ITT Goulds Pump 3355 User manual

Installation, Operation, and
Maintenance Manual
Model 3355

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 Ex-approved products ....................................................................................................................7
1.2.5 Description of ATEX ........................................................................................................................ 8
1.3 Product warranty .......................................................................................................................................8
2 Transportation and Storage............................................................................................................................ 10
2.1 Inspect the delivery ................................................................................................................................. 10
2.1.1 Inspect the package ......................................................................................................................10
2.1.2 Inspect the unit..............................................................................................................................10
2.2 Transportation guidelines ........................................................................................................................ 10
2.2.1 Precautions ................................................................................................................................... 10
2.2.2 Pump handling and lifting..............................................................................................................10
2.3 Storage guidelines................................................................................................................................... 11
2.3.1 Storage location ............................................................................................................................ 12
2.3.2 Pump storage requirements..........................................................................................................12
3 Product Description ........................................................................................................................................13
3.1 General description .................................................................................................................................13
3.1.1 Part description ............................................................................................................................. 14
3.2 Nameplate information ............................................................................................................................15
4 Installation........................................................................................................................................................18
4.1 Pre-installation......................................................................................................................................... 18
4.1.1 Pump location guidelines .............................................................................................................. 18
4.1.2 Foundation requirements .............................................................................................................. 19
4.2 Baseplate-mounting procedures ............................................................................................................. 20
4.2.1 Prepare the baseplate for mounting..............................................................................................20
4.2.2 Install the baseplate using shims or wedges.................................................................................20
4.2.3 Install the baseplate using jackscrews ..........................................................................................20
4.2.4 Install the baseplate using spring mounting ..................................................................................22
4.2.5 Install the baseplate using stilt mounting ......................................................................................23
4.2.6 Baseplate-leveling worksheet .......................................................................................................25
4.3 Pump-to-driver alignment ........................................................................................................................ 26
4.3.1 Alignment checks ..........................................................................................................................26
4.3.2 Permitted indicator values for alignment checks........................................................................... 27
4.3.3 Alignment measurement guidelines ..............................................................................................27
4.3.4 Attach the dial indicators for alignment ......................................................................................... 27
4.3.5 Pump-to-driver alignment instructions...........................................................................................27
4.4 Grout the baseplate.................................................................................................................................29
4.5 Piping checklists......................................................................................................................................31
4.5.1 Fastening ......................................................................................................................................31
4.5.2 General piping checklist ................................................................................................................31
Table of Contents
Model 3355 Installation, Operation, and Maintenance Manual 1

4.5.3 Suction-piping checklist.................................................................................................................33
4.5.4 Discharge piping checklist.............................................................................................................34
4.5.5 Final piping checklist .....................................................................................................................35
5 Commissioning, Startup, Operation, and Shutdown ...................................................................................36
5.1 Preparation for startup............................................................................................................................. 36
5.2 Remove the coupling guard .................................................................................................................... 37
5.3 Check the rotation ...................................................................................................................................38
5.4 Couple the pump and driver .................................................................................................................... 39
5.4.1 Install the coupling guard .............................................................................................................. 40
5.5 Pump priming ..........................................................................................................................................42
5.5.1 Prime the pump with the suction supply above the pump.............................................................42
5.5.2 Prime the pump with the suction supply below the pump ............................................................. 42
5.5.3 Other methods of priming the pump..............................................................................................43
5.6 Start the pump.........................................................................................................................................43
5.7 Pump operation precautions ................................................................................................................... 44
5.8 Shut down the pump ............................................................................................................................... 45
5.9 Make the final alignment of the pump and driver .................................................................................... 45
6 Maintenance.....................................................................................................................................................46
6.1 Maintenance schedule ............................................................................................................................ 46
6.2 Bearing maintenance .............................................................................................................................. 47
6.2.1 Ball bearing types..........................................................................................................................47
6.2.2 Grease lubrication schedule..........................................................................................................47
6.2.3 Lubricating-grease requirements ..................................................................................................47
6.2.4 Regrease the grease-lubricated bearings .....................................................................................48
6.2.5 Lubricate the bearings after a shutdown period ............................................................................48
6.3 Shaft-seal maintenance........................................................................................................................... 48
6.3.1 Mechanical-seal maintenance.......................................................................................................48
6.4 Disassembly ............................................................................................................................................ 49
6.4.1 Disassembly precautions .............................................................................................................. 49
6.4.2 Tools required................................................................................................................................ 50
6.4.3 Drain the pump..............................................................................................................................50
6.4.4 Prepare for disassembly ...............................................................................................................50
6.4.5 Disassemble the discharge end ball bearing for the radial suction configuration ......................... 50
6.4.6 Disassemble the pump body.........................................................................................................51
6.4.7 Disassemble the suction end ball bearings...................................................................................51
6.4.8 Remove the shaft seal ..................................................................................................................51
6.5 Preassembly inspections......................................................................................................................... 52
6.5.1 Replacement guidelines................................................................................................................52
6.6 Reassembly............................................................................................................................................. 52
6.6.1 Prepare for reassembly.................................................................................................................52
6.6.2 Reassemble the shaft seal............................................................................................................53
6.6.3 Reassemble the suction end ball bearings ...................................................................................53
6.6.4 Reassemble the pump body .........................................................................................................54
6.6.5 Complete the reassembly for the end suction configuration ......................................................... 55
6.6.6 Reassemble the discharge end ball bearings for the radial suction configuration ........................ 55
6.7 Assembly references............................................................................................................................... 56
6.7.1 Torque values................................................................................................................................ 56
6.7.2 Gap widths .................................................................................................................................... 56
Table of Contents
2 Model 3355 Installation, Operation, and Maintenance Manual

