Goulds Pumps API 3171 User Manual
Goulds Pumps
Installation, Operation, and
Maintenance Manual
Model API 3171
Table of Contents
Introduction and Safety...................................................................................................................................................4
Introduction.......................................................................................................................................................................4
Safety...................................................................................................................................................................................4
Safety terminology and symbols..................................................................................................................................4
Environmental safety.....................................................................................................................................................5
User safety.......................................................................................................................................................................6
Ex-approved products...................................................................................................................................................7
Product warranty...............................................................................................................................................................8
Transportation and Storage............................................................................................................................................9
Inspect the delivery...........................................................................................................................................................9
Inspect the package........................................................................................................................................................9
Inspect the unit...............................................................................................................................................................9
Transportation guidelines.................................................................................................................................................9
Pump handling................................................................................................................................................................9
Lifting methods..............................................................................................................................................................9
Storage guidelines............................................................................................................................................................10
Pump storage requirements........................................................................................................................................10
Prepare the pump for long-term storage.................................................................................................................11
Table of Contents
Product Description........................................................................................................................................................12
General description.........................................................................................................................................................12
Enclosed lineshaft........................................................................................................................................................13
Nameplate information..................................................................................................................................................14
Permissible temperatures...............................................................................................................................................16
Installation.........................................................................................................................................................................17
Preinstallation...................................................................................................................................................................17
Inspect the pump.........................................................................................................................................................17
Pump location guidelines............................................................................................................................................18
Concrete foundation requirements...........................................................................................................................18
Support plate installation...............................................................................................................................................19
Install the support plate with a pit cover..................................................................................................................19
Install the support plate without a pit cover............................................................................................................19
Stuffing box installation.................................................................................................................................................20
Install the packed stuffing box...................................................................................................................................21
Install the pump, driver, and coupling.........................................................................................................................21
Motor installation and coupling alignment.................................................................................................................22
Install the motor...........................................................................................................................................................22
Alignment checks.........................................................................................................................................................22
Permitted indicator values for alignment checks....................................................................................................23
Align the coupling........................................................................................................................................................23
Float control installation................................................................................................................................................23
Install the Square D 9036 simplex and 9038 duplex float controls.....................................................................24
Piping checklists..............................................................................................................................................................26
General piping checklist..............................................................................................................................................26
Suction piping for optional dry pit, outside tank mount, and tailpipe applications..........................................27
Steam lines.....................................................................................................................................................................28
Final piping checklist...................................................................................................................................................28
Commissioning, Startup, Operation, and Shutdown............................................................................................29
Preparation for startup...................................................................................................................................................29
Model API 3171 Installation, Operation, and Maintenance Manual 1
Table of Contents
Check the rotation...........................................................................................................................................................29
Thrust bearing lubrication.............................................................................................................................................30
Flush the steady bearings............................................................................................................................................30
Sealed bearings.............................................................................................................................................................30
Lubricate the sealed bearings with grease cups.......................................................................................................31
Shaft sealing with a mechanical seal.............................................................................................................................32
Shaft sealing with a stuffing box...................................................................................................................................33
Steam jacket pumps (molten sulfur construction).....................................................................................................33
Impeller-clearance setting..............................................................................................................................................33
Set the impeller clearance - dial indicator method .................................................................................................33
Set the impeller clearance - feeler gauge method ...................................................................................................34
