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ITT Goulds Pumps 3405 Installation, Operation And Maintenance Instructions

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Installation, Operation and
Maintenance Instructions
3405-3406-3416

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  • Page 1 Installation, Operation and Maintenance Instructions 3405-3406-3416...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents 1 Safety.................................. 4 1.1 Important Safety Notice..........................4 1.2 Safety warnings............................4 1.3 Safety ................................ 5 1.4 General precautions ..........................6 1.5 ATEX Considerations and Intended use ....................8 1.6 Parts ................................9 2 Installation................................ 10 2.1 Location..............................
  • Page 4 Table of Contents Not enough pressure..........................34 6.4 Pump works awhile and then quits......................35 6.5 Pump takes too much power........................35 6.6 Pump leaks excessively at stuffing box....................35 6.7 Pump is noisy ............................35 7 Care and maintenance ............................ 37 7.1 Lubrication - bearings..........................
  • Page 5 Table of Contents Foreword The design, material and workmanship incorporated in the construction of Goulds Model 3405, 3406 and 3416 Double Suction Centrifugal Pumps makes them capable of giving long, trouble-free service. The life and satisfactory service of any mechanical unit, however, is enhanced and extended by correct applica- tion, proper installation, periodic inspection and maintenance.

  • Page 6: Safety

    ITT Goulds pumps will provide safe, trouble-free service when properly installed, maintained, and operat- Safe installation, operation, and maintenance of ITT Goulds Pumps equipment are an essential end user responsibility. This Pump Safety Manual identifies specific safety risks that must be considered at all times during product life.

  • Page 7: Safety

    Trapped liquid can rapidly expand and result in a violent explosion and injury. ITT Goulds Pumps will not accept responsibility for physical injury, damage, or delays caused by a failure to observe the instructions for installation, operation, and maintenance contained in this Pump Safety Manual or the current IOM available at www.gouldspumps.com/literature.

  • Page 8: General Precautions

    Personal injuries will result if procedures outlined in this manual are not followed. ITT Goulds Pumps will not accept responsibility for physical injury, damage or delays caused by a failure to observe the instructions in this manual and the IOM provided with your equip- ment.
  • Page 9 1.4 General precautions WARNING Alignment: Shaft alignment procedures must be followed to prevent catastrophic failure of drive components or unintended contact of rotating parts. Follow coupling manufacturer's coupling installation and operation procedures. WARNING Before beginning any alignment procedure, make sure driver power is locked out. Fail- ure to lock out driver power will result in serious physical injury.

  • Page 10: Atex Considerations And Intended Use

    1.5 ATEX Considerations and Intended use CAUTION Never operate the pump without liquid supplied to mechanical seal. Running a mechani- cal seal dry, even for a few seconds, can cause seal damage and must be avoided. Physical injury can occur if mechanical seal fails. WARNING Never attempt to replace packing until the driver is properly locked out and the coupling spacer is removed.

  • Page 11: Parts

    1.6 Parts includes any modification to the equipment or use of parts not provided by ITT Goulds Pumps. If there is any question regarding the intended use of the equipment, please contact an ITT Goulds representative before proceeding. Current IOMs are available at www.gouldspumps.com/en-US/Tools-and-Resources/Literature/IOMs/ or from your local ITT Goulds Pumps Sales representative.

  • Page 12: Installation

    2 Installation 2 Installation 2.1 Location Pumping unit should be placed as close as practical to the source of supply. Always allow sufficient head room to remove the upper half casing of the pump and the rotating element. Floor space allotted to the pumping unit should be sufficient for inspection and maintenance.

  • Page 13: Initial Alignment

    2.3 Initial alignment NOTICE: Final tightening of foundation bolts is done after grout has set 48 hours. Figure 2: Mounting Unit on Foundation: Build wood dam around foundation as shown in Figure 1: on page 10. Wet top surface of con- crete foundation thoroughly.
  • Page 14 2.3 Initial alignment The following are suggested steps to establish the initial alignment of the pumping unit. NOTICE: This is an initial alignment. The final alignment is done after the unit has been run under actual operating conditions. The final alignment procedure is outlined in Section Alignment - final and must be followed.

  • Page 15: Piping - General

    2.4 Piping - general Check parallel misalignment - shaft axes parallel but not concentric-by laying straight edge across both coupling rims at top, bottom and both sides. See Figure 4: on page Figure 4: The unit will be in horizontal parallel alignment when the straight edge rests evenly on both halves of the coupling at each side.

