ITT Goulds Pumps 3700 User manual

Installation, Operation, and
Maintenance Manual
Model 3700, 3703, 3710, 3700LF, 3700LFI API
Type OH2 / ISO 13709 1st and 2nd Ed. / API 610
8/9/10/11th Ed.

Table of Contents
1 Introduction and Safety ....................................................................................................................................4
1.1 Introduction................................................................................................................................................ 4
1.1.1 Requesting other information ..........................................................................................................4
1.2 Safety ........................................................................................................................................................4
1.2.1 Safety terminology and symbols ..................................................................................................... 5
1.2.2 Environmental safety.......................................................................................................................6
1.2.3 User safety ......................................................................................................................................6
1.2.4 Product approval standards ............................................................................................................ 8
1.2.5 Safety regulations for Ex-approved products in potentially explosive atmospheres ....................... 8
1.3 Product warranty .......................................................................................................................................9
2 Transportation and Storage............................................................................................................................ 11
2.1 Inspect the delivery ................................................................................................................................. 11
2.1.1 Inspect the package ...................................................................................................................... 11
2.1.2 Inspect the unit.............................................................................................................................. 11
2.2 Transportation guidelines ........................................................................................................................ 11
2.2.1 Pump handling .............................................................................................................................. 11
2.2.2 Lifting methods.............................................................................................................................. 11
2.3 Storage guidelines................................................................................................................................... 13
2.3.1 Pump storage requirements..........................................................................................................13
2.4 Frostproofing ...........................................................................................................................................13
3 Product Description ........................................................................................................................................14
3.1 General description 3700 ........................................................................................................................14
3.2 Nameplate information ............................................................................................................................15
4 Installation........................................................................................................................................................19
4.1 Pre-installation......................................................................................................................................... 19
4.1.1 Pump location guidelines .............................................................................................................. 19
4.1.2 Foundation requirements .............................................................................................................. 20
4.2 Baseplate-mounting procedures ............................................................................................................. 21
4.2.1 Prepare the baseplate for mounting..............................................................................................21
4.2.2 Prepare the foundation for mounting............................................................................................. 21
4.2.3 Install the baseplate using jackscrews ..........................................................................................21
4.3 Install the pump, driver, and coupling......................................................................................................23
4.4 Pump-to-driver alignment ........................................................................................................................ 23
4.4.1 Alignment checks ..........................................................................................................................24
4.4.2 Permitted indicator values for alignment checks........................................................................... 24
4.4.3 Alignment measurement guidelines ..............................................................................................25
4.4.4 Attach the dial indicators for alignment ......................................................................................... 25
4.4.5 Pump-to-driver alignment instructions...........................................................................................25
4.5 Grout the baseplate.................................................................................................................................29
4.6 Piping checklists......................................................................................................................................30
4.6.1 General piping checklist ................................................................................................................30
4.6.2 Suction-piping checklist.................................................................................................................32
4.6.3 Discharge piping checklist.............................................................................................................35
4.6.4 Bypass-piping considerations .......................................................................................................36
4.6.5 Auxiliary-piping checklist ...............................................................................................................36
Table of Contents
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
1

