Goulds Pumps 3996 Installation, Operation And Maintenance Instructions
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Goulds Pumps 3996 Installation, Operation And Maintenance Instructions

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Installation, Operation and Maintenance Instructions
Model 3996
L enntech
L enntech
info@lenntech.com Tel. +31-152-610-900
info@lenntech.com Tel. +31-152-610-900
www.lenntech.com Fax. +31-152-616-289
www.lenntech.com Fax. +31-152-616-289

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  • Page 1 Installation, Operation and Maintenance Instructions Model 3996 L enntech L enntech info@lenntech.com Tel. +31-152-610-900 info@lenntech.com Tel. +31-152-610-900 www.lenntech.com Fax. +31-152-616-289 www.lenntech.com Fax. +31-152-616-289...

  • Page 2: Trouble Shooting

    FOREWORD This manual provides instructions for the Installation, Operation, and Maintenance of the Goulds Model 3996 pump. This manual covers the standard product plus common options that are available. For special options, supplemental instructions are supplied. This manual must be read and understood before installation and start-up.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SAFETY GENERAL INFORMATION INSTALLATION OPERATION PREVENTATIVE MAINTENANCE DISASSEMBLY/REASSEMBLY TROUBLESHOOTING 3996 IOM 9/2010...
  • Page 4 Current manuals are available at www.gouldspumps.com/literature_ioms.html or by contacting your nearest Goulds Pumps sales representative. These manuals must be read and understood before installation and start-up. For additional information, contact your nearest Goulds Pumps sales representative or visit our Web site at www.gouldspumps.com.

  • Page 5: Safety Warnings

    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...
  • Page 6 Personal injury and/or equipment damage may occur if these instructions are not followed. If there is any question regarding these requirements or if the equipment is to be modified, please contact an ITT Goulds Pumps representative before proceeding. Example: Improper impeller adjustment could cause contact between the rotating and stationary parts, resulting in a spark and heat generation.
  • Page 7 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 equipment.
  • Page 8 General Precautions Alignment: Shaft alignment procedures must be followed to prevent catastrophic failure of drive WARNING components or unintended contact of rotating parts. Follow coupling manufacturer’s coupling installation and operation procedures. Before beginning any alignment procedure, make sure driver power is locked out. Failure WARNING to lock out driver power will result in serious physical injury.
  • Page 9 General Precautions Never operate the pump without liquid supplied to mechanical seal. Running a mechanical CAUTION seal dry, even for a few seconds, can cause seal damage and must be avoided. Physical injury can occur if mechanical seal fails. Never attempt to replace packing until the driver is properly locked out and the coupling WARNING spacer is removed.
  • Page 10 The code classification marked on the equipment must be in accordance with the specified area where the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds Pumps sales representative before proceeding.
  • Page 11 PARTS The use of genuine Goulds parts will provide the safest 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...
  • Page 12 3996 IOM 9/2010...

  • Page 13: Safety

    Operators and maintenance installed correctly. personnel must realize this and follow safety measures. ITT Industries Goulds Pumps shall not be liable for CAUTION physical injury, damage or delays caused by a failure to observe the instructions in this manual.
  • Page 14 In addition, care must be Ensuring that the pump is operated in the intended taken to ensure that the equipment is properly maintained. hydraulic range. This includes but is not limited to: Monitoring the pump frame and liquid end temperature. 3996 IOM 9/2010...

  • Page 15: Intended Use

    When installing in a potentially explosive environment, ensure that the motor is properly · Pressure gauges certified. · Flow meters · Level indicators · Motor load readings · Temperature detectors · Bearing monitors · Leak detectors · PumpSmart control system 3996 IOM 9/2010...
  • Page 16 3996 IOM 9/2010...

  • Page 17: General Information

    Care should be taken when unloading pumps. If shipment of Goulds Model 3996 pumps. It is recommended that is not delivered in good order and in accordance with the this manual be thoroughly reviewed prior to installing or Bill-of-Lading, note the damage or shortage on both performing any work on the pump or motor.
  • Page 18 (Fig. 1). Fig. 3 WARNING Units with drivers mounted can be top heavy. Driver weight could cause the assembled unit to overturn and could result in serious physical injury, or damage to pumps. Fig. 1 3996 IOM 9/2010...

