Amendment 04--RFP LBNF-357777-JD 11-05-2024.pdf

AMENDMENT TO SOLICITATION

AMENDMENT NO.

DATE OF AMENDMENT:

November 6, 2024

SOLICITATION NO.

RFP LBNF-357777-JD

DATE ISSUED:

September 13, 2024

PROJECT NO.

N/A

PROPOSAL DUE DATE:

November 22, 2024

TITLE OF PROJECT:

LONG-BASELINE NEUTRINO FACILITY INTERNAL CRYOGENICS

Offerors must acknowledge this Addendum prior to the hour and date set forth in the solicitation by one of the following methods:

1. By completing the Subcontractor Annual Representations and Certifications (SARC), or

2. By separate fax, letter, or email.

If by virtue of this Addendum you desire to change a proposal already submitted, such change may be made by email, provided such email clearly references the Solicitation number and this Amendment number and is received prior to the proposal due date.

Amendment No. 4 is issued to answer questions and extend the proposal due date as follows:

Question No. 1: Section 5.1 out lines the scope of supply as:

VD (FD-2)

1. Two (2) LAr distribution manifolds with (2) branches, also running along the bottom of the cryostat.

2. A single (1) LAr pipe from the top of the cryostat.

3. Two (2) GAr Boil off lines.

HD (FD-1)

A series of (20) cool down manifolds along the top of the cryostat.

6. Two (2) LAr distribution manifolds with (2) branches, also running along the bottom of the cryostat.

7. A single (1) LAr pipe from the top of the cryostat.

8. Two (2) GAr Boiloff lines

The VD and HD ISOs show two VJ lines running vertical that reduce and branch off to single wall flanged straight pipes. Please confirm that this is item 1 and 6 respectively. On sheets 2 and 3 there is an enlarged view of vacuum jacketed pipe. Please confirm if this is an enlarged view of the VJ pipe from items 1 and 6 or are separate lines that are part of the scope of supply.

Answer No. 1: CONFIRMED - items 2, 3, 7, and 8 are part of the scope of the supply. They are not pictured in the isometrics, as they are simple and short pipes. All of them are: - less than 5 m long - straight - follow construction showed in Q&A - Appendix 1

Question No. 2: Is the piping penetration design into the cryostat part of the scope of supply?

Answer No. 2: Penetrations are not in the scope. Interface with the penetrations is. It is detailed in the attached document entitled Q&A - Appendix 1.

Question No. 3: Section 5.2 Item 4. Subcontractor shall perform stress and thermal analyses for the supply to verify the code and performance requirements. Please clarify if thermal analysis is meant to include thermal as part of the stress analysis or a thermal analysis to determine what the heat input into the system?

Answer No. 3: Both

Question No. 4: The scope of supply states Engineering, Manufacturing, pack and deliver. Who would be doing the installation of these lines?

Answer No. 4: The installation of internal cryogenics is not part of this procurement. It will be accomplished by a subcontractor selected for the LBNF Argon Distribution Equipment IDIQ (SAM.gov Notice ID: LBNF-

355802-JD).

Question No. 5: Reference is made to J-4 SOW Table 6-1 Mode 3, Page 6-7. In this section of the table it states that LAr will be continually re-circulated through the purification system by means of an external pump (not part of supply). Our question is which line will be used to pull the argon from the cryostat?

Answer No. 5: The argon will be pulled via penetrations in the cryostat equipped with PROTEGO valves. All of this is outside of the scope of the internal cryogenics RFP.

Question No. 6: In this section it provides a part number for a spray nozzle. The vendor has requested clarification as they believe the part number may be different. They provided the following language:

The description and part number don’t match. Which one do you want quoted? If TPU then I would need the spray angle. TPU Unijet Hydraulic Flat Spray, size 70 and 1/4HHSJ-SS6013 SpiralJet.

I think they are asking for clarification between Unijet and Spiraljet.

Answer No. 6: The "pig tail" type o nozzles is required - SpiralJet. The part number is correct (1/4HHSJ-

SS6013).

Question No. 7: When talking about the teflon layer between the pipe and the pipe support as well as the teflon layer between the pipe support and the cryostat floor, is the expectation that the pipe support will be completely free floating and not fixed to anything?

Answer No. 7: Yes, they are not to be fixed to anything. However, buoyacy considerations shall be taken into account for the supports not to float.

Question No. 8: Is the current expectation that the vertical distribution lines will be a single spool manufacturered and shipped as 1 piece? It does look like from the drawings the envelope dimensions are close to a truck max shipping envelope.

