1、*USACE / NAVFAC / AFCESA / NASA UFGS-46 43 21 (February 2011)-Preparing Activity: NAVFAC Replacing without changeUFGS-44 42 23 (November 2009)UFGS-44 42 23 (April 2006) UFGS-11338 (August 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION TABLE
2、 OF CONTENTSDIVISION 46 - WATER AND WASTEWATER EQUIPMENTSECTION 46 43 21CIRCULAR CLARIFIER EQUIPMENT02/11PART 1 GENERAL1.1 REFERENCES1.2 RELATED REQUIREMENTS1.3 SUBMITTALS1.4 DELIVERY, STORAGE, AND HANDLING1.5 MANUFACTURERS REPRESENTATIVE1.6 POSTED OPERATING INSTRUCTIONS1.7 QUALITY ASSURANCE1.7.1 Dr
3、awing RequirementsPART 2 PRODUCTS2.1 CIRCULAR CLARIFIER, GENERAL2.2 CLARIFIER MECHANISM2.2.1 Design2.2.2 Sludge Collector Assembly2.2.2.1 Scraper Arms2.2.2.2 Center Drive Cage/Drum2.2.2.3 Center Shaft2.2.2.4 Rapid Sludge Removal System2.2.3 Drive Assembly2.2.3.1 Motor2.2.3.2 Speed Reduction and Turn
4、table Gearing2.2.3.3 Gearmotor2.2.3.4 Turntable Bearing Assembly2.2.3.5 Drive Assembly Bearings2.2.3.6 Chain Drives and Belt Drives2.2.4 Scum Removal Assembly2.2.4.1 Skimmer Assembly2.2.4.2 Scum Trough2.2.5 Center Column2.2.6 Access Bridge, Walkway, and Operating Platform2.2.7 Supporting BridgeSECTI
5、ON 46 43 21 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.2.8 Influent Well2.2.9 Influent Skirt2.2.10 Effluent Trough and Weir Assembly2.2.11 Electrical Control System2.2.11.1 Control System Enclosure2.2.11.2 Circuit Breakers2.2.11.3 Motor
6、Starter , Contactors, and Pushbutton Station2.2.11.4 Overload Protection and Alarm Device2.2.11.5 Wiring2.2.12 Lubrication Fittings2.2.13 Key Mounted Connections2.2.14 Weir Plates and Scum Baffles2.3 CLARIFIER PIPING2.3.1 Pipe and Fittings2.3.2 Sleeves and Wall Castings2.4 ANCHOR AND CONNECTING BOLT
7、S, NUTS, AND WASHERS2.5 FIBERGLASS REINFORCED PLASTIC2.6 GROUT MATERIALS2.7 SPARE PARTS2.8 TOOLS2.9 MATERIALS PROTECTIONPART 3 EXECUTION3.1 GENERAL3.2 SURFACING OF CLARIFIER TANK FLOOR3.3 PIPING3.4 WEIRS3.5 REPAIR PAINTING3.6 FIELD TESTS AND INSPECTIONS3.6.1 General3.6.2 Tests- End of Section Table
8、of Contents -SECTION 46 43 21 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-46 43 21 (February 2011)-Preparing Activity: NAVFAC Replacing without changeUFGS-44 42 23 (November 2009)UFGS-44 42 23 (April 200
9、6) UFGS-11338 (August 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated April 2011*SECTION 46 43 21CIRCULAR CLARIFIER EQUIPMENT02/11*NOTE: This guide specification covers the requirements for circular clarifier for use in sewage treatment plants.Adhere to UFC 1-
10、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 bracketed items, choose applicable i
11、tems(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 Criteria Change Request (CCR).*NOT
12、E: This guide specification is for treatment of domestic sewage only. Special consideration must be given to sewage containing industrial wastes.*NOTE: The following information shall be shown on the project drawings or provided by the project designer:1. Type of clarifier: primary or secondary2. Di
13、mensions of clarifier tank3. Whether clarifier is of center feed/peripheral overflow type or peripheral feed/center overflow typeSECTION 46 43 21 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4. Whether influent enters through side of tank or
14、 through center column when clarifier is center feed/peripheral overflow type5. Whether rapid sludge removal system is to be used and the number and size of the sludge uptake pipes6. Size of influent well when clarifier is center feed/peripheral overflow type7. Size and section of effluent trough wh
15、en clarifier is peripheral feed/center overflow type8. Size and section of weirs and baffles; and anchorage details9. Electrical characteristics for motor10. Sizes of piping, points of connection to plant piping, and types of joints for wall castings and sleevesNAVFAC Definitive Designs, P-272, draw
