DUNE Cryostat Lid
ID: BZ-2025-07Type: Sources Sought
Overview

Buyer

ENERGY, DEPARTMENT OFENERGY, DEPARTMENT OFBERKELEY NATL LAB - DOE CONTRACTORBerkeley, CA, 94720, USA

NAICS

All Other Miscellaneous Fabricated Metal Product Manufacturing (332999)

PSC

MISCELLANEOUS ITEMS (9999)

Original Source

https://sam.gov/opp/33199cde7b6245788ff775aa6adbfd54/view
Timeline
    Description

    The Department of Energy, through the Lawrence Berkeley National Laboratory (LBNL), is seeking information from suppliers capable of producing a lid assembly for a cryogenic tank as part of the Deep Underground Neutrino Experiment (DUNE) project. The procurement aims to identify manufacturers with expertise in structural welding, stainless steel fabrication, and hermetic sealing, as the lid is critical for maintaining the liquid argon environment necessary for neutrino detection. This project is significant for advancing neutrino science and understanding fundamental questions about the universe. Interested parties must submit their responses by April 4, 2025, and can contact Brian Zatkow at bzatkow@lbl.gov or 510-495-2547 for further details.

    Point(s) of Contact
    Brian Zatkow
    (510) 495-2547
    bzatkow@lbl.gov
    Files
    Title
    Posted
    01 DU-1003-5353 LID.pdf
    The document outlines technical specifications and part listings for a cryostat construction project, specifically focusing on a lid section and related components. It includes detailed engineering drawings indicating dimensions, materials, and assembly instructions required for hermetic sealing and structural integrity. Key components listed include feedthroughs, membranes, nuts, washers, and high vacuum clamps, each specified with part numbers and quantities. The estimated total weight of the assembly is noted as 6494 lbs. The document emphasizes the necessity for precise tolerances and assembly methods to ensure successful integration and functionality. It is potentially part of a federal or state procurement process, which aligns with governmental requests for proposals (RFPs) that typically seek detailed, compliant, and accurately specified technical submissions for large-scale engineering or construction projects. The emphasis on proprietary information suggests confidentiality in the engineering process, adhering to standards for protective measures in government contracts.
    02 DU-1006-1204 LID STRUCTURE.pdf
    The document outlines specifications for components related to cryostat assembly, including I-beams and skin panels, intended for a government project. Notably, the file details various parts denoted by unique part numbers, quantities, and estimated weights, emphasizing technical aspects critical for fabricating and assembling these structures. On the drawings, specific tolerances, materials, and assembly configurations are outlined, conveying the level of precision required in this engineering application. The proprietary nature of the content implies confidentiality, with special instructions on reproduction rights. This file functions as a draft for quotes, indicating an ongoing procurement process within the framework of federal RFPs and grants, emphasizing adherence to stringent design and quality standards. The documentation underscores the importance of accurate engineering drawings and specifications for successful project execution within government contracts.
    03 DU-1006-1239 I-BEAM DETAIL.pdf
    The document outlines technical drawings and specifications for components of a cryostat system, specifically focusing on two configurations of an I-Beam weldment assembly, including a lid and related parts. The detailed design includes various part numbers, dimensions, weights, and material specifications for items such as the I-Beam and lift blocks. Each assembly requires precise tolerancing and is marked as proprietary and confidential, prohibiting unauthorized reproduction. The drawings present detailed views (top, front, bottom) and dimension representations, ensuring clarity in construction and assembly processes. By establishing these specifications, the document serves as a guiding reference for contractors responding to federal or state RFPs, thereby ensuring compliance with project requirements and enhancing the efficiency of bidding processes. Ultimately, this technical document reflects the careful planning and standards necessary for successful project execution within government contracts.
    04 DU-1006-1689 BRACKET LONG.pdf
