tetml={filename={D:\drim\repository\projects\drim_20_0\metadata\5\6\5615fd027ec36dfbd319991e696dab1e\5615fd027ec36dfbd319991e696dab1e.tet.xml} elements={annotations=false bookmarks=false destinations=false fields=false javascripts = false} } granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} TECHNICAL SPECIFICATION94.03.62.100 BOILER FEEDWATER PUMPS l. SCOPE: This specification is for the design, fabrication, supply and delivery of fourteen (14) Boiler Feedwater Pump (BFP) packages as detailed in the Boiler Feedwater Pump Datasheet (DS). Each pump shall provide feedwater at two (2) different pressure levels to a multi-pressure Heat Recovery Steam Generator (HRSG). Each set of pumps will consist of a 2x100% pair where each pumpis independently designed to deliver the requisite conditions for full duct-fired operation and non-duct-fired operation. The boiler feed pumpsshall take suction from the LP Drum. Each pumpshall have aninter-stage take-off to provide feedwater to the IP economizer. 1.1 The Equipment offered shall be consistent with the best principles and practices of BFP design. Pumps shall be horizontal multi-stage centrifugal type. This specification provides the required details of performance and design. The pumpsshall be identical in all respects, and parts shall be interchangeable. 1.2 Quality: Quality and NDE requirement shall be per Section M4 — Quality and Examination Requirements or approved equivalent. 1.3 Mechanical: Welding shall be per Section M3 — Welding Requirements or approved equivalent. 1.4 Structural: Skid and structural support design and fabrication shall be per Sections S1 — Structural Loading and Design, and S2 — Structural Steel Fabrication and Supply. 1.5 Documentation: A Comprehensive Equipment Manual (CEM) shall be provided. All submittals and manuals shall be per Section GR-B — Engineering Data and Submittal Schedule. The documentation submittal schedule shall be per the Seller’s Deliverable Schedule (SDS). 1.6 Code Requirements: BFPs shall be designed and manufactured per Section GR-A — General Requirements and Scope of Work,all Technical Sections, as noted within, and per the following standards: a. American National Standards Institute / Hydraulic Institute (ANSI/HI) 1.1 — 1.2 af “Rotodynamic Centrifugal Pumps for Nomenclature and Definitions” ANSI/HI 1.3 “Rotodynamic Centrifugal Pumps for Design and Applications” ANSIJ/HI 9.6.1 “Rotodynamic Pumps — Guideline for NPSH Margin” d. ANSI/HI 9.6.3 Rotodynamic for Centrifugal and Vertical Pumps for Allowable Operating Region” e. ANSI/HI 14.6 “Rotodynamic Pumps for Hydraulic Performance Acceptance Tests” HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-1 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} f. American Petroleum Institute (API) 682 “Pumps-Shaft Sealing Systems for Centrifugal and Rotary Pumps” 2. DESIGN CONSIDERATIONS: Pumps and drivers shall be designed to operate free of harmful vibration or excessive noisc, as defined in this specification, under all recommendedoperating conditions and all cases specified in the DS. 2.1 Stresses: The pumps shall safely withstand momentary stresses due to the following without the need for prewarming; an operating pressure of the pump casingat least 10% higher than the pressure generated by the pump at zero flow while operating at the maximumrotational speed with the maximum suction pressure listed in the DS while using water at 60 °F. The pumpsshall be designed to pump water without undue temperature strains being set up within the unit that may cause warping, buckling, misalignment, rubbing, or any other objectionable effect. 2.2 Sudden Water Temperature Changes: The pumps shall be designed to handle sudden changes in water temperature under all conditions of load and operate for extended periods on cold (ambient) water during start-up and cold starts without damage. The pumpsshall be capable of operating in daily cycling mode, including load following and daily startups and shutdowns per Section GR-A. 2.3 Starting Condition: The pumps shall be allowed to start at cold (minimum ambient) condition, hot (water design temperature) condition, or at any temperature in between without time constraints, other than that required by the motor. No cool down period shall be required betweenstarts. Seller’s design shall not preclude the pumpsfrom starting in a condition wherein a temperature gradient may exist across the pump and/orrotorin any direction. 2.4 Piping: Seller’s design shall not require external piping connections to be routed by Others. 2.5 Working Range: The pumpsshall be capable of continuoussatisfactory operation during unit startup and at total heads and capacities ranging from minimum continuousstable flow (MCSF) to runout flow over the speed range from design speed to minimum speed (as defined by Seller, but no less than 2.5:1 turndown from design speed). 