16、ing number 1402886, “Primary and Final Settling Tanks, Circular up to 11 m 35 Feet Diameter“ and 1402887, “Primary and Final Settling Tanks, Circular More Than 11 m 35 Feet Diameter“ show the general layout and arrangement of components and may be used as design guides.This guide specification may b
17、e used to prepare specifications for either primary or secondary clarifiers; where both are used on a project, a separate section should be prepared for each type.*NOTE: Reliability and Maintainability (RAM) Data: A survey by the Naval Facilities Engineering Service Center (NFESC) collected RAM data
18、 on 278 collectors at 134 plants nationwide. The report of survey contains general statistical data rating manufacturers equipment in terms of the average time of operation between breakdowns. Information included in the report may be obtained by calling Dr. D. B. Chan, DSN 551-4191, or commercial (
19、805) 982-4191; or by writing to: Commanding Officer, Naval Facilities Engineering Service Center, Code 411, 560 Center Drive, Port Hueneme, CA 93043-4328.*PART 1 GENERAL1.1 REFERENCES*NOTE: This paragraph is used to list the SECTION 46 43 21 Page 4Provided by IHSNot for ResaleNo reproduction or netw
20、orking permitted without license from IHS-,-,-publications cited in the text of the guide specification. The publications 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
21、 when you add a RID outside of the Sections Reference Article to automatically place 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
22、 specification when you choose to reconcile references in the publish print process.*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.ALUMINUM ASSOCIATION (AA)AA DAF-45 (2003; Reaf
23、firmed 2009) Designation System for Aluminum FinishesAMERICAN BEARING MANUFACTURERS ASSOCIATION (ABMA)ABMA 11 (1990) Load Ratings and Fatigue Life for Roller BearingsABMA 9 (1990; R 2008) Load Ratings and Fatigue Life for Ball BearingsAMERICAN GEAR MANUFACTURERS ASSOCIATION (AGMA)AGMA 2015/915-1 (20
24、02A) Accuracy Classification System - Tangential Measurement Tolerance Tables for Cylindrical GearsAGMA 908 (1989B; R 1999) Information Sheet: Geometry Factors for Determining the Pitting Resistance and Bending Strength of Spur, Helical and Herringbone Gear TeethANSI/AGMA 2009 (2001B; R 2008) Bevel
25、Gear Classification, Tolerances, and Inspection MethodsANSI/AGMA 2011 (1998A; R 2004) Cylindrical Wormgearing Tolerance and Inspection MethodsANSI/AGMA 6001 (2008E) Design and Selection of Components for Enclosed Gear DrivesANSI/AGMA 6013 (2006A) Standard for Industrial Enclosed Gear DrivesSECTION 4
26、6 43 21 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ANSI/AGMA 6034 (1992B; R 2005) Practice for Enclosed Cylindrical Wormgear Speed Reducers and GearmotorsANSI/AGMA 6113 (2006A) Standard for Industrial Enclosed Gear Drives (Metric Edition)A
27、NSI/AGMA 9000 (1990C; R 2008) Flexible Couplings - Potential Unbalance ClassificationANSI/AGMA 9002 (2004B) Bores and Keyways for Flexible Couplings (Inch Series)AMERICAN INSTITUTE OF STEEL CONSTRUCTION (AISC)ANSI/AISC 360 (2005) Specification for Structural Steel BuildingsAMERICAN WATER WORKS ASSOC
28、IATION (AWWA)AWWA C104/A21.4 (2008; Errata 2010) Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for WaterAWWA C110/A21.10 (2008) Ductile-Iron and Gray-Iron Fittings for WaterAWWA C111/A21.11 (2007) Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and FittingsAWWA C115/A21.15 (2005) Flang
29、ed Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded FlangesAWWA C151/A21.51 (2009) Ductile-Iron Pipe, Centrifugally Cast, for WaterAWWA C600 (2010) Installation of Ductile-Iron Water Mains and Their AppurtenancesASME INTERNATIONAL (ASME)ASME B17.1 (1967; R 2008) Keys and KeyseatsASME B17.2