Answer No. 8: There is no expectation. This is a part of the detailed engineering which is in the scope.

Question No. 9: This section states the lines can be supported from the detector beams. It sounds as though these beams are below the manifolds. Is there any detail at this time on how the manifolds will be supported at the interface point of the cryostat at the tops of the manifolds?

Answer No. 9: The interface flange shall serve as the fixed support for the tops of the manifolds.

Question No. 10: In this section it talks about the supplier is responsible for sizing the pipes based on the flow rates and supply pressure to the pipe networks. These are assumed to be the MAX allowable parameters in the App C interface matrix. Please confirm.

Answer No. 10: The parameters in the App C interface matrix are the "Operating Conditions". Those shall never be te MAX allowable parameters. The latter shall be proposed as a part of the final design.

Question No. 11: Are there any restrictions on how our firm decides to break up the pipe routing or is this fully up to our firm to determine? For example, if our firm wanted to break one of the spare cool down lines into 2 factory spools would our firm be free to break the line where ever we saw fit?

Answer No. 11: Yes, the selected firm shall design the pipelines routing (which includes breaks in the linses) and submit to Fermilab for approval as a part of the final design. As long as the requirements described in the SOW are satisfied, there are no additional restrictions. Some of those requirements are (as per section 7.3 of the SOW): " Each pipe is routed such that it may be supported on one of the cross-beams that hold the detector aloft . The load on the support beam should be no more than 165 lbf (75 kg) per pipe."

Question No. 12: In the interface requirements section it states to use "Standard CF flange type". Are there any part numbers or vendors in mind for what this Standard is?

Answer No. 12: "Standard CF flange type" refers to stainless steel flanges with a knife-edge sealing mechanism, available in standardized sizes based on outer diameter. Specyfic part nubers or vendors are not provided.

Question No. 13: This paragraph attempts to explain verbally the connection between the line and the cryostat itself and seems to talk about CF flanges on the process line and the vacuum jacket. Would it be possible to get a diagram illustrating this intent?

Answer No. 13: The paragraph talks about CF flanges on the process lines OR on the vacuum jacket. When vacuum jacket is present, the CF flange is installed only on the jacket itself. See Q&A - Appendix 1 for a diagram.

Question No. 14: In this item number it talks about unbraided bellows are not allowed. Our firm standard would be to use internal bellows where the outer rigid jacket acts to protect the bellows in place of a braid.

Braided internal bellows are not commonly used and not standard. Braiding is common on hoses but not expansion bellows. Is this point meant to address flexible hose and not bellows? Our firm requests approved to use standard design practices for internal bellows design.

Answer No. 14: This is fine

Question No. 15: Our firm requests approval to use the DV-6 Hastings vacuum gauge as it is the standard gauge used for production. Our firm would use this in place of the Stinger CVM211GGL sited in the SOW.

Our firm can provide a hand held display reader to go along with the project.

Answer No. 15: This is fine

Question No. 16: On this page an ACEM CVI V-1046 pump out is called out. We request approval to use its own pump out design in place of this ACME part number. Our firm’s tool will be provided.

Answer No. 16: This is fine

Question No. 17: Our firm has internal storage procedures for MLI. Our firm does not use a dedicated controlled environment to maintain the humidity at a given level. Our firm has other quality procedures to ensure the dryness of the MLI when pulling vacuum.

Answer No. 17: This is fine.

Question No. 18: Individual leak rate of flanged assembly is assumed to be for CF flanges in this Scope of work as those are the only ones provided. Leak rates for CF flanges as prescribed by flange manufacture/vendor

Answer No. 18: Any such assumptions must be clearly stated in your technical proposal and will be considered by the evaluation team.

Question No. 19: Polymer based components planned to be used subject to FRA approval. Our firm uses G10 material as spacer supports between inner and outer pipes as low thermal heat leak material. This is standard practice for Our firm and requesting approval from FRA to use this material in the piping design.

Answer No. 19: This is fine.

Question No. 20: PQRs and WPS are made viewable at manufacturing facility and are not permitted to leave the building.

Answer No. 20: This is fine.

Question No. 21: WPQs are made viewable at manufacturing facility and are not permitted to leave the building.

Answer No. 21: This is fine.

Question No. 22: Reference is made to SOW Section 10.2.11 Welding, page 10-21. This section states "if possible, longitudinal welds shall be avoided". Will proposals using seamless pipe be viewed as preferable?