2.5.1 Runout Flow: The pumpshall be hydraulically capable of runout flows of 120% of either the curve-defining operating point, or the maximum flow case as defined in the DS, whicheveris greater. For variable speed pumps, the runout flow capability shall be tested at the pumpspeedthat delivers the flow and head specified for the speed-defining case ofthose listed in the DS. Seller shall represent this additional runout hydraulic capability as a dashed continuation of the pump performancecurve. 2.5.2 Recirculation Flow: At light loads and during boiler startup, a portion of the discharge feedwater shall be recirculated and returned to the Low Pressure Steam Drumthrough a controlled recirculation system (by Buyer). HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-2 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 2.5.2.1 Suction specific speed shall be limited to nominally 10,000 (USGPM, ft), but no greater than 12,000 (USGPM, ft). 2.5.2.2 The minimum continuous thermal flow is defined as the lowest flow at which the pump can continuously operate without being impaired by the temperature rise of the pumped liquid. The minimum continuousstable flow shall be defined as the lowest flow at which the pumpcancontinuously operate without exceeding the Seller’s vibration limits or vibration limits imposed by the API standard, whichever are morerestrictive. 2.6 Shutoff Head: The head capacity characteristic curve shall be one that rises steadily from rated condition back to shutoff condition. Based upon the class/rating of the discharge piping, the rise-to-shutoff should be nominally 120 %, +/-5% of the curve-defining, rated condition oras limited by the established HRSG designconditions. 2.7 Efficiency: The maximumefficiency point (BEP) for each pump shall occur near the guaranteed pump capacity point. For variable speed pumps, the Seller shall provide performance curves for each operating Case in the DS, both with the proposal and as a formal submittal. 2.8 Flashing: The pumpsshall be designed to be capable of withstanding flashing at the suction for short durations. This condition may occur immediately after a full load trip of the HRSG. Pumpsshall not be designed for repeated or sustained flashing. 2.9 Net Positive Suction Head: The pumpsshall be designed to have an NPSHk to result ina NPSHa/NPSHk ratio no less than 1.5 across the acceptable operating range, including runout. 2.10 Prime Mover: The pumpsshall be driven by an induction electric motor and a variable speed fluid coupling. Motors shall meet the design and test criteria per Section E] Motors, Induction, Squirrel Cage Type. Seller shall submit completed Motor Data Sheets from Section El with the proposal. Each fluid coupling shall undergo a manufacturer’s standard no- load, factory performancetest to confirm the mechanical losses at various scoop tube positions; at minimum,these positions shall be 0%, 50%, and 100%. Seller shall submit the fluid coupling test report. 2.10.1 Motors shall be sized for the runout flow conditions defined herein for the supplied impellers. The motor shall be designed to drive the pump and hydraulic coupling at the following conditions: 2.10.1.1 The pumpskid will deliver the performance specified at each case in the DS and not exceed the motor rating with a 1.0 service factor. The motorshall be rated for the greater of either the maximum power required by the pumpat the specified cases or at least 115% of the powerrequired by each case condition other than maximum powercase. The motorrating sizing is to include: HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-3 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} a. The acceptancetolerances that may increase the pump power consumption. b. At least 10%allowanceshall be added to the maximum powercase to accountfor pumpwear. 2.11 Warm up: The pumpsshall be designed to withstand (i.e. not result in excessive vibration due to differential heating on impellers, diffusers, shaft, and casing) a start at which the pumpis initially at a minimum temperature of 60°F, within the heated noise enclosure, and is immediately subjected to the feedwater temperatures listed in the DS without pre-warming the pumpcasing. This operating mode will be considered as an exceptional, not frequent or normal operating condition. 2.12 Design Similarity: All parts, including but not limited to the pumps, couplings, drivers, baseplate, etc. shall be duplicated in all respects and like parts utilized for interchangeability. Any skidded equipment shall conform to Sections M1 — General Mechanical Requirements and 12 — Instrumentation. 2.13 Drains: Seller shall provide suitable drain connection points to drain the pump whenisolated at the suction, IP, and HP discharge nozzles. 