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USACE / NAVFAC / AFCEC / NASA UFGS-23 21 13.23 20 (July 2007)
Change 1 - 11/19
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Preparing Activity: NAVFAC Superseding
UFGS-15184N (Ap
ril 2006)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated October 2022
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SECTION TABLE OF CONTENTS
DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)
SECTION 23 21 13.23 20
[HIGH][MEDIUM] TEMPERATURE WATER SYSTEM WITHIN BUILDINGS
07/07, CHG 1: 11/19
PART 1 GENERAL
1.1 REFERENCES
1.2 DEFINITIONS
1.2.1 Medium Temperature Water (MTW)
1.2.2 High Temperature Water (HTW)
1.2.3 Terminal Unit
1.2.4 Steam Producer
1.3 GENERAL REQUIREMENTS
1.3.1 Associated Work
1.3.2 Description
1.3.3 Classes and Maximum Working Pressures
1.3.4 Field Verification
1.3.5 Identification
1.3.6 Welding Safety
1.3.6.1 Procedures and Qualifications
1.4 SUBMITTALS
PART 2 PRODUCTS
2.1 PIPE AND PIPE SYSTEM
2.1.1 High Pressure Piping System
2.1.2 Pipe
2.1.3 Pipe Fittings
2.1.3.1 Fittings for Steel Pipe Sizes 3 to 50 mm 1/8 to 2 inches
2.1.3.2 Fittings for Steel Sizes 65 mm 2 1/2 inches and Above
2.1.4 Gaskets
2.1.5 Bolting
2.1.6 Vents
2.1.7 Valves; Gate, Globe, Ball, Check, Angle, and Control
2.1.7.1 Globe Valves
2.1.7.2 Gate Valves
2.1.7.3 Temperature Control Valves
2.1.7.4 Emergency Shutoff Valve
SECTION 23 21 13.23 20 Page 1
