Sundyne LMV-803Lr Instruction manual

http://www.sundyne.com
Installation, Operation
& Maintenance Manual
Sundyne Pumps
Model:
LMV-803Lr

http://www.sundyne.com
Copyright
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording or otherwise without the prior permission of Sundyne LLC.
© 2018 Sundyne LLC
Warranty
Sundyne LLC warrants to Buyer for a period of twelve (12) months from the date of being placed in service (but not to exceed eighteen
(18) months after the date of shipment) that the equipment at the time of shipment will be free from defects of design, material and
workmanship. If any defects or malperformance occur during the warranty period, Sundyne’s sole obligation shall be limited to
alteration, repair or replacement at Sundyne’s expense, F.O.B. Factory, of parts or equipment, which upon return to Sundyne and
upon Sundyne’s examination prove to be defective. Equipment and accessories not manufactured by Sundyne are warranted only to
the extent of and by the original manufacturers’ warranty. Sundyne shall not be liable for damage or wear to equipment caused by
abnormal conditions, vibration, failure to properly prime or to operate equipment without flow or caused by corrosives, abrasives or
foreign objects. THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER
EXPRESSED OR IMPLIED INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE. In no event shall Sundyne be liable for consequential or incidental damages

Revisions
December 2015 Original Release
January 2019
Update Introduction Content
Add Cryogenic Options
Revised shimming process
IOM Location Numbers updated

SA-07-11-87 Rev A i January 2019
Contents
CONTENTS ..........................................I
INTRODUCTION..................................1
Sundyne Centrifugal Pumps...........................1
Text Symbols....................................................2
Equipment and Safety Precautions................3
Wearing Personal Protective Equipment.......3
Lifting .............................................................3
Using Forklifts................................................3
Ensuring Electrical Safety..............................4
Testing Equipment.........................................4
Using Chemicals............................................4
Protection from Falling...................................4
Preventative Machine Guards .......................4
Pre-Commission Checklist..............................5
Familiarizing Yourself with the Pump ............5
Cartridge Seal Preparation............................5
Driver Instructions..........................................5
Verifying Auxiliaries .......................................5
Checking Driver Rotation...............................5
Piping Connections........................................5
General..............................................................6
Application or Use..........................................6
Start Up Checklist ............................................6
Pressurizing the Fluid Loop...........................6
Venting...........................................................6
Setting the Valves..........................................6
Control Checklist .............................................6
Verifying Operating Conditions......................6
Installation and Start-Up Checklist ................7
INSTALLATION...................................8
Inspection.........................................................8
Storing Your Pump Short-Term......................8
Storing Your Pump Long-Term......................8
Suction and Discharge Piping........................9
Net Positive Suction Head ............................10
Seal Environmental Control System............11
Cryogenic Applications.................................11
Liquid Buffer System.....................................11
Electrical Installation & Grounding..............12
LUBRICATION ..................................13
Lubrication Specification..............................13
START UP .........................................14
Start-Up Procedures......................................14
Controlling the Pump During Startup..........15
Single Operation..........................................15
Parallel Operation........................................15
OPERATION & CONTROL................16
Operation of Sundyne Pumps......................16
Suction Conditions.......................................16
Minimum Flow Conditions ...........................16
Entrained Gases..........................................16
System Head Curve ....................................17
Parallel Operation........................................18
MAINTENANCE.................................19
Removal of Pump from Pipe Work...............19
Dismantling..................................................19
Moving the LMV-803Lr ..................................20

SA-07-11-87 Rev A ii January 2019
Moving (OH5 Configuration)........................20
Moving (OH3 Configuration)........................22
Disassembling the LMV-803Lr......................23
Disassembly (All Configurations).................24
Disassembly (Extended Shaft Motor)..........30
Disassembly (Bearing Box Configuration)...31
Diffuser (Removal).......................................32
Assembling the LMV-803Lr...........................33
Diffuser Assembly........................................33
Assembly (Extended Shaft Motor)...............34
Assembly (Bearing Box Configuration)........36
Assembly (All Configurations)......................38
Shimming........................................................44
Shimming.....................................................44
Spring Energized Seal Installation...............47
Diffuser and Pump Case .............................47
Shaft ............................................................47
Inducer.........................................................48
TROUBLESHOOTING.......................50
Pump Diagnostics..........................................50
SPECIFICATIONS.............................53
Parts List.........................................................54
Extended Shaft Motor Configuration...........56
Bearing Box Configuration...........................57
INDEX................................................58