Pump priming..................................................................................................................................................................35
Install the coupling guard...............................................................................................................................................35
Start the pump.................................................................................................................................................................36
Pump operation precautions.........................................................................................................................................37
Shut down the pump......................................................................................................................................................37
Make the final alignment of the pump and driver......................................................................................................38
Maintenance......................................................................................................................................................................39
Maintenance schedule.....................................................................................................................................................39
Bearing maintenance.......................................................................................................................................................39
Thrust bearings............................................................................................................................................................40
Lubricate the bearings after a shutdown period......................................................................................................40
Lubricating-grease requirements...............................................................................................................................40
Steady bearings.............................................................................................................................................................41
Shaft-seal maintenance...................................................................................................................................................41
Mechanical-seal maintenance.....................................................................................................................................41
Packed stuffing-box maintenance..............................................................................................................................42
Disassembly......................................................................................................................................................................42
Disassembly precautions.............................................................................................................................................42
Tools required...............................................................................................................................................................43
Drain the pump............................................................................................................................................................43
Remove the pump from the sump............................................................................................................................43
Remove the impeller....................................................................................................................................................45
Disassemble the column.............................................................................................................................................46
Preassembly inspections.................................................................................................................................................47
Replacement guidelines...............................................................................................................................................47
Shaft replacement guidelines......................................................................................................................................48
Bearings inspection......................................................................................................................................................48
Bearing fits and tolerances..........................................................................................................................................49
Reassembly.......................................................................................................................................................................49
Assemble the column and support plate..................................................................................................................49
Assemble the rotating element...................................................................................................................................50
Assemble the column..................................................................................................................................................51
Assemble the impeller, suction cover, and strainer.................................................................................................51
Troubleshooting...............................................................................................................................................................53
Operation troubleshooting............................................................................................................................................53
Assembly troubleshooting.............................................................................................................................................54
Parts Listings and Cross-Sectional Drawings.........................................................................................................55
Cross-sectional diagram.................................................................................................................................................55
Dimensional drawings....................................................................................................................................................56
Parts list.............................................................................................................................................................................57
Other Relevant Documentation or Manuals...........................................................................................................60
For additional documentation.......................................................................................................................................60
2 Model API 3171 Installation, Operation, and Maintenance Manual
Table of Contents
Local ITT Contacts.........................................................................................................................................................61
Regional offices................................................................................................................................................................61
Model API 3171 Installation, Operation, and Maintenance Manual 3
Introduction and Safety
Introduction and Safety
Introduction
Purpose of this manual
The purpose of this manual is to provide necessary information for:
• Installation
• Operation
• Maintenance
CAUTION:
Read this manual carefully before installing and using the product. Improper use of the product can cause
personal injury and damage to property, and may void the warranty.
NOTICE:
Save this manual for future reference, and keep it readily available at the location of the unit.
Safety
WARNING:
• The operator must be aware of safety precautions to prevent physical injury.
• Any pressure-containing device can explode, rupture, or discharge its contents if it is over-pressurized.
Take all necessary measures to avoid over-pressurization.
• Operating, installing, or maintaining the unit in any way that is not covered in this manual could cause
death, serious personal injury, or damage to the equipment. This includes any modification to the
equipment or use of parts not provided by ITT. If there is a question regarding the intended use of
the equipment, please contact an ITT representative before proceeding.
• This manual clearly identifies accepted methods for disassembling units. These methods must be
adhered to. Trapped liquid can rapidly expand and result in a violent explosion and injury. Never apply
heat to impellers, propellers, or their retaining devices to aid in their removal.
• Do not change the service application without the approval of an authorized ITT representative.
CAUTION:
You must observe the instructions contained in this manual. Failure to do so could result in physical injury,
damage, or delays.
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
4 Model API 3171 Installation, Operation, and Maintenance Manual
Hazard levels
Hazard level Indication
A hazardous situation which, if not avoided, will
DANGER:
WARNING:
CAUTION:
result in death or serious injury
A hazardous situation which, if not avoided, could
result in death or serious injury
A hazardous situation which, if not avoided, could
result in minor or moderate injury
Introduction and Safety
Hazard categories
The Ex symbol
NOTICE:
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:
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
The Ex symbol indicates safety regulations for Ex-approved products when used in atmospheres that are
potentially explosive or flammable.
• A potential situation which, if not avoided,
could result in undesirable conditions
• A practice not related to personal injury
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 regulations.
• Clean up all spills in accordance with safety and environmental procedures.
• Report all environmental emissions to the appropriate authorities.
