PIP REDP003 Documentation Requirements for High Power Centrifugal Pumps for Water Service

Transcription

1 COMPLETE REVISION October 2013 Process Industry Practices Machinery PIP REDP003 Documentation Requirements for High Power Centrifugal Pumps for Water Service

2 PURPOSE AND USE OF PROCESS INDUSTRY PRACTICES In an effort to minimize the cost of process industry facilities, this Practice has been prepared from the technical requirements in the existing standards of major industrial users, contractors, or standards organizations. By harmonizing these technical requirements into a single set of Practices, administrative, application, and engineering costs to both the purchaser and the manufacturer should be reduced. While this Practice is expected to incorporate the majority of requirements of most users, individual applications may involve requirements that will be appended to and take precedence over this Practice. Determinations concerning fitness for purpose and particular matters or application of the Practice to particular project or engineering situations should not be made solely on information contained in these materials. The use of trade names from time to time should not be viewed as an expression of preference but rather recognized as normal usage in the trade. Other brands having the same specifications are equally correct and may be substituted for those named. All Practices or guidelines are intended to be consistent with applicable laws and regulations including OSHA requirements. To the extent these Practices or guidelines should conflict with OSHA or other applicable laws or regulations, such laws or regulations must be followed. Consult an appropriate professional before applying or acting on any material contained in or suggested by the Practice. This Practice is subject to revision at any time. Process Industry Practices (PIP), Construction Industry Institute, The University of Texas at Austin, 3925 West Braker Lane (R4500), Austin, Texas PIP Member Companies and Subscribers may copy this Practice for their internal use. Changes or modifications of any kind are not permitted within any PIP Practice without the express written authorization of PIP. Authorized Users may attach addenda or overlays to clearly indicate modifications or exceptions to specific sections of PIP Practices. Authorized Users may provide their clients, suppliers and contractors with copies of the Practice solely for Authorized Users purposes. These purposes include but are not limited to the procurement process (e.g., as attachments to requests for quotation / purchase orders or requests for proposals / contracts) and preparation and issue of design engineering deliverables for use on a specific project by Authorized User s client. PIP s copyright notices must be clearly indicated and unequivocally incorporated in documents where an Authorized User desires to provide any third party with copies of the Practice. PUBLISHING HISTORY February 2010 Issued October 2013 Complete Revision Not printed with State funds

3 Process Industry Practices Machinery PIP REDP003 Documentation Requirements for High Power Centrifugal Pumps for Water Service Table of Contents 1. Introduction Purpose Scope... 2 Data Sheets REDP003-R Documentation Requirements Sheet REDP003-T Inspection and Testing Requirements Sheet Process Industry Practices Page 1 of 2

4 PIP REDP003 COMPLETE REVISION Documentation Requirements for High Power Centrifugal Pumps for Water Service October Introduction 1.1 Purpose This Practice provides data forms for specifying requirements for horizontal, vertical, and vertical submerged motor centrifugal pumps of 150 kw (200 HP) or greater for water service. 1.2 Scope 2. References This Practice contains two data forms for providing documentation, inspection, and testing requirements for horizontal, vertical, and vertical submerged motor centrifugal pumps of 150 kw (200 HP) or greater for water service. This Practice is to be used in conjunction with any of the following Practices: PIP RESP003H - Specification for High Power Horizontal Centrifugal Pumps for Water Service PIP RESP003S - Specification for High Power Vertical Submerged Motor Centrifugal Pumps for Water Service PIP RESP003V - Specification for High Power Vertical Centrifugal Pumps for Water Service Applicable parts of the following industry codes and standards shall be considered an integral part of this Practice. The edition in effect on the date of contract award shall be used, except as otherwise noted. Short titles are used herein where appropriate. 2.1 Industry Codes and Standards American Society of Mechanical Engineers (ASME) ASME Boiler and Pressure Vessel Code (ASME Code) Section V Nondestructive Examination American Society for Testing and Materials (ASTM) ASTM E125 Reference Photographs for Magnetic Particle Indications on Ferrous Castings ASTM E709 Practice for Magnetic Particle Examination Hydraulic Institute Hydraulic Institute Standard Process Industry Practices Page 2 of 2