  • Page 19: Nameplate Information

    (Fig. 6). ATEX Tag - If applicable, your pump unit may have the following ATEX tag affixed to the pump and/or baseplate. See Fig. 7 the Safety section for a description of the symbols and codes (Fig. 7). 3996 IOM 9/2010...
  • Page 20 3996 IOM 9/2010...

  • Page 21: Installation

    FOUNDATION AND BASEPLATE Pumping unit should be placed as close as practical to the Model 3996 In-Line pumps are designed to be mounted source of supply. Floor space and head room allotted to directly in, and supported by the piping. No supports the unit must be sufficient for inspection and under the pump are required.
  • Page 22 A means of priming the pump must be provided. Consult nearest sales office or factory for assistance in sizing orifice. An automatic recirculation control valve and/or solenoid operated valve should be considered if a constant bypass (i.e. orifice) is not possible. 3996 IOM 9/2010...
  • Page 23 ANSI pump bearing frame can be used in the done with the impeller touching the angle face. Model 3996. This frame may be used in emergencies or when it is desired to minimize inventory. The Model Tighten motor hold down bolts in a criss cross 3196 frame will not give built-in alignment, and normal pattern to the recommended torque.
  • Page 24 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. 3996 IOM 9/2010...

  • Page 25: Operation

    When installing in a potentially explosive Pure Oil Mist Lubrication environment, ensure that the motor is properly Pure oil mist is an optional feature for the Model 3996. certified. Follow oil mist generator manufacturer’s instructions. The inlet and outlet connections are located on the side of Checking Rotation the bearing frame.
  • Page 26 Also, for pumpage temperatures above 200° F (93° C) the cold (ambient) setting must be increased per Table 4. This is necessary to prevent the impeller from contacting the casing due to differential expansion from the higher operating temperatures. Fig. 8 3996 IOM 9/2010...
  • Page 27 Priming by ejector. · Priming by automatic priming pump. b. Install coupling guard. Refer to Coupling Guard Installation and Disassembly Section Appendix The coupling guard used in an ATEX classified environment must be constructed from a non-sparking material. 3996 IOM 9/2010...
  • Page 28 Variable speed drivers should be brought to rated casing temperature is within 38° C (100° F) of the speed as quickly as possible. pumpage temperature and evenly heated. NOTE: Warm-up rate should not exceed 1.4° C (2.5° F) per minute. 3996 IOM 9/2010...
  • Page 29 OPERATING UNDER FREEZING CONDITIONS Exposure to freezing conditions, while pump is idle, could cause liquid to freeze and damage the pump. Liquid inside pump should be drained. Liquid inside cooling coils, if supplied, should also be drained. 3996 IOM 9/2010...
  • Page 30 Check alignment while unit is still hot per alignment procedure in the Installation Section. Run the unit under actual operating conditions for a sufficient length of time to bring the pump and driver Reinstall coupling guard. and associated system up to operating temperature. 3996 IOM 9/2010...

  • Page 31: Maintenance Schedule

    Re- fer to Section 4 - Operation for packing INSPECTION INTERVALS gland adjustment. Inspection intervals should be shortened appropriately if the pumpage is abrasive and/or corrosive, or if the environment is classified as potentially explosive. 3996 IOM 9/2010...
  • Page 32 NOTE: If it is necessary to change grease type or consistency, the pump must be disassembled and the old grease removed from the bearings. Fig. 11 3996 IOM 9/2010...

  • Page 33: Stuffing Box

    Due to the diversity of operating MECHANICAL SEALS conditions it is, however, not possible to give definite When mechanical seals are furnished, a manufacturer’s indications as to its life. reference drawing is supplied with the data package. This 3996 IOM 9/2010...
  • Page 34 Dynamic seal parts do not wear substantially to affect operation unless the service is particularly abrasive or corrosive. Refer to Disassembly and Reassembly Section for maintenance, disassembly, and repair. Dynamic Seal with Chekseal™ Fig. 14 3996 IOM 9/2010...
  • Page 35 Dial Indicator Method Fig. 15 Set indicator to zero and back locking bolt (370C) out about one turn. Thread jack bolts (370D) in until they evenly contact Fig. 16 the bearing frame. Tighten the jack bolts evenly 3996 IOM 9/2010...
  • Page 36 It is good practice to periodically monitor vibration of the importance is that the vibration level not increase. If a pump. Normally, vibration level will be well below problem with vibration is encountered, refer to Trouble accepted standards. Of equal Shooting. 3996 IOM 9/2010...