30、(1967; R 2008) Woodruff Keys and KeyseatsASME B18.21.1 (2009) Washers: Helical Spring-Lock, Tooth Lock, and Plain Washers (Inch Series)ASME B18.21.2M (1999; R 2005) Lock Washers (Metric Series)ASME B18.22M (1981; R 2010) Metric Plain WashersASME B29.100 (2002; Errata 2004) Precision Power Transmissi
31、on, Dbl-P-Power Transmission, Dbl-P-conveyor Roller Chains, Attachments and SprocketsSECTION 46 43 21 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASTM INTERNATIONAL (ASTM)ASTM A153/A153M (2009) Standard Specification for Zinc Coating (Hot-D
32、ip) on Iron and Steel HardwareASTM A325 (2010) Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile StrengthASTM A325M (2009) Standard Specification for Structural Bolts, Steel, Heat Treated, 830 MPa Minimum Tensile Strength (Metric)ASTM A36/A36M (2008) Stand
33、ard Specification for Carbon Structural SteelASTM A48/A48M (2003; R 2008) Standard Specification for Gray Iron CastingsASTM A53/A53M (2010) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and SeamlessASTM A563 (2007a) Standard Specification for Carbon and Alloy Stee
34、l NutsASTM A563M (2007) Standard Specification for Carbon and Alloy Steel Nuts (Metric)ASTM B 209 (2007) Standard Specification for Aluminum and Aluminum-Alloy Sheet and PlateASTM B 209M (2007) Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)ASTM B 221 (2008) Standard
35、Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and TubesASTM B 221M (2007) Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)ASTM D 1784 (2008) Standard Specification for Rigid Poly(Vinyl Chloride) (PVC)
36、Compounds and Chlorinated Poly(Vinyl Chloride) (CPVC) CompoundsASTM D 2241 (2009) Standard Specification for Poly(Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series)ASTM D 256 (2010) Determining the Izod Pendulum Impact Resistance of PlasticsASTM D 3034 (2008) Standard Specification for Type PSM
37、Poly(Vinyl Chloride) (PVC) Sewer Pipe and FittingsSECTION 46 43 21 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASTM D 635 (2010) Standard Test Method for Rate of Burning and/or Extent and Time of Burning of Self-Supporting Plastics in a Hor
38、izontal PositionASTM D 638 (2010) Standard Test Method for Tensile Properties of PlasticsASTM E 84 (2010b) Standard Test Method for Surface Burning Characteristics of Building MaterialsASTM F 593 (2002; R 2008) Stainless Steel Bolts, Hex Cap Screws, and StudsASTM F 594 (2009e1) Standard Specificatio
39、n for Stainless Steel NutsNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)NEMA ICS 1 (2000; R 2005; R 2008) Standard for Industrial Control and Systems: General RequirementsNEMA ICS 2 (2000; R 2005; Errata 2008) Standard for Controllers, Contactors, and Overload Relays Rated 600 VNEMA MG 1 (2009
40、) Motors and GeneratorsNATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2011) National Electrical CodeTHE SOCIETY FOR PROTECTIVE COATINGS (SSPC)SSPC SP 10/NACE No. 2 (2007) Near-White Blast CleaningU.S. DEPARTMENT OF DEFENSE (DOD)MIL-DTL-24441 (2009; Rev D) Paint, Epoxy-Polyamide, General Specifi
41、cation for1.2 RELATED REQUIREMENTSSection 23 03 00.00 20 BASIC MECHANICAL METARIALS AND METHODS, applies to this section, with the additions and modifications specified herein.1.3 SUBMITTALS*NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL PROCEDURES and edit the fol
42、lowing 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 the SECTION 46 43 21 Page 8Provided by IHSNot for ResaleNo reproduction or networking permitted without
43、license from IHS-,-,-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 Quality Control system. Only add a “G” if the submittal is sufficiently important o
44、r 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“ designation to indicate the approving authority. Codes for Army projects using the Resident Management System (R
45、MS) 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“ for Project Office. Codes following the “G“ typically are not used for Navy, Air Force, and NASA projects.Choose the fir