Installation and Operation Manual
SA-07-11-87 Rev A 1 January 2019
INTRODUCTION
Sundyne Centrifugal Pumps
API 610 OH3 and OH5 Direct Drive Process
Pumps
Sundyne API 610, OH3 and OH5 direct drive
pumps are known for their high-head, low-flow
capabilities ideally suited for multiple
applications throughout the process industries.
Each pump in the series features a single-stage
centrifugal design with single, double or tandem
seal arrangements as well as select API 682
cartridge seal configurations for reliable service
in the most difficult applications.
Pump Designs Specifically for the Process
Industries
Each pump in the API 610, OH3 and OH5 direct
drive family is optimized for different flow rates
and head requirements that are demanded by
applications in a wide range of hydroprocessing
refining processes (upstream oil & gas),
midstream gas processes, chemical,
petrochemical, and general process industries.
The Sundyne LMV 803Lr is a direct drive
centrifugal pump with an API 682 compliant
cartridge seal in a standard OH3 API 610
configuration.
•The LMV 803Lr (Low NPSHr required)
cartridge seal is a self-contained unit
consisting of a shaft sleeve, seal and
gland plate that fits onto the pump shaft
as a single assembly. The cartridge
seal design eliminates many common
causes of seal failure and it helps
operators overcome the fitting and
installation problems associated with
conventional seals.
The compact and rugged API 682 cartridge
seal is designed specifically for the Sundyne
LMV 803, providing operators and
maintenance engineers with an economical
alternative to standard seal configurations, in
a convenient package that eliminates errors
in installation.
This manual presents installation, servicing,
troubleshooting, maintenance, and spare parts
information for the latest models of Sundyne
LMV 803Lr centrifugal pump. It is important that
the manual is read thoroughly before installing
and operating the pump. Images provided in
this manual are based on typical configurations.
Refer to the drawings provided with the order for
the actual configuration. Questions regarding
parts, service or operation should be directed to
your Authorized Service Center or a listed
Sundyne location.
Note: Parenthetical numbers included in the
text correspond to item numbers on the
illustrated figures. The item number
serves as a location identifier and not a
part number. The correct spare part
can be ordered referencing the item
and serial numbers. From there the
correct part number can be obtained.
Note: If the pump has a bearing box, the
instructions are in a separate manual.
The bearing box manual and the pump
manual are designed to be used
together.
While care is taken to ensure that the
information is correct, no liability can be
accepted by Sundyne with loss, damage or
injury caused by errors in or omission from the
information given.
Sundyne LLC RESERVES THE RIGHT TO
CHANGE THEIR RECOMMENDATIONS
WITHOUT PRIOR NOTICE OR
CONSULTATION.

Installation and Operation Manual
SA-07-11-87 Rev A 2 January 2019
Text Symbols
In accordance with general safety and handling,
OSHA 1910.145, BS EN 809 and other local
directives, the following warning symbols and
signs are used in this manual.
DANGER: Text accompanied by this
symbol indicates failure to avoid hazards
identified with this symbol will result in
death.
WARNING: Text accompanied by this
symbol indicates that failure to recognize
these hazards could result in injury or
even death.
ELECTRICAL HAZARD: Text
accompanied by this symbol indicates that
failure to follow directions could result in
electrical damage to equipment or
electrical shock.
RECOMMENDED: Text accompanied by
this symbol indicates recommended
usage.
REMINDER: Text accompanied by this
symbol indicates a reminder to perform an
action.
EQUIPMENT USE ALERT: Text
accompanied by this symbol indicates that
failure to follow directions could result in
damage to equipment.
RECOMMENDED TOOL: Text
accompanied by this symbol identifies the
tool required for the operation.