Model API 3171 Installation, Operation, and Maintenance Manual 5
Introduction and Safety
Electrical installation
For electrical installation recycling requirements, consult your local electric utility.
Recycling guidelines
Always follow local laws and regulations regarding recycling.
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:
• Helmet
• Safety goggles, preferably with side shields
• Protective shoes
• Protective gloves
• Gas mask
• Hearing protection
• First-aid kit
• Safety devices
NOTICE:
Never operate a unit unless safety devices are installed. Also see specific information about safety
devices in other chapters of this manual.
Electrical connections
Electrical connections must be made by certified electricians in compliance with all international, national,
state, and local regulations. For more information about requirements, see sections dealing specifically with
electrical connections.
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.
• 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.
Wash the skin and eyes
Do the following if chemicals or hazardous fluids have come into contact with your eyes or your skin:
6 Model API 3171 Installation, Operation, and Maintenance Manual
Introduction and Safety
If you need to wash
your...
Eyes
Skin
Then...
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.
1. Remove contaminated clothing.
2. Wash the skin with soap and water for at least one minute.
3. Seek medical attention, if required.
Ex-approved products
Follow these special handling instructions if you have an Ex-approved unit.
Personnel requirements
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 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
(for example, IEC/EN 60079-17).
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
explosive 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.
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
requirements is not limited to Europe. You can apply these guidelines to equipment installed in any
potentially explosive atmosphere.
Guidelines for compliance
Compliance is fulfilled only when you operate the unit within its intended use. Do not change the
conditions 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).
Model API 3171 Installation, Operation, and Maintenance Manual 7
Introduction and Safety
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.
• Genuine ITT parts are used.
• Only Ex-approved spare parts and accessories authorized by ITT are used in Ex-approved products.
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.
8 Model API 3171 Installation, Operation, and Maintenance Manual
Transportation and Storage
Inspect the delivery
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.
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.
Transportation and Storage
Transportation guidelines
Pump handling
WARNING:
• Make sure that the pump cannot roll or fall over and injure people or damage property.
• These pumps might use carbon or ceramic silicon carbide components. Do not drop the pump or
subject it to shock loads as this can damage the internal ceramic components.
NOTICE: Use a forklift truck or an overhead crane with sufficient capacity to move the pallet with the
pump unit on top. Failure to do so can result in equipment damage.
Lifting methods
WARNING:
• Assembled units and their components are heavy. Failure to properly lift and support this equipment
can result in serious physical injury and/or equipment damage. Lift equipment only at the specifically
identified lifting points. Lifting devices such as eyebolts, slings, and spreaders must be rated, selected,
and used for the entire load being lifted.
• Crush hazard. The unit and the components can be heavy. Use proper lifting methods and wear steeltoed shoes at all times.
• Do not attach sling ropes to shaft ends.
Use the supplied lifting lugs and suitable slings in order to lift the entire pump to a vertical position and
lower the unit into the sump. Then use the lifting lugs on the motor and a suitable sling in order to hoist
the motor into position. Use a tag line attached to the casing end in order to prevent the pump from
swinging.
Model API 3171 Installation, Operation, and Maintenance Manual 9
Transportation and Storage
Examples
Figure 1: Example of lifting motor properly with
lifting lugs
Figure 2: Example of lifting pump properly with
sling
Storage guidelines
Pump storage requirements
Requirements
Vertical pumps require proper preparation for storage and regular maintenance during storage. The pump
is considered in storage when it has been delivered to the job site and is awaiting installation.
For specific requirements for storing motors, gearheads, and engines, contact the equipment manufacturer.
Storage preparation
Condition Proper preparation
Indoor storage area (preferred)
Outdoor storage area (when indoor
storage is not available)
Placement of pumps and component
parts
Stacking of pumps or component parts
• Pave the area.
• Clean the area.
• Drain the area and keep it free from flooding.
• Observe all indoor storage requirements.