5 DOCUMENTATION REDP003-R PAGE 1 OF 5 FACILITY NAME/LOCATION: ITEM NAME: PURCHASER/LOCATION: ITEM TAG NO.: JOB NO.: SERVICE: PURCHASER ORDER NO.: UNIT: SUPPLIER/LOCATION: P&ID NO.: SUPPLIER ORDER/SERIAL NOS.: / 1. Submittal of documentation is a condition of progress invoice payment. Refer to contract or purchase order. 2. Purchaser review of documentation shall not relieve supplier of responsibility to provide equipment of proper design, and mechanically suited to meet the operating performance and service conditions specified. Instructions 1. Complete and return this form with quotation. 2. Submit With Quote documentation with quotation. 3. Submit documentation in accordance with this documentation requirements sheet(s) as regards timing, quantity, and form of documentation. 4. Documentation shall be identified in transmittal (cover) letters and in title blocks or title pages with the following information: a. Purchaser s corporate name b. End user name c. Job/project number d. Equipment item number and service name e. Inquiry or purchaser order number f. Supplier order number 5. Each drawing, bill of materials, and data sheet shall have a title block in its lower right-hand corner that shows the date of certification, identification information specified in Instruction 4, the revision number and date, and the title. 6. All drawings and documents shall be black on white with clear image suitable for reproduction. Drawings and documents shall show information for this project only. Purchaser, at its sole discretion, may accept preprinted standard data if applicable information is clearly indicated and non-applicable information is cross-hatched out. 7. As Built documents and data books shall be submitted at time of equipment completion. 8. If hard copy data books are specified, data shall be provided on three-hole paper and bound in hard covers. Unless clarity is adversely affected, drawings shall be reduced to scale on 11-inch by 17-inch paper. If the clarity of reduced drawings is adversely affected, large drawings shall be folded and placed in heavy-duty, three-sided plastic covers and inserted into the binders. 9. Identify supplier representative responsible for documentation: NAME: TITLE: PHONE: DEFINITIONS Approval: Submitted for purchaser review and comment. Certified: Certified correct by purchaser/supplier and incorporates comments by purchaser from approval copy. As Built: Incorporates modifications made during fabrication. REMARKS NO. DATE REVISION BY APPROVED

6 DOCUMENTATION DOCUMENT TYPE LEGEND TIME LEGEND X = ORIGINAL A = WEEKS AFTER CONTRACT AWARD P = PRINT B = WEEKS BEFORE WORK STARTS R = REPRODUCIBLE C = WEEKS AFTER WORK COMPLETE S = SHOTDOWN D = WEEKLY E = ELECTRONIC MEDIA (DISK, TAPE, ETC.) E = SHIPMENT REDP003-R PAGE 2 OF 5 DOCUMENTATION WITH QUOTE QTY TYPE APPROVAL COPIES QTY TYPE TIME CERTIFIED COPIES QTY TYPE TIME AS BUILT COPIES QTY TYPE DATA BOOK COPIES QTY TYPE 1. Proposal Drawings per Section A.2 2. Proposal Technical Data per Section A.3 3. Proposal Curves per Section A.4 4. Proposal Options per Section A.5 5. Contract Data List per Section B.1.a 6. Contract Drawings, Technical Data, and Curves per Section B.2 7. Parts Lists and Recommended Spares per Section B.3 8. Installation Manual per Section B.4 9. Operation, Maintenance, and Technical Data Manuals per Section B Instrument Wiring Diagram 11. For Vertical Centrifugal Pumps, Data Lateral and Torsional Vibration Analysis