6.7.3 Nozzle loads..................................................................................................................................58
6.7.4 Recommended minimum flows .....................................................................................................59
6.7.5 Wearing parts and dimensions......................................................................................................60
7 Troubleshooting .............................................................................................................................................. 61
7.1 Alignment troubleshooting....................................................................................................................... 61
7.2 Operation troubleshooting ....................................................................................................................... 61
8 Parts Listings and Cross-sectional Drawings ..............................................................................................67
8.1 Recommended spare parts ..................................................................................................................... 67
8.2 Radial suction all-iron cross-sectional ..................................................................................................... 68
8.3 Radial suction all iron with stainless steel impeller cross sectional......................................................... 69
8.4 Radial suction stainless steel cross-sectional .........................................................................................70
8.5 End-suction all-iron cross-sectional......................................................................................................... 71
8.6 End-suction all-iron with stainless steel impeller cross-sectional ............................................................ 72
8.7 End-suction stainless steel cross-sectional ............................................................................................ 73
8.8 Radial suction (counterclockwise rotation) all-iron cross-sectional ......................................................... 74
8.9 Radial suction (counterclockwise rotation) all-iron with stainless steel impeller cross-sectional............. 75
8.10 Radial suction (counterclockwise rotation) stainless steel cross-sectional ........................................... 76
Table of Contents
Model 3355 Installation, 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:
•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.
• 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.
• 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.
1 Introduction and Safety
4 Model 3355 Installation, Operation, and Maintenance Manual

• 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.
• 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.
• Precautions must be taken to prevent physical injury. The pump may handle hazardous
and/or toxic fluids. Proper personal protective equipment should be worn. Pumpage must
be handled and disposed of in conformance with applicable environmental regulations.
• 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.
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 3355 Installation, 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
1.2.1.1 The Ex symbol
The Ex symbol indicates safety regulations for Ex-approved products when used in atmospheres that are
potentially explosive or flammable.
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.
1.2.3 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.
1.2 Safety
6 Model 3355 Installation, Operation, and Maintenance Manual

• 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:
•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 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.
1.2.4 Ex-approved products
Follow these special handling instructions if you have an Ex-approved unit.
The coupling guard used in an ATEX classified environment must be properly certified and
must be constructed from a spark resistant material.
Personnel requirements
These are the personnel requirements for Ex-approved products in potentially explosive atmospheres:
1.2 Safety
Model 3355 Installation, Operation, and Maintenance Manual 7

• All work on the product must be carried out by certified electricians and ITT-authorized mechanics.
Special rules apply to installations in explosive atmospheres.
• All users must know about the risks of electric current and the chemical and physical characteristics
of the gas, the vapor, or both present in hazardous areas.
• Any maintenance for Ex-approved products must conform to international and national standards.
ITT disclaims all responsibility for work done by untrained and unauthorized personnel.
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.
• The Ex-approved product must never run dry during normal operation. Dry running during service
and inspection is only permitted outside the classified area.
• Before you start work on the product, make sure that the product and the control panel are isolated
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, and that they are in use.
• 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 are provided by an authorized ITT representative.
1.2.5 Description of ATEX
The ATEX directives are a specification enforced in Europe for electrical and non-electrical equipment
installed in Europe. 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 re-
quirements is not limited to Europe. You can apply these guidelines to equipment installed in any poten-
tially explosive atmosphere.
1.2.5.1 Guidelines for compliance
Compliance is fulfilled only when you operate the unit within its intended use. Do not change the condi-
tions of the service without the approval of an ITT representative. When you install or maintain explosion
proof products, always comply with the directive and applicable standards (for example, IEC/EN 60079–
14).
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.
1.3 Product warranty
8 Model 3355 Installation, Operation, and Maintenance Manual

