Goulds Pumps 3996 Installation, Operation And Maintenance Instructions Download | Manualshive

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BEARING OPTIONS - SECTIONAL VIEW

* RECOMMENDED SPARE PARTS

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3996 IOM 9/2010

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Summary of Contents for 3996

Page 1: ...enntech info lenntech com Tel 31 152 610 900 www lenntech com Fax 31 152 616 289 info lenntech com Tel 31 152 610 900 www lenntech com Fax 31 152 616 289 Lenntech Installation Operation and Maintenance Instructions ...

Page 2: ...perators in understanding the construction and the correct methods of installing operating and maintaining these pumps Goulds shall not be liable for physical injury damage or delays caused by a failure to observe the instructions for Installation Operation and Maintenance contained in this manual Warranty is valid only when genuine Goulds parts are used Use of the equipment on a service other tha...

Page 3: ...TABLE OF CONTENTS 9 SAFETY 13 GENERAL INFORMATION 17 INSTALLATION 21 OPERATION 27 PREVENTATIVE MAINTENANCE 33 DISASSEMBLY REASSEMBLY 45 TROUBLESHOOTING 3996 IOM 9 2010 7 1 2 3 4 5 6 7 ...

Page 4: ...e warnings alone however is not sufficient it is anticipated that the end user will also comply with industry and corporate safety standards Identifying and eliminating unsafe installation operating and maintenance practices is the responsibility of all individuals involved in the installation operation and maintenance of industrial equipment Please take the time to review and understand the safe ...

Page 5: ...condition is avoided WARNING The pump may handle hazardous and or toxic fluids Care must be taken to identify the contents of the pump and eliminate the possibility of exposure particularly if hazardous and or toxic Potential hazards include but are not limited to high temperature flammable acidic caustic explosive and other risks WARNING Pumping equipment Instruction Operation and Maintenance man...

Page 6: ...hrottling flow from the suction side may cause cavitation and pump damage ELECTRICAL HAZARD Indicates the possibility of electrical risks if directions are not followed Example Lock out driver power to prevent electric shock accidental start up and physical injury When installed in potentially explosive atmospheres the instructions that follow the Ex symbol must be followed Personal injury and or ...

Page 7: ...r to the driver before performing pump maintenance WARNING NEVER operate pump without safety devices installed WARNING NEVER operate pump with discharge valve closed WARNING NEVER operate pump with suction valve closed WARNING DO NOT change service application without approval of an authorized ITT Goulds Pumps representative WARNING Safety Apparel Insulated work gloves when handling hot bearings o...

Page 8: ...WARNING Operating pump in reverse rotation may result in contact of metal parts heat generation and breach of containment WARNING Lock out driver power to prevent accidental start up and physical injury WARNING The impeller clearance setting procedure must be followed Improperly setting the clearance or not following any of the proper procedures can result in sparks unexpected heat generation and ...

Page 9: ...t damage Steel toed shoes must be worn at all times WARNING The pump may handle hazardous and or toxic fluids Observe proper decontamination procedures Proper personal protective equipment should be worn Precautions must be taken to prevent physical injury Pumpage must be handled and disposed of in conformance with applicable environmental regulations WARNING Operator must be aware of pumpage and ...

Page 10: ...re proceeding Current IOMs are available at www gouldspumps com literature_ioms html or from your local ITT Goulds Pumps Sales representative All pumping unit pump seal coupling motor and pump accessories certified for use in an ATEX classified environment are identified by an ATEX tag secured to the pump or the baseplate on which it is mounted A typical tag would look like this The CE and the Ex ...

Page 11: ... and most reliable operation of your pump ITT Goulds Pumps ISO certification and quality control procedures ensure the parts are manufactured to the highest quality and safety levels Please contact your local Goulds representative for details on genuine Goulds parts ...

Page 12: ...8 3996 IOM 9 2010 ...

Page 13: ...ould result in personal injury or loss of life CAUTION Operating procedure practice etc which if not followed could result in damage or destruction of equipment If equipment is to be installed in a potentially explosive atmosphere and these procedures are not followed personal injury or equipment damage from an explosion may result Particular care must be taken when the electrical power source to ...

Page 14: ...s containing explosive gasses and or dust the instructions under the ATEX symbol must be closely followed ATEX certification is a directive enforced in Europe for non electrical and electrical equipment installed in Europe ATEX requirements are not restricted to Europe They are useful guidelines for equipment installed in any potentially explosive environment When pumping unit is installed in a po...