7 DOCUMENTATION REDP003-R PAGE 3 OF 5 REQUIREMENTS FOR DOCUMENTATION A. Proposal 1. General a. The original proposal and the specified number of copies shall be sent to the address specified in the inquiry documents. b. At a minimum, the proposal shall include the data specified in Sections A.2 through A.4 of this requirements sheet and a specific statement that the system and all its components are in strict accordance with the following Practice or a list that details and explains each deviation: PIP RESP003H PIP RESP003S PIP RESP003V c. Enough details shall be provided to enable the purchaser to evaluate any proposed alternate designs. 2. Drawings a. At a minimum, the following drawings shall be provided: 1) General arrangement or outline drawing showing direction of rotation, size, and approximate location of major purchaser connections, overall dimensions, maintenance clearance dimensions, overall weights, erection weights, and maximum maintenance weights (shown for each piece) 2) Cross-sectional drawings showing the details with part numbers of proposed equipment 3) Mechanical seal drawing 4) Auxiliary piping drawings b. If typical drawings, schematics, and bills of materials are used, they shall be marked to show the correct weight and dimension data and to reflect the actual equipment and scope proposed. 3. Technical Data The following technical data shall be provided: a. Data sheets with complete supplier s information entered thereon and literature to fully describe details of the equipment b. A specific statement that the supplier s schedule for transmitting the specified data is in accordance with the schedule shown in this requirements sheet or a list that details and explains each deviation c. Schedule, in weeks, for shipment of the equipment after receipt of the order d. List of major wearing components e. List of spare parts recommended for startup and normal maintenance f. For vertical submerged motor centrifugal pumps, weld repair procedure and qualification reports for cast iron casings 4. Curves a. Complete performance curves, including differential head, typical efficiency, water NPSH3, and power expressed as functions of capacity shall be provided. b. Curves shall be extended from zero capacity to 120% minimum of BEP capacity and the rated operating point shall be shown. c. Head curve for maximum and minimum impeller diameters shall be provided. d. Eye area of the first-stage impeller and the impeller identification number shall be shown on the curves. e. Minimum flow shall be shown on the curves. f. For vertical centrifugal pumps, a cold alignment curve shall be provided. 5. Options A list of procedures for any special or optional tests that have been specified by the purchaser or proposed by the supplier shall be provided.

8 DOCUMENTATION REDP003-R PAGE 4 OF 5 B. Contract Data 1. General a. A complete list of supplier s data shall be provided with the first issue of the major drawings. List shall contain titles, drawing numbers, and a schedule for transmission of all the data. b. On receipt of approval copies of documents, purchaser shall review the data. Review shall not constitute permission to deviate from any requirements in the order, unless the purchaser agrees in writing. c. Purchaser comments on the drawings that revise the specifications or scope of supply shall require a purchase order change. Purchaser shall be notified of the need for such changes promptly so that the purchaser can issue revised specifications and/or data sheets. d. After approval copies have been reviewed and revisions have been agreed, certified copies shall be provided in the quantity specified. e. Drawings and manuals shall provide sufficient information for the purchaser to properly install, operate, and maintain the equipment. f. Manufacturer s standard Inspection Test Plan (ITP) 2. Drawings, Technical Data, Curves, and Data Sheets a. Drawings, data, and curves shall be transmitted in accordance with the schedule agreed with purchaser. b. Certified test curves and data shall be submitted within 15 days after testing and shall include head, power recalculated to the proper specific gravity, and efficiency plotted against capacity. For vertical submerged motor centrifugal pumps, viscosity corrections shall be shown if applicable. c. NPSH3 curve shall be provided. Curve shall be drawn from actual test data for an impeller cast from the same pattern. d. Curve sheet shall show maximum and minimum diameters of the impeller design provided, eye area of the first stage impeller, suction specific speed, identification number of the impeller(s), and pump serial number. e. As built data sheets 3. Parts Lists and Recommended Spares a. Complete parts lists for all equipment and accessories shall be provided. b. Lists shall include unique part numbers, materials of construction, and delivery times. c. Each part shall be identified and shown on cross-sectional or assembly-type drawings so that the purchaser can determine the interchangeability of these parts with other equipment. d. Parts that have been modified from standard dimensions and/or finished to satisfy specific performance requirements shall be uniquely identified by part number for interchangeability and future duplication purposes. Alternate systems shall be approved by purchaser. e. Standard purchased items shall be identified by the original manufacturer s name and part number. f. Recommended spares for startup and normal maintenance shall be shown on the parts list. g. The parts lists shall be submitted to the purchaser promptly after receipt of the reviewed drawings and in time to permit delivery of the parts before startup of the pump.

