1、*USACE / NAVFAC / AFCESA / NASA UFGS-33 45 00.00 10 (April 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-33 45 00.00 10 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSReferences are in agreement with UMRL dated March 2008*SECTION TABLE OF CONTENTSDIVISION 33 - UTILITIESSECTION 33 45 00.00
2、 10SPEED REDUCERS FOR STORM WATER PUMPS04/08PART 1 GENERAL1.1 UNIT PRICES1.1.1 Speed Reducers for Storm Water Pumps1.1.2 Measurement1.1.3 Unit of Measure1.2 REFERENCES1.3 SYSTEM DESCRIPTION1.3.1 General Product Requirements1.3.2 Design Conditions1.3.2.1 Operating Conditions1.3.2.2 Runaway1.3.2.3 Cri
3、tical Speeds1.3.3 Arrangement1.4 SUBMITTALS1.5 DELIVERY, SORAGE, AND HANDLING1.6 EXTRA MATERIALSPART 2 PRODUCTS2.1 MATERIALS AND EQUIPMENT2.2 BEARINGS2.2.1 Thrust Bearings2.2.2 Radial Bearings2.2.3 Hydrodynamic Fluid Film Bearings2.2.4 Antifriction Bearings2.3 GEARS2.4 SHAFTS2.5 COUPLINGS UNIVERSAL
4、JOINTS2.6 BACKSTOPS2.7 HOUSING2.7.1 General2.7.2 Seals2.7.3 Inspection Covers2.8 LUBRICATION SYSTEM2.8.1 GeneralSECTION 33 45 00.00 10 Page 1Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2.8.2 Oil Pumps2.8.3 Prelubrication Pump2.8.4 Oil and Breathe
5、r Filters2.8.5 Heat Exchanger2.8.6 Cooling Water Control Valve2.8.7 Piping and Tubing2.8.8 Oil Heater2.8.9 Lubricating Oil2.9 INSTRUMENTATIONPART 3 EXECUTION3.1 TESTS, INSPECTIONS, AND VERIFICATIONS3.1.1 Shop Testing3.1.2 Installation3.1.3 Field Testing- End of Section Table of Contents -SECTION 33
6、45 00.00 10 Page 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*USACE / NAVFAC / AFCESA / NASA UFGS-33 45 00.00 10 (April 2008)-Preparing Activity: USACE (CW) SupersedingUFGS-33 45 00.00 10 (April 2006)UNIFIED FACILITIES GUIDE SPECIFICATIONSRefere
7、nces are in agreement with UMRL dated March 2008*SECTION 33 45 00.00 10SPEED REDUCERS FOR STORM WATER PUMPS04/08*NOTES: This guide specification covers the requirements for speed reducers used with vertical impeller pumps.Edit this guide specification for project specific requirements by adding, del
8、eting, or revising text. For bracketed 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 and suggestions on this guide specification are welcome and should be direct
9、ed to the technical proponent of the specification. A listing of technical proponents, including their organization designation 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: This guide specification
10、, as written, is for use in construction contracts for the building of pumping stations. If it is to be used in supply contracts, it should be changed as appropriate.The pump, motor, base, electrical power, engine, and clutch (if used) are all related components but are not included in this specific
11、ation.The epicyclic reducer is reliable and especially well suited to high power applications. It should not normally be deleted as an option if the prime mover has a vertical shaft.*SECTION 33 45 00.00 10 Page 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
12、m IHS-,-,-1.1 UNIT PRICES*NOTE: If Section 01 22 00.00 10 MEASUREMENT AND PAYMENT is included in the project specifications, this paragraph title (UNIT PRICES) should be deleted from this section and the remaining appropriately edited subparagraphs below should be inserted into Section 01 22 00.00 1
13、0.*1.1.1 Speed Reducers for Storm Water PumpsPayment will be made for costs associated with furnishing furnishing and installing installing the speed reducers for storm water pumps as specified.1.1.2 MeasurementSpeed reducers for storm water pumps will be measured for payment based upon each speed r
14、educer furnished furnished and installed installed.1.1.3 Unit of MeasureUnit of measure: each.1.2 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 this p
15、aragraph 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 Reference Article. Also use the Reference Wizards Check Reference feature to update the is
16、sue 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 below form a part of this specification to the extent referenced. The publications are