Installation and Operation Manual
SA-07-11-87 Rev A 3 January 2019
Equipment and Safety Precautions
Sundyne LLC manufactures centrifugal pumps
to exacting International Quality Management
System Standards (ISO 9001) as certified and
audited by Lloyd’s Register Quality Assurance
Limited. Genuine parts and accessories are
specifically designed and tested for use with
these products to ensure continued product
quality and performance. Sundyne cannot test
all parts and accessories sourced from other
vendors; incorrect design and/or fabrication of
such parts and accessories may adversely affect
the performance and safety features of these
products. Failure to properly select, install or use
authorized Sundyne pump parts and
accessories is considered misuse and damage
or failure caused by misuse is not covered by
Sundyne’s warranty. Additionally, modification
of Sundyne products or removal of original
components may impair the safety of these
products and their effective operation.
CHEMICAL HAZARD
Sundyne pumps may handle hazardous,
flammable, and/or toxic fluids. Proper personal
protective equipment should be worn.
Precautions must be taken to prevent physical
injury and compliance must be ensured with
COSHH, EPA or any applicable Health and
Safety legislation. Pumpage must be handled
and disposed of in accordance with applicable
environmental regulations.
Safety procedures must be applied
prior to any installation, maintenance,
or repair of a Sundyne pump. Failure to
follow safety precautions may lead to
injury!
All pumps returned to Sundyne or HMD
for servicing must have a
decontamination certificate and the
appropriate Health and Safety data
sheets.
Wearing Personal Protective Equipment
To ensure safety, protective equipment must be
worn at all times when installing, performing
maintenance, or repairing equipment. The
following safety recommendations must be
adhered to for optimum safety:
•Safety glasses with side shields that meet
ANSI Z87.1 standard for impact
resistance must be worn at all times.
•Protective footwear (steel-toe shoes)
meeting ASTM F2413-11 standard
specification for performance
requirement of protective footwear.
•Hearing protection is strongly
recommended at all times when noise
levels exceed 85 dB during an eight
(8.0) hour period.
Chemical resistant gloves must be used
if chemicals are utilized (refer to Using
Chemicals for additional information).
A dust mask respirator must be worn if
chemicals have warning labels
regarding fumes, dust, or mists.
When using more than one piece of protective
equipment, consider their compatibility. For
example, safety glasses will not interfere with
hearing protection equipment. Be sure to clean
all pieces of personal protective equipment
immediately after each use.
Refer to Section 8 of the chemical specific
Safety Data Sheet for any additional PPE
requirements.
Lifting
Attention must be given to the safe handling of all
items. This applies to both installation and
maintenance. Where pumps, pump units, or
components weigh in excess of 35 lbs (16Kg) it is
recommended that suitable lifting equipment
should be used in the correct manner to ensure
that personal injury or damage to pump
components does not occur. Note that lifting
eyes fitted to individual pieces such as pump and
motor are designed to lift only this part and not
the complete assembly
Using Forklifts
Any persons operating a forklift must have an
active recognized operator license.

Installation and Operation Manual
SA-07-11-87 Rev A 4 January 2019
Before initializing forklift operation,
verify that the lift is in a safe operating
position.
Ensuring Electrical Safety
All electrical sources must be powered-off before
installation, service, or repair of equipment
occurs.
Sundyne recommends that a Lock-
out/Tag-out program be followed prior
to altering the equipment. Locks or
tags must be provided to warn
employees that equipment is
temporarily unavailable.
Once all work has been completed, the person
installing the lock or tag must remove it
according to company procedure.
Testing Equipment
Prior to performing a test on newly installed,
maintained, or repaired equipment; all personnel
in the immediate area must be warned.
Follow company procedures prior to
equipment testing at all times.
Once all work has been completed, the person
installing the lock or tag must remove it
according to company procedure.
Using Chemicals
Any chemicals to be used must be accompanied
by a relevant safety data sheet (SDS), in
accordance with government legislation. If
applicable, use chemical proof gloves.
An eye wash station (or equivalent)
should be available in the event of
injury. If any hazardous or flammable
chemicals pass through the equipment,
a complete decontamination of the
equipment is required.
Protection from Falling
Fall protection and associated preventative
measures are required when working on
equipment located four feet or higher from the
ground.
Follow company fall prevention
procedures prior to working on
equipment.
Preventative Machine Guards
Preventative guards must remain in place on all
equipment.
Only remove the guards while
performing maintenance or repair.
Replace the guards immediately after working
on the equipment and prior to start up.
EXPLOSION/FIRE HAZARD
Never use an acetylene torch, open
flame, or heat to attempt to remove
parts that have seized together in
Sundyne equipment. Any residual
process gas or liquid that is flammable
can result in an explosion or fire with
potential for serious injury or death.