Our firm can quote seamless pipe but also wants to point out the added cost that goes with this when compared against other bidders.

Answer No. 22: The phrase "if possible" reflects a preference, not a requirement. A base offer with welded pipes is acceptable, while seamless pipes can be mentioned as an additional cost option.

Question No. 23: Are accelerameter loggers provided by FRA or are they required to be supplied by Our firm?

Answer No 23: To be supplied by the subcontractor.

Question No. 24: Reference is made to SOW Table 12-1, page 12-24. Is the intent of this table to cover the construction of ever spool of pipe or is it meant to be a representative list and the finalized sample sizes of NP/HP tests will be agreed upon at time of kickoff? If this is for every spool of pipe FRA representatives will be at the manufacturing facility for a long time.

Answer No. 24: The table is intended to be a representative list, not a comprehensive one for every spool of pipe. The finalized sample sizes for NP/HP tests will be agreed upon at the kickoff meeting. Fermilab will observe some of the tests and assume the remaining will follow similar patterns.

Question No. 25: Reference is made to SOW Section 12.3.1 General, page 12-26. In this section it is states to perform the helium leak check test at cryogenic temperatures. This is not standard. Is an acceptable order of opteration to be mass spec pipe at room temperature, cold shock the pipe, then remove the LN2 and perform the mass spec test again, starting at the LN2 temperature?

Answer No. 25: This is fine

Question No. 26: Reference is made to SOW Section 12.3.2 From atmosphere, page 12-26. in this section the last statement is to check the tightness of the safety protection devices. In Our firm's manufacturing process the mass spec instrumentation is connected to this port. Can the vacuum level hold test meet the requirements of checking the relief devices?

Answer No. 26: More information is needed. Does this mean that the safety protection devices are not installed during the test? You may state this approach, and your assumption, in your technical proposal for FRA’s consideration.

Question No. 27: Reference is made to SOW Section 12.11, page 12-29. In addition to the FRA incoming inspection list in this section, Our firm recommends checking the vacuum level on every piece of VJ pipe before removing from the truck to verify vacuum integrity during shipping.

Answer No. 27: Ok

Question No. 28: In the engineering deliverables it is discussed that an installation plan and installation schedule shall be provided. Are installation services required or supervision services required for this contract? Or are these plans that will be developed by our firm for submittal to FRA for use by others?

Answer No. 28: The installation plan is to be developed by the selected Subcontractor for submittal to Fermilab for use by others. The installation schedule is not necessary.

Question No. 29: It looks like port 20.1 is the lar cooldown line penetrations. This port looks to have 2 holes in it. What is the purpose of the two holes? Is the larger hole meant to be where the VJ lines go through?

Answer No. 29: Yes, the larger hole is where the VJ lines go through. The smaller penetration is to be either left empty or with a welded pipe stub (TBD during KO meeting).

Question No. 30: Reference Attachment J-13 Section 6.1, page 1 which states: "Assign a Scheduler within 2 weeks of Notice to Proceed. The Scheduler shall not have less than 5 years of scheduling experience on projects of similar type and size using P6."

Our firm does not use Primavera internally and uses Microsoft project. Additionally, the project manager manages the schedule. Requesting approval to use MS project for project schedules.

Answer No. 31: This should be clearly stated as an exception in your proposal. However, MS Project is fine.

Question No. 32: Our firm has observed that there is nothing noted on the attached P&ID, other than that the cooling manifolds are required. Could you please advise or confirm, that this part is included as well?

To ensure we have the scope in mind, we have circled the parts in red. So all valves, and (VIP) lines which are on there.

Answer No. 32: The part in the red rectangle (piping and instrumentation outside of the cryostat) are not in the scope of this acquisition. They are a part of the LBNF-355802-JD LBNF Argon Distribution Equipment IDIQ.

The scope of supply here is below all of the TPs and TJs – inside of the cryostat. See typical below – everything under green line (along the green arrow) is in the scope of this acquisition. Everything along the red arrow is not:

Please note however that the in-scope piping shall also be vacuum insulated (even though it is shown as uninsulated in the P&ID).

An extension has been granted as follows.

The proposal due date is hereby changed to November 22, 2024 at 5:00 PM Central (US-Chicago) Time.

Additional questions will be accepted through November 11, 2024. Questions received after the deadline may not be answered.

All other provisions remain unchanged.

Fermi Research Alliance, LLC P.O. Box 500 Batavia, IL 60510 M.S 123

Jeremy Duncan LBNF Procurement Specialist

(865) 300-0443