• All service and repair work is done by ITT-authorized personnel.
• 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
Model 3355 Installation, Operation, and Maintenance Manual 9

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 Precautions
WARNING:
•Stay clear of suspended loads.
• Observe accident prevention regulations in force.
2.2.2 Pump handling and lifting
Precautions for moving the pump
Use care when moving pumps. Consult with a lifting and rigging specialist before lifting or moving the
pump to avoid possible damage to the pump or injury to personnel.
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 Transportation and Storage
10 Model 3355 Installation, Operation, and Maintenance Manual

Precautions for lifting the pump
WARNING:
• Dropping, rolling or tipping units, or applying other shock loads, can cause property dam-
age and/or personal injury. Ensure that the unit is properly supported and secure during
lifting and handling.
• 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.
• 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.
• 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.
NOTICE:
•Make sure that the lifting equipment supports the entire assembly and is only used by au-
thorized personnel.
• Do not attach sling ropes to shaft ends.
Lifting the pump
Hoist a bare pump using suitable slings under the bearing housing saddle on each end.
Figure 1: Example of the proper lifting method for a bare pump
Figure 2: Example of the proper lifting method for a bare pump
Baseplate-mounted units have lifting points for use with proper lifting devices.
Figure 3: Example of the proper lifting method for baseplate-mounted units with a driver
2.3 Storage guidelines
2.3 Storage guidelines
Model 3355 Installation, Operation, and Maintenance Manual 11

2.3.1 Storage location
The product must be stored in a covered and dry location free from heat, dirt, and vibrations.
NOTICE:
•Protect the product against humidity, heat sources, and mechanical damage.
• Do not place heavy weights on the packed product.
2.3.2 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.
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.
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.
2.3 Storage guidelines
12 Model 3355 Installation, Operation, and Maintenance Manual

3 Product Description
3.1 General description
The Goulds Model 3355 is a radially-split, segmented casing, multistage pump that is designed with
modular interstage components. This pump is manufactured in cast iron and 316 stainless steel. This
pump can be configured in two ways:
•Radial suction (RS) configuration
• End suction (ES) configuration
Radial suction configuration
This configuration features radial suction and discharge nozzles. You can position each nozzle either ver-
tically or horizontally at 90° to either side. This design consists of two robust bearing housings with tradi-
tional bearings and mechanical seals on each end of the pump.
End suction configuration
This configuration features an end suction nozzle in conjunction with a radial discharge nozzle. You can
position the radial discharge nozzle either vertically or horizontally at 90° to either side. The suction end
of the pump utilizes a product-lubricated bearing that elminates the need for a second bearing housing
and mechanical seal.
Direction of rotation
The standard pump rotation is clockwise. As an option, the radial suction (RS) configuration can be
shaft-driven from the suction end in a counterclockwise rotation.
Intended applications
These pumps are well-suited for reverse osmosis and boiler feed applications.
3 Product Description
Model 3355 Installation, Operation, and Maintenance Manual 13

3.1.1 Part description
Casing
The pump consists of three pressure boundary parts:
•Suction casing - available in an end suction (ES) or radial suction (RS) configuration
The suction casing has 150 or 300 lb. flanges and the discharge casing has 300 or 600 lb. flanges.
• Discharge casing
• Interstage casings - number is dependent on the number of stages
Diffusers
Multi−vane diffusers provide smooth pulsation−free operation and eliminate radial loads in order to in-
crease the life of the bearing. This pump uses a diffuser design that is not an integral part of the inter-
stage casing. Each diffuser is precision machined to perfectly match the impeller hydraulics.
Impeller
The impeller is enclosed and keyed to the shaft. An inducer option is available for the end suction ar-
rangement.
Seal chamber
• The tapered bore seal chamber is self-venting and offers maximum cooling and flushing at the seal
face which increases the mechanical seal life.
• The standard seal arrangement features a single-balanced component seal on the discharge end
and a single-unbalanced component seal on the suction end of the RS configuration.
• Internal flushing (Plan 01) is standard.
• External piping plans are not required.
Shaft
The shaft is sized to transmit the required power across all operating conditions of the pump. Impeller
keyways are staggered in order to maintain a rotational shaft balance.
Shaft sleeves
Renewable shaft sleeves protect the shaft in the seal chamber area which provides a longer shaft life.
Bearings
• Bearings are grease lubricated.
• The thrust bearing consists of:
• A double-row thrust bearing for pump sizes 1.5 x 2.5−7 and 2.5 x 4−8
• Two angular contact ball bearings for pump sizes 4 x 5−10 and 5 x 6−11
These thrust bearing configurations provide bi-directional load-carrying capability.
• The RS configuration uses a grease-lubricated radial ball bearing.
• The ES configuration uses a product−lubricated radial bearing located between the first and second
stages.
Baseplate
The pump and motor are mounted on a common baseplate. The rigid, fabricated steel design reduces
vibration and helps to maintain the positive alignment of the pump and motor.
3.1 General description
14 Model 3355 Installation, Operation, and Maintenance Manual

