1、*USACE / NAVFAC / AFCESA / NASA UFGS-23 22 25.00 40 (February 2011)-Preparing Activity: NASA SupersedingUFGS-23 22 25 (November 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION TABLE OF CONTENTSDIVISION 23 - HEATING, VENTILATING, AND AIR COND
2、ITIONINGSECTION 23 22 25.00 40STEAM VALVES02/11PART 1 GENERAL1.1 REFERENCES1.2 SUBMITTALS1.3 ADMINISTRATIVE REQUIREMENTS1.3.1 Pre-Installation MeetingsPART 2 PRODUCTS2.1 COMPONENTS2.1.1 Dial Cocks2.1.2 Diaphragm Control And Instrument Valves (DCIV)2.2 FABRICATION2.2.1 Gate Valves2.2.1.1 Gate Valves
3、2500 kPa 350 psi2.2.1.2 Gate Valves 1100 kPa 150 psi2.2.1.3 Gate Valves 900 kPa 125 psi2.2.2 Globe And Angle Valves2.2.2.1 Globe And Angle Valves 2500 kPa 350 psi2.2.2.2 Globe And Angle Valves 1100 kPa 150 psi2.2.2.3 Globe And Angle Valves 900 kPa 125 psi2.2.3 Check Valves2.2.3.1 Check Valves 2500 k
4、Pa 350 psi2.2.3.2 Check Valves 900 kPa 125 psi2.2.3.3 Manual Radiator Valves2.2.4 Cone-Plug Balancing Valve (CPBV)2.2.5 Eccentric Plug Valves (EPV)PART 3 EXECUTION3.1 INSTALLATION- End of Section Table of Contents -SECTION 23 22 25.00 40 Page 1Provided by IHSNot for ResaleNo reproduction or networki
5、ng permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-23 22 25.00 40 (February 2011)-Preparing Activity: NASA SupersedingUFGS-23 22 25 (November 2010)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION 23 22 25.00 40STEAM VAL
6、VES02/11*NOTE: This specification covers the requirements for valves for steam and condensate systems.Standard valves for steam, water, etc., operating at 178 degrees C and 900 kilopascal 353 degrees F and 125-pounds per square inch gage working steam pressure are covered in Section 23 05 15 COMMON
7、PIPING FOR HVAC.Adhere to UFC 1-300-02 Unified Facilities Guide Specifications (UFGS) Format Standard when editing this guide specification or preparing new project specification sections. Edit this guide specification for project specific requirements by adding, deleting, or revising text. For brac
8、keted items, choose applicable items(s) or insert appropriate information.Remove information and requirements not required in respective project, whether or not brackets are present.Comments, suggestions and recommended changes for this guide specification are welcome and should be submitted as a Cr
9、iteria Change Request (CCR).*PART 1 GENERAL*NOTE: If Section 23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS is not included in the project specification, applicable requirements therefrom should be inserted and the first paragraph deleted. If Section 40 17 30.00 40 WELDING GENER
10、AL PIPING is not included in the project specification, applicable requirements therefrom should be inserted and the second paragraph deleted.* Section 23 00 00 AIR SUPPLY, DISTRIBUTION, VENTILATION, AND EXHAUST SYSTEMS SECTION 23 22 25.00 40 Page 2Provided by IHSNot for ResaleNo reproduction or net
11、working permitted without license from IHS-,-,-applies to work specified in this section.Section 40 17 30.00 40 WELDING GENERAL PIPING applies to work specified in this section.1.1 REFERENCES*NOTE: This paragraph is used to list the publications cited in the text of the guide specification. The publ
12、ications are referred to in the text by basic designation only and listed in 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 place the reference in the Referen
13、ce 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 process.*The publications listed belo
14、w form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.AMERICAN WELDING SOCIETY (AWS)AWS A5.13 (2010) Specification for Surfacing Electrodes for Shielded Metal Arc WeldingASME INTERNATIONAL (ASME)ASME B1.20.1 (1983
15、; R 2006) Pipe Threads, General Purpose (Inch)ASME B1.20.2M (2006) Pipe Threads, 60 Deg. General Purpose (Metric)ASME B16.1 (2010) Gray Iron Threaded Fittings; Classes 25, 125 and 250ASME B16.34 (2009; Supp 2010) Valves - Flanged, Threaded and Welding EndASTM INTERNATIONAL (ASTM)ASTM A105/A105M (201