9 DOCUMENTATION REDP003-R PAGE 5 OF 5 4. Installation, Operation, Maintenance, and Technical Data Manuals a. General 1) Manual(s) shall be compiled and shipped in accordance with schedule agreed with purchaser. 2) An index sheet containing section titles, and a complete list of referenced and enclosed drawings by title and drawing number shall be provided. 3) Written instructions and a cross-referenced list of drawings shall be provided to enable the purchaser to correctly install, operate, and maintain all the equipment ordered. 4) Manuals shall be prepared for the specified installation. If preprinted manuals are provided, they shall be supplemented with specific order data to enable the purchaser to correctly install, operate, and maintain all the equipment ordered. 5) Shipping List, Preservation, and Protection Instructions b. Installation Manual 1) Installation manual shall include the following: a) All installation procedures and installation design data b) Special alignment and grouting procedures c) Utility specifications including utility quantities d) Sketches that show the location of the center of gravity and rigging provisions to permit the removal of the top half of the casings, rotors, and any subassemblies that weigh more than 135 kg (300 lb) 2) Special information required for proper installation design that is not on the drawings shall be provided separately from the operating and maintenance instructions. Special installation information shall be transmitted at a time agreed upon with purchaser in the purchase order but not later than the final issue of drawings. c. Operating, Maintenance, and Technical Data Manual A manual containing operating, maintenance, and technical data shall be shipped with the equipment and shall include the following: 1) Instructions for pump operation at specified environmental conditions (e.g., temperature) 2) Required and recommended maintenance procedures

10 INSPECTION AND TESTING REDP003-T PAGE 1 OF 7 FACILITY NAME/LOCATION: ITEM NAME: PURCHASER/LOCATION: ITEM TAG NO.: JOB NO.: SERVICE: PURCHASER ORDER NO.: UNIT: SUPPLIER/LOCATION: P&ID NO.: SUPPLIER ORDER/SERIAL NOS.: / Horizontal Vertical Vertical Submerged Motor Other: 1. Purchaser denotes purchaser or designated representative. 2. Purchaser shall specify the extent of purchaser s participation in the inspection and testing. 3. Purchaser reserves the right to witness all aspects of manufacturing, to review and reject manufacturing equipment, testing equipment, test procedures, and test results; and to reject product not meeting requirements. 4. Purchaser shall be given written notice working days before inspection or test. If a test is rescheduled, the purchaser shall be notified a minimum of working days before the new test date. 5. Purchaser may perform additional testing, inspection, or both. 6. The submission of inspection and testing results is a condition of acceptance and payment. S = Supplier provided inspection or test W = Purchaser witnessed inspection or test D = Document results of inspection or test INSPECTION OR TEST DP = Send documentation to purchaser O = Purchaser observes inspection or test 1. Ultrasonic Inspection per Section B.2 Impeller Casing 2. Magnetic Particle Inspection per Section B.3 Impeller Casing 3. Liquid Penetrant Inspection per Section B.4 Impeller Casing 4. Radiographic Examination Impeller Casing 5. Hydrostatic Test per Section C.2 Hydrotest Pressure: Bowl Assembly: psig Column Assembly: psig Head Assembly (Disch.): psig Head Assembly (Suct.): psig Suction Barrel: psig Mechanical Seal: psig Hydrotest Fluid: Water Kerosene 6. Pump Running Test (Minimum 4 hours) 7. Performance Test per Section C.3 S W D DP O Remarks NO. DATE REVISION BY APPROVED

