Flowserve LPNV Worthington User Manual

USER INSTRUCTIONS Worthington® LPNV centrifugal pumpsInstallationOperationMaintenanceAPI 610 (BB1), Between Bearings, Axially Spit, Single Stag

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 10 of 48 Figure 2.1 Lifting of complete pump only (side view)

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 11 of 48 Figure 2.3 Lifting of complete unit Figure 2.4 Lifting of co

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 12 of 48 2.4 Storage Store the pump in a clean, dry location away from vibration. Leave pip

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 13 of 48 Six months prior to the scheduled installation date, a FLOWSERVE representative is to

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 14 of 48 3 PUMP DESCRIPTION 3.1 Configurations The LPNV pumps are single stage, double sucti

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 15 of 48 3.3.5 Stuffing Boxes The stuffing boxes are cast integral with the casing: of sturdy,

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 16 of 48 3.4.3 Changing the pump speed The pump must be operated at the rated speed defined in

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 17 of 48 4 INSTALLATION Equipment operated in hazardous locations must comply with the releva

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 18 of 48 4.3 Installation and alignment Normally the pump and motor stand are shipped mounted

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 19 of 48 4.3.4 Shims The shims under pump soleplate at each foundation bolt should be clean a

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 2 of 48 INDEX ... PAGE 1.1 G

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 20 of 48 4.3.7 Hot alignment check As both pump and driver may rise when they reach operatin

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 21 of 48 4.4.2 Suction Piping a) The inlet pipe should be one or two sizes larger than the pu

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 22 of 48 4.4.5.2 Pumps fitted with mechanical seals Single seals requiring re-circulation will

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 23 of 48 5 COMMISSIONING, START-UP, OPERATION AND SHUTDOWN The following procedures are prese

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 24 of 48 5.1.1 Lubrication of the thrust bearing In LPNV pumps the thrust bearing is positione

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 25 of 48 5.2 Pump Lubricants 5.2.1 Recommended oil lubricants Centrifugal Pump Lubrication O

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 26 of 48 If a synthetic lubricant (fire resistant fluid) is to be used instead of the normal

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 27 of 48 5.6 Starting the pump a) Close discharge valve if valve is not already closed, and

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 28 of 48 alignment check must be made (Refer to Section 4.3). 5.7.1 Venting the pump Vent t

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 29 of 48 5.7.5 Normal vibration levels, alarm and trip For guidance, pumps generally fall unde

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 3 of 48 1 INTRODUCTION AND SAFETY 1.1 General These Instructions must always be kept close

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 30 of 48 6 MAINTENANCE 6.1 General It is the plant operator's responsibility to ensure

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 31 of 48 g) Check any auxiliary supplies as heating/cooling (if fitted) are functioning corre

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 32 of 48 If undersize or oversize rings are desired, the amount of undersize or oversize requi

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 33 of 48 6.6 Fastener torques Main Flange Studs/Nuts (Top Casing to Bottom Casing) Stud Size

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 34 of 48 Remove the pipe plug(s) from the top of the bearing housing(s) and check to see that

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 35 of 48 6.7.2 Thrust bearing disassembly Disassemble the thrust bearing as follows: a) Unbol

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 36 of 48 6.8.5 Shaft When the pump is dismantled, examine the shaft carefully. Its condition

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 37 of 48 6.9 Reassembly To reassemble the pump consult the sectional drawings, see section 8,

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 38 of 48 6.9.2 Rotor Assembly To reassemble the pump, reverse the dismantling procedure previ

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 39 of 48 7 FAULTS; CAUSES AND REMEDIES FAULT SYMPTOM Pump overheats and seizes  Bearings h

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 4 of 48 1.6 Safety 1.6.1 Summary of safety markings These User Instructions contain specific

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 40 of 48 FAULT SYMPTOM Pump overheats and seizes  Bearings have short life  Pump vibrates

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 41 of 48 8 GENERAL ARRANGEMENT, SECTIONAL DRAWINGS AND PART LIST The specific sectional drawi

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 42 of 48 8.2 Sectional Drawing and Part List Figure 8.3 – LPNV Sectional Drawing 8.3

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 43 of 48 8.3 Thrust bearing details Figure 8.4 – Thrust Bearing with ball bearings and

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 44 of 48 Figure 8.5 – Thrust Bearing with ball bearings and fan cooling 8.5.1 Parts

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 45 of 48 Figure 8.6 – Thrust Bearing with ball bearings and liquid cooling 8.6.1 P

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 46 of 48 9 CERTIFICATION Certificates determined from the Contract requirements are provided w

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 47 of 48 NOTES:

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 48 of 48 Your Flowserve factory contact: Service & Warranty Flowserve – Italy Worthingto

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 5 of 48 HAZARDOUS LIQUIDS When the pump is handling hazardous liquids care must be taken to a

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 6 of 48 1.6.4.2 Marking An example of ATEX equipment marking is shown below. The actual classi

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 7 of 48 1.6.4.5 Preventing sparks To prevent a potential hazard from mechanical contact, the

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 8 of 48 1.9 Noise level When pump noise level exceeds 85 dBA attention must be given to prevai

LPNV USER INSTRUCTIONS ENGLISH 87900031 – 06/14 Page 9 of 48 2 TRANSPORT AND STORAGE 2.1 Consignment receipt and unpacking Immediately after rece