4.6.6 Final piping checklist .....................................................................................................................36
5 Commissioning, Startup, Operation, and Shutdown ...................................................................................37
5.1 Preparation for startup............................................................................................................................. 37
5.2 Remove the coupling guard .................................................................................................................... 38
5.3 Check the rotation ...................................................................................................................................39
5.4 Couple the pump and driver .................................................................................................................... 40
5.4.1 Coupling guard assembly..............................................................................................................40
5.4.2 Bearing lubrication ........................................................................................................................51
5.5 Shaft sealing with a mechanical seal ...................................................................................................... 54
5.6 Connection of sealing liquid for mechanical seals................................................................................... 55
5.7 Pump priming ..........................................................................................................................................55
5.7.1 Prime the pump with the suction supply above the pump.............................................................56
5.7.2 Prime the pump with the suction supply below the pump ............................................................. 56
5.7.3 Other methods of priming the pump..............................................................................................58
5.8 Start the pump.........................................................................................................................................58
5.9 Pump operation precautions ................................................................................................................... 59
5.10 Shut down the pump ............................................................................................................................. 61
5.11 Make the final alignment of the pump and driver................................................................................... 61
5.12 Dowel the pump casing (optional) ......................................................................................................... 61
6 Maintenance.....................................................................................................................................................63
6.1 Maintenance schedule ............................................................................................................................ 63
6.2 Bearing maintenance .............................................................................................................................. 64
6.3 Mechanical-seal maintenance................................................................................................................. 64
6.4 Disassembly ............................................................................................................................................ 65
6.4.1 Disassembly precautions .............................................................................................................. 65
6.4.2 Tools required................................................................................................................................ 65
6.4.3 Drain the pump..............................................................................................................................66
6.4.4 Remove the back pull-out assembly ............................................................................................. 66
6.4.5 Remove the coupling hub .............................................................................................................67
6.4.6 Remove the impeller (3700/3710).................................................................................................68
6.4.7 Remove the impeller (3703)..........................................................................................................68
6.4.8 Remove the impeller (3700LF/3700LFI) .......................................................................................69
6.4.9 Remove venturi insert ................................................................................................................... 70
6.4.10 Remove the seal-chamber cover ................................................................................................ 70
6.4.11 Remove the optional water-jacket cover ..................................................................................... 71
6.4.12 Disassemble the power end........................................................................................................72
6.5 Preassembly inspections......................................................................................................................... 77
6.5.1 Replacement guidelines................................................................................................................77
6.5.2 Fastening ......................................................................................................................................80
6.5.3 Shaft replacement guidelines........................................................................................................80
6.5.4 Bearings inspection.......................................................................................................................81
6.5.5 Wear rings inspection and replacement (Not applicable for 3703/3700LF/3700LFI) .................... 81
6.5.6 Seal-chamber cover inspection and replacement .........................................................................88
6.5.7 Bearing-frame inspection .............................................................................................................. 90
6.5.8 Bearing fits and tolerances............................................................................................................91
6.6 Reassembly............................................................................................................................................. 92
6.6.1 Assemble the power end...............................................................................................................92
6.6.2 Assemble the frame ...................................................................................................................... 97
Table of Contents
2 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

6.6.3 Install the optional water-jacket cover .........................................................................................102
6.6.4 Install the seal-chamber cover .................................................................................................... 103
6.6.5 Install the cartridge-type mechanical seal and seal-chamber cover ...........................................107
6.6.6 Determining impeller spacer thickness (applicable for 3703/3700LF/3700LFI) .......................... 109
6.6.7 Install the impeller (3700/3710)...................................................................................................109
6.6.8 Install the impeller (3703)............................................................................................................109
6.6.9 Install the impeller (3700LF/3700LFI) ......................................................................................... 110
6.6.10 Install the coupling hub ............................................................................................................. 110
6.6.11 Install the back pull-out assembly in the casing ........................................................................ 111
6.6.12 Install the Venturi Insert (3700LFI only) .................................................................................... 112
6.6.13 Post-assembly checks .............................................................................................................. 112
6.6.14 Assembly references................................................................................................................. 113
7 Troubleshooting ............................................................................................................................................ 118
7.1 Operation troubleshooting ..................................................................................................................... 118
7.2 Alignment troubleshooting..................................................................................................................... 119
7.3 Assembly troubleshooting ..................................................................................................................... 119
8 Parts Listings and Cross-Sectionals...........................................................................................................120
8.1 Parts list................................................................................................................................................. 120
9 Local ITT Contacts ........................................................................................................................................123
9.1 Regional offices..................................................................................................................................... 123
Table of Contents
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
3

