1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 61 13 (August 2010)-Preparing Activity: USACE SupersedingUFGS-33 61 13 (April 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2010*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 61 13PRE-ENGINEERED UNDER
2、GROUND HEAT DISTRIBUTION SYSTEM08/10PART 1 GENERAL1.1 REFERENCES1.2 DEFINITIONS1.2.1 Heat Distribution System1.2.2 Direct-Buried1.2.3 UHDS Types1.2.3.1 Drainable-Dryable-Testable (DDT) Direct-Buried1.2.3.2 Water Spread Limiting (WSL) Direct-Buried1.2.3.3 Water Spread Limiting Poured-In-Place Insulat
3、ion (PIPI)1.3 SYSTEM DESCRIPTION1.3.1 Scope1.3.2 UHDS Design1.3.3 Cathodic Protection1.3.4 Operating Characteristics1.3.5 Rated Characteristics1.4 SUBMITTALS1.5 QUALITY ASSURANCE1.5.1 Manufacturer1.5.2 Manufacturers Representative1.5.3 Corrosion Engineer1.5.4 Testing Firm1.5.5 Contract drawings1.6 D
4、ELIVERY, STORAGE, AND HANDLING1.7 SITE CONDITIONSPART 2 PRODUCTS2.1 STANDARD PRODUCTS2.2 FACTORY FABRICATED, DIRECT-BURIED DDT SYSTEMS2.2.1 DDT Steam and High Temperature Hot Water Carrier Pipes2.2.2 DDT Condensate Carrier Pipes2.2.3 DDT Carrier Pipe Insulation2.2.4 Insulation Banding and Scrim2.2.5
5、 CasingSECTION 33 61 13 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.6 Casing End Plates, Vents, and Drains2.2.7 Air Space2.2.8 Casing Coating2.2.8.1 Fusion-Bonded Epoxy2.2.8.2 Urethane Elastomer2.2.9 Coating of End Plates and Conduit Ex
6、tending into Manholes2.2.10 Carrier Pipe Guides2.2.11 Anchor Plates2.2.12 Field Connection of Casing Sections2.2.13 Manufacturers Identification2.3 FACTORY FABRICATED, DIRECT-BURIED WSL SYSTEM2.3.1 WSL Steam and Carrier Pipes2.3.2 WSL Condensate Carrier Pipes2.3.3 Casing for Steam and Condensate2.3.
7、4 Pipe Coupling, Steam2.3.5 Pipe Coupling, Condensate2.3.6 WSL Carrier Pipe Insulation2.3.6.1 Calcium Silicate for Steam Systems2.3.6.2 Polyurethane Foam for Steam and Condensate Systems2.3.6.3 Insulation Concentricity2.3.6.4 Insulated Fittings2.3.6.5 Coupling Insulation for Steam Systems2.3.6.6 Cou
8、pling Insulation for Condensate2.3.7 Manufacturers Identification2.3.8 End Seals2.3.8.1 End Seals for Steam Service2.3.8.2 End Seals for Condensate Return Service2.3.9 Test of WSL Systems for Steam Service2.3.9.1 Apparatus2.3.9.2 Test Section2.3.9.3 Resistance to Water Damage and Joint Leakage2.3.9.
9、4 Resistance to Mechanical or Structural Damage2.3.9.5 Resistance to Ground Water Infiltration2.3.9.6 Criteria for Satisfactory Results and Reporting2.3.10 Test of WSL Systems for Condensate Return Service2.4 WATER SPREAD LIMITING POURED-IN-PLACE INSULATION (PIPI) SYSTEM2.4.1 PIPI Steam and High Tem
10、perature Hot Water Carrier Pipes2.4.2 PIPI Condensate Carrier Pipes2.4.3 PIPI Carrier Pipe Insulation2.4.4 Poured-in-Place Insulation - Physical Properties2.4.5 Poured-in-Place Insulation - Thermal Properties2.4.6 Poured-in-Place Insulation - Electrical Properties2.4.7 PIPI System Piping Anchors, Su
11、pports, and Guides2.4.8 PIPI Envelope Penetrations2.5 PIPE INSULATION TYPE AND MINIMUM THICKNESS2.6 HEAT DISTRIBUTION PIPING2.6.1 Steam and High Temperature Hot Water Pipe2.6.1.1 Condensate Pipe2.6.1.2 Joints2.6.2 Fittings2.6.2.1 Butt-Welded2.6.2.2 Socket-Welded2.7 EXPANSION LOOPS AND BENDSPART 3 EX
12、ECUTION3.1 PREPARATION3.1.1 Job Conditions3.1.2 Interruption of Existing ServiceSECTION 33 61 13 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.1.3 Grading3.1.4 Connecting to Existing Work3.1.5 Coordination3.1.6 Variations3.2 DEMOLITION3.2.1
13、 Demolition Procedures3.2.2 Asbestos Removal3.3 PIPE, PIPING JOINTS AND FITTINGS3.3.1 Joint Preparation3.3.2 Direction Changes3.4 WELDING3.4.1 Qualification of Welders3.4.2 Examining Welders3.4.3 Examination Results3.4.4 Beveling3.4.5 Alignment3.4.6 Erection3.4.7 Defective Welds3.4.8 Electrodes3.4.9
14、 Radiographic Testing3.5 HEAT DISTRIBUTION SYSTEM INSTALLATION3.5.1 Verification of Final Elevations3.5.2 Excavation, Trenching, and Backfilling3.5.3 UHDS Manufacturers Representative Responsibilities3.5.4 UHDS Manufacturers Representative Reports3.5.5 Protection3.5.6 Defective Material3.5.7 Cathodi
15、c Protection Installation3.6 TESTS3.6.1 Holiday Testing of Direct-buried System Steel Casings3.6.2 Pneumatic, Hydrostatic and Operational Tests3.6.2.1 Pneumatic Test3.6.2.2 Hydrostatic Test3.6.2.3 Operational Test3.6.3 Deficiencies3.7 VALVE MANHOLES3.8 BURIED UTILITY WARNING AND IDENTIFICATION3.8.1
