Amendment I.docx

AMENDMENT I 1333ND21QNB610171 VACUUM JACKETED (VJ) PIPING

The purpose of this Amendment is to address vendor questions and answers (see below) and update the Statement of Work (see attachment (Rev 2)).

Question: On drawing 002-3266 with a branch including an 1-1/2” valve and 1-1/2 x 3” female bayonet can the branch inner line be 1-1/2” NPS Sch 10 pipe to match with these components?

Answer: The drawings indicate that the bayonet on that branch is indicated as an HPBF-20, which is a 2” model (circled in red below).

Question: What are the ID’s of the lines?

Answer: The line size is generally dictated by the bayonets and the control valves. The bayonets have weld joints that are dimensionally matched to a standard pipe schedule to make the welding easier. So, the contractor should start with the dimensions of those items and work their way through the spool picking the appropriate pipe and fitting sizes. Please refer to Section 2 in the Statement of Work. The Government has indicated the bayonet sizes, required instrumentation, and the envelope on the layout drawings. It is up to the Contractor to develop the technical approach and provide a detailed design. Therefore, the Contractor shall choose the appropriate details, like the line ID’s.

Question: What is the part number for the Lakeshore temperature sensor?

Answer: Please see updated Statement of Work (Rev 2) The original Statement of Work is hereby replaced by Revision 2. All other terms and conditions remain unchanged.

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