Centrifugal Pum 2500 Supreme Manuf Man

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  • 1.2500 Supreme Pumps Installation, Operation and Maintenance Instructions with Parts List Bulletin No. M500-1Sales / Technical Information USA Tollfree: 1-800-800-4110Fax: 1 (281) 517-0340EMAIL: mission.cp@natoil.comInternet: http://www.natoil.comorwww.haloil.comP.O. Box 4638Houston, Texas 77210-4638ISSUE: June 27, 2003

2. Installation, Operation andMaintenance InstructionsForeword This manual contains instructions for the installation, operation, and maintenance of the NATIONAL OILWELL 2500 SUPREME. As pump service conditions and specifications vary considerably in pump installation, this manual cannot possibly cover every situation, but it is intended that the information included will serve as a guide. Should questions arise, or start-up problems occur, it is suggested that you contact the NATIONAL OILWELL Pump Distributor or Salesman in your area.The 2500 SUPREME pump generation is an improved version of older 2 inch shaft pumps. The 2500 SUPREME pump is designed to give longer service life through a wear pad replacement casing, superior bearings, stainless shaft sleeve, labyrinth bearing cap seals, semi open impellers and stainless casing nuts. There are many principles of proper pump installation and applications as well as special considerations for the 2500 SUPREME design that, if followed, will further enhance its performance.This document will deal with both general and specific recommendations for improved 2500 SUPREME performance in both oilfield and industrial applications.GENERAL INSTRUCTIONS1. Operate the pump only in the performance range for which it was designed.2. The pump driver must drive the pump CLOCKWISE when viewed from the coupling end. Reversing the rotationwill damage the pump.3. Do not operate the pump with the suction or discharge valves closed.4. Adjust the packing so that a small amount of leakage remains for lubrication and cooling (not applicable forpumps equipped with mechanical seal).5. When operating in drilling mud, prevent packing drippage from clogging the drip area and hardening around theslinger and front seal.6. See Section E for mechanical seal installation.! CAUTION ! CAUTION ! CAUTION ! EXERCISE SAFETY IN ALL PERFORMANCES: DO NOT IGNORE ANY WARNINGS, USE ONLY APPROVED METHODS, MATERIALS AND TOOLS. DO NOT PERMIT ANY FUNCTION OF QUESTIONABLE SAFETY; ACCIDENTS ARE CAUSED BY UNSAFE ACTS AND UNSAFE CONDITIONS. SAFETY IS YOUR BUSINESS AND YOU ARE INVOLVED.! WARNING ! WARNING ! WARNING ! BEFORE PERFORMING ANY SERVICE FUNCTION, BE CERTAIN THAT THE UNIT IS SEPARATED FROM ITS POWER SOURCE OR THAT THE POWER SOURCE IS LOCKED-OUT TO PREVENT ANY FORM OF ENERGY FROM ENTERING THE EQUIPMENT. THIS WOULD INCLUDE ELECTRICAL OR MECHANICAL ENERGY INTO OR FROM THE PRIME MOVER(S), PNEUMATIC ENERGY FROM THE COMPRESSOR/AIR SYSTEM, ETC. 2 www.natoil.com 3. Installation, Operation and Maintenance Instructions! WARNING ! WARNING ! WARNING ! FAILURE TO OBSERVE THE WARNINGS AND NOTES OF CAUTION IN THIS PUBLICATION CAN RESULT IN PROPERTY DAMAGE, SERIOUS BODILY INJURY, OR DEATH.! ATTENTION - NOTICE - IMPORTANT ! THESE TERMS ARE USED TO DRAW ATTENTION TO ACTION THAT WILL CAUSE DAMAGE TO THE PUMP, COMPONENTS OR ATTACHMENTS. ! WARNING ! WARNING ! WARNING ! BEFORE SERVICING PUMPS:1. SHUT DOWN OR DISENGAGE THE PUMP POWER SOURCE.2. SHUT DOWN ALL PUMP ACCESSORY EQUIPMENT.3. RELIEVE OR "BLEED OFF" ALL PRESSURE FROM THE LINES PRIOR TO REMOVING PIPING. FAILURE TO SHUT DOWN POWER AND RELIEVE PRESSURE FROM THE PUMP BEFORE SERVICINGCAN RESULT IN SERIOUS PERSONAL INJURY AND PROPERTY DAMAGE. 3 www.natoil.com 4. Installation, Operation andMaintenance Instructions Table of ContentsINSTALLATION PAGE I. GENERAL A. Interchangeability..............................................................................................................7 B. Location ............................................................................................................................7 C. Foundation........................................................................................................................7 D. Coupling Alignment...........................................................................................................8 E. Piping 1. General ........................................................................................................................9 2. Suction .........................................................................................................................9 3. Discharge.....................................................................................................................9 PREPARATION FOR OPERATIONI. GENERAL A. Initial Lubrication (Oil lubricated pumps) ........................................................................ 10 B. Mechanical Seals............................................................................................................10 C. Check Pump Rotation.....................................................................................................10 D. Priming the Pump ...........................................................................................................10 E. Packed Pumps................................................................................................................11 F. Mechanical Seal Pumps..................................................................................................11 G. Start-Up Checklist...........................................................................................................11 OPERATIONI. GENERAL A. Maximum Operating Conditions......................................................................................12 B. Pump Records ................................................................................................................12 C. Lubrication1. Bearings.....................................................................................................................13 a. Grease ...................................................................................................................13 b. Oil ..........................................................................................................................132. Inboard Lip Seals .......................................................................................................133. Packing ......................................................................................................................14 a. Grease ...................................................................................................................14 b. Water .....................................................................................................................14 4www.natoil.com 5. Installation, Operation andMaintenance InstructionsTable of ContentsMAINTENANCE PAGEI. GENERAL .............................................................................................................................15II. DISASSEMBLYA. General ...........................................................................................................................15III. INSPECTIONA. Impeller ...........................................................................................................................16B. Shaft ...............................................................................................................................16C. Shaft Sleeve ...................................................................................................................16D. Mechanical Seal .............................................................................................................16E. Bearings..........................................................................................................................16F. Seals ...............................................................................................................................16G. General...........................................................................................................................16IV. ASSEMBLY A. General ...........................................................................................................................17 B. Shaft and Bearing Sub-Assembly ...................................................................................17 C. Power Frame Sub-Assembly ..........................................................................................18 D. Assembly of Fluid End to Power Frame..........................................................................19 E. Packing the Pump...........................................................................................................20 F. Mechanical Seal1. H22451-1 ............................................................................................................. 21-222. H25001-1 ...................................................................................................................23V. EXCESSIVE PACKING LEAKAGE AND RAPID PACKING WEARA. General ...........................................................................................................................23B. Packing Appearance.......................................................................................................23VI. INSTALLING WATER FLUSH SYSTEM TO BE ACCEPTABLE BY OIL COMPANIES A. General ...........................................................................................................................24 B. Controlling Water Pressure to the Packing .....................................................................24 C. Controlling When to Use Water on Packing....................................................................24VII. BEARING FAILURES AND HOW TO IMPROVE BEARING LIFE A. General ...........................................................................................................................24 B. Misalignment Between Pump and D