2.14 Flushing: Feedwater piping will be chemically cleaned andflushed priorto initial boiler start-up, during which the pumps will be bypassed. A high pH boil out will be performed during boiler commissioning, during which the pumpswill be bypassed. 2.15 Suction Strainers: Buyer will provide in-line suction strainers with the recommended meshinstalled for each pump. A 60 mesh screen and perforated plate shall be used for startup operation, whereas a 40 mesh screen and perforated plate shall be used for normal operation. Seller shall provide the recommended strainer mesh size for startup and normaloperationsif different from those listed above. 2.16 Arrangement: All pumps shall be installed on skids in positions convenient for operation and servicing per Section GR-C — Component Access. Each pumpandits associated equipment shall be arranged in such a manner as to permit easy access for operation, maintenance, and pump removal. Lifting lugs, eyebolts, and other special tackle shall be provided to permit easy handling and removalof the pump and its components. 3. CONSTRUCTION: 3.1 Case: Boiler feedwater pumpsshall be of the type as described in the DS. Pumps shall be furnished with replaceable casing wear rings. Pumpshall be furnished with casing wear rings. Pumpshall be centerline supported to ensure alignmentis maintained at elevated operating temperatures. The components shall be designed for high working pressures, defined as cold suction conditions at pump shutoff with maximumsuction pressure. The centerline supports shall be integral to the suction/discharge heads and pumpcasingto transfer all nozzle loads directly to the baseplate. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-4 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 3.1.1 Buyer connections shall be raised face flanges sized per ANSI. Ring-type joint (RTJ) flanges are not acceptable. All high-energy case connections, including but not limited to drains, vents, gages, and seal flushes, shall be seal welded or flanged. Threaded connections are not allowed. 3.2 Seals: Seller’s seal design may or may not be housed in a water-cooled jacket. Minimumand maximumcooling water temperatures for the seals and jacket, if applicable, are stated in Section GR-A. Seal piping shall be factory installed. If required, the seal piping arrangementshall be in accordance with API Standard 682, Plan 23 and the cooling water piping shall be in accordance with API Standard 610, Plans K or M. The plan shall include cooler seal flush and vent piping, a magnetic separator (if required in the DS), and temperature indicatorat the cooler outlet, in addition to Seller’s standard fittings for temperature and_ pressure. Mechanical seal materials shall be in accordance with the requirements in the DS. Renewable shaft sleeves shall be provided for mechanicalseals. 3.3 Mechanical Seal Flush Systems: If needed to supplement the seal cooling system specified herein, mechanical seal flush systems shall be required to provide cool, clean fluid for flushing the seal faces and pressurizing the stuffing boxes to provide the seal with the proper environment for a long seal life. Seal flush supply shall be taken local to the BFP in a closed loop, cooled by the closed cooling water system through a seal watercooler. 3.4 Shaft: Pump shaft shall be ofsufficient diameter to operate with low stress levels and shall have bearing spacing such that deflection is minimized over the entire operating range from MCSFto runout capacity. The shaft design shall incorporate a staggered keyway to transmit torque. The axial thrust shall be applied over a conservatively designed shoulder and split ring groove. All shoulders shall have generousfillet radii to reduce stress concentrations Pressure reducing sleeves or bushings shall be fastened to the shaft in a similar manner where appropriate. Shaft slingers shall be provided to prevent gland leakage water from entering the bearing housing. If necessary, labyrinth seals shall be provided to prevent contamination of the bearing housings. 3.5 Stuffing Box: The stuffing boxes shall be designed to withstand maximum suction pressure and to accept mechanical seals. The seals shall be serviced without disturbing suction and discharge piping, tie rods, or main pump bundle. The stuffing box shall be sealed to the heads by meansofa centering fit and ethylene propylene O-rings. 3.6 Impellers: The impellers shall be of the enclosed type with each impeller optimized for hydraulic performance. If required by Seller’s design, each impeller shall be furnished with a wear ring. The impeller surface shall be inspected per Seller’s quality standards before and after machining. The running clearance at both surfaces shall be per API and shall have no less than a 58 BHN differential in surface hardness. Pump impellers shall be statically balanced. Hydraulic passages within the impellers shall have anas-cast finish. 