11 INSPECTION AND TESTING REDP003-T PAGE 2 OF 7 INSPECTION OR TEST S = Supplier provided inspection or test W = Purchaser witnessed inspection or test D = Document results of inspection or test DP = Send documentation to purchaser O = Purchaser observes inspection or test S W D DP O Remarks 8. NPSH Test per Section C.4 Test to be carried out with: Actual Driver Supplier s Driver Test to be carried out at: Rated Speed Derated Speed: rpm 9. Submergence Test per Section C Complete-Unit Test per Section C FFT Spectrum per Section C.3.d Motor Tests per Section C.3.f Dismantling Inspection 14. Dynamic Balance Impeller Rotor Coupling 15. Sound Level Test 16. Pipe Load Test A. General 1. Purchaser witnessed inspections and tests require that a hold be applied to the production schedule and that the inspections and tests be performed with the purchaser in attendance. Purchaser and supplier shall coordinate manufacturing hold points and inspector s visits. 2. Before witnessing mechanical running or performance tests, the purchaser shall be informed that a successful preliminary in-house test has been completed. 3. Equipment required for the specified inspection and tests shall be provided. 4. Purchaser s representative shall have access to review the supplier s quality assurance program. 5. For vertical centrifugal pumps, pumps shall be tested as complete assemblies if possible. If testing of assembled unit is impractical, alternative testing procedures shall be submitted with the proposal. Suction cans, if provided, are not required to be used for performance testing.

12 INSPECTION AND TESTING REDP003-T PAGE 3 OF 7 B. Material Inspection 1. General a. If specified, ultrasonic, magnetic particle, or liquid penetrant inspection shall be performed in accordance with Sections B.2 through B.4 of this requirements sheet. b. If not specified by purchaser, wrought material may be inspected by ultrasonic, magnetic particle, or liquid penetrant in accordance with Sections B.2 through B.4 of this requirements sheet. c. For horizontal and vertical centrifugal pumps, if not specified by purchaser, cast iron, cast steel, and welds may be inspected by magnetic particle or liquid penetrant in accordance with Sections B.3 and B.4. d. For vertical submerged motor centrifugal pumps: 1) If inspection method is not specified by purchaser, cast iron may be inspected by magnetic particle and liquid penetrant in accordance with Sections B.3 through B.4. 2) Steel impellers shall be subjected to a liquid penetrant examination or a wet fluorescent magnetic particle examination if the peripheral velocity of the impeller at operating speed is 45 m/s (150 ft/s) or higher. 3) Visible surfaces of the impeller shall be examined and shall be in accordance with ASME Code Section VIII, Division 1, Appendices 6 and Ultrasonic Inspection a. Ultrasonic inspection shall be in accordance with ASME Code Section V, Articles 5 and 23. b. Acceptance standard for welded fabrications shall be in accordance with ASME Code Section VIII, Division 1, Appendix 12. c. Acceptance standard for castings shall be in accordance with ASME Code Section VIII, Division 1, Appendix Magnetic Particle Inspection a. Both wet and dry methods of magnetic particle inspection shall be in accordance with ASTM E709. b. Acceptance standard for welded fabrications shall be in accordance with ASME Code Section VIII, Division 1, Appendix 6 and Section V, Article 25. c. Acceptability of defects in castings shall be based on a comparison with the photographs in ASTM E125. For each type of defect, the degree of severity shall not be greater than the limit specified in Table T1 of this requirements sheet. TABLE T1 MAXIMUM SEVERITY OF DEFECTS IN CASTINGS Type Defect Maximum Severity Level I Linear discontinuities 1 II Shrinkage 2 III Inclusions 2 IV Chills and chaplets 1 V Porosity 1 VI Welds 1

