to the product's operating location or directly with
the product.
Flowserve productsare designed,developed and
manufactured with state-of-the-art technologies in
modern facilities. The unit isproduced with greatcare
and commitment to continuous quality control, utilizing
sophisticated quality techniques, and safety
requirements.
Flowserve iscommitted to continuous quality
improvement and being atservice for any further
information about the product in its installation and
operation or aboutits support products, repair and
diagnostic services.
These instructions are intended to facilitate
familiarization with the product and its permitted use.
Operating the product in compliance with these
instructionsis importantto help ensure reliability in
service and avoid risks. The instructions maynot take
intoaccount local regulations; ensure such regulations
are observed byall, including those installing the
product.Always coordinate repair activity with
operations personnel, and followall plant safety
requirementsand applicable safetyand healthlaws
and regulations.
These instructions must be readprior to
installing, operating, using andmaintaining the
equipment in any region worldwide. The
equipment must not be put into service until all the
conditions relating to safety noted in the
instructions, have beenmet.
1.2 CEmarking and approvals
It isa legal requirement that machinery and equipment
put into service within certain regions of the world shall
conform with the applicable CE Marking Directives
covering Machinery and, whereapplicable, Low
Voltage Equipment, Electromagnetic Compatibility
(EMC), Pressure Equipment Directive (PED) and
Equipment for Potentially Explosive Atmospheres
(ATEX).
To confirm the Approvalsapplying andif the productis
CEmarked, check the serial numberplate markings and
the Certification.(See section9, Certification.)
1.3 Disclaimer
Information in these User Instructions is believed to
be reliable. In spite of all theefforts of Flowserve
Pump Divisionto provide sound andall necessary
information the content ofthis manual may appear
insufficientand is notguaranteed by Flowserve as to
its completeness or accuracy.
Flowservemanufacturesproductstoexacting
International QualityManagement System Standards as
certifiedandaudited byexternal Quality Assurance
organizations. Genuine parts andaccessorieshave been
designed, testedandincorporatedinto theproducts to
helpensuretheircontinuedproduct quality and
performancein use.AsFlowserve cannottest parts and
accessories sourced from other vendorstheincorrect
incorporation of such partsand accessoriesmay
adversely affect the performanceand safety features of
theproducts. The failure to properly select,install oruse
authorized Flowserve parts andaccessoriesis
considered to bemisuse. Damageor failure caused by
misuse is notcoveredby the Flowserve warranty. In
addition, any modification of Flowserveproducts or
removal of original components mayimpair the safetyof
these productsin theiruse.
1.4 Copyright
All rightsreserved. No part of these instructionsmay
be reproduced, stored in a retrieval system or
transmittedin any form or byany meanswithout prior
permission of Flowserve Pump Division.
1.5 Duty conditions
This product has been selected to meet the
specifications of your purchaser order. The
acknowledgement of these conditionshas been sent
separately to the Purchaser. Acopy should be kept
with these instructions.
The product must not be operated beyond
the parameters specified for theapplication. If
there is any doubt as to the suitability of the
product for the application intended, contact
Flowserve for advice, quoting the serial number.
Where applicablethe Directivesand any additional
Approvals coverimportant safety aspects relating to
machineryand equipment andthe satisfactoryprovision
of technical documentsand safetyinstructions. Where
applicablethisdocument incorporatesinformation
relevant to these Directivesand Approvals.
Page 4 of 46
If the conditions of service on your purchase order are
going to be changed (for example liquid pumped,
temperature or duty) itis requested that the user seeks
the written agreementof Flowserve before start up.
WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
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1.6 Safety
1.6.1 Summary of safetymarkings
These User Instructionscontain specificsafetymarkings
where non-observance of aninstruction would cause
hazards.The specific safetymarkings are:
This symbol indicateselectrical safety
instructionswhere non-compliance will involve a high
risk to personal safety orthe lossof life.
This symbol indicatessafety instructions where
non-compliance would affect personal safety and could
result in lossof life.