1 Introduction and Safety
1.1 Introduction
Purpose of this manual
The purpose of this manual is to provide necessary information for:
•Installation
• Operation
• Maintenance
CAUTION:
Failure to observe the instructions contained in this manual could result in personal injury
and/or property damage, and may void the warranty. Read this manual carefully before instal-
ling and using the product.
NOTICE:
Save this manual for future reference and keep it readily available.
1.1.1 Requesting other information
Special versions can be supplied with supplementary instruction leaflets. See the sales contract for any
modifications or special version characteristics. For instructions, situations, or events that are not consid-
ered in this manual or in the sales documents, please contact the nearest ITT representative.
Always specify the exact product type and identification code when requesting technical information or
spare parts.
1.2 Safety
WARNING:
•Risk of serious personal injury. Applying heat to impellers, propellers, or their retaining
devices can cause trapped liquid to rapidly expand and result in a violent explosion. This
manual clearly identifies accepted methods for disassembling units. These methods must
be adhered to. Never apply heat to aid in their removal unless explicitly stated in this
manual.
• The operator must be aware of the pumpage and take appropriate safety precautions to
prevent physical injury.
• Risk of serious injury or death. If any pressure-containing device is over-pressurized, it
can explode, rupture, or discharge its contents. It is critical to take all necessary meas-
ures to avoid over-pressurization.
• Risk of death, serious personal injury, and property damage. Installing, operating, or
maintaining the unit using any method not prescribed in this manual is prohibited. Prohib-
ited methods include any modification to the equipment or use of parts not provided by
ITT. If there is any uncertainty regarding the appropriate use of the equipment, please
contact an ITT representative before proceeding.
1 Introduction and Safety
4 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

• If the pump or motor is damaged or leaking, electric shock, fire, explosion, liberation of
toxic fumes, physical harm, or environmental damage may result. Do not operate the unit
until the problem has been corrected or repaired.
• Risk of serious personal injury or property damage. Dry running may cause rotating parts
within the pump to seize to non-moving parts. Do not run dry.
• Risk of death, serious personal injury, and property damage. Heat and pressure buildup
can cause explosion, rupture, and discharge of pumpage. Never operate the pump with
suction and/or discharge valves closed.
• Running a pump without safety devices exposes operators to risk of serious personal in-
jury or death. Never operate a unit unless appropriate safety devices (guards, etc.) are
properly installed. See specific information about safety devices in other sections of this
manual.
CAUTION:
•Risk of injury and/or property damage. Operating a pump in an inappropriate application
can cause over pressurization, overheating, and/or unstable operation. Do not change the
service application without the approval of an authorized ITT representative.
1.2.1 Safety terminology and symbols
About safety messages
It is extremely important that you read, understand, and follow the safety messages and regulations
carefully before handling the product. They are published to help prevent these hazards:
•Personal accidents and health problems
• Damage to the product
• Product malfunction
Hazard levels
Hazard level Indication
DANGER:
A hazardous situation which, if not avoided, will result in death or seri-
ous injury
WARNING:
A hazardous situation which, if not avoided, could result in death or
serious injury
CAUTION:
A hazardous situation which, if not avoided, could result in minor or
moderate injury
NOTICE:
• A potential situation which, if not avoided, could result in unde-
sirable conditions
•A practice not related to personal injury
Hazard categories
Hazard categories can either fall under hazard levels or let specific symbols replace the ordinary hazard
level symbols.
Electrical hazards are indicated by the following specific symbol:
1.2 Safety
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
5

ELECTRICAL HAZARD:
These are examples of other categories that can occur. They fall under the ordinary hazard levels and
may use complementing symbols:
•Crush hazard
• Cutting hazard
• Arc flash hazard
1.2.2 Environmental safety
The work area
Always keep the station clean to avoid and/or discover emissions.
Waste and emissions regulations
Observe these safety regulations regarding waste and emissions:
• Appropriately dispose of all waste.
• Handle and dispose of the processed liquid in compliance with applicable environmental regula-
tions.
• Clean up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
WARNING:
If the product has been contaminated in any way, such as from toxic chemicals or nuclear radi-
ation, do NOT send the product to ITT until it has been properly decontaminated and advise
ITT of these conditions before returning.
Electrical installation
For electrical installation recycling requirements, consult your local electric utility.
1.2.2.1 Recycling guidelines
Always follow local laws and regulations regarding recycling.
1.2.3 User safety
General safety rules
These safety rules apply:
• Always keep the work area clean.
• Pay attention to the risks presented by gas and vapors in the work area.
• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash hazards.
• Always bear in mind the risk of drowning, electrical accidents, and burn injuries.
Safety equipment
Use safety equipment according to the company regulations. Use this safety equipment within the work
area:
1.2 Safety
6 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