    The document presents a detailed technical drawing for a piece of equipment, specifically a lid bracket, designated as DU-1006-1689. The drawing includes dimensions, specifications, and materials, including an I-beam of ASTM A572 Grade 65, necessary for construction and assembly. It outlines the estimated weight, quantities of various components, and references applicable standards and specifications, such as ASME for dimensioning and tolerancing. The document emphasizes that the drawings are proprietary, prohibiting reproduction without permission. It also features detailed sections and annotations, indicating tolerances and other critical fabrication specifications. The main purpose of this file is to provide accurate reference materials necessary for manufacturing, ensuring compliance with industry standards and facilitating communication between engineers and builders involved in government and local contracts. The detailed nature of the document underscores the importance of precision in technical specifications, critical in the context of federal and state contracts where adherence to guidelines and safety regulations is essential. Overall, the drawing serves as a foundational tool for the project tied to government RFPs and grants, essential for procuring the right materials and ensuring the quality of work.
    05 DU-1006-1837 BRACKET SHORT.pdf
    The document serves as a proprietary design and specification guideline for components associated with a specific project referenced under the designation "DU-1006." It outlines detailed mechanical drawings, item descriptions, estimated weights, and specific tolerances for assembly parts, including mount plates, brackets, and stiffeners. The document emphasizes intellectual property rights, prohibiting reproduction without prior written consent from the involved entity, identified as LBNL (Lawrence Berkeley National Laboratory). Standards such as ASME and ANSI specifications are referenced for dimensional accuracy and tolerancing, underscoring the importance of compliance with industry standards. The draw specifications provide essential data necessary for manufacturing and project execution, highlighting the operational parameters that ensure the integrity and performance requirements of the components. Overall, this document forms an integral part of the planning and engineering processes required for fulfilling government contracts or grants, ensuring all parties adhere to established safety and quality benchmarks.
    BZ-2025-07 Cryostat Lid RFI.pdf
    The University of California, Lawrence Berkeley National Laboratory (LBNL) is soliciting information through Request for Information (RFI) No. BZ-2025-07 to identify suppliers capable of producing a lid assembly for a cryogenic tank integral to the Deep Underground Neutrino Experiment (DUNE). This project aims to deepen understanding of neutrinos, fundamental particles that may unlock secrets regarding the universe's composition. The cryostat's lid, comprising a steel frame and stainless-steel membrane, is vital for maintaining the liquid argon environment necessary for neutrino detection. LBNL outlines preliminary specifications for the lid assembly, emphasizing the need for capabilities such as structural and hermetic welding, stainless steel fabrication, and helium leak detection. Suppliers should ideally perform most processes in-house, although some subcontracting may be acceptable. The RFI targets manufacturers fitting within the NAICS Code 332999, with a small business size standard of 750 employees or fewer. Responses, which will inform future procurement decisions, are due by March 28, 2025, and may include company qualifications and budget estimates. Notably, this RFI serves purely for informational purposes and does not imply any commitment or solicitation from LBNL. Respondents are advised to withhold proprietary information in their replies due to potential public disclosure.
    BZ-2025-07 Cryostat Lid RFI v2.pdf
    The University of California’s Lawrence Berkeley National Laboratory (LBNL) has released a Request for Information (RFI) No. BZ-2025-07 to identify suppliers capable of producing a lid assembly for a cryogenic tank as part of the Deep Underground Neutrino Experiment (DUNE) project, focused on neutrino science. The RFI seeks a prototype lid that meets specific preliminary specifications, including a steel frame structure, a stainless steel membrane, insulation, and appropriate feedthroughs. Suppliers must demonstrate capabilities in structural welding, adhesive bonding, inspection, and finishing, preferably managing these processes in-house, though subcontracting is acceptable. Responses are invited from companies with experience in complex fabrications related to these specifications, and submissions are due by April 4, 2025. It is emphasized that this RFI is for informational purposes and does not constitute a solicitation for proposals or quotes. The document identifies the relevant NAICS code and small business size standard while stipulating that responses cannot contain confidential information, as they may be publicly disclosed. Overall, this RFI represents LBNL's strategic planning effort to leverage external expertise for the successful execution of the DUNE project.
    DU-1003-5353 revB_62.STEP
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    DUNE Cryostat Lid
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