Installation and Operation Manual
SA-07-11-87 Rev A 5 January 2019
Pre-Commission Checklist
Familiarizing Yourself with the Pump
Before servicing and starting up the Sundyne
pump, carefully review all information on the
product, including:
•Specification sheets
•Outline drawings
•Performance curves
•Instruction and related manuals
•System P&ID/Process Flow Diagram
(Clients equipment)
•Control system and operational
philosophy/narrative (Client)
Familiarize yourself with the pump configuration
before starting and operating the pump.
Cartridge Seal Preparation
Remove or relocate (depending on seal
manufacturer) seal spacer/locking tabs as
described in the Assembly Section. If tabs are
the removable type, retain these for future
service.
Driver Instructions
Carefully follow all installation and starting
instructions provided by the driver manufacturer.
This information is included in the final data
package.
Verifying Auxiliaries
Before start up, verify that the following auxiliaries
are met:
•Check the utility connections
•Verify that the auxiliary piping conforms
to Sundyne standards, as indicated in
the detailed specifications
•Verify all switch and instrument
connections
•Verify that all switch and instrument
settings are set to normal operating
standards
•Calibrate all measurement equipment,
such as flow meters, ampere meters,
and pressure meters, etc.
Checking Driver Rotation
Verify that the direction of the driver rotates in the
same direction as the arrow stamped or cast on
the pump casing.
Do not run pump dry
Piping Connections
Verify that the following bolted or threaded
connections are tight:
•Pump flange bolts
•Is a check valve in the discharge line?
•Note: A start-up bypass line upstream of
the check valve is recommended
whenever feasible
Figure 1. Pump Rotation
Looking down
Rotation of the driver must be counter-clockwise.
View From Coupling
Vent Impeller and Driver
Shaft Rotation
Six Inch
Suction
Four Inch
Discharge

Installation and Operation Manual
SA-07-11-87 Rev A 6 January 2019
General
Application or Use
Each pump is designed for operation at the conditions stated on the pump label (Fig 2). Should the need
arise to operate the pump outside of the conditions indicated on the pump label, Sundyne should be
contacted to check and confirm that the pump can be operated safely at the revised operating conditions.
Start Up Checklist
Pressurizing the Fluid Loop
Pressurize the double seal buffer loop or external
seal flush, if applicable, prior to admitting fluid into
the pump casing.
Venting
Sundyne 803Lr pumps not equipped with a Plan
13 are required to vented the seal area prior to
start up. This can be accomplished with a valve
connected to either a flush or vent (depending
on seal type).
Setting the Valves
To set the pump to the designated operating
point, start the pump with the suction valve in the
open position while throttling the discharge valve.
Control Checklist
Verifying Operating Conditions
Verify the following parameters against the
specifications on the Specification sheet:
•Suction pressure
•Suction temperature
•Discharge pressure
•Total head
•Flow rate
•Power consumption
•Specific gravity
•Viscosity
•Net Positive Suction Head (NPSH)
The status of these conditions will significantly
alter performance of the pump if they are not in
accordance with the specification sheet.
Check with your Sundyne representative if the
operation conditions of your pump mustrun under
different parameters than indicated by the
specification sheet.
Figure 2. Pump Label