3.6.1 The impellers shall be sized on the shaft and held in place via stacked impeller arrangement. Impellers shall be assembled such that hydraulic and centrifugal forces tend to HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-5 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} assure positive seating of the impeller. The impeller to shaft fit should require a clearance fit that is keyed and locked at elevated suction temperatures. The entire rotor assembly shall be dynamically balanced. 3.7 Diffusers: The diffusers shall be precision cast or forged to optimize the surface finish and to provide sound, void-free castings. Diffusers on high-energy applications shall be shrouded to eliminate the possibility of vane breakage due to metal fatigue. Each diffuser shall be inspected per Seller’s quality standards before and after machining and a visual inspection report shall be available upon request. All critical dimensions shall be checked, and non- destructive testing shall be performed as required perSeller’s standard quality plan. 3.8 Rotor: The pumps shall be designed such that rotor dynamic stability is guaranteed during the operation of the conditions described in the DS. There shall be no critical speeds ofthe assembled rotor below 120% ofthe rated speed. Each runningfit on the rotorshall be checked to ensure proper clearance, concentricity, and minimum runout. Final rotating assembly shall be balanced to ISO 21940-11, G2.5. 3.9 Wear Rings and Sleeves: To ensure maximumreliability at the runningfit, impeller rings or renewable casing rings shall be employed to ensure the maintainability of the unit and allow renewable running clearances. The rings shall be assembled into the stage casings using an shrink fit. All circular parts such as rings and sleeves must meetstringent tolerances for concentricity and parallelism of surfaces. 3.10 Bearings: Radial journal bearings shall be sleeve pressure or hydrodynamictype. Bearing housings shall be dust-reduced with labyrinth rings and shall prevent the entrance of water into the housing and leaking of lubricant along the shaft. Axial thrust shall be accommodated bya tilting-pad thrust bearing. 3.11 Balance Device: Hydraulic balancing of the axial thrust generated by the impellers shall be accomplished using one of the following arrangements, as specified in the DS. The balancing device shall be treated stainless steel or alloy steel suitable for the service. The balancing device, in conjunction with the tilting pad thrust bearing, shall be designed to completely balance the thrust during the operating conditions described in the DS. The balancing device shall be sized conservatively to reduce stress levels in highly loaded areas. The clearance shall be self-compensating or be such that it can be easily renewed. The balancing device shall be such that it may be replaced or re-machinedin the field without removing the suction or discharge piping, tie rods, or casing components. The following are options to the seller: 3.11.1 Balance Disc: This device shall be provided with a titling pad thrust bearing that will separate the rotating balance disc from its stationary seat during pumpstartup and shutdown. 3.11.2 Balance Piston: The piston maybeofa straight or stepped geometry. This device shall work with an external tilting pad thrust bearing. Approximately 2 to 5% of the axial load shall be carried by the titling pad thrust bearing as a preload for the bearing and to ensure the HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-6 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} pumprotor does not move axially under normal operation. Seller shall state the axial load limit ofthe thrust bearing in their proposal. 3.12 Balance Leak-Off Line: If a balancing line is required by design, Seller shall provide pressure reduction suitable for the required pressure and temperature. No Buyer connectionsshall be required for the balancingline. 3.13 Lubrication System: Seller shall provide a forced feed lubricating oil system to provide lubricating oil to the pump and motorbearings. The supply and return oil piping shall be stainless steel. There shall be sufficient valves, instrumentation, controlling devices, and accessories to function underall operating loads, over the entire range of ambient temperatures, and with sufficient flanges to facilitate system maintenance and flushing. A low level switch shall be provided. Bearing lubricants shall contain a corrosion inhibitor. The type and grade of lubricant shall be indicated on a nameplate attachment to the motor frame or end shield adjacent to the lubricant-filling device. Refer to Specification El for information regarding a forced lubrication system. The lube oil system shall include the following components orfunctions: 3.13.1 Full-capacity electric type heater for the lube oil reservoir with all required controls including contactor to allow the pump and hydraulic coupling start permissives to be met, without Operator intervention of the cooling water system, at the lowest specified ambient temperature and lowest specified cooling water temperature. 