  • Page 16: Install Suction Piping

    2.5 Install suction piping Piping must not be connected to the pump until the grout has thoroughly hardened and the foun- dation bolts as well as driver and pump hold-down bolts have been tightened. See Section 2.7 Connection of piping on page When handling liquids at elevated temperatures, arrangements must be made for expansion loops or expansion joints so that the linear expansion of the pipe will not cause the pumping unit to be drawn out of alignment.
  • Page 17 2.5 Install suction piping Figure 5: Installations With Pump Above Source of Supply - Suction Lift: Keep suction pipe free from air pockets. See Figure 5: on page • Piping should slope upwards from source of supply. • No portion of piping should extend above the pump suction nozzle.
  • Page 18 2.5 Install suction piping A foot valve should only be used if necessary for priming, or, if the pump is to be used on inter- mittent service and is required to hold its prime. Suction strainers when used should have a net free area of at least three times the suction pipe area.
  • Page 19 2.5 Install suction piping Figure 6: 3405-3406-3416 Installation, Operation and Maintenance Instructions...

  • Page 20: Piping - Discharge

    2.6 Piping - discharge Figure 7: 2.6 Piping - discharge A gate valve and a check valve should be installed in the discharge line. The check valve should be located between the gate valve and pump to permit inspection of the check valve. The gate valve is required for priming, regulation of flow capacity and for inspection and maintenance of the pump.

  • Page 21: Connection Of Bearing Cooling Water Piping

    2.10 Connection of bearing cooling water piping Model 3406 - between 180º and 250ºF. Model 3416 - between 250º and 350ºF when bearing housings are not cooled and between 350º and 400ºF, in addition to bearing housing cooling. Volatile or toxic, in order to smother the gland leakage, which then can be piped away. The quenching liquid must be from an outside source and should be piped with a flexible pipe, into the opening in the upper gland half and allowed to drain into chamber or pocket in lower half casing.

  • Page 22: Preparation For Operation

    3 Preparation for operation 3 Preparation for operation 3.1 Pump bearings Model 3405 pump bearings are grease lubricated and sufficient lubricant is inserted at the factory for 2000 hours of operation. Model 3406 pump bearings are ring oil lubricated, and are not lubricated before leaving the facto- Model 3416 pump bearings are flood oil lubricated and are not lubricated before leaving the fac- tory.

  • Page 23: Driver Bearings And Coupling

    3.2 Driver bearings and coupling Figure 9: On the Model 3416 install the constant level oilers in the bearing end covers at each end of the pump, as shown in Figure 10: on page 21. Do not install the oiler in the opening for the optional cooling coils, which are directly below the oiler.
  • Page 24 3.3 Stuffing boxes recommended for water, ammonia, mild chemicals and all general services, and is good for the maxi- mum temperatures for which the pumps are rated. It is suggested that the packing rings be allowed to soak in #10 SAE oil for 15 minutes to one hour prior to installation.

  • Page 25: Connection Of Water Seal Piping

    3.4 Connection of water seal piping 3.4 Connection of water seal piping Water seal piping is required only when pump is operating under suction lift or when single mechanical seal is used. It is not necessary when pump is operating under suction head or when double mechanical seal is furnished, in which cases the four openings in the stuffing box and casing must be plugged.
  • Page 26 3.5 Connection of piping to quenching gland First Half of Stuffing Box Gland Installed. Lay Gland Bolts on bottom half of Gland with bolt heads in bearing housing slots. Nuts and spe- cial cup washers should be all the way back on the bolts, toward the bolt heads as shown. Install top half of stuffing box gland over gland bolts and bottom half of gland.
  • Page 27 3.5 Connection of piping to quenching gland Slide cup washers over shoulders of gland flanges and tighten nuts evenly to provide proper pressure against stuffing box packing. Gland bolts do not screw into tapped holes in casing. Tap- ped holes in casing are for mechanical seal gland only when pumps are furnished with seals. Model 3405 - Between 180°F and 250°F when bearing housings are not cooled and between 250°F and 350°...

  • Page 28: Connection Of Bearing Cooling Water Piping

    3.6 Connection of bearing cooling water piping Volatile or toxic, in order to smother the gland leakage, which then can be piped away. The quenching liquid must be from an outside source and should be piped with a flexible pipe, into the opening in the upper gland half and allowed to drain into chamber or pocket in lower half casing.

  • Page 29: Starting Pump

    4 Starting pump 4 Starting pump 4.1 Priming The pump must always be fully primed and the suction pipe full of liquid before pump is started. If pump is run dry, the rotating parts within the pump may seize to the stationary parts as they depend on the liquid being pumped for lubrication.
  • Page 30 4.1 Priming Figure 14: By Separate Hand or Manually Controlled Priming Pump (See Figure 15: on page 28). Figure 15: Close discharge gate valve (keep air vent valves closed) and open valve in line to priming pump. Exhaust air from pump and suction piping until water flows from priming pump. Close valve in priming line, start pump and open discharge gate valve.
  • Page 31 4.1 Priming Figure 16: This method can be used only when there is liquid under some pressure in the discharge line. The original prime must be effected from some outside source. After subsequent idle periods, open air vent valves and open valve in bypass line around discharge check and gate valves until liquid flows from air vent openings.