Installation and Operation Manual
SA-07-11-87 Rev A 7 January 2019
Installation and Start-Up Checklist
Note: Lock out all switch gears, including main driver, and instrumentation before working on this
equipment.
This checklist is NOT intended to be inclusive. You must read and follow: instruction manuals, outline
drawings, specification sheets and curves for this equipment during installation, commissioning, and
operation. Your total satisfaction is our goal. Please call with any questions or comments. Be sure to have
the unit serial number that is imprinted on the pump nameplate, and request “Sundyne Field Service”.
Is all the information underlined above readily available?
Are the following bolted/threaded connections tight?
•Pump flange bolts?
•Seal environment piping and port connections?
•Pump case drain plug?
Is a check valve installed in the discharge line?
Is Port 1 on the seal housing or the DRAIN on the cartridge seal open to atmosphere, or piped to
safety drain or flare vent header? (Back pressure must not exceed 5 psig).
Note: A drip leg must be used if the Port 1 connection rises from the seal housing.
Are all other seal system ports identified and connected according to the outline drawings?
Do process conditions, suction pressure, suction temperature, discharge header pressure, and
specific gravity agree with specification sheet information? DO NOT test the pump on water
unless it is designed for water. Check with your representative or Sundyne if you must test on a
different fluid than shown on the specification sheet.
Prior to starting the unit, have you opened the suction valve fully and discharge throttled to allow
design flow, typically 40-50% open? Check the control valve to be sure it is functional. Inspect the
case drain, ports, and flanges for leaks. Has the pump been vented through Port 6. Check suction
pressure to be sure it agrees with the specification sheet.
Unlock the main driver circuit and bump the motor. Rotation is Counter Clockwise, as viewed
from the top end of the motor. Is rotation correct? Once rotation is verified start the main driver.
After commissioning, bumping the motor is not required.
If pressure control is being used, throttle the discharge valve immediately after start-up. Does the
discharge pressure agree with the specification sheet? If flow control is being used, adjust the
valve until flow agrees with the design value listed on the specification sheet.
Listen for any unusual noises or pressure fluctuations.
Note: If you have any questions or concerns about these procedures or the information supplied, please
call your representative or Sundyne.

Installation and Operation Manual
SA-07-11-87 Rev A 8 January 2019
INSTALLATION
Inspection
Inspect the shipping container for any damage
sustained during shipment. If damage is found,
note the nature and extent before unpacking. A
photograph is helpful in any claims to be made
against the shipper; also, inform Sundyne or the
local authorized distributor. Check the nameplate
data against the shipping papers and against
your purchase order to ensure that the correct
pump is supplied.
After unpacking check to see that the suction and
discharge flanges are sealed. If the seals have
come loose, examine the pump to ensure no
packing material or dirt is in the casing. It may be
necessary to remove the pump casing to check.
Refer to the Dismantling Instructions if required.
Inspect the suction and discharge flanges to be
certain that they are free from scratches or nicks
and that they are clean. The gasket seating
surfaces in particular should be cleaned carefully.
Ensure that a copy of this manual is in the hands
of the installation personnel and that they have
read it thoroughly before proceeding further.
The input shaft on the pump may
naturally not turn freely due to seal
drag. However, if the input shaft is
difficult to turn or if rotation is not
smooth, damage may have occurred
during shipping.
Storing Your Pump Short-Term
If your Sundyne pump is not to be installed
immediately but within the next 6 months, protect
it from exposure to moisture and dust. The pump
should be left undisturbed in its transportation
packaging and stored in a dry area and not
subjected to vibration.
If removal from the packaging is necessary, the
pump should be stored covered in a clean, dry
area protected from physical damage and
vibration. All flanged and threaded connections
should remain capped.
Note: Observe the storage instructions
provided by the driver manufacturer.
Storing Your Pump Long-Term
In addition to the precautions in the short-term
section above, additional precautions are
required for long-term storage.
If your Sundyne pump will not be operated for a
period of time exceeding six months from the
date of shipment, long-term storage conditions
must be met to prevent corrosion damage to the
fluid-end components.
Note: Sundyne does not accept liability for
equipment damaged during the storage
period. Sundyne does not guarantee
the quality of equipment during and
after the storage period.
To ensure the original quality of the Sundyne
pump after storage, all components must be
inspected by an authorized Sundyne service
engineer. Components that are not
manufactured by Sundyne (except mechanical
seals) must be inspected by its own
manufacturer.
Note: Any inspection fees are the sole
responsibility of the purchaser.