This symbol indicates “hazardous substances and
toxic fluid” safety instructions where non-compliance
would affect personal safetyand could result in lossof
life.
This symbol indicatessafety instructions
where non-compliance will involve some riskto safe
operation and personal safetyand woulddamage the
equipment orproperty.
1.6.3 Safety action
This is a summary of conditionsand actions to
prevent injury to personnel and damage to the
environment and to equipment. For products used
in potentially explosive atmospheres section1.6.4
also applies.
NEVER DOMAINTENANCE WORK
WHEN THE UNIT IS CONNECTEDTO POWER
GUARDS MUST NOT BE REMOVED WHILE
THE PUMP IS OPERATIONAL
DRAIN THE PUMP AND ISOLATE PIPEWORK
BEFORE DISMANTLINGTHE PUMP
The appropriate safety precautions should be taken
where the pumped liquids are hazardous.
FLUORO-ELASTOMERS (When fitted.)
When a pump has experienced temperaturesover 250
ºC (482 ºF), partial decomposition offluoro-elastomers
(example: Viton) will occur. In this condition these are
extremely dangerousand skin contact must be
avoided.
This symbol indicatesexplosive atmosphere
zone marking according to ATEX. Itisused in safety
instructionswhere non-compliance in the hazardous
area would cause the riskof an explosion.
This symbol is used in safety instructions to
remind not to rub non-metallic surfaceswith a dry
cloth; ensure cloth is damp.It isused where non-
compliance in the hazardousarea would cause the risk
of an explosion.
This signis not a safety symbol butindicates
animportant instruction inthe assembly process.
1.6.2 Personnel qualification and training
All personnel involvedin the operation, installation,
inspection and maintenance ofthe unit must be
qualified to carry out the work involved. If the
personnel in questiondo not already possessthe
necessary knowledge and skill, appropriate training
and instruction must be provided. If required the
operatormay commission themanufacturer/supplier to
provide applicable training.
Always coordinate repair activity with operationsand
health and safety personnel,and follow all plant safety
requirementsand applicable safetyand healthlaws
and regulations.
HANDLING COMPONENTS
Many precision partshave sharp corners and the
wearing ofappropriate safetygloves and equipmentis
required when handling these components. To lift
heavy piecesabove 25 kg (55 lb) use a crane
appropriate for the massand in accordance with
current local regulations.
THERMAL SHOCK
Rapid changes in the temperature of theliquid within
the pump can cause thermal shock, which can result in
damageor breakage of componentsand should be
avoided.
NEVERAPPLY HEAT TO REMOVE IMPELLER
Trappedlubricant or vapourcould cause an explosion.
HOT (and cold) PARTS
If hot orfreezing componentsor auxiliary heating
supplies can present a danger to operatorsand
persons entering the immediate area actionmust be
taken to avoid accidental contact. If complete
protection is notpossible, the machine accessmust be
limited to maintenance staff only,with clear visual
warningsandindicatorsto those entering the
immediate area.Note: bearing housingsmust not be
insulated and drive motors and bearings maybe hot.
If the temperature is greater than 68 °C (175 °F) or
below 5 °C (20 °F) in a restricted zone, or exceeds
local regulations, action as above shall be taken.
Page 5 of 46
WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
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HAZARDOUS LIQUIDS
Whenthe pump ishandling hazardousliquidscare must
be taken to avoid exposure to the liquid by appropriate
sitting ofthe pump,limiting personnel accessand by
operatortraining. If theliquid isflammable and/or
explosive, strict safety proceduresmust be applied.
Gland packing must not be used when pumping
hazardous liquids.
PREVENT EXCESSIVE EXTERNAL
PIPE LOAD
Do not use pump asa support for piping. Do not mount
expansion joints, unlessallowed by Flowservein
writing, so that their force, due tointernal pressure,
acts on the pump flange.
ENSURE CORRECT LUBRICATION
(See section 5, Commissioning, startup, operation andshutdown.)
START THE PUMPWITHOUTLET
VALVE PART OPENED
(Unless otherwiseinstructed at a specific point in the
User Instructions.)