17、referred to within the text by the basic designation only.AMERICAN BEARING MANUFACTURERS ASSOCIATION (ABMA)ABMA 11 (1990; R 1999) Load Ratings and Fatigue Life for Roller BearingsSECTION 33 45 00.00 10 Page 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
18、S-,-,-ABMA 9 (1990; R 2000) Load Ratings and Fatigue Life for Ball BearingsAMERICAN GEAR MANUFACTURERS ASSOCIATION (AGMA)AGMA 6010 (1997f) Standard for Spur, Helical, Herringbone, and Bevel Enclosed DrivesAGMA 6025 (1998d; R 2004) Sound for Enclosed Helical, Herringbone and Spiral Bevel Gear DrivesA
19、GMA 6123 (2006) Design Manual for Enclosed Epicyclic Gear DrivesAMERICAN PETROLEUM INSTITUTE (API)API RP 686 (1996) Recommended Practice for Machinery Installation and Installation DesignASME INTERNATIONAL (ASME)ASME B31.1 (2007) Power PipingINTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)ISO 16
20、889 (1999) Hydraulic Fluid Power - Multi-Pass Method for Evaluating Filtration Performance of a Filter ElementNATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)NEMA 250 (2003) Enclosures for Electrical Equipment (1000 Volts Maximum)NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70 (2007) National
21、 Electrical Code - 2008 Edition1.3 SYSTEM DESCRIPTION1.3.1 General Product Requirements*NOTES: Where possible to meet the required pump speed with the given prime mover speed, and when the prime mover has a horizontal shaft, a single reduction spiral bevel gear reducer should be chosen. Reduction ra
22、tios of up to 7:1 are practical. Ratios of up to 10:1 are possible but should be used only after consultation with manufacturers. Double reduction reducers may be required when required reduction ratios are too high. Where a vertical shaft prime mover is to be used, the designer should choose betwee
23、n a parallel shaft reducer or an epicyclic reducer. In some cases, this choice may be left to the supplier to allow them to make the most economical selection. SECTION 33 45 00.00 10 Page 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Both of these
24、 types of reducers will provide reliable service. Epicyclic reducers become the preferred choice for high wattage (horsepower) vertical shaft prime movers (above approximately 750 kW (1,000 hp). Again, single reduction reducers should be used where feasible.This section is intended to be used along
25、with Section 22 10 00.00 10 VERTICAL PUMPS, AXIAL-FLOW AND MIXED-FLOW IMPELLER-TYPE. The designer is responsible for determining whether a speed reducer is required or whether a direct drive vertical induction motor can be used to drive the pump. Guidance for making this decision is EM 1110-2-3105,
26、MECHANICAL AND ELECTRICAL DESIGN OF PUMPING STATIONS. An additional section for the prime mover, an electric motor or diesel engine, is also normally added. The intention is for these components to be purchased and installed by the Construction Contractor. Purchase of the three components in a singl
27、e contract allows the supplier to obtain the most optimum combination of components thus reducing costs while not sacrificing reliability. This also makes it feasible for the Contractor to perform dynamic analysis as described in Section 22 10 00.00 10 and be solely responsible for acquiring the nec
28、essary data to perform such analysis. The dynamic analysis is important to ensure the pump, reducer, and motor or engine combination is free of detrimental vibration. If the reducer and prime mover are purchased separately, the designer is responsible to provide additional plans and specifications c
29、overing reducer instrumentation. Provisions for a pump, reducer, and Provisions for a pump, reducer, and prime mover base plate are described in Section 22 10 00.00 10. Pump and reducer alignment is described in Section 22 10 00.00 10. The “Buy American Act“ which will be included in the non-technic
30、al portion of the contract will preclude the use of nondomestic reducers and appurtenances.*The speed reducers shall be designed and manufactured by a firm that is regularly engaged in the manufacture of speed reducers of the type utilized for these installations. The reducer shall display the certi
