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UFC 3-430-09 28 July 2025 UNIFIED FACILITIES CRITERIA (UFC) APPROVED FOR PUBLIC RELEASE; DISTRIBUTION UNLIMITED EXTERIOR MECHANICAL UTILITY DISTRIBUTION UFC 3-430-09 28 July 2025 This Page Intentionally Left Blank UFC 3-430-09 28 July 2025 UNIFIED FACILITIES CRITERIA (UFC) EXTERIOR MECHANICAL UTILITY DISTRIBUTION Any copyrighted material included in this UFC is identified at its point of use. Use of the copyrighted material apart from this UFC must have the permission of the copyright holder. Indicate the Military Department Preparing Activity responsible for the document. U.S. ARMY CORPS OF ENGINEERS NAVAL FACILITIES ENGINEERING SYSTEMS COMMAND (Preparing Activity) AIR FORCE CIVIL ENGINEER CENTER Change No. Date Location This UFC supersedes UFC 3-430-09, dated 16 January 2004 and UFC 3-43
eral criteria for the design of exterior mechanical distribution systems including steam, heating water, chilled water, and compressed air for Department of Defense (DoD) facilities. 1-2 INCORPORATES, REISSUES, AND CANCELS. This document is a revision and update of UFC 3-430-09 Exterior Mechanical Utility Distribution. The Military Handbook format contained in UFC 3-430-09 is being converted into UFC format as part of this revision. It incorporates UFC 3-430-01FA Heating and Cooling Systems Distribution and UFC 3-430-09N Exterior Mechanical Utility Distribution (already archived). The natural gas distribution has already been pulled from these two UFCs and is its own separate UFC (UFC 3-430-05 Natural Gas and Liquefied Petroleum Gas [LPG] Distribution Pipelines). Once this UFC is published
te Location This UFC supersedes UFC 3-430-09, dated 16 January 2004 and UFC 3-430-01FA, dated 25 July 2003. UFC 3-430-09 28 July 2025 This Page Intentionally Left Blank UFC 3-430-09 28 July 2025 FOREWORD The Unified Facilities Criteria (UFC) system is prescribed by MIL-STD 3007 and provides planning, design, construction, sustainment, restoration, and modernization criteria, and applies to the Military Departments, the Defense Agencies, and the DoD Field Activities in accordance with USD (AT&L) Memorandum dated 29 May 2002. UFC will be used for all DoD projects and work for other customers where appropriate. All construction outside of the United States, its territories, and possessions is also governed by Status of Forces Agreements (SOFA), Host Nation Funded Construction Agreements (HNFA
Utility Monitoring & Control System (UMCS) Front End and Integration UFC 3-420-02 Compressed Air UFC 3-440-01 Facility-Scale Renewable Energy Systems Fueling Systems UFC 3-460-01 Design: Petroleum Fuel Facilities UFC 3-460-03 Petroleum Fuel Systems Maintenance MO-230 M&O of Petroleum Fuel Facilities UFC 3-410-04 Industrial Ventilation UFC 3-430-09 Exterior Mechanical Utility Distribution Central Plants UFC 3-430-11 Boiler Plant Instrumentation and Control Systems UFC 3-490-06 Elevators UFC 4-826-10 Design: Refrigeration Systems for Cold Storage UFC 3-430-01FA Heating & Cooling Distribution Systems CANCELLED UFC 3-401-01 28 July 2025 Change 2, 14 May 2026 3 CHAPTER 2 TECHNICAL REQUIREMENTS 2-1 DOCUMENTATION REQUIREMENTS Comply with the design analysis and drawing requirements in the UFC 3-4
ria. For steam piping and condensate return piping design requirements, refer to UFC 3- 430-09 subject to the following exceptions and additions. It is noted that steam piping on piers and wharves is often specified to be ASTM A53 steel. 3-1.3.1 Pitch. For steam piping on or under a pier, the pitch of piping required by UFC 3-430-09 may be impractical due to elevation limitations or structural interference. In such cases, the designer must compensate by proper sizing of piping and by provision for adequate condensate removal. Tidal submergence of piping should be avoided by whatever means are practical. UFC 4-150-02 12 November 2020 16 Diversity Factors (DF) for Steam Usage a Outdoor Temperature Diversity Factor (DF) b for: Ship Type Range 1 3 5 9 (°F) Ship Ships Ships Ships Surface Combat
UFC 3-240-03N (MIL-HDBK-1138), Wastewater Treatment System Operation and Maintenance Augmenting Handbook, 16 January 2004 UFC 3-240-13FN, Industrial Water Treatment Operation and Maintenance, 25 May 2005 UFC 3-420-01, Plumbing Systems, 23 June 2010 UFC 3-430-09, Exterior Mechanical Utility Distribution, 16 January 2004 UFC 3-460-01, Design: Petroleum Fuel Facilities, 16 August 2010 UFC 3-460-03, Maintenance of Petroleum Systems, 21 January 2003 UFC 3-601-02, Operation and Maintenance: Inspection, Testing, and Maintenance of Fire Protection Systems, 8 September 2010 UFC 4-020-01, DoD Security Engineering Facilities Planning Manual, 11 September 2008 UFC 4-020-02FA, Security Engineering: Concept Design, 1 March 2005 UFC 4-020-03FA, Security Engineering: Final Design, 1 March 2005 UFGS 33 51
C 3-240-01, Wastewater Collection and Treatment UFC 3-410-01, Heating, Ventilating, and Air Conditioning Systems UFC 3-430-09, Exterior Mechanical Utility Distribution UFC 3-570-01, Cathodic Protection UFC 3-600-01, Fire Protection Engineering for Facilities UFC 4-010-06, Cybersecurity of Facility-Related Control Systems UFC 4-025-01, Waterfront Security Design UFC 4-150-02, Dockside Utilities for Ship Service UFC 4-150-06, Military Harbors and Coastal Facilities UFC 4-152-01, Piers and Wharves UFC 4-159-03, Moorings UNIFIED FACILITIES GUIDE SPECIFICATIONS (UFGS) https://www.wbdg.org/ffc/dod UFGS 03 31 29, Marine Concrete with Service Life Modelling UFGS 03 31 30, Marine Concrete UFGS Division 26, Electrical UFGS 35 59 13.14 20, Polymeric Piles UFC 4-213-10 18 May 2020 137 U.S. ARMY CORPS
s://everyspec.com/MIL-SPECS/MIL-SPECS-MIL-DTL/MIL-DTL-18001L_52572/ MIL-HDBK-1136/1, Cathodic Protection Field Testing https://www.wbdg.org/navy/criteria-manuals/mil-hdbk-1136-1 UFM 3-570-06 13 March 2026 119 UNIFIED FACILITIES CRITERIA (UFC) https://www.wbdg.org/dod/ufc UFC 3-430-09, Exterior Mechanical Utility Distribution UFC 3-440-05N, Tropical Engineering UFC 3-460-01, Design: Petroleum Fuel Facilities UFC 3-501-01, Electrical Engineering UFC 3-575-01, Lightning and Static Electricity Protection Systems UFM 3-230-02, Operation and Maintenance: Water Supply Systems UFM 3-230-13, Industrial Water Treatment Operation and Maintenance UFM 3-560-01, Operation and Maintenance: Electrical Safety UFM 3-601-02, Operation and Maintenance: Inspection, Testing and Maintenance of Fire Protection Sy
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