3.13.2 Reservoir shall be sized per manufacturer’s standard retention time. Fittings for side stream filtering / conditioning shall be provided on the reservoir. The reservoir shall be stainless steel, unless it is an integral part of a fluid coupling, in which case it shall be coated carbonsteel. 3.13.3 Duplex filters with local differential pressure indication and high differential pressure alarm switches shall be provided. 3.13.4 A shaft-driven oil supply pumpshall be provided. An A/C backup pumpshall be provided in addition to supply all bearings from the commonoil system. 3.13.5 Sight glasses shall be provided in each bearing drainline. 3.13.6 Flow at each bearing supply shall be controlled through fixed orifices or valves that can be locked in position after adjustment. 3.14 Connections: Connections shall be adequately sized and of the proper pressure class for the design conditions stated in the DS. Should Seller’s design require multiple interstage tappings for the intermediate pressure takeoff, Seller shall manifold the connections to allow for a single piping connection point. All manifold branch connections shall be made with pipe fittings or include an adequately sized reinforcement pad per ASME B31.1. A connection for a pressure transmitter shall be provideat the first stage discharge and shall be used during the NPSHktest. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-7 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 3.15 Allowable Nozzle Loadings: The Suction IP and HP discharge connections shall be provided such that the simultaneous allowable nozzle loading due to external piping vectors shall be at minimumtwo (2) times the allowable reactions recommendedbythelatest edition of API 610 (Table 5). See Section M1 for additional minimum nozzle loading design considerations. 3.16 Baseplate: Seller shall furnish an API-Type, without slope, baseplate to accommodate the pump, driver, coolers, bearing lubrication system and extend beyond the perimeter of all the equipment. The baseplate shall be of heavy rigid construction, allow for external forces to two (2) times API 610 latest revision requirements, and shall be made of suitable structural steel members to provide a stable platform for the pump, driver, and accessories. 3.16.1 The baseplate shall be suitably reinforced and braced to minimize deflection or bending during shipment and to allow setting of the baseplate without removal of the pump or hydraulic coupling (if applicable) from the baseplate. Open baseplate or sufficient grout holes (minimum 6-inch (150 mm) diameter) and grouting area vent holes in cach section of the baseplate or each grout space shall be provided Seller shall advise anchor bolt sizes to be supplied by Buyer. Anchorbolt sizes shall be Standard English units. 3.16.2 The pumpand driver shall be mounted on the baseplate and aligned in the factory prior to shipment. A “dummy”driver and coupleris acceptable for factory alignment. The pump shall be mounted on the baseplate in the factory and shipped as a unit with temporary wood blocking to prevent any deformation of the baseplate during shipment and erection. The driver shall be shipped separately. The baseplate shall be provided with lifting lugs, horizontal alignment screws, and leveling screws to facilitate proper installation. Baseplate shall be rigid enough so that pumps are delivered completely assembled and the baseplate will not deflect whenlifted. The baseplate shall include provisions to contain 115%ofthe lubricant contained in the skid. The baseplate shall be able to collect drainage and include a single point drain connection with a ball valve. 3.16.3 For Drivers with main terminal boxesthat are unable to be supported by the driver frame, these terminal boxes will be mounted off the baseplate by Buyer, all required hardware to complete connections between driver and terminal box shall be provided by the Seller. Motors shall be installed after baseplate has been set. The feedwater pump and motorshall each be individually mounted such that they can be easily removed for a quick changeout. Piping will be routed so that it does not interfere with this operation. 