Installation and Operation Manual
SA-07-11-87 Rev A 9 January 2019
Factors which affect the quality of a Sundyne
pump, when stored, are:
•Humidity
•Temperature
•Surrounding chemicals
Long-term storage methods must prevent
damaging conditions from making contact with
the internal components of the equipment. When
the equipment is stored in strong chemical
environments or near salt water, protection must
occur immediately upon receipt of the
equipment.
Recommended Long-Term Storage
Procedures
Sundyne recommends that you do the following
to prevent damage to your pump during long-
term storage:
1. Store your pump only in an indoor, climate
controlled building. These conditions will
maintain constant temperature and humidity.
2. Perform inert gas purging of component
internals.
3. Use desiccant bags.
Note: Because long-term storage of
equipment is of a highly critical nature,
it is recommended that Sundyne be
contacted to provide more details on
the above procedures.
Suction and Discharge Piping
It is recommended to adhere to the following
best practices for installing and maintaining
suction and discharge piping:
1. Install a suction strainer (12 mesh - .062" or
1.6mm opening) initially and clean the
suction line prior to starting the pump. This
procedure will protect the impeller from
damage by mill scale, welding slag, or other
foreign particles during initial startup. After
about three months, a permanent ¼” mesh
strainer is installed.
Note: Sundyne recommends installation of a
differential pressure instrument across
strainer to indicate strainer condition.
2. When installing piping to the pump, ensure
that all piping is supported independently
from the pump.
3. All piping must always line up with the pump
flanges.
Note: Never use force to position piping into
place at the flanged suction and
discharge connection locations. Failure
to have piping properly aligned may
impose excessive strains on the unit.
4. Sundyne recommends using a straight pipe
assembly of at least ten times the length of
the pipe diameter for suction and at least
five times the diameter for discharge.
Note: Carefully select the size of pipe and
fittings to be installed so that friction
losses will remain low.
5. Never use a suction pipe that is smaller in
diameter than the pump suction inlet.
6. Sundyne recommends installation of a
discharge check valve to prevent reverse
rotation.
7. Use block valves (both suction and
discharge) when isolating the pump during
shutdown. This practice will minimize
process leakage and prevent possible
reverse rotation from pump back-flow.
8. It is recommended that suction and
discharge pressure gauges be installed on
any pump that is not flow controlled. If no
flow measuring device is installed, there is
no way to determine accurately where on its
curve the pump is operating.

Installation and Operation Manual
SA-07-11-87 Rev A 10 January 2019
Net Positive Suction Head
Liquids cannot be towed or dragged down a pipe,
they can only be pushed along a pipe. The push
the liquid needs to flow into the pump can only be
supplied by some external energy source. This
source can be the absolute pressure on the
surface of the liquid in the vessel and the head of
the liquid over the center line of the pump.
A system that has insufficient NPSH available will
cause the pump to cavitate. The general effects
of cavitation are noise, erosion of metal surfaces
and vibration of the system. The latter situation
will result in the magnetic coupling overheating
and the product-lubricated bearings will wear
rapidly. Cavitation starts when the pressure at the
pump suction falls near to the value of the vapor
pressure of the pump liquid and this varies with
temperature.
At the time the pump is selected, the NPSH
available will have been calculated as per the
following method: -
NSPH available = Ps-Vp+Hs+Vs-Hf
Where:
Ps = Absolute pressure in suction vessel
Vp = Vapour pressure of liquid
Hs = Total static head
Hf = Friction losses in suction line
Vs = Velocity Head = G
V
2
2A seal
Figure 4. NPSH Definition
In the equation listed, all parameters must be
converted to meters head of liquid before the
liquid calculation is carried out. The pump should
be selected so that the NPSH available is a
minimum of 0.5m (1.6 ft) greater than the NPSH
required by the pump.
No subsequent alteration should be made to the
pipework system without considering the effect
that it will have on the NPSH available.
Figure 3. Suction Piping

Installation and Operation Manual
SA-07-11-87, Rev A 11 January 2019
Seal Environmental Control System
A seal environmental control system may be
required depending upon the pump seal
arrangement and application.
Always maintain the pump seal environment as
detailed on the specification sheet that
accompanies each unit.
Note: For most applications, a standard
control system can be obtained from
the factory.
Ensure that the specified seal environmental
control system is properly installed and that the
ports are open (or plugged) as indicated in the
final data package.
Note: Seal Drain (“D”) must always be open
so that it is free to drain.
Depending on the seal plan, the seal ports will be marked accordingly with an engraved reference. Port
Designations are as follows:
D-Drain Q-Quench
V-Vent BI-Buffer In
FI-Flush In BO-Buffer Out
FO-Flush Out
Connections are made in accordance to the specified seal plan and Port Location follows Table 2 in API
682.
Note: Port nomenclature may vary from API designations and seal manufacturers. Refer to the unit
seal drawing for connection designation.
Cryogenic Applications
The 803Lr, when configured for cold services,
can operate with process temperatures to -200
°F (-123°C). These applications require the use
of a bearing box and heat trace around the
cartridge seal. Heat trace is necessary to
prevent ice buildup on the seal and impacting
the seal gland and rotating collar. The amount
of trace required is just enough energy to keep
the seal above freezing while not warming any
of the process. The control for the heat trace
system can be mounted to the unit with a
bracket or off the unit in a convenient location.
.
Liquid Buffer System
For double liquid seals and tandem liquid seals,
a liquid buffer system is used. Introduce the
buffer liquid into port 7 on a mechanical seal or
BI on a cartridge seal, which will flow through
the seal cavity, and out from port 2 or BO.
Buffer flow should be 0.5 to 3 gpm (2 to 12
liters/min) with an inlet temperature of 60oto
120oF (16oto 49oC), and inlet pressure as
indicated on the pump specification sheet. The
liquid must be clean to 5µmicrons.