Page 15: ...presentative before proceeding INTENDED USEE The ATEX conformance is only applicable when the pump unit is operated within its intended use All instructions within this manual must be followed at all times Operating installing or maintaining the pump unit in any way that is not covered in this manual can cause serious personal injury or damage to the equipment This includes any modification to the...

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Page 17: ...es or temperatures higher than nor used with liquids other than stated in the original order acknowledgement without written permission of Goulds Pumps RECEIVING INSPECTION Care should be taken when unloading pumps If shipment is not delivered in good order and in accordance with the Bill of Lading note the damage or shortage on both receipt and freight bill MAKE ANY CLAIMS TO THE TRANSPORTATION C...

Page 18: ...ge treatment may be purchased with initial pump order HANDLING s WARNING Pump and components are heavy Failure to properly lift and support equipment could result in serious physical injury or damage to pumps Use care when moving pumps Lifting equipment must be able to adequately support the entire assembly Hoist bare pump using suitable hooks through the holes in the frame mounted support or suit...

Page 19: ...this manual 3996 IOM 9 2010 15 Description Fig No Example Pump Casing Tag provides information about the pump s hydraulic characteristics Note the format of the pump size Discharge x Suction Nominal maximum Impeller Diameter in inches Example 2x3 8 Figs 4 5 Fig 4 English Fig 5 Metric Bearing Frame Tag provides information on the lubrication system used Fig 6 Fig 6 ATEX Tag If applicable your pump ...

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Page 21: ...c Institute 30200 Detroit Road Cleveland OH 44145 1967 and must be reviewed prior to pump installation s WARNING Never draw piping into place by forcing at the flanged connections of the pump This may impose dangerous strains on the unit and cause misalign ment between pump and driver Pipe strain will adversely affect the operation of the pump resulting in physical injury and damage to the equipme...

Page 22: ...t be provided Suction Head Flooded Suction Conditions 1 An isolation valve should be installed in the suction line at least two 2 pipe diameters from the pump suction to permit closing of the line for pump inspection and maintenance 2 Keep suction pipe free from air pockets 3 Piping should be level or slope gradually downward from the source of supply 4 No portion of the piping should extend below...

Page 23: ...in the field The following is the procedure that has been developed for the use in the field and on our assembly floor to obtain 0 002 shaft to shaft alignment 3996 Shaft Alignment Procedure 1 Inspect all machined fits for signs of contamination or damage All fits must be clean If the pump is new this step is not necessary 2 Loosen all motor motorsupport and casing bolts but do not remove NOTE Mak...

Page 24: ...ue levels Table 3 Fastener Size and Recommended Torque Values Fastener Standard Fastner Nominal Size Recommended Torque1 lb ft SAE 5 16 6 3 8 10 7 16 18 1 2 27 5 8 53 3 4 94 7 8 152 1 228 1 Torque values shown for SAE fasteners are based on dry threads at 75 of proof load for ASTM307 Grades A and B SAE Grade 1 fasteners For lubricated plated or PFTE coated threads use 75 of torque values shown 20 ...

Page 25: ...ns Pure Oil Mist Lubrication Pure oil mist is an optional feature for the Model 3996 Follow oil mist generator manufacturer s instructions The inlet and outlet connections are located on the side of the bearing frame See Preventive Maintenance section for lubrication recommendations and connection locations s WARNING Operation of the unit without proper lubrication will cause bearing failure and p...

Page 26: ...cked The pump efficiency is maintained when the proper impeller clearance is set The optimum hydraulic performance is attained by setting the impeller front clearance at the factory to predetermined limits which are consistent with service conditions The maximum impeller setting should not be set more than 005 inch 0 13 above values in Table 4 or significant performance degredation will result Ser...

Page 27: ...on valve Fig 8 2 Open air vents on the suction and discharge piping casing seal chamber and seal piping if provided until all air is vented and only liquid flows out 3 Close the vents Suction Supply Below Pump A foot valve and outside source of liquid may be used to prime the pump Outside source of liquid can come from a priming pump pressurized discharge line or other supply Fig 9 and 10 1 Close ...

Page 28: ... Variable speed drivers should not be adjusted or checked for speed governor or overspeed trip settings while coupled to the pump at initial start up If settings have not been verified uncouple the unit and refer to driver manufacturer s instructions for assistance 5 Pumpage temperatures in excess of 93 C 200 F will require warm up of pump prior to operation Circulate a small amount of pumpage thr...