3.17 Coupling: Seller shall provide an all metal, flexible disk or diaphragm, non- lubricated spacer type coupling to suit operating speed, horsepower, and service requirements with a service factor of no less than 1.5 times the maximum torque. The flexible coupling, mounted on a cylindrical pump shaft extension, shall facilitate removal of the inboard bearing- housing assembly and cartridge mounted seal assembly for easy maintenance. Exposed coupling HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-8 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} shall be covered with solid metal non-sparking guard rigidly supported from the baseplate. Coupling guards will have closed ends in accordance with OSHA requirements. 3.17.1 Motor Coupling Hub Option: Seller shall offer an option for shop-installation of motor coupling hubs before shippingto Site. 3.18 Cooling Water Piping: Seller shall provide single Buyerinterface connections for cooling water supply and return. Seller is responsible for distributing cooling water to and from the seal coolers, lube oil cooler, and jacket cooling (if applicable). Flexible piping may be used for ease of fitting and to avoid imposing additional stresses on pump components. Piping with valves shall be assembled in the factory as completely as possible on the pumpbaseplate. 3.18.1 Piping shall be per Section M1. Where ANSI or ASTMstandardsare referenced, equivalent DIN and JIS standards shall also be acceptable. 3.19 Seller Experience: All manufacturer’s standard devices, accessories, valves, controls and appurtenances shall be manufactured by suppliers experienced in the work. New, untried and/or prototype designs are not acceptable. 4. MATERIALS: Pump componentsshall be fabricated from materials as specified by API 610 Column C6 except as modified in the DS. Where materials are not specified, Seller's standard that is applicable to the service shall be acceptable with Buyer’s approval. Where ANSI or ASTMstandardsare referenced, equivalent DIN orJIS standards shall also be acceptable. 5. SHOP APPLIED COATINGS: Unless otherwise specified, all pumps, skids, and non-corrosion resistant surfaces shall be provided with a factory installed protective coating per Section Pl — Shop Applied Coatings. The pump, coupling, lubrication system, driver, carbon steel piping and complete baseplate assembly shall be thoroughly cleaned and prepared for the application ofpaint coatings in strict accordance with the paint manufacturer's recommendations. Those surfaces not receiving paint coatings such as bearing surfaces, internal piping and conncction surfaces, shall be adequately protected by removable tape or other means. Seller has option to provide finish paint for touch-up painting at the project site. One (1) gallon (four (4) liters) (minimum) shall be provided for each type/color of finish paint used or Seller shall provide the information needed for Buyer to procure the touchup paint locally. 6. SPECIAL TOOLS: One (1) set of new, unused special tools and devices, if required for operation and maintenance,shall be furnished and delivered with the Equipmentin a separate container. All special tools and devices required for installation shall be furnished on a temporary basis free of charge to Buyer. 7. SPARE PARTS: Seller shall furnish with their proposal a complete list of recommendedstartup and operational spare, including pricing. The base bid shall include the supply of the following for each pump: 7.1 One(1) set of spare gaskets and O-rings. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-9 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 7.2 One (1) mechanicalseal repair kit 7.3 One (1) spareset ofoil filters for each skid. 8. TESTING: Seller shall include as part of their proposal a section that describes the shop tests to be conducted prior to shipment of pumps to the Job Site. Buyer shall have the opportunity to commentto the procedure whenit is again submitted as required by the SDS. 8.1 Hydrostatic Test: Seller shall perform a non-witnessed hydrostatic test on thefirst pumppriorto performancetest. Seller shall provide certified copies ofthe test. 8.1.1 Test shall follow Hydraulic Institute requirements, test pressure shall be at least 1.5 times design pressure per HI or JIS standards, and the minimum recommendedtime for the test is 30 minutes. 8.1.2 Mechanical seal shall not be used during hydrostatic test. Water to be used for hydrostatic test must have a maximumchlorides content of 50 ppm. Pumps must be cleaned and dried after hydrostatic test. 8.1.3 Test will be acceptable if there is not any leak at welding joints and flanged connections. 8.1.4 If hydrostatic test is not acceptable, supplier must make suitable repairs. After correction hydrostatic test must be repeated. 