Couplings
The standard baseplate design facilitates non−spacer couplings.
Coupling guard
Steel coupling guards are available and are designed to comply with OSHA requirements.
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
• 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.
Nameplate on the pump casing using English units
Figure 4: Nameplate on the pump casing using English units
Table 1: Explanation of nameplate on the pump casing
Nameplate field Explanation
IMPLR. DIA. Impeller diameter, in inches
MAX. DIA. Maximum impeller diameter, in inches
3.2 Nameplate information
Model 3355 Installation, Operation, and Maintenance Manual 15

Nameplate field Explanation
GPM Rated pump flow, in gallons per minute
FT HD Rated pump head, in feet
RPM Rated pump speed, revolutions per minute
MOD. Pump model
SIZE Size of the pump
STD. NO. ANSI standard designation
MAT L. CONST. Material of which the pump is constructed
SER. NO. Serial number of the pump
MAX DSGN PSI @
100ºF
Maximum pressure at 100ºF according to the pump design
Nameplate on the pump casing using metric units
Figure 5: Nameplate on pump casing using metric units
Table 2: Explanation of the nameplate on the pump casing
Nameplate field Explanation
IMPLR. DIA. Impeller diameter
MAX. DIA. Maximum impeller diameter
M3/HR Rated pump flow, in cubic meters per hour
M HD Rated pump head, in meters
RPM Rated pump speed, in revolutions per minute
MOD. Pump model
SIZE Size of the pump
STD. NO.
MAT L. CONST Material of which the pump is constructed
SER. NO. Serial number of the pump
MAX. DSGN KG/CM3 @ 20°C Kilograms per cubic centimeter at 20°C
ATEX nameplate
Figure 6: ATEX nameplate
3.2 Nameplate information
16 Model 3355 Installation, Operation, and Maintenance Manual

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
Model 3355 Installation, Operation, and Maintenance Manual 17

4 Installation
4.1 Pre-installation
Precautions
WARNING:
•When installing in a potentially explosive environment, ensure that the motor is properly
certified.
• All equipment being installed must be properly grounded to prevent unexpected dis-
charge. Discharge can cause equipment damage, electric shock, and result in serious in-
jury. Test the ground lead to verify it is connected correctly.
NOTICE:
•Electrical connections must be made by certified electricians in compliance with all inter-
national, national, state and local regulations.
• Supervision by an authorized ITT representative is recommended to ensure proper instal-
lation. Improper installation may result in equipment damage or decreased performance.
4.1.1 Pump location guidelines
Guideline Explanation/comment
Keep the pump as close to the liquid source as
practically possible.
This minimizes the friction loss and keeps the suction piping as
short as possible.
Make sure that the space around the pump is suffi-
cient.
A minimum of 1 meter | 3 feet is the recommenda-
tion.
This facilitates ventilation, inspection, maintenance, and serv-
ice.
If you require lifting equipment such as a hoist or
tackle, make sure that there is enough space above
the pump.
This makes it easier to properly use the lifting equipment and
safely remove and relocate the components to a safe location.
Protect the unit from weather and water damage
due to rain, flooding, and freezing temperatures.
This is applicable if nothing else is specified.
Do not install and operate the equipment in closed
systems unless the system is constructed with
properly-sized safety devices and control devices.
Acceptable devices:
•Pressure relief valves
• Compression tanks
• Pressure controls
• Temperature controls
• Flow controls
If the system does not include these devices, consult the engi-
neer or architect in charge before you operate the pump.
Take into consideration the occurrence of unwanted
noise and vibration.
The best pump location for noise and vibration absorption is on
a concrete floor with subsoil underneath.
4 Installation
18 Model 3355 Installation, Operation, and Maintenance Manual