• Helmet
• Safety goggles, preferably with side shields
• Protective shoes
• Protective gloves
• Gas mask
• Hearing protection
• First-aid kit
• Safety devices
Electrical connections
Electrical connections must be made by certified electricians in compliance with all international, nation-
al, state, and local regulations. For more information about requirements, see sections dealing specifical-
ly with electrical connections.
1.2.3.1 Precautions before work
Observe these safety precautions before you work with the product or are in connection with the product:
• Provide a suitable barrier around the work area, for example, a guard rail.
• Make sure that all safety guards are in place and secure.
• Make sure that the equipment is properly insulated when it operates at extreme temperatures.
• Recognize the site emergency exits, eye wash stations, emergency showers and toilets.
• Allow all system and pump components to cool before you handle them.
• Make sure that you have a clear path of retreat.
• Make sure that the product cannot roll or fall over and injure people or damage property.
• Make sure that the lifting equipment is in good condition.
• Use a lifting harness, a safety line, and a breathing device as required.
• Make sure that the product is thoroughly clean.
• Make sure that there are no poisonous gases within the work area.
• Make sure that you have quick access to a first-aid kit.
• Disconnect and lock out power before servicing.
• Check the explosion risk before you weld or use electric hand tools.
1.2.3.2 Wash the skin and eyes
1. Follow these procedures for chemicals or hazardous fluids that have come into contact with your
eyes or your skin:
Condition Action
Chemicals or hazardous fluids
in eyes
1. Hold your eyelids apart forcibly with your fingers.
2. Rinse the eyes with eyewash or running water for at least 15 minutes.
3. Seek medical attention.
Chemicals or hazardous fluids
on skin
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least 1 minute.
3. Seek medical attention, if necessary.
1.2 Safety
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
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1.2.4 Product approval standards
Regular standards
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure the pump driver and all other auxiliary components meet the required area classifica-
tion at the site. If they are not compatible, do not operate the equipment and contact an ITT
representative before proceeding.
All standard products are approved according to CSA standards in Canada and UL standards in USA.
The drive unit degree of protection follows IP68 See the nameplate for maximum submersion, according
to standard IEC 60529.
All electrical ratings and performance of the motors comply with IEC 600341.
1.2.5 Safety regulations for Ex-approved products in potentially explosive
atmospheres
Description of ATEX
The ATEX directives are a specification enforced in Europe for electrical and non-electrical equipment.
ATEX deals with the control of potentially explosive atmospheres and the standards of equipment and
protective systems used within these atmospheres. The relevance of the ATEX requirements is not limit-
ed to Europe. You can apply these guidelines to equipment installed in any potentially explosive atmos-
phere.
Guidelines for compliance
Compliance is only fulfilled when the pump is operated within its intended use, for example within its in-
tended hydraulic range. The conditions of the service must not be changed without approval of an au-
thorized ITT representative. When installing or maintaining explosion-proof pumps, follow these guide-
lines:
• Always install ATEX-approved equipment in compliance with the directive and applicable stand-
ards.
• Do not install explosion proof products in locations that are classified as hazardous in the national
electric code, ANSI/NFPA 70–2005.
WARNING:
Risk of serious personal injury. Applying heat to impellers, propellers, or their retaining devices
can cause trapped liquid to rapidly expand and result in a violent explosion. This manual clear-
ly identifies accepted methods for disassembling units. These methods must be adhered to.
Never apply heat to aid in their removal unless explicitly stated in this manual.
If there are any questions regarding these requirements, the intended use, or if the equipment requires
modification, contact an ITT representative before you proceed.
Personnel requirements
ITT disclaims all responsibility for work done by untrained and unauthorized personnel.
These are the personnel requirements for Ex-approved products in potentially explosive atmospheres:
• All work on the product must be carried out by certified electricians and ITT-authorized mechan-
ics. Special rules apply to installations in explosive atmospheres.
1.2 Safety
8 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