  • Page 32: Regulation Of Cooling Water Flow

    4.2 Regulation of cooling water flow Figure 17: Priming by Automatic Primer Pump Where there is a fluctuating suction lift that occasionally might drop below the normal limits of the pump or for installations where there is any quantity of air entrained with the liquid being pumped, the system shown in Figure 18: on page 30 is very well adapted.

  • Page 33: Adjustment Of Stuffing Box Gland

    Adjustment of stuffing box gland Adjustment of stuffing box gland With pump running at rated speed, stuffing box glands can be adjusted. Draw gland nuts up evenly and only one-sixth of a turn at a time, allowing sufficient time between adjustments for the packing to adjust itself and the effect on the leakage to be observed.

  • Page 34: Operation

    5 Operation 5 Operation 5.1 Stuffing box Stuffing Boxes With Packing Rings - Less Quenching Gland and Grease Lubricator: Periodically inspect stuffing box to see that there is sufficient leakage to lubricate the packing and maintain a cool box. Never draw up packing so that the stuffing box heats, as this will cause damage to both packing and sleeve.

  • Page 35: Operating At Reduced Head

    5.3 Operating at reduced head 5.3 Operating at reduced head On motor driven pumps, when discharge head or pressure is allowed to drop considerably below the rat- ed point for any length of time, the motor should be watched for heating because the pump capacity in- creases rapidly with reduced head, as does horsepower consumption.

  • Page 36: Trouble Check List

    6 Trouble check list 6 Trouble check list 6.1 No water delivered Priming - casing and suction pipe not completely filled with liquid. Speed too low. Discharge head too high. Check total head (particularly friction loss). Suction lift too high (suction pipe may be too small or long, causing excessive friction loss), Check with gauge.

  • Page 37: Pump Works Awhile And Then Quits

    6.4 Pump works awhile and then quits Impeller diameter may be too small. Mechanical defects: Wearing rings worn. Impeller damaged. Casing gasket defective. Wrong direction of rotation. Be sure pressure gauge is in correct place on dis charge nozzle of pump and not on top of cas- ing.
  • Page 38 6.7 Pump is noisy • Shaft bent. • Rotating parts bind, are loose or broken. Bearings worn out. • Pump and driving unit misaligned. 3405-3406-3416 Installation, Operation and Maintenance Instructions...

  • Page 39: Care And Maintenance

    7 Care and maintenance 7 Care and maintenance 7.1 Lubrication - bearings Grease Lubricated Bearings As specified in Section 3.1 Pump bearings on page 20, Model 3405 pumps with grease lubricat- ed bearings are lubricated at the factory for 2000 hours or three months service. Do not add grease at too frequent intervals.
  • Page 40 7.2 Repacking stuffing boxes An alternate method of removing the packing and lantern ring is as follows: Remove the upper half casing. See 7.4 Dismantling of pump on page 45 1, 2, 4, 5. Remove the packing and lantern ring from the stuffing box.

  • Page 41: Sectional View

    7.3 Sectional view 7.3 Sectional view 3405-3406-3416 Installation, Operation and Maintenance Instructions...
  • Page 42 7.3 Sectional view 3405-3406-3416 Installation, Operation and Maintenance Instructions...
  • Page 43 7.3 Sectional view Construction details Table 3: Group S Weight - bronze fitted bare pump Casing thickness - volute 5/8" 5/8" 11/16" ¾" ¾" 11/16" Casing thickness - side Pump ½" ½" 5/8" 5/8" 9/16" walls Max diameter spherical ¼" ½"...
  • Page 44 7.3 Sectional view Table 4: Group M Weight - bronze fitted 650 640 660 680 750 bare pump Casing thick- 11/1 ¾" 5/8" ¼" ¾" 5/8" ¾" 13/16" 7/8" 7/8" 7/8" ness - volute 6" Casing thick- 11/1 Pump ness - side 3/8"...
  • Page 45 7.3 Sectional view Max liquid temp with 250°F quenching gland Max liquid temp with 250°F bearing cooling Grease lube) Max liquid temp with quench gland 350°F and bearing cooling (Grease lube) Any part of which may be suction pressure. Water cooled bearings available for model 3405 only. Table 5: Group L Weight - bronze fitted 1285...
  • Page 46 7.3 Sectional view Outside diameter of 2-1/2" shaft sleeve Ball bearing - both 310-S ends Max total working 250 PSI pressure General Max test pressure 375 PSI Bearing centers 28" Max shaft HP per 27.1 100 RPM Max liquid temp with- out cooling or 180°F quenching...