13 INSPECTION AND TESTING REDP003-T PAGE 4 OF 7 4. Liquid Penetrant Inspection a. Liquid penetrant inspection shall be in accordance with ASME Code Section V, Article 6. b. Acceptance standard for welded fabrications shall be in accordance with ASME Code Section VIII, Division 1, Appendix 8 and Section V, Article 24. c. Acceptance standard for castings shall be in accordance with ASME Code Section VIII, Division 1, Appendix 7. C. Testing 1. General a. If specified, hydrostatic, performance, NPSH3, submergence, and complete-unit tests shall be provided in accordance with the requirements of Sections C.2 through C.6 of this requirements sheet. b. If specified, performance and NPSH3 tests shall be conducted in accordance with the Hydraulic Institute Standard, except that efficiency data shall be for information only, and test tolerances shall be in accordance with Table T2 of this requirements sheet. c. For horizontal and vertical centrifugal pumps, mechanical seals: 1) Shall not be used during the hydrostatic test. 2) Shall be used during all running or performance tests. TABLE T2 PERFORMANCE TOLERANCES Condition Rated Point (%) Shutoff (%) Rated differential head 0 to 150 m (0 to 500 ft) (Note) Rated power +4 (Note 3) Rated NPSH +0 Note: 1. Efficiency is not a rating value. 2. Negative tolerance is permitted only if the test curve still shows a rising characteristic. 3. Under any combination of the above. Cumulative tolerances are not permitted. 2. Hydrostatic Test a. All pressure-casing components including seal glands, bowls, surface plate assembly, seal chambers, and welded auxiliary process fluid piping shall be hydrostatically tested with liquid at a minimum pressure of 1-1/2 times the MAWP for a minimum of 30 minutes. b. Test liquid shall be at a higher temperature than the nil-ductility transition temperature of the material being tested. c. Hydrostatic test liquid shall have a maximum of 50 ppm of chlorides. Comment: Chlorides in the test liquid will be deposited on components during evaporative drying. Chlorides may cause cracking in austenitic materials. d. All residual liquid shall be removed from tested parts at the conclusion of the test. e. Tests shall be maintained for a sufficient period not less than 30 minutes to permit complete examination of parts under pressure. f. Test shall be considered satisfactory when neither leaks nor seepage through the casing or casing joint is observed.

14 INSPECTION AND TESTING REDP003-T PAGE 5 OF 7 3. Performance Test a. Unless otherwise specified, a performance test shall be conducted if any of the following conditions are met: 1) Pumps are to be operated in parallel. 2) Purchaser specifies a performance test on this requirements sheet. 3) For horizontal and vertical centrifugal pumps, an NPSH3 test is required. 4) For vertical centrifugal pumps, a submergence test is required. b. The following requirements shall be met before the performance test: 1) Contract seals and bearings shall be used. 2) All joints and connections shall be checked for tightness, and any leaks shall be corrected. 3) All warning, protective, and control devices used during the test shall be checked for proper operation, and adjustments shall be made as required. 4) For horizontal and vertical centrifugal pumps, acceptable level of seal leakage during testing shall be zero visible leakage, unless otherwise agreed in writing among the purchaser, supplier, and seal manufacturer. 5) For horizontal centrifugal pumps, bearings specified to be normally lubricated from a pure oil mist system shall be prelubricated before performance test using suitable hydrocarbon oil. c. Unless otherwise specified, performance test shall be conducted as follows: 1) Test data, including head, capacity, and power shall be taken at a minimum of five points. These points are typically shutoff (no vibration data required), minimum continuous stable flow, midway between minimum and rated flow, rated flow, and maximum allowable flow (as a minimum, 120% of BEP). 2) All running tests and mechanical checks shall be completed before the purchaser s inspection. 3) Unless otherwise agreed in writing with purchaser, test speed shall be within 3% of the rated speed shown on the purchaser s Data Sheet. Test results shall be converted to anticipated results at the rated speed. 4) For vertical submerged motor centrifugal pumps specified for fire water service, pumps shall be tested to 150% of rated capacity. 5) For vertical centrifugal pumps, measurement of the differential pressure across the stuffing box shall be recorded. d. The following requirements shall be met during the performance test: 1) When operated at rated speed and capacity, pumps shall perform within the tolerances shown in Table T2 of this requirements sheet. 2) Overall bearing housing vibration levels in root mean square (RMS) velocities shall be recorded at each test point. If specified, an FFT spectrum (required for vertical submerged motor centrifugal pumps) shall be recorded at each test point. Vibration values shall not be greater than the values shown in Table T3 of this requirements sheet for the specified pump type.