• All users must know about the risks of electric current and the chemical and physical character-
istics of the gas and/or vapor present in hazardous areas.
• Any maintenance for Ex-approved products must conform to international and national stand-
ards.
Product and product handling requirements
These are the product and product handling requirements for Ex-approved products in potentially explo-
sive atmospheres:
•Only use the product in accordance with the approved motor data stated on the nameplates.
• The Ex-approved product must never run dry during normal operation. Dry running during service
and inspection is only permitted outside the classified area.
• Never start a pump without the proper priming.
• Before you start working with the product, make sure that the product and the control panel are iso-
lated from the power supply and the control circuit, so they cannot be energized.
• Do not open the product while it is energized or in an explosive gas atmosphere.
• Make sure that thermal contacts are connected to a protection circuit according to the approval
classification of the product.
• Intrinsically safe circuits are normally required for the automatic level-control system by the level
regulator if mounted in zone 0.
• The yield stress of fasteners must be in accordance with the approval drawing and the product
specification.
• Do not modify the equipment without approval from an authorized ITT representative.
• Only use parts that have been provided by an authorized ITT representative.
Equipment for monitoring
For additional safety, use condition-monitoring devices. Condition-monitoring devices include but are not
limited to these devices:
• Pressure gauges
• Flow meters
• Level indicators
• Motor load readings
• Temperature detectors
• Bearing monitors
• Leak detectors
• PumpSmart control system
1.3 Product warranty
Coverage
ITT undertakes to remedy faults in products from ITT under these conditions:
• The faults are due to defects in design, materials, or workmanship.
• The faults are reported to an ITT representative within the warranty period.
• The product is used only under the conditions described in this manual.
• The monitoring equipment incorporated in the product is correctly connected and in use.
• All service and repair work is done by ITT-authorized personnel.
1.3 Product warranty
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
9

• Genuine ITT parts are used.
• Only Ex-approved spare parts and accessories authorized by ITT are used in Ex-approved prod-
ucts.
Limitations
The warranty does not cover faults caused by these situations:
• Deficient maintenance
• Improper installation
• Modifications or changes to the product and installation made without consulting ITT
• Incorrectly executed repair work
• Normal wear and tear
ITT assumes no liability for these situations:
• Bodily injuries
• Material damages
• Economic losses
Warranty claim
ITT products are high-quality products with expected reliable operation and long life. However, should
the need arise for a warranty claim, then contact your ITT representative.
1.3 Product warranty
10 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

2 Transportation and Storage
2.1 Inspect the delivery
2.1.1 Inspect the package
1. Inspect the package for damaged or missing items upon delivery.
2. Note any damaged or missing items on the receipt and freight bill.
3. File a claim with the shipping company if anything is out of order.
If the product has been picked up at a distributor, make a claim directly to the distributor.
2.1.2 Inspect the unit
1. Remove packing materials from the product.
Dispose of all packing materials in accordance with local regulations.
2. Inspect the product to determine if any parts have been damaged or are missing.
3. If applicable, unfasten the product by removing any screws, bolts, or straps.
For your personal safety, be careful when you handle nails and straps.
4. Contact your sales representative if anything is out of order.
2.2 Transportation guidelines
2.2.1 Pump handling
WARNING:
Dropping, rolling or tipping units, or applying other shock loads, can cause property damage
and/or personal injury. Ensure that the unit is properly supported and secure during lifting and
handling.
CAUTION:
Risk of injury or equipment damage from use of inadequate lifting devices. Ensure lifting devi-
ces (such as chains, straps, forklifts, cranes, etc.) are rated to sufficient capacity.
2.2.2 Lifting methods
WARNING:
•Risk of serious personal injury or equipment damage. Proper lifting practices are critical
to safe transport of heavy equipment. Ensure that practices used are in compliance with
all applicable regulations and standards.
• Safe lifting points are specifically identified in this manual. It is critical to lift the equipment
only at these points. Integral lifting eyes or eye bolts on pump and motor components are
intended for use in lifting the individual components only.
• Lifting and handling heavy equipment poses a crush hazard. Use caution during lifting
and handling and wear appropriate Personal Protective Equipment (PPE, such as steel-
toed shoes, gloves, etc.) at all times. Seek assistance if necessary.
2 Transportation and Storage
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
11