  • Page 47: Dismantling Of Pump

    7.4 Dismantling of pump Part No. Groups Group M Group L 332A H 60222 K 60454 K 60771 332B K3 64284 K3 63290 K 60810 H 60284 K 60478 K 60810 7.4 Dismantling of pump The basic instructions are for a Model 3405 pump. Where dismantling of the Model 3406 or 3416 pumps differ, the necessary supplementary instructions are included.

  • Page 48: Reassembly Of Pump

    7.5 Reassembly of pump Figure 19: Never use hammer blows to drive shaft through bearings. Protect bearings from dirt or other con- tamination. 13. Slide ball bearing collar (237 off of shaft) (122). 14. Slide bearing housings from shaft. Remove deflectors (123) from both ends of shaft. On the Model 3406, remove cap screws from bearing housing covers (160) on both bearing housings and lift out oil rings (114).
  • Page 49 7.5 Reassembly of pump Figure 20: Mark the location of the keyway on the outside of both the impeller hub and the locking sleeve (104) at points "A" and "B'' in Figure 21: Left hand pump on page 48 Figure 22: Right hand pump on page 49.
  • Page 50 7.5 Reassembly of pump Figure 21: Left hand pump 3405-3406-3416 Installation, Operation and Maintenance Instructions...
  • Page 51 7.5 Reassembly of pump Figure 22: Right hand pump 3405-3406-3416 Installation, Operation and Maintenance Instructions...
  • Page 52 7.5 Reassembly of pump Group Left hand pump Figure 21: Left Right hand pump Figure hand pump on page 48 22: Right hand pump on page 49 7-13/16" 9-13/16" 9-1/32" 12-17/32" 10-3/4" 16" If it is necessary to replace the impeller wearing rings on pumps so equipped, proceed as follows: •...
  • Page 53 7.5 Reassembly of pump This is extremely important, as the life of a ball bearing can be drastically reduced if contaminated with even a small amount of dirt. All bearing assembly operations should be done in as dust-free an atmosphere as possible. All tools, as well as the hands, should be kept clean. If new ball bearings are being used, they should not be unwrapped until ready for installation and should not be cleaned or washed unless the protective wrapper has been broken and dirt allowed to enter the bearing.
  • Page 54 7.5 Reassembly of pump 20. Oil shaft extension and slide coupling end bearing end cover (119) with gasket (360) in place, being careful not to injure grease seal (332). Turn end cover so that the small oil cup is in line horizontally with center of shaft when the double lock of the bearing housing are in the lowermost position (see Figure 21: Left hand pump on page 48 Figure 22: Right hand pump on page...
  • Page 55 7.5 Reassembly of pump parting flange, especially around the casing wearing ring locks, or internal leakage from high to low pressure zones in the pump may occur. Lower carefully the entire rotating element into the lower half casing. Be sure that the wearing ring, stuffing box bushing and bearing housing "locks"...

  • Page 56: Changing Rotation Of Pump In Field

    7.6 Changing rotation of pump in field 35. Follow directions in 3 Preparation for operation on page 20 for initial operating condition and for starting pump. 7.6 Changing rotation of pump in field The rotation of these pumps can be changed without using additional parts. The following steps should be followed: Disassemble pump as outlined in 7.4 Dismantling of pump on page...

  • Page 57: Emergency Ball Bearing Replacement

    7.8 Emergency ball bearing replacement The original diametric clearance is .008" to .012". If this clearance has increased to more than .030", the shaft sleeve, and at times, the stuffing box bushing should be replaced. Condition of Shaft Sleeves: If the outer surface of the shaft sleeve at the packing area is deeply grooved, the sleeve should be replaced.

  • Page 58: Spare Parts

    7.9 Spare parts Place snap ring (361) in shaft groove. Be sure that the groove is clean and that the snap ring seats properly. Bolt bearing end cover (109 or 109A) to bearing housing. Be sure gasket (360) is in place.

  • Page 59: Instructions For Ordering Spare Parts

    7.10 Instructions for ordering spare parts Ball bearing collar (237) - one required. 7.10 Instructions for ordering spare parts Repair orders will be handled with the minimum of delay if the following directions are followed: Give the Model No., size of the pump and serial number. These can all be obtained from the name plate.
  • Page 60 7.10 Instructions for ordering spare parts 3405-3406-3416 Installation, Operation and Maintenance Instructions...
  • Page 61 Visit our website for the latest version of this document and more information: www.gouldspumps.com ITT - Goulds Pumps Vertical Products Operation 3951 Capitol Avenue City of Industry, CA 90601-1734 Form IOM.3405-3406-3416.en-US.2020-02 ©2020 ITT Corporation The original instruction is in English. All non-English instructions are translations of the original instruction.

This manual is also suitable for:

Goulds pumps 3406Goulds pumps 3416

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