• Use weather-proof coverings such as flame-resistant sheeting
or tarpaulins.
• Place coverings in a manner that maximizes drainage and air
circulation.
• Tie coverings down in order to protect the pump from wind
damage.
• Place the pump on skids, pallets, or shoring higher than 6 in.
(15 cm) from the ground for good air circulation.
• Sort the parts in order to permit easy access for inspection
and/or maintenance without excessive handling.
• Make sure that racks, containers, or crates bear the full
weight of pumps or parts in order to prevent distortion.
• Keep identification markings readily visible.
• Immediately replace any cover you remove for internal
access.
10 Model API 3171 Installation, Operation, and Maintenance Manual
Condition Proper preparation
Rotation of the pump and bowl
assembly shaft
Controlled storage facilities
Uncontrolled storage facilities that have
uneven temperatures, higher humidity,
and/or dusty conditions)
When pump is not in regular operation
If a pump has been installed, but is not in regular operation for an extended period of time, such as during
a seasonal shutdown, then operate it for at least 15 minutes every two weeks, if possible.
Prepare the pump for long-term storage
For storage periods over six months, you must follow the pump storage requirements and this procedure:
1. Inspect the lube-oil and seal-flush piping and either fill the piping with rust-preventative oil, or recoat
the piping periodically in order to prevent corrosion.
2. Place 10 lbs (4.5 kg) of moisture-absorbing desiccant or 5.0 lbs (2.3 kg) of vapor-phase inhibitor
crystals near the center of the pump.
3. If the pump is assembled, place an additional one pound (0.5 kg) in the discharge nozzle and securely
fasten the nozzle to the discharge elbow.
4. Install a moisture indicator near the perimeter of the pump.
5. Cover the pump with black polyethylene with a minimum thickness of 6.0 mil (0.15 mm), and seal it
with tape.
6. Provide a small ventilation hole approximately 0.5 in. (12.0 mm) in diameter.
7. Provide a roof or shed shelter in order to protect the pump from direct exposure to the elements.
Transportation and Storage
• Rotate the pump and bowl assembly shaft counterclockwise
once a month, at a minimum.
• Never leave the shaft in a previous position or in the extreme
raised or lowered lateral position.
• Make sure that the shaft rotates freely.
• Maintain an even temperature of 10°F (6°C) or higher above
the dew point.
• Keep the relative humidity to less than 50%.
• Make sure that there is little or no dust.
• Inspect the pump periodically to make sure that all
preservatives are intact.
• Seal all pipe threads and flanged pipe covers with tape.
Model API 3171 Installation, Operation, and Maintenance Manual 11
Product Description
Product Description
General description
Product description
The Model API 3171 is a vertical submerged bearing sump and process pump that meets the requirements
of the 10th and 11th editions of API Standard 610 (ISO 13709).
This model is based on three bearing frames with 17 hydraulic sizes. The S/ST group has identical
bearings with a slightly different shaft on the impeller end for the S and ST. The M/MT group is identical
in all aspects for the power end. However, the liquid end of the MT is common with the S group except
that the MT is modified to accept a larger shaft. There are two MT sizes that are common with the S/ST
group.
This table shows the number of hydraulic sizes available for each drive-unit size group. Note that each
pump has a choice of two different discharge pipes which results in four combinations.
Drive-unit size group Number of hydraulic sizes
S/ST 9
M/MT 8
L 2
Casing
Impeller
Strainer
Discharge elbow
Column pipe
The casing has these features:
• A tangential discharge
• Is self-venting
• Has an integral bearing retainer
• Is precision-bored in order to ensure permanent alignment between the column casing, suction cover,
and bearing
The impeller is fully open, keyed to the shaft, and held in place by a self-locking capscrew in order to
ensure positive locking and prevent damage from reverse rotation. Impellers are spin-balanced (single
plane) to ISO G2.5. The impeller is provided with back vanes in order to reduce the axial thrust and
prevent the entrance of solids.
