S02_Att1A SPECS Correction to Section 232113 and 232213 36C25225B0005 556-23-101_01082025.pdf
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- Z1DA--556-23-101: Renovate CLC Building 134-2C
- Solicitation number
- 36C25225B0005
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This is an amendment to specifications sections 232113 (Hydronic Piping) and 232213 (Steam and Condensate Heating Piping) for the Captain James A. Lovell Federal Health Care Center project, specifically related to chilled water piping from Building B188 to B3.
The amendment requires contractors to replace ASTM A307 general purpose bolts with ASTM A193 high temperature bolts and ASTM A194 high temperature nuts on hot water steam and hydronic systems. The changes originated from a December 2024 VA internal memo to modify PG-18-1 Master Specifications. The amendment makes specific revisions to both specification sections, updating the bolt and nut requirements for flanged connections to use materials rated for high temperature or high pressure service. The amendment is dated January 8, 2025 and applies to VA Contract/Task 36C25219D0022/36C25223N0287 under VA project number 556-23-104.
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AMENDMENT
Project: Captain James A. Lovell Federal Health Care Center
Chilled Water from B188 to B3
To: Sean Brewner
Re: VA Internal Memo dated December 2024, VA Request
Amendment Number: 01
From: Jonathan Carr, AIA
Date: 01/08/2025
VA | AE Project Number: 556-23-104 | 22018
Contract|Task: 36C25219D0022 | 36C25223N0287
Specification Section: 232113, 232213 Paragraph: See Below Drawing Reference: N/A Detail: N/A
Description: Amendment 01 originates from a December 2024 internal VA memo to modify PG-18-1 Master Specifications. VA Master
Specifications 232113 and 232213 currently allow general purpose ASTM A307 bolts on steam and hot water pipe flanges. VA seeks to update PG-18-1 Master Specifications to use high temperature nuts and bolts for flanged connections on steam and hot water piping systems. Amendment 01 requires Bidders to replace ASTM A307 general purpose bolts with ASTM A193 high temperature bolts and
ASTM A194 high temperature nuts on hot water steam and hydronic systems.
Specification revisions are as follows:
1. Section 232113 Hydronic Piping.
A. Par. 1.3.C:
i. Delete “A307-07…Standard Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength.”
ii. Replace the above deletion with “A193/A193M-23…Standard Specification for Alloy-Steel and Stainless Steel
Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.”
iii. Add “A194/A194M-22…Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.”
B. Par. 2.3.A.2.b:
i. Delete “Flange bolting: Carbon steel machine bolts or studs and nuts, ASTM A307, Grade B.”
ii. Replace the above deletion with “Flange Bolting: high strength carbon steel bolts or studs, ASTM A193, Class 2, Grade B7. Nuts shall be ASTM A194/A194M.”
2. Section 232213 Steam and Condensate Heating Piping.
A. Par. 1.3.C:
i. Delete “A307-07…Standard Specification for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength.”
ii. Replace the above deletion with “A193/A193M-23…Standard Specification for Alloy-Steel and Stainless Steel
Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.”
iii. Add “A194/A194M-22…Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.”
☐ Attachments: None.
Signed by: Date: 01/08/2025
Copies: ☐ ☐ ☐ ☐ ☐ ☐ ☐ File
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