  • Page 37: Required Tools

    · Bearing Puller Micrometer DISASSEMBLY The Model 3996 is designed to permit the complete WARNING pullout assembly to be removed without disturbing the casing or motor. The sectional drawing, parts list and Lock out power supply to driver motor to prevent construction details should be used in conjunction with accidental startup and physical injury.
  • Page 38 On units which have a shaft sleeve, (126), it is (106) and lantern ring (105) from stuffing box cover not necessary to remove rotary portion of seal from (184). the sleeve unless replacement of seal is required. 3996 IOM 9/2010...
  • Page 39 VENDOR IDENTIFICATION NUMBER Seal Chicago Crane Garlock Johns- Nat'l Victor Rawhide Mansville Inboard 13541 9080LPD 330663 6444BK3 Outboard 8626 137-187-8 76x6133 63647K5 92x6133 Inboard 175-287-12 63X922 63333 65X922 Outboard 112-200-8 64324K3 3996 IOM 9/2010...
  • Page 40 (122). On units with sleeves, the rotary portion of the seal may be mounted on the sleeve, and the seal-sleeve 2. Lubricate rotary portion of seal and slide on assembly mounted on the shaft as a unit. 3996 IOM 9/2010...

  • Page 41: Additional Details

    (184) away from the frame. frame adapter. c. Lubricate rotary portion of seal and slide on d. Lubricate rotary portion of seal and slide on shaft or sleeve. shaft (122) or sleeve (126). 3996 IOM 9/2010...

  • Page 42: Power End

    ENGINEERING DATA CONSTRUCTION DETAILS Power End POWER END MODEL 3996 ST MODEL 3996 MT At Impeller 3/4" (19) 1" (25) In Stuffing Box (Less Sleeve) 1 3/8" (35) 1 3/4"...
  • Page 43 150% of Working Pressure at 100°F (38°C) Maximum Liquid Temp. (without 250°F (120°C) Cooling) Max Liquid Temp. (with Cooling and 350°F (175°C) Grease Lube) Max. Liquid Temp. (with Cooling and 500°F (260°C) Oil Mist) Unit Weight SEE DIMENSIONS 3996 IOM 9/2010...

  • Page 44: Sectional Views

    H CAP SCREW 370C H CAP SCREW 370D H TAP BOLT 370H STUD 372J H CAP SCREW BRG LK WSHR MECH SEAL 412A O-RING IMPLR HEX NUT (370D) JACKING BOLT Fig. 17 469D ROLL PIN O-RING * RECOMMENDED SPARES 3996 IOM 9/2010...
  • Page 45 DYNAMIC SEAL / SELF DRAINING COVERS OPTIONS SECTIONAL VIEWS * RECOMMENDED SPARE PARTS 3996 IOM 9/2010...
  • Page 46 BEARING OPTIONS - SECTIONAL VIEW * RECOMMENDED SPARE PARTS 3996 IOM 9/2010...
  • Page 47 Nickel Titanium Ductile Iron GA-20 Hast. B.C. 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. 3996 IOM 9/2010...
  • Page 48 3996 IOM 9/2010...

  • Page 49: Troubleshooting

    10 Foot valve too small. Install correct size foot valve. Consult factory for proper depth. Use baffle to eliminate 11 Foot valve or suction pipe not immersed deep enough. vortices. 12 Entrained air or gases in liquid. Consult factory. 3996 IOM 9/2010...
  • Page 50 Increase NPSH available. Consult factory. 29 Pump capacity too low Consult factory for minimum continuous flow. 30 Excessive vibration See Preventive Maintenance / Vibration. 31 Improper bearing lubrication or bearings worn out Inspect and replace as required. 3996 IOM 9/2010...
  • Page 51 3996 IOM 9/2010...
  • Page 52 24 hours / day 365 days / year . . . Call 1-800-446-8537 L enntech L enntech info@lenntech.com Tel. +31-152-610-900 info@lenntech.com Tel. +31-152-610-900 www.lenntech.com Fax. +31-152-616-289 www.lenntech.com Fax. +31-152-616-289 © 2008 Goulds Pumps, Incorporated Form I3996 9/10 a subsidiary of ITT Corporation...

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