The impellers on this pump do not meet the dimensional requirements for dynamic balancing.
The flat plate strainer is designed to maximize draw-down in a given sump depth. Openings are sized to
prevent the entrance of large solids that are commonly found in open sumps.
The discharge elbow is designed to allow the pump to fit into the smallest possible opening. A threaded
connection to the discharge pipe allows the pipe to be changed without removing the pump from the
sump.
The column pipe has flanged connections that are machined in order to ensure true parallelism and to
maintain steady bearings concentric with the shaft.
Shaft
The standard design uses a one-piece shaft in order to ensure accurate alignment. The shaft is precisionground, polished, and straightened to keep vibration and deflection to a minimum. Standard bearing spans
keep the shaft well below first critical speed for all sizes.
12 Model API 3171 Installation, Operation, and Maintenance Manual
Bearings
Seals
Motor support
Product Description
The thrust bearing is grease- or oil-mist-lubricated and consists of a pair of single-row, angular contact ball
bearings arranged back-to back. The bearing is shouldered and locked to the shaft and housing. This
enables the bearing to carry all of the thrust loads and some of the radial load. All fits are precisionmachined to industry standards. The steady bearings are press fit sleeve bearings. Fits are designed for
optimum life under all operating conditions.
This pump has three seals:
Seal type Description
Upper labyrinth seal This seal is used to exclude dirt and water from the thrust
bearing.
Lower labyrinth seal This seal is used below the thrust bearing in order to contain the
grease and exclude any possible contamination.
Carbon Teflon® casing collar This seal is installed immediately behind the impeller in the casing
in order to minimize recirculation back to the sump and
maximize hydraulic efficiency.
Motor supports are cast construction and precision-machined in order to maintain proper alignment
between the motor and pump shaft with minimal shimming. Motor supports are designed for vertical Cface motors as standard. P-base supports and IEC adapters are available upon request.
Direction of rotation
The shaft rotates clockwise when you look down on the pump shaft.
Enclosed lineshaft
The enclosed lineshaft design lends itself well for applications where abrasives are present in the pumped
fluid, or when a bearing lubricant other than the pumped fluid is required.
Lubrication system
CAUTION:
The fluid must run continuously to ensure flow out of the column at all times. If the flush stops, the fluid
in the sump can back up into the column. This contaminates the bearings.
The main feature of this modified design is a positive lubrication system for all bearings. This design
requires a minimum of lubrication fluid due to the bushing located at the bottom of the column adapter
housing directly above the impeller.
Acceptable leak rates
Leaks (flows) across the bushing for certain pressure differentials are shown in this table. Higher pressures
will result in higher leaks.
Pressure differential (PSI) Approximate leak rate (GPM)
3.0 0.33
5.0 0.44
7.5 0.60
Standard materials of construction
• Floating bushings are 18-8 stainless steel housing and spring with a glass-filled Teflon bushing.
• Flush tubing is steel.
Drawing
Positive flow must be maintained at all times.
Model API 3171 Installation, Operation, and Maintenance Manual 13
2
1
Product Description
1. Flush Inlet connection 1/4 pressure = 3 PSI + "P" PSI
2. Maximum liquid level "P" PSI above suction
Nameplate information
Important information for ordering
Every pump has a nameplate that provides information about the pump. The nameplate is located on the
motor support.
14 Model API 3171 Installation, Operation, and Maintenance Manual
When you order spare parts, identify this pump information:
• Model
• Size
• Serial number
• Item numbers of the required parts
Refer to the nameplate on the pump casing for most of the information. See Parts List for item numbers.
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
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
Maximum pressure at 100ºF according to the pump design
@ 100F
Product Description
Nameplate on the 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
Model API 3171 Installation, Operation, and Maintenance Manual 15
Product Description
ATEX nameplate
Nameplate field Explanation
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. ANSI standard designation
MAT L. CONST Material of which the pump is constructed
SER. NO. Serial number of the pump
MAX. DSGN KG/CM3 @
20°C
Nameplate field Explanation
II Group 2
2 Category 2
G/D Pump can be used when gas and dust are present
T4 Temperature class
Kilograms per cubic centimeter at 20°C
NOTICE: Make sure that the code classifications on the pump are compatible with the specific
environment in which you plan to install the equipment. If they are not compatible, do not operate the
equipment and contact your ITT representative before you proceed.
