas that is suitable for operation to drive recirculating high-pressure helium gas flow in a ColdEdge Stinger closed-cycle flow cryostat system. The key specifications include an output pressure greater than 110 psig, a flow rate greater than 25 slpm at 110 psig output pressure, water cooling with less than 1 gpm flow rate, a maximum 5 * 10^-5 mbar liters per second leak rate, no oil used in the pumping mechanism, and an electrical power requirement not to exceed 2 kW, 3 phase 208 V. The compressor must also include an inline helium gas purifier and adsorber, and have a mechanical footprint and input/output helium gas flow equivalent to the Sumitomo HC-4E compressor.

This Technical Specifications document is associated with a Pre-Solicitation from the National Institute of Standards & Technology (NIST) for an "Oil-free Helium Recirculating Compressor" under Solicitation Number 1333ND. NIST is seeking information from vendors capable of providing the required oil-free compressor for a closed-cycle flow cryostat system. Interested organizations are requested to submit capability statements by 1 p.m. MST on Wednesday, October 23, 2024. NIST will use the results of this sources sought notice to determine whether to proceed with a sole source or competitive procurement.