16、0a) Standard Specification for Carbon Steel Forgings for Piping ApplicationsASTM A106/A106M (2010) Standard Specification for Seamless Carbon Steel Pipe for High-Temperature ServiceSECTION 23 22 25.00 40 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
17、IHS-,-,-ASTM A126 (2004; R 2009) Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe FittingsASTM A182/A182M (2010a) Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature ServiceASTM A216/A216M (2008)
18、Standard Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature ServiceASTM A436 (1984; R 2006) Standard Specification for Austenitic Gray Iron CastingsASTM B 61 (2008) Standard Specification for Steam or Valve Bronze CastingsASTM B 62 (2009) Standard Specificati
19、on for Composition Bronze or Ounce Metal CastingsISA - INTERNATIONAL SOCIETY OF AUTOMATION (ISA)ISA RP60.9 (1981) Piping Guide for Control CentersMANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS INDUSTRY (MSS)MSS SP-70 (2006) Gray Iron Gate Valves, Flanged and Threaded EndsMSS SP-80 (
20、2008) Bronze Gate, Globe, Angle and Check ValvesMSS SP-86 (2009) Guidelines for Metric Data in Standards for Valves, Flanges, Fittings and ActuatorsU.S. GENERAL SERVICES ADMINISTRATION (GSA)CID A-A-50457 (Rev A; Notice 2) Valves Radiator, Heating Packless Bonnett, Class 125 PSIG1.2 SUBMITTALS*NOTE:
21、Review Submittal Description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the following list to reflect only the submittals required for the project. Submittals should be kept to the minimum required for adequate quality control.A “G” following a submittal item indicates that t
22、he submittal requires Government approval. Some submittals are already marked with a “G”. Only delete an existing “G” if the submittal item is not complex and can be reviewed through the Contractors SECTION 23 22 25.00 40 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted wit
23、hout license from IHS-,-,-Quality Control system. Only add a “G” if the submittal is sufficiently important or complex in context of the project.For submittals requiring Government approval on Army projects, a code of up to three characters within the submittal tags may be used following the “G“ des
24、ignation to indicate the approving authority. Codes for Army projects using the Resident Management System (RMS) are: “AE“ for Architect-Engineer; “DO“ for District Office (Engineering Division or other organization in the District Office); “AO“ for Area Office; “RO“ for Resident Office; and “PO“ fo
25、r Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the first bracketed item for Navy, Air Force and NASA projects, or choose the second bracketed item for Army projects.*Government approval is required for submittals with a “G“ designation;
26、 submittals not having a “G“ designation are for Contractor Quality Control approval.for information only. When used, a designation following the “G“ designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTA
27、L PROCEDURES:SD-02 Shop DrawingsFabrication Drawings; G; G, _Installation Drawings; G; G, _SD-03 Product DataDial Cocks; G; G, _Diaphragm Control And Instrument Valves; G; G, _Gate Valves; G; G, _Globe And Angle Valves; G; G, _Check Valves; G; G, _Cone-Plug Balancing Valve; G; G, _Eccentric Plug Val
28、ves; G; G, _SD-07 CertificatesCertificates of Conformance; G; G, _Listing of Product Installations; G; G, _SECTION 23 22 25.00 40 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3 ADMINISTRATIVE REQUIREMENTS1.3.1 Pre-Installation MeetingsPrio
29、r to commencement of work, submit the following to the Contracting Officer for review and approval:a. Listing of product installations for valve assemblies indicating at least five _ installed units, similar to those proposed for use, that have been in successful service for a minimum of five _ year
30、s, with contact information for verification.b. Submit certificates of conformance for the following items showing conformance to the referenced standards contained in this section:(1) Gate Valves(2) Globe and Angle Valves(3) Check Valves(4) Cone-Plug Balancing Valve(5) Eccentric Plug Valves(6) Dial