This is recommended to minimize the riskof
overloading and damaging the pump motor at full or
zero flow. Pumpsmay be started with the valve further
open only oninstallations where this situation cannot
occur. Pumpoutlet valve shall may need to be
adjusted to comply with the duty following the run-up
process. (See section 5, Commissioning start-up,
operation and shutdown.)
NEVER RUNTHE PUMP DRY
1.6.4 Products used in potentially explosive
atmospheres
Measures are required to:
Avoid excess temperature.
Prevent build up of explosive mixtures.
Prevent thegeneration of sparks.
Preventleakages.
Maintain the pump to avoid hazard.
The following instructions forpumpsandpump units
wheninstalledinpotentially explosive atmospheres
must be followed tohelp ensure explosion protection.
Both electrical andnon-electrical equipment mustmeet
This product has been selected to meet the
specifications of your purchase order.See the
nameplate and section 1.5.
Themaximumallowable speed forcast iron
impellersis3600RPMand for steel impellersis4000
RPM.
3.5.1Minimal flow
20 % of BEP up to 280° F (140 °C)
25 % of BEP between 280 °F (140 °C) and 410 °F
(210 °C)
3.5.2 Clearance data
Nominal
Interstage
clearance
min/max
mm(inch)
0.170/0.259
(0.0067/0.0102)
0.170/0.259
(0.0067/0.0102)
0.170/0.259
(0.0067/0.0102)
0.170/0.259
(0.0067/0.0102)
0.200/0.303
(0.0079/0.0119)
0.200/0.303
(0.0079/0.0119)
0.200/0.303
(0.0079/0.0119)
0.200/0.303
(0.0079/0.0119)
Size
Mat
M2M30.170/0.259
1.5
M4 toM70.320/0.409
1.5
M2M30.170/0.259
2
M4 toM70.330/0.419
2
M2M30.200/0.303
3
M4 toM70.360/0.463
3
M2M30.200/0.303
4
M4 toM70.410/0.513
4
Nominalwear
ringclearance
min/max
mm(inch)
(0.0067/0.0102)
(0.0126/0.0161)
(0.0067/0.0102)
(0.0130/0.0165)
(0.0079/0.0119)
(0.0142/0.0182)
(0.0079/0.0119)
(0.0161/0.0202)
3.5.3 Sleeve bearing clearance (WDXE/S)
Pump size
1.5 WDX
2WDX
3WDX
4WDX
Diametral clearance
min/max
mm(inch)
0.007 - 0.041
(0.0003- 0.0016)
0.007 - 0.041
(0.0003- 0.0016)
0.007 - 0.041
(0.0003- 0.0016)
0.007 - 0.041
(0.0003- 0.0016)
3.5.4 Bearing bushings
Interstage bearing bushings can bemounted on the
pump. Their numberand location depend on the
material chosen and the number of stagesof the
pump. For furtherinformation, see general
arrangement drawing ofthepump.
Nominal
Balancedrum
clearance
min/max
mm(inch)
0.150/0.226
(0.0059/0.0089)
0.300/0.376
(0.0118/0.0148)
0.170/0.259
(0.0067/0.0102)
0.470/0.559
(0.0185/0.0220)
0.170/0.259
(0.0067/0.0102)
0.480/0.569
(0.0189/0.0224)
0.180/0.269
(0.0071/0.0106)
0.500/0.603
(0.0197/0.0237)
Page 14 of 46
3.6 Coverage charts
3.3.1 2970 min-1(50 Hz): coverage charts (Q, H)
3.3.2 3550 min-1(60 Hz): coverage charts (Q, H)
WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
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4 INSTALLATION
Equipment operated in hazardous locations
must comply with the relevant explosion protection
regulations. See section 1.6.4, Products usedin
potentially explosive atmospheres.
All equipment must be grounded.
4.1 Location
The pump should be located to allow room for
access, ventilation, maintenance and inspection with
ample headroom forlifting and should beasclose as
practicable to the supplyof liquid to bepumped.
The pump should be located above the floodlevel.