31、fied manufacturers AGMA insignia as evidence of conformance to these standards. The nameplate shall bear the manufacturers name, model designation, serial number, unit rating, application factor, reduction ratio, and other applicable information. The speed reducer shall be single reduction spiral be
32、vel spiral bevel primary, helical secondary stage single reduction parallel shaft double reduction parallel shaft epicyclic gear type equipped with thrust bearings to make the speed reducer suitable for use with a vertical impeller pump. Where upthrust is possible during pump startup or shutdown, th
33、e thrust bearing shall be designed to resist this load. The speed reducer shall be able to withstand all of the specified operating conditions without damage. A backstop shall be provided to pre-vent reverse rotation of the pump. The gear reducer shall conform to the requirements of AGMA 6010 or AGM
34、A 6123 as applicable.SECTION 33 45 00.00 10 Page 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1.3.2 Design Conditions1.3.2.1 Operating Conditions*NOTES: The speed reducer, pump, and prime mover are intended to be purchased together; responsibilit
35、y for establishing operating loads should be placed on the Contractor. If the speed reducer is purchased separately, the designer must determine the operating loads from pump and prime mover data.For motor stall torque, 350 percent of rated load should be used for induction motors. For diesel engine
36、s, the maximum torque should equal the slip torque of the overload protection device. An air actuated clutch should be used as overload protection.*Obtain the operating conditions from the pump and prime mover suppliers. Operating conditions which shall be considered include (as a minimum): maximum
37、input power, motor or engine speed, speed reducer ratio, maximum pump reverse overspeed, low-speed shaft downward thrust including weight, low-speed shaft momentary upward thrust during startup or shutdown (if applicable), high-speed shaft direction of rotation, low-speed shaft direction of rotation
38、, overhung load, motor stall torque, or maximum engine overload torque transmitted through the clutch, reverse torque load on the backstop.1.3.2.2 Runaway*NOTE: Delete this paragraph for engine-driven units. If emergency closure might not be achieved within 30 minutes, this time period must be incre
39、ased.*The speed reducer shall be designed to withstand backstop failure and maximum pump reverse runaway speed for a period of 30 _ minutes.1.3.2.3 Critical Speeds*NOTE: Dynamic analysis of the pump, reducer, and engine or motor assembly will be performed by the pump manufacturer as described in Sec
40、tion 22 10 00.00 10 VERTICAL PUMPS, AXIAL-FLOW AND MIXED-FLOW IMPELLER-TYPE. If the reducer is purchased separately from the pump, this paragraph will be deleted and responsibility for dynamic analysis, if done, is that of the designer.*Dynamic analysis of the pump, reducer, and motor (engine) assem
41、bly shall be performed by the pump manufacturer. The reducer manufacturer shall coordinate with the pump manufacturer in performing the dynamic analysis. SECTION 33 45 00.00 10 Page 7Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-The reducer manufac
42、turer shall make any design modifications to the reducer which are necessary to avoid resonances in the system. A torsional or lateral natural frequency within 25 percent of normal operating speed of any shaft or gear mesh frequency is unacceptable.1.3.3 Arrangement*NOTE: In making choices as to the
43、 reducer arrangement, the designer must coordinate with the pump (Section 22 10 00.00 10) and prime mover specifications. These contain statements on shaft configuration. The hollow output shaft arrangement is preferred for ease of installation. If the reducer is purchased separately from the pump and prime mover, the designer is responsible for determining input and output shaft details and ensuring the reducer will be compatible. For reducers driven by a diesel engine, an a