15 INSPECTION AND TESTING REDP003-T PAGE 6 OF 7 Location of Measurement TABLE T3 VIBRATION LIMITS Horizontal Vertical Centrifugal Pumps Centrifugal Pumps Bearing Housing Pump Thrust Bearing Housing or Driver Mounting Stand Vertical Submerged Motor Centrifugal Pumps Pump Thrust Bearing Housing Pump bearing type All All All Vibration at any flow within the pump s preferred operating region: Overall V u<4.25 mm/s RMS (0.17 inch/s RMS) V u<5.0 mm/s RMS S (0.20 inch/s RM) V u<5.0 mm/s RMS (0.20 inch/s RMS) Discrete Frequencies V f<2.0 mm/s RMS (0.12 inch/s RMS) V f<3.4 mm/s RMS (0.13 inch/s RMS) V f<3.4 mm/s RMS (0.13 inch/s RMS) Increase in allowable 30% 30% 30% vibration at flows beyond the preferred operating region but within the acceptable operating region Notes: 1. Values calculated from the basic limits shall be rounded off to two (2) significant figures. 2. V u = unfiltered velocity 3. V f = filtered velocity, determined by Fast Fourier Transfer (FFT) 3) For horizontal and vertical centrifugal pumps, pumps shall operate with bearing temperature limits in accordance with Table T4 of this requirements sheet. TABLE T4 OIL-LUBRICATED BEARING HOUSINGS FOR HORIZONTAL AND VERTICAL CENTRIFUGAL PUMPS ALLOWABLE OIL AND BEARING TEMPERATURES For pressurized systems operating at an ambient temperature of 50 C (122 F) or less: Note: Pressurized oil systems are rarely applied to vertical pumps. Oil temperature at outlet <71 C (160 F) Bearing metal temp (if bearing temp sensors are provided) <93 C (200 F) Bearing oil temp rise 10 C (50 F) For ring-oiled or splash systems for Horizontal Centrifugal Pumps: Oil sump temperature <82 C (180 F) Sump oil temp rise 21 C (70 F) 4) For vertical submerged motor centrifugal pumps, pumps shall not display signs of unfavorable operation (e.g., noise caused by cavitation).

16 INSPECTION AND TESTING REDP003-T PAGE 7 OF 7 e. The following requirements shall be met after the performance test: 1) For vertical submerged motor centrifugal pumps, after the performance test, the pump shall be set at its rated point and run for a continuous period of 1-hour minimum. Test measurements shall be recorded at 15-minute intervals during this period. 2) If a pump is dismantled for the sole purpose of machining impellers to meet the tolerances for differential head, a retest shall not be required unless the reduction in diameter is greater than 5% of the original diameter. 3) The following shall be recorded on the certified shop-test curve that shows the operating characteristics after the diameter of the impeller has been reduced: a) For horizontal and vertical centrifugal pumps, final diameter of the impeller b) For vertical submerged motor centrifugal pumps, diameter of the impeller at the time of shop test, and final diameter of impeller and wear ring clearances 4) If it is necessary to dismantle a pump for some other correction (e.g., improvement of power, NPSH3, or mechanical operation), the initial test shall not be acceptable, and the final performance test shall be run after the correction is made. f. For vertical submerged motor centrifugal pumps, the following motor tests and data shall be provided: 1) The following motor tests shall be performed to demonstrate that the motors are free from mechanical and electrical defects: a) High-potential test on the stator b) High-potential test on cables and splices c) Insulation resistance test d) Winding resistance measurement e) No-load current measurement (each phase) f) Nominal no-load speed measurement g) Locked rotor current determination 2) Curves showing motor efficiency and power factor at 100%, 75%, and 50% of full load shall be provided. The test code method used in preparing the performance data shall be provided. 3) For oil-filled motors, a polarization index test shall be performed. The polarization index shall not be less than NPSH Test for Horizontal and Vertical Centrifugal Pumps a. An NPSH test shall be performed if the NPSH3 is within 1.5 m (5 ft) of the NPSHA. b. If specified, an NPSH test shall be performed. Purchaser and supplier shall agree upon test details. c. If an NPSH test is specified, a performance test shall also be conducted. d. NPSH3 data shall be taken at each test point specified in Section C.3.c.1 of this requirements sheet, except at shutoff. 5. Optional Submergence Test for Vertical Centrifugal Pumps a. If specified, a submergence test shall be performed. Purchaser and supplier shall agree upon test details. b. Vortex shedding at the minimum submergence depth shall not be permitted. 6. Complete-Unit Test for Vertical Submerged Motor Centrifugal Pumps a. If specified, a complete-unit test shall be performed. Purchaser and supplier shall agree upon test details. b. Components (e.g., pumps, drivers, and auxiliaries) that make up a complete unit shall be tested together.