Installation and Operation Manual
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Electrical Installation & Grounding
Electrical connection of the pump motor, to a suitably rated power supply shall be carried out by electrically
skilled persons or staff. Care should be taken to ensure that the motor electrical connection will not
overload the power supply. Provision shall be made to enable electrical isolation of the equipment.
Figure 5. Grounding Location
If the unit is not attached to a sole plate or base, grounding is recommended from the base of the pump
case through the provided 5/8-11 UNC threaded hole and wired to ground with a suitable grounding cable
by electrically skilled persons or staff.
Note: Motor may be daisy chained to pump case and then to ground.
Grounding
Hole

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LUBRICATION
Lubrication Specification
With OH5 configurations, refer to the driver’s instruction for lubrication requirements. In units outfitted
with a bearing box (OH3), refer to the Bearing Box IOM for information.

Installation and Operation Manual
SA-07-11-87, Rev A 14 January 2019
START UP
Start-Up Procedures
Perform the following tasks to start the Sundyne
pump.
1. Run-in of pump: If the pump is to be run
under conditions which are considerably
different from those conditions listed on the
spec sheet (such as a change in specific
gravity, suction pressure, flow rate, etc.) the
factory should be consulted to ensure that
the run-in conditions are compatible with the
pump.
2. Check to ensure that the driver has been
serviced per the instructions provided by the
driver manufacturer.
3. Auxiliaries - Check utility connections; verify
that auxiliary piping is per Sundyne
drawings; verify switch and instrument
connections and set points; calibrate flow
instruments and other transmitters.
4. Flushing screens should be installed in all
field assembled piping connections.
5. Check the pump specification sheet and
outline drawings for seal environment
requirements. Be sure that the seal housing
port piping is properly connected. If double
seals are used, buffer fluid must be
pressurized before suction pressure is
applied to the pump. Seal Drain must be
open to atmosphere. Maximum allowable
backpressure is 5 psig (0.35 kg/cm²). If no
seal flush is used, it is recommended that a
hand bleed valve be installed at this
location.
6. Bleed air and vapor from seal before
starting.
7. Jogging is used to verify proper direction of
rotation for the main driver to the markings
on the pump case.
Note: Never start the pump against a closed
discharge valve. Always check to
ensure that the discharge valve is
partially open.

Installation and Operation Manual
SA-07-11-87, Rev A 15 January 2019
Controlling the Pump During Startup
To ensure control of the pump during start up,
follow the start-up procedures for your desired
configuration.
Single Operation
Start the pump with the suction valve open while
throttling the discharge valve. This will ensure
that the pump will reach the design flow
operating point.
If the process fluid is near its vapor pressure,
open the supply vessel seal cavity vent so that
the pump can fill with liquid.
Parallel Operation
To prevent back-flow, place check valves in the
discharge piping of each pump.
Note: Sundyne recommends installing
separate bypass loops around each
pump for additional operational
flexibility.
1. Start the first unit as described in the
Single Operation instructions.
2. Start the second unit with the bypass
orifice/valve set to maintain the flow
above minimum flow.
3. Open the discharge valve on the second
unit so that the design flow of both units
is maintained.
Note: Do not operate the pumps at their peak
head capability.
Sundyne recommends that separate flow
controls be used on each pump to provide a
lower minimum flow range than is achieved by
pressure control.
Figure 6. Bypass System Example for Parallel Pump Operation
BYPASS
ORIFICES
FROM
SUPPLY
TO
SUPPLY
THROTTLE
CONTROL
VALVE
TRIM
VALVES CHECK
VALVES
(Or BYPASS
VALVES)