Table 1: Methods
Pump type Lifting method
A bare pump without lifting handles Use a suitable sling attached properly to solid points like the casing, the flang-
es, or the frames.
A bare pump with lifting handles Lift the pump by the handles.
A base-mounted pump Use slings under the pump casing and the drive unit, or under the base rails.
Examples
Figure 1: Example of a proper lifting method
Figure 2: Example of a proper lifting method
2.2 Transportation guidelines
12 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

Figure 3: Example of a proper lifting method
2.3 Storage guidelines
2.3.1 Pump storage requirements
Storage requirements depend on the amount of time that you store the unit. The normal packaging is
designed only to protect the unit during shipping.
Length of time in storage Storage requirements
Upon receipt/short-term (less than six
months)
• Store in a covered and dry location.
•Store the unit free from dirt and vibrations.
Long-term (more than six months) • Store in a covered and dry location.
•Store the unit free from heat, dirt, and vibrations.
• Rotate the shaft by hand several times at least every three months.
Treat bearing and machined surfaces so that they are well preserved. Refer to drive unit and coupling
manufacturers for their long-term storage procedures.
You can purchase long-term storage treatment with the initial unit order or you can purchase it and apply
it after the units are already in the field. Contact your local ITT sales representative.
2.4 Frostproofing
Table 2: Situations when the pump is or is not frostproof
Situation Condition
Operating The pump is frostproof.
Immersed in a liquid The pump is frostproof.
Lifted out of a liquid into a temperature below freezing The impeller might freeze.
2.3 Storage guidelines
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
13

3 Product Description
3.1 General description 3700
Product description
The Model 3700 is a high-pressure, high-temperature centrifugal pump that meets the requirements of
API Standard 610 10th Edition (ISO 13709).
Figure 4: 3700 pump
Casing
The casing is a centerline-mounted design. The gasket is fully confined.
The standard flanges are ANSI Class 300 raised-face serrated. The following flanges are also available:
•ANSI Class 300 flat-face serrated
• ANSI Class 300 ring joint
• ANSI Class 600 flat-face serrated
• ANSI Class 600 ring joint
Impeller
Flange Orientation
• End Suction (3700/3700LF/3703/3700LFI)
• Top Suction (3710)
The impeller is fully enclosed and key driven by the shaft. One of the following parts prevents axial
movement:
• Impeller bolt with a lockwasher
• Impeller nut with a locking set screw
3 Product Description
14 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

Table 3: Impeller
3700/3710 3700LF/3703/3700LFI
Enclosed Impeller Semi-open Impeller
Seal-chamber cover
The seal-chamber cover meets API 682 3rd Edition dimensions for improved performance of mechanical
seals.
Power end
The power end has the following characteristics:
•Standard ring oil-lubricated bearings
• Labyrinth seals on the power end
• Optional pure and purge oil mist lubrication (some machining is required to convert from ring oil lu-
brication to oil mist)
Shaft
The standard shaft is machined and ground to comply with API 610 11th Edition (ISO 13709) criteria.
Bearings
Bearing type Characteristics
Inboard (radial) • Consists of a single-row deep-groove ball bearing
•Carries only radial load
• Freely floats axially in the frame
Outboard
(thrust)
• Consists of a duplex-angular contact bearing, which uses a pair of single-row angular con-
tact ball bearings mounted back-to-back
•Shouldered and locked to the shaft
• Retained in the bearing frame to enable it to carry radial and thrust loads
All fits are precision-machined to industry standards.
Baseplate
The fabricated steel baseplate supports the pump, driver, and accessories in accordance with API-610
11th Edition (ISO 13709) requirements.
Direction of rotation
The shaft rotates counterclockwise when viewed from the drive end.
3.2 Nameplate information
Important information for ordering
Every pump has a nameplate that provides information about the pump. The nameplate is located on the
pump casing.
When you order spare parts, identify this pump information:
• Model
• Size
• Serial number
3.2 Nameplate information
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
15

