UFGS 23 64 26 Chilled, Chilled-Hot, and Condenser Water Piping Systems  

History: Below is a listing of the Revisions and Changes made to this UFGS.

ACTION N New R Revision C Change D Deletion
Release PA Action Change # Nature of Change or Revision
Feb-2024 N C 7

In response to CCRs 9060, 13651, and 14220, ‘Pump Discharge Valve’ (submittal and paragraph) has been removed from the section as it conflicted with UFC 3-410-01 Heating, Ventilating, and Air Conditioning Systems’.

Nov-2022 N C 6

Updated paragraph "Valves" (3.1.5) removed sentence regarding omitting isolation valves

Nov-2019 N C 5

Incorporated dispersal of criteria from the retired UFC 3-440-05N TROPICAL ENGINEERING, and the addition of corrosion protection criteria to coordinate with UFC 1-200-01 DoD BUILDING CODE.

Feb-2017 N C 4

Updated Technical Note in 2.2.2-Fittings and End Connections (Joints)

Aug-2015 N C 3

UFGS sustainability/energy updates to comply with Navy and DoD policies to enforce requirements of UFC 1-200-02 "High Performance and Sustainable Building Requirements".

May-2015 N C 2

Modified subparts 2.2.2,, 2.6.3, and to show grooved connections are not used on NAVFAC projects.

Nov-2013 N C 1

Added subparts 2.3 and 3.2; revised subparts, 2.4.1, 2.7.13. 2.7.16, 2.8.5, and 3.5.2

Aug-2009 N R

Editorial changes to subparts 2.3 & 2.4

Apr-2008 N R

Section References (SRF) update paragraph 2.12

Jan-2007 N R

Added note "Not for use in Navy projects" to paragraphs 'Piping for Steam and Condensate' (2.3) and 'Piping for High-Pressure Compressed-Air Systems' (2.4)

Jul-2006 N R

Added NASA requirements