16、Plastic Marking Tape3.8.2 Markers for Underground Piping3.9 THERMAL PERFORMANCE TESTING3.9.1 Equipment3.9.1.1 Casing Temperature Measurement3.9.1.2 Carrier Pipe Temperature Measurement3.9.1.3 Terminals3.9.2 Thermal Performance Test- End of Section Table of Contents -SECTION 33 61 13 Page 3Provided b
17、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 61 13 (August 2010)-Preparing Activity: USACE SupersedingUFGS-33 61 13 (April 2008)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated July 2
18、010*SECTION 33 61 13PRE-ENGINEERED UNDERGROUND HEAT DISTRIBUTION SYSTEM08/10*NOTE: This guide specification covers the requirements for an insulated underground heat distribution system (UHDS) and/or condensate return system of the pre-engineered type as covered in TM-5-810-17 “Heating and Cooling D
19、istribution Systems“, for steam and high temperature hot water up to 230 degrees C (450 degrees F).Edit this guide specification for project specific requirements by adding, deleting, or revising text. For bracketed items, choose applicable items(s) or insert appropriate information.Remove informati
20、on and requirements not required in respective project, whether or not brackets are present.Comments and suggestions on this guide specification are welcome and should be directed to the technical proponent of the specification. A listing of technical proponents, including their organization designa
21、tion and telephone number, is on the Internet.Recommended changes to a UFGS should be submitted as a Criteria Change Request (CCR).*PART 1 GENERAL*NOTE: Notes are to the Government designer or design Architect/Engineer firm and will not be seen by the Contractor or its subContractors. The designer w
22、ill carefully review all Notes; when submitting the “draft“ specification for review, Notes will remain intact.This specification requires coordination with other design disciplines (examples: cathodic protection, SECTION 33 61 13 Page 4Provided by IHSNot for ResaleNo reproduction or networking perm
23、itted without license from IHS-,-,-trenching and backfill, structural for coordinating manhole structures). The specified systems are capable of transporting steam, condensate, or high temperature hot water. This specification is for systems operating above 120 degrees C (250 degrees F) to a maximum
24、 acceptable pressure and temperature of approximately 2.800 Mpa (gage) (408 psig) and 230 degrees C (450 degrees F), respectively. It should be noted that not all UHDS are acceptable for all site classifications, temperatures, and pressure ratings.The Government designer will establish the site, soi
25、l and groundwater conditions. The contract drawings will show the size, proposed routing (including construction limits) and estimated length of the system. The contract drawings will establish the elevations and show the profiles of the pipe and the existing and finished earth surfaces. Indicate an
26、d identify all obstructions within 8 m (25 feet) of the system centerline, including adjacent or crossing utilities.This guide specification is not for the design of the valve manhole and associated piping and equipment in the valve manhole. Valve manholes and the piping and equipment inside the val
27、ve manholes will be designed and detailed on the contract drawings. Section 33 60 01 VALVES, PIPING, AND EQUIPMENT IN VALVE MANHOLES will be included as part of this project. Include on the drawings a log of soil conditions along the pipe line right-of-way, at pipe depth, which gives, as a minimum,
28、soil classification, moisture content, soil resistivity and pH, bearing strength and unstable conditions.Details at building entries will be provided on the contract drawings to show pipe elevation, floor and grade elevation, building wall construction and existing equipment. Include location of val
29、ve manhole and/or valve boxes, branch runouts, and isolation valves on the contract drawings. Provide details at manhole entries on the contract drawings to show pipe elevations; floor, top, entrance, and grade elevations; manhole wall construction; anchor location and construction; and existing equ
30、ipment and piping.All connections to the UHDS distribution will occur only in manholes.*1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publications are referred to in the text by basic designation only and listed in SECTION 33 6