8.2 Performance Test: Seller shall perform a single witnessed performance test on a single pumppriortofirst shipment with shop motor and shall perform unwitnessed performance tests on the balance of pumps. Buyerreserved the right to request more than a single pump performance test at Buyer’s expense. Seller shall provide certified copies of the test curves and dynamic balancecertificate for couplings in accordance with the SDS. Tests shall be run at rated speed on each pump. The test curves shall be developed by measuring a minimum often (10) test points covering the full pump range from MCSFto the pumprunout flow with the tapping closed. These curves shall show HP and IP TDH, horsepower, and efficiency plotted against flow. In addition, the following operating points shall be tested with the tapping open to demonstrate the expected tapping flow and headat the following conditions: 8.2.1 Pumpdesign point(i.e. curve-defining case) 8.2.2 Pump guarantee point(s) 8.3 Post-Test Inspection: Buyer may witness a post-test inspection (PTT) to verify all surfaces and fits are within design tolerance. Any damage or deviation will require repair and re- test. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-10 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 8.4 NPSH Test: A witnessed NPSHr test (based on head reduction percentage specified in the DS) shall be performed on one of the pumps at MCSF,design, and runout with cold water. For the NPSHrtest, the 3%head loss shall be measuredatthe first stage discharge. 8.5 Vibration: A vibration measurementat all test points from MCSF to runout flow shall be included for each bearing in both the x and y directions. Oneset of vibration readings (two readings, 90° apart) and an axial position reading shall be taken on each pump bearing housing during shoptesting and the results provided to Buyer. 8.6 Test Temperature: Tests shall be conducted "cold" with ambient indoor temperature [no warmer than 100 °F (38 °C)] water but the plotted curves shall be corrected to the design conditions. Test data shall be approved by Buyerprior to shipment. Buyershall be notified prior to shop tests in accordance with the SDS and shall have the option of witnessing the performance and NPSHr tests. 9. PERFORMANCE GUARANTEES: The pumpsshall be guaranteed to deliver at least the specified flow at the specified head for all conditions listed in the DS. Seller shall guarantee the pumps will operate over the entire specified range including minimum stable continuous flow without excessive noise, cavitation, vibration, or pitting. The pumps shall be guaranteed to operate satisfactorily either individually or in parallel or when taking one (1) pump out of service or bringing on one (1) stand-by pumpwhile the other pumpisin service. 9.1 Values and Tolerances: Seller shall guarantee the pump's HPandIP total dynamic head, efficiency and motor input power consumption (kW) at the HP and IP guarantee flow rates in the Guaranteed Case(s). Pump performance shall be per Hydraulic Institute-14.6 tolerances, acceptance grade 1U, except total head shall be limited to +3%. Motorefficiency shall be per IEEE standards. 9.2 Seller Obligations: The pumpswill be tested in the field during Plant performance testing to verify their performance. Failure of the pumps to meet the guaranteed performance on flow rate and TDH shall result in a “make good” obligation on the Seller to correct pump deficiencies that prevent this guarantee from being met. Failure of the pumps to meet the guaranteed performancefor kW shall result in liquidated damagesas defined in the Agreement. 10. NOISE LIMITATIONS: Noise levels shall be per Section GR-A and the DS. Seller shall provide appropriate acoustical treatment for installation by Buyer or Owner. I]. INSTRUMENTATION: | Seller shall provide the required instrumentation to monitor operating and alarm conditions of the pump, including bearing temperature and vibration sensors, and vibration detecting equipment. As a minimum, each pumpshall be furnished with the following instrumentation as specified elsewhere in these Specifications. Seller shall provide a drawing depicting mounting location of each instrument. See Sections E1, E2 — Seller Furnished Controls and Wiring and 12, for more details. Minimum requirements are as follows: HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-11 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 11.1 Two (2) dual element Type K thermocouples, one (1) in each pumpradial bearing as specified in Section El. 11.2 Two (2) dual clement Type K thermocouples, one (1) cach on inboard and outboard sides of thrust bearing as specified in Section E1. Two (2) pressure gauges; one (1) to monitor IP discharge pressure, and one (1) to monitor HP discharge pressure. Gauges shall be provided with pulsation dampening as needed. Gaugesshall be provided with dualisolation valves. 11.3 Cooling waterreturn-side sight flow indicator on each cooleroutlet. 11.4 Seal flush supply-side temperature gauges. 