Page 29: ...flow rate is exceeded CAUTION Always operate the pump at or near the rated conditions to prevent damage resulting from cavitation or recirculation OPERATING AT REDUCED CAPACITY s WARNING DO NOT operate pump below minimum rated flows or with suction and or discharge valve closed These conditions may create an explosive hazard due to vaporization of pumpage and can quickly lead to pump failure and p...

Page 30: ...INAL ALIGNMENT Alignment procedures must be followed to prevent unintended contact of rotating parts Follow coupling manufacturer s coupling installation and operation procedures 1 Run the unit under actual operating conditions for a sufficient length of time to bring the pump and driver and associated system up to operating temperature 2 Remove coupling guard Refer to coupling guard installation ...

Page 31: ...ge Mechanical Seal Should be no leakage Packing Excessive leakage requires adjust ment or possible packing replacement Re fer to Section 4 Operation for packing gland adjustment 3 MONTH INSPECTIONS Check the foundation and the hold down bolts for tightness If the pump has been left idle check the packing Replace if required Oil should be changed at least every 3 months 2000 hours or more often if ...

Page 32: ...e of frame opposite grease fittings 3 Fill both grease cavities through grease fittings with recommended grease until fresh grease comes out of the relief holes Reinstall grease relief plugs until immediately prior to starting pump NOTE The bearing temperature usually rises after regreasing due to an excess supply of grease Temper atures will return to normal after pump has run and purged the exce...

Page 33: ... the stuffing box heats as this will cause damage to both packing and sleeve Draw up gland nuts slowly and evenly and only when pump is running After pump has been in operation for some time and the packing has been completely run in at least 40 to 60 drops per minute of the liquid should be allowed to trickle from the stuffing box at all times for cooling and lubricating the packing and shaft sle...

Page 34: ...n the packing may need to be replaced and the packing installation procedures under Operation should be followed CAUTION Never attempt to replace packing until the driver is properly locked out and the coupling spacer is removed DYNAMIC SEAL Dynamic seals are not allowed in an ATEX classified environment Dynamic Seal Components Repeller The dynamic repeller effectively prevents leakage of pumpage ...

Page 35: ...ntacts the casing Turn the shaft to ensure contact is made 6 Set indicator to zero and back locking bolt 370C out about one turn 7 Thread jack bolts 370D in until they evenly contact the bearing frame Tighten the jack bolts evenly about one flat at a time backing the bearing housing 134A away from the bearing frame until the indicator shows the proper clearance per Table 3 8 Evenly tighten locking...

Page 36: ...ly monitor vibration of the pump Normally vibration level will be well below accepted standards Of equal importance is that the vibration level not increase If a problem with vibration is encountered refer to Trouble Shooting 32 3996 IOM 9 2010 ...

Page 37: ...dled and disposed of in conformance with applicable environmental regulations NOTE Before disassembling the pump for overhaul ensure all replacement parts are available 1 Lock out motor s WARNING Lock out power supply to driver motor to prevent accidental startup and physical injury 2 Shut off all valves controlling flow to and from pump s WARNING Operator must be aware of pumpage and safety preca...

Page 38: ...d carefully slide seal and gland 250 assembly off shaft On units which have a shaft sleeve 126 it is not necessary to remove rotary portion of seal from the sleeve unless replacement of seal is required 12 Slide deflector 123 off shaft 122 13 Scribe shaft 122 at coupling hub for proper positioning of hub during reassembly and remove hub 14 Remove bearing housing bolts 370C Impeller adjustment bolt...

Page 39: ...Ball bearings 112 and 168 Replace if worn loose or rough and noisy when rotated New bearings should not be unwrapped until ready for use Replacement bearings must be of the proper size and type as specified in the Construction Details Section VI Where possible avoid reusing bearings that have been pulled 6 Grease Seals 332 and 333 Replace if torn or otherwise damaged For seal sizes see Vendor Iden...

Page 40: ...Make sure groove in end of sleeve engages drive pin 496D on shaft 9 If unit has mechanical seal 383 The following instructions refer to pumps equipped with mechanical seals either with or without sleeves On units with sleeves the rotary portion of the seal may be mounted on the sleeve and the seal sleeve assembly mounted on the shaft as a unit Before mounting any seals wipe the seal faces carefull...