Permissible temperatures
Code Maximum permissible surface
temperature
T1 842°F (450°C) 700°F (372°C)
T2 572°F (300°C) 530°F (277°C)
T3 392°F (200°C) 350°F (177°C)
T4 275°F (135°C) 235°F (113°C)
T5 212°F (100°C) Option not available
T6 185°F (85°C) Option not available
NOTICE:
The code classification marked on the equipment must be in accordance with the specified area where you
plan to install the equipment. If it is not, contact your ITT representative before you proceed.
Maximum permissible liquid
temperature
16 Model API 3171 Installation, Operation, and Maintenance Manual
Installation
A
Preinstallation
Precautions
WARNING:
• When installing in a potentially explosive environment, make sure that the motor is properly certified.
• You must earth (ground) all electrical equipment. This applies to the pump equipment, the driver, and
any monitoring equipment. Test the earth (ground) lead to verify that it is connected correctly.
NOTICE: Supervision by an authorized ITT representative is recommended to ensure proper installation.
Failure to do so may result in equipment damage or decreased performance.
Inspect the pump
1. Remove the plastic shipping plugs from the vent holes in the head column and the casing.
Installation
• "A" represents the location of the plugs
2. Remove all the equipment from the shipping containers.
Model API 3171 Installation, Operation, and Maintenance Manual 17
3. Completely clean the underside of the support plate and both sides of the optional pit cover, if
supplied.
4. Remove any grease from the machined surfaces.
Installation
Pump location guidelines
WARNING:
Assembled units and their components are heavy. Failure to properly lift and support this equipment can
result in serious physical injury and/or equipment damage. Lift equipment only at the specifically identified
lifting points. Lifting devices such as eyebolts, slings, and spreaders must be rated, selected, and used for
the entire load being lifted.
Guideline Explanation/comment
Make sure that the space around the pump is
sufficient.
If you require lifting equipment such as a hoist
or tackle, make sure that there is enough space
above the pump.
Protect the unit from weather and water damage
due to rain, flooding, and freezing temperatures.
Do not install and operate the equipment in
closed systems unless the system is constructed
with properly-sized safety devices and control
devices.
Take into consideration the occurrence of
unwanted noise and vibration.
Concrete foundation requirements
Requirements
Make sure that you meet these requirements when you prepare the pump foundation:
• The foundation must be able to absorb any vibration.
• The foundation must be able to form a permanent and rigid support for the pumping unit.
• The foundation must be of adequate strength in order to support the complete weight of the pump
and driver, plus the weight of the liquid that passes through it.
• There should be at least 0.5 in.(12.7 mm) clearance between the sides of the pump and any portion of
the pit.
This facilitates ventilation, inspection, maintenance, and
service.
This makes it easier to properly use the lifting
equipment and safely remove and relocate the
components to a safe location.
This is applicable if nothing else is specified.
Acceptable devices:
• Pressure relief valves
• Compression tanks
• Pressure controls
• Temperature controls
• Flow controls
If the system does not include these devices, consult the
engineer or architect in charge before you operate the
pump.
The best pump location for noise and vibration
absorption is on a concrete floor with subsoil
underneath.
Typical installation
A typical installation has these characteristics:
• Bolts with a pipe sleeve that is two and a half times the size of the bolt diameter embedded in the
concrete
• Properly sized
• Located in accordance with the dimensions given in the example drawing
• Enough space inside the pipe sleeves to allow the final position of the foundation bolts to align with
the holes in the sub-base flange
18 Model API 3171 Installation, Operation, and Maintenance Manual
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