11.5 Motor RTD and Thermocouple requirements as specified in Section E]. 11.6 Lube oil return-side sight flow indicators for each pump and motorbearing. 11.7 Lubeoil return-side type K thermocouple at each pump motor(if force lubricated) bearing. 11.8 Lubeoil inlet and outlet temperature gaugesfor lube oil cooler. 11.9 Lubeoil filter differential pressure indicating transmitter. 11.10 Lube oil supply-side pressure indicating transmitter located downstream offilter and cooler. 11.11 Lube oil supply side Type K thermocouple located downstreamofcooler. 11.12 Oil sump Type K thermocouple 11.13 Oil sump temperature gauge 11.14 Working oil inlet and outlet temperature gauges for working o11 cooler. 11.15 Two (2) working oil Type K thermocouples, one each located upstream and downstream of cooler. 11.16 Fluid coupling outlet tachometer will be a speed sensor on pumpandinlet will be a speed sensor on motor. 12. VIBRATION MONITORING SYSTEM:The vibration probes/sensors shall be per Sections El and E2, and any additional requirements below. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-12 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 12.1 Vibration Equipment: The vibration probe/sensor power and control signals shall be wired to a junction box containing separate terminal blocks for the power and control leads. Each pump and motorradial bearing shall be provided with XY proximity probes. The thrust bearing for each pump shall be provided with two axial proximity probes. For hydraulically coupled pumps and motors, two key phasors shall be provided; one for the motor and onefor the pump. Hydraulic couplings shall be provided with coupling housing vibration velocity contact probe; one near the input shaft bearing and one near the output shaft bearing. The shafts shall be burnished in the area where proximity probesare used. 12.1.1 Seller shall supply all field probes/sensors, signal modulator/demodulators, amplifiers, junction boxes and other accessories compatible with GE provided monitoring racks (procured separately by Buyer). All field devices shall be wired to the Junction boxes complete with signal amplifiers as appropriate. 12.1.2 The vibration probe/sensor powerand control signals shall be wired to a junction box containing separate terminal blocks for the power and control leads. Wiring from local junction box to the VMSpanel is by Buyer. Seller shall supply vibration monitoring probes in accordancewith the below requirements and API 670, Section 7. Seller shall notify Buyer where the below requirements conflict with API 670, Section 7. 12.1.3 Each pump and motor radial bearing shall be provided with XY proximity probes. The thrust bearing for each pumpshall be provided with two axial proximity probes. For hydraulically coupled pumps and motors, two key phasors shall be provided: one for the motor and one for the pump. For hydraulic coupling roller element bearings, each coupling housing shall be provided. 12.2 Vibration Acceptance: The following vibration criteria shall be met with the pump operating within the preferred operating range of 70-120% ofthe best efficiency point. Seller shall advise vibration alarm andtrip set points. 12.2.1 Vibration Displacement: As measured at project site, the vibration displacement readings at the pump radial bearings shall not exceed the peak-to-peak vibration displacement limit from ISO 10816-7 Zone A (33% of the bearing clearancein its newstate). 12.2.2 Vibration Velocity: As measuredat project site, the vibration velocity readingsat the pump radial bearings (by means of deriving the displacement signal from the proximity probes) and motor radial bearings shall not exceed the RMS vibration velocity limit from ISO 10816-7 Zone A, Category I (3.5 mm/s RMS). 12.3 Vibration Interference: Vibration equipment supplied shall include sufficient radio frequency shielding to eliminate radio frequency interference from a keyed communication radio within two feet of the vibration sensor. HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-13 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved. granularity=word contentanalysis={punctuationbreaks=false dehyphenate=false} layoutanalysis={tabledetect=0 layoutdetect=0} 13. INSULATION AND LAGGING: Seller shall provide Blanket type insulation for the pump ring sections and all other exposed surfaces, including oil piping, for personnel protection. Sufficient insulation shall be installed to maintain a maximum surface temperature as specified in the DSat all plant operating points and ambient conditions. The blankets shall require minimaleffort to remove for maintenance access. END OF SECTION HomerCity Generation Boiler Feedwater Pumps Kiewit Project No. 20059040 TS-14 94.03.62.100/0/Issued for Contract Kiewit Confidential & Proprietary Information. All Rights Reserved.