Page 41: ...s FREELY If not adjust the impeller adjusting bolts 370C 370D Install and tighten the frame to casing bolts 370 evenly while turning the pump by hand Do not jam the impeller into the casing 15 Reset impeller clearances a Loosen bolts 370 C D b Tighten bolts 370C while turning shaft until impeller starts to rub against casing c Loosen bolts 370C until a 0 015 inch 0 375 mm feeler guage can be place...

Page 42: ... Box Less Sleeve 1 3 8 35 1 3 4 44 In Stuffing Box With Sleeve 1 1 8 29 1 1 1 38 Sleeve Outside Diameter 1 3 8 35 1 3 4 44 Between Bearings 1 1 2 38 2 1 8 54 At Coupling 7 8 22 1 1 8 29 Bearings Radial 207 SF 309 SF Coupling End Double Row 5306 KF 5309F Bearing Span 4 1 8 105 6 3 4 171 Shaft Overhang 6 1 8 156 8 3 8 213 Stuffing Box Bore 2 51 2 1 2 64 Depth 2 1 8 54 2 5 8 67 Packing Size 5 16 x 5 ...

Page 43: ...8 6 9 8 15 10 15 7 35 5 Load Factor M 1750 RPM 0 8 1 6 1 8 1 5 2 0 1 9 2 2 2 5 4 1 2 6 4 6 11 5 16 5 1150 RPM 0 3 0 7 0 8 0 7 0 9 0 8 1 1 1 1 7 1 2 1 9 5 6 8 Minimum Casing Thickness 3 8 9 5 1 2 12 7 9 16 14 3 5 8 15 9 Casing Corrosion Allowance 1 8 3 1 8 3 Working Pressure See PT Charts in Figs 17 and 18 on Pg 43 Test Pressure 150 of Working Pressure at 100 F 38 C Maximum Liquid Temp without Cool...

Page 44: ...NUT 168 1 BALL BRG 1B 184 1 SB COVER SA 193 2 GREASE FTG 228 1 FRAME 240 1 MOTOR SUPPORT 250 1 GLD MECH SEAL 332 1 OIL SEAL 333 1 OIL SEAL 351 1 GASKET CASE 353 4 GLAND STUD 355 4 HEX NUT 360Q 1 GASKET MS 361A 1 RTNG RING 370 4 24 H CAP SCREW 370C 3 H CAP SCREW 370D 3 H TAP BOLT 370H 2 STUD 372J 4 H CAP SCREW 382 1 BRG LK WSHR 383 1 MECH SEAL 412A 1 O RING IMPLR 415 3 HEX NUT 370D 418 2 JACKING BO...

Page 45: ...DYNAMIC SEAL SELF DRAINING COVERS OPTIONS SECTIONALVIEWS 3996 IOM 9 2010 41 RECOMMENDED SPARE PARTS 6 ...

Page 46: ...BEARING OPTIONS SECTIONALVIEW RECOMMENDED SPARE PARTS 42 3996 IOM 9 2010 ...

Page 47: ... Pressure Temperature Chart A B C D E I 316SS Hast B C Monel Nickel Titanium Ductile Iron GA 20 NOTE Ratings of 150 lb flanges in Material Code A are per ANSI B 16 5 1973 For equipment designed to ANSI B 16 5 1968 higher ratings may apply 6 Fig 17 Fig 18 ...

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Page 49: ...nd receives full voltage or turbine receives full steam pressure 3 System discharge head too high Check system head particularly friction losses 4 Suction lift too high Check NPSH available suction piping too narrow or long may cause excessive friction losses Check with vacuum or compound gauge 5 Impeller or piping obstructed Check for obstructions 6 Wrong direction of rotation Check rotation 7 Ai...

Page 50: ...r steam pressure received by turbine 22 Head lower than rating pumps too much liquid Consult factory Install throttle valve cut impeller 23 Liquid heavier than anticipated Check specific gravity and viscosity 24 Stuffing box not properly packed insufficient packing not properly inserted or run in packing too tight Check packing and repack stuffing box 25 Incorrect packing or mechanical seal Consul...

Page 51: ...3996 IOM 9 2010 47 ...

Page 52: ...E Emergency parts service is available 24 hours day 365 days year Call 1 800 446 8537 2008 Goulds Pumps Incorporated a subsidiary of ITT Corporation Form I3996 9 10 Lenntech info lenntech com Tel 31 152 610 900 www lenntech com Fax 31 152 616 289 info lenntech com Tel 31 152 610 900 www lenntech com Fax 31 152 616 289 Lenntech ...

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