31、1 13 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-this paragraph by organization, designation, date, and title.Use the Reference Wizards Check Reference feature when you add a RID outside of the Sections Reference Article to automatically pl
32、ace the reference in the Reference Article. Also use the Reference Wizards Check Reference feature to update the issue dates.References not used in the text will automatically be deleted from this section of the project specification when you choose to reconcile references in the publish print proce
33、ss.*The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.AMERICAN ASSOCIATION OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS (AASHTO)AASHTO M 300 (2003; R 2007) Standard Specification f
34、or Inorganic Zinc-Rich PrimerASME INTERNATIONAL (ASME)ASME B16.11 (2009) Forged Fittings, Socket-Welding and ThreadedASME B16.9 (2007) Standard for Factory-Made Wrought Steel Buttwelding FittingsASME B31.1 (2007; Addenda a 2008; Addenda b 2009) Power PipingASME B40.100 (2005) Pressure Gauges and Gau
35、ge AttachmentsASTM INTERNATIONAL (ASTM)ASTM A 106/A 106M (2008) Standard Specification for Seamless Carbon Steel Pipe for High-Temperature ServiceASTM A 134 (1996; R 2005) Standard Specification for Pipe, Steel, Electric-Fusion (Arc)-Welded (Sizes NPS 16 and Over)ASTM A 135/A 135M (2009) Standard Sp
36、ecification for Electric-Resistance-Welded Steel PipeASTM A 139/A 139M (2004) Standard Specification for Electric-Fusion (ARC)-Welded Steel Pipe (NPS 4 and over)ASTM A 167 (1999; R 2009) Standard Specification for Stainless and Heat-Resisting SECTION 33 61 13 Page 6Provided by IHSNot for ResaleNo re
37、production or networking permitted without license from IHS-,-,-Chromium-Nickel Steel Plate, Sheet, and StripASTM A 234/A 234M (2007) Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature ServiceASTM A 36/A 36M (2008) Standard Specificat
38、ion for Carbon Structural SteelASTM A 53/A 53M (2007) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessASTM C 177 (2004) Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate App
39、aratusASTM C 518 (2004) Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter ApparatusASTM C 533 (2009) Standard Specification for Calcium Silicate Block and Pipe Thermal InsulationASTM C 591 (2009) Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate
40、Thermal InsulationASTM D 2310 (2006) Machine-Made “Fiberglass“ (Glass-Fiber-Reinforced Thermosetting-Resin) PipeASTM D 2487 (2006e1) Soils for Engineering Purposes (Unified Soil Classification System)ASTM D 2996 (2001; R 2007e1) Filament-Wound “Fiberglass“ (Glass-Fiber-Reinforced Thermosetting-Resin
41、) PipeISA - INTERNATIONAL SOCIETY OF AUTOMATION (ISA)ISA MC96.1 (1982) Temperature Measurement Thermocouples1.2 DEFINITIONSThe following definitions shall apply to the work.1.2.1 Heat Distribution SystemA complete pre-engineered, underground heat distribution and condensate return system including a
42、ll required components such as carrier pipes, steam pipe, high temperature hot water supply pipe, condensate return pipe, high temperature hot water return pipe, and fittings, anchors, pipe supports, insulation, protective casing, and cathodic protection, for the system supplied. The pre-engineered
43、system SECTION 33 61 13 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-does not include valve manholes and the piping and equipment inside the valve manholes; Section 33 60 01 VALVES, PIPING, AND EQUIPMENT IN VALVE MANHOLES shall be used for p
44、ertinent requirements. The pre-engineered system shall include all piping and components to a point at least 150 mm 6 inches inside the building and valve manhole walls. The UHDS shall not use any part of the building or valve manhole structure as an anchor point.1.2.2 Direct-BuriedA system which is
45、 buried, without the need for a field-fabricated protective enclosure such as a concrete trench or tunnel.1.2.3 UHDS Types*N0TE: From the following subparagraphs, select the applicable type of system to be allowed and remove the other.*1.2.3.1 Drainable-Dryable-Testable (DDT) Direct-BuriedA factory-fabricated system including an air and water-tight outer protective casing, air space and an insulated carrier pipe. Drains and vents are provided at the end plates of th