• Item numbers of the required parts
Item numbers can be found in the spare parts list.
Refer to the nameplate on the pump casing for most of the information. See Parts List for item numbers.
Nameplate types
Nameplate Description
Pump casing
Pump
Provides information about the hydraulic characteristics of the pump.
The formula for the pump size is: Discharge x Suction - Nominal Maximum Impeller Diameter in
inches.
(Example: 2x3-8)
ATEX If applicable, your pump unit might have an ATEX nameplate affixed to the pump, the base-
plate, or the discharge head. The nameplate provides information about the ATEX specifica-
tions of this pump.
IECEx If applicable, your pump unit might have the following IECEx nameplate affixed to the pump
and/or baseplate. The nameplate provides information about the IECEx specifications of this
pump.
Nameplate on the pump casing using English units
Figure 5: Nameplate on the pump casing using English units
Nameplate field Explanation
MODEL Pump model
SIZE Size of the pump
FLOW Rated pump flow, in gallons per minute
HEAD Rated pump head, in feet
RPM Rated pump speed, in revolutions per minute
HYDRO PRESS Hydrostatic pressure at 100°F, in pounds per square inch
MAX. DES. WORKING PRESS Maximum working pressure at temperature °F, in pounds per square inch
S/N Serial number of the pump
CONT./ITEM NO. Customer contract or item number
IMP. DIA. Rated impeller diameter, inches
MAX. DIA. Maximum impeller diameter, inches
STD. DIM. Standard ANSI dimensional code
MAT'L Material of construction
3.2 Nameplate information
16 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual

Nameplate on the pump casing using metric units
Figure 6: Metric units - nameplate on pump casing
Nameplate field Explanation
MODEL Pump model
SIZE Size of the pump
FLOW Rated pump flow, in cubic meters per hour
HEAD Rated pump head, in meters
RPM Rated pump speed, in revolutions per minute
HYDRO PRESS Hydrostatic pressure at 38°C in kilopascals gauge
MAX. DES. WORKING PRESS Maximum working pressure at temperature °C in kilopascals gauge
S/N Serial number of the pump
CONT./ITEM NO. Customer contract or item number
IMP. DIA. Rated impeller diameter, millimeters
MAX. DIA. Maximum impeller diameter, millimeters
STD. DIM. Standard ANSI dimensional code
MAT'L Material of construction
Nameplate on the bearing frame
Figure 7: Nameplate on the bearing frame
Table 4: Explanation of the nameplate on the bearing frame
Nameplate field Explanation
BRG. O. B. Outboard bearing designation
BRG. I. B. Inboard bearing designation
S/N Serial number of the pump
LUBE Lubricant, oil or grease
ATEX nameplate
Figure 8: ATEX nameplate
3.2 Nameplate information
Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual
17

Nameplate field Explanation
II Group 2
2 Category 2
G/D Use when gas and dust are present
T4 Temperature class
The code classification marked on the equipment should be in accordance with the specified area where
the equipment will be installed. If it is not, please contact your ITT/Goulds representative before proceed-
ing.
WARNING:
Use of equipment unsuitable for the environment can pose risks of ignition and/or explosion.
Ensure the pump driver and all other auxiliary components meet the required area classifica-
tion at the site. If they are not compatible, do not operate the equipment and contact an ITT
representative before proceeding.
3.2 Nameplate information
18 Model 3700, 3703, 3710, 3700LF, 3700LFI API Type OH2 / ISO 13709 1st and 2nd Ed. / API 610 8/9/10/11th Ed. Instal-
lation, Operation, and Maintenance Manual