31、 Cocks(7) Diaphragm Control and Instrument Valvesc. Fabrication drawings and installation drawings for each type of the following used in the work:(1) Valves(2) AccessoriesPART 2 PRODUCTS2.1 COMPONENTS2.1.1 Dial CocksProvide dial cocks in sizes DN65 2-1/2-inch ips and smaller with pointer and etched
32、 position dial rated 1100 kilopascal 150-psi working steam pressure (wsp) and made of manufacturers standard all-brass construction.2.1.2 Diaphragm Control And Instrument Valves (DCIV)Provide diaphragm control and instrument valves in sizes DN8 and DN10 1/4 and 3/8 inch with a forged-brass body with
33、 reinforced tetrafluoroethylene diaphragm, and an AISI 300 series corrosion-resistant steel spring with round phenolic handle. Fit handle with disks color-coded in accordance with ISA RP60.9.2.2 FABRICATION2.2.1 Gate Valves*SECTION 23 22 25.00 40 Page 6Provided by IHSNot for ResaleNo reproduction or
34、 networking permitted without license from IHS-,-,-NOTE: These valves are recommended for steam and condensate service.*2.2.1.1 Gate Valves 2500 kPa 350 psiRate gate valves 2100 kilopascal 300 pounds per square inch (psi) working steam pressure (wsp) and ensure conformance to ASME B16.34.Ensure body
35、 end connections are flanged for all valves larger than DN50 2 inches, unless butt weld ends are specified. Use Screwed Socket weld for sizes DN50 2 inches and under to suit specified piping system end connection and maintenance requirements, or be welded. Provide flange faces with concentric serrat
36、ed finish.Provide union gasketed-bolted type body to bonnet connection for valves DN50 2 inches and under and gasketed-bolted type for valves larger than DN502 inches. Ensure bonnet is outside screw and yoke (OS i.e., bent. Ensure connection is to valve bosses located to perform specified function.
37、Ship valves with integral bypass bolted to crates in a manner that will preclude damage to bypass assembly.*NOTE: Note on drawings all locations where integral drain valve is required. Integral drain valves are particularly useful in tall risers. Note in all cases where required except where valve s
38、ize is less than DN50 2 inches, in which case provide an independent drain immediately above the valve. Note pitch of horizontal lines.*Factory Field install integral drain valve assembly. Factory drill main valve boss. Weld connection to main valve body. Trim drain valve with manufacturers standard
39、 hardened corrosion-resistant steel. Provide pressure tubing type piping conforming to ASTM A106/A106M, Grade B C. Cap Plug drain discharge, and make threaded closure assembly with tetrafluoroethylene tape. Provide all necessary handling and shipping care.2.2.1.3 Gate Valves 900 kPa 125 psiProvide v
40、alves rated 900 kilopascal 125-psi (wsp) and ensure conformance to MSS SP-80 and MSS SP-86, with wedge disc, rising stem, inside screw, 900 kilopascal 125-pound for sizes DN50 2 inches and under and to MSS SP-70 for sizes over DN50 2 inches.Ensure body end connections are flanged for all valves larg
41、er than DN50 2 inches and screwed in sizes DN50 2 inches and under to suit specified piping system end connection and maintenance requirements.For valves in sizes DN50 2 inches and under, provide union-bonnet type, SECTION 23 22 25.00 40 Page 9Provided by IHSNot for ResaleNo reproduction or networki
42、ng permitted without license from IHS-,-,-made of cast iron conforming to ASTM A126, Class B.Ensure stem is rising and backseating type.Ensure packing is fiber braid impregnated with 30 percent tetrafluoroethylene.Provide cast iron malleable iron wrought steel valve wheels.*NOTE: The following mater
43、ials selection may be desirable as a means of eliminating dissimilar metal couples in a corrosive condensate. Forged steel valve cost premium on per-unit basis is approximately 100 percent.Coordinate the following selection with appropriate selections for 1100 150 service valves.*For condensate service, provide screwed-end gate valves, 1100 kilopascal150-psi, wsp-rated, forged steel, conforming to ASME B16.34, with manufacturers standard corrosion-resistant steel trim.*NOTE: Note on drawings all locations wh