The pipework should be such that thereis an
adequate NPSH at the pump centreline.The
foundation should provide enough support so that the
pump is not supported by the pipework.
Refer to the general arrangementdrawing for the
pump set.
4.2 Cleaning prior to installation
Remove glue and dirt from suction and discharge
flanges. Check motors to make sure no foreign
objects haveentered through fan and cooling
openings. Remove any compounds on exposed
areasof pump shaft. Cleanpump and motor
nameplate.
A unit mounted on steel workor structural members
should bemounted over oradjacent to girdersor
wallsso that no misalignment will occur from yielding
or sagging of the structure.
Anchor boltsmust be in accordance with the foot bolt
holes. Use anchor bolts of accepted standards and
sufficient to ensure seave fitting in the foundation.
Particularly, thisapplies to individual plateswhere the
anchor boltshave to withstand the driving torque.
Provide sufficient space in the foundation to
accommodate the anchorbolts. Ifnecessary, provide
concrete risers.
4.3.2 Positioning on foundation
Pumpsare generallyshipped mounted, andit is
usuallyunnecessary with unitsof moderate size to
remove the pump or driver from its baseplate when
levelling.
Ensure the following are met:
a) Clean the foundation thoroughly.
b) The baseplate should be mounted onto a firm
foundation, either an appropriate thicknessof
quality concrete or sturdy steel framework
capable of absorbing all normal vibrations. (It
should NOT be distorted or pulled down onto the
surface of the foundation, butshould be
supported to maintain the original alignment).
c) Install the baseplate onto packing pieces evenly
spaced and adjacent to foundation bolts.
4.3 Foundation
Therearemanymethodsof installing
pump units to their foundations. The correct method
dependson the size of the pump unit, itslocation and
noise vibrationlimitations. Non-compliance with the
provision of correct foundation and installationmay
lead to failure of the pump and, assuch, would be
outside the terms of the warranty.
4.3.1 General recommendations
Foundation bolts should belocated or embedded in
the concrete by lay-out ortemplate in relation to the
suction and discharge piping. Foundation bolts of the
specified size maybe enclosed in a pipe sleeve two
or three diameterslarger than the boltsto
compensate forminor variationin alignment.
Standard accessory steel baseplates furnished with
these pumps and motors10 HP (7.5 kW) and under
may be bolted to machine or equipment structures,
either rigidly or,if flexible piping is used, with properly
designed vibration isolators.
d) Level with shims, about 25 mm (1”), between
baseplate and packing pieces.
e) Checkthe horizontal position by meansof a
precision level placed upon an adequate
reference (discharge flange, machined surfaces
of casings etc...).Tolerances within 0.5 mm per
m (0.006in per ft).
f)The pumpanddriver havebeenaligned before
dispatchhowever thealignmentofpump and motor
half couplingmustbe checked. Ifthisisincorrect,it
indicates that the baseplate hasbecome twisted
and should be corrected by re-shimming.
Page 16 of 46
WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
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barriers
g) If anchorboltshave been embeddedin the
foundation, slightly tighten the anchor bolts.
Otherwise let them hang in the foundation holes.
h) If not supplied, guarding shall be fitted as necessary
to meet the requirementsofEN292and EN953 and
orany applicable local safety regulations.
4.4 Grouting
Where applicable, groutin the foundation bolts.
Grouting provides solid contact between the pump
unit and foundation prevents lateral movement of
running equipment and dampens resonant vibrations.
Prepare the site forgrouting.Beforegrouting clean
the foundation surface thoroughly. Provide external
barriers asshown:
4.5.1 Thermal expansion
The pump and motor will normally
have to be aligned at ambient temperatureand
should be corrected to allow for thermal expansion at
operating temperature. In pump installationsinvolving
high liquid temperatures, the unit should be run atthe
actual operating temperature, shut down and the
alignment checked immediately.
4.5.2 Alignment methods
Ensure pump and driver areisolated
electrically and the half couplings are disconnected.
Ensure that the pump pipework, suction and
discharge,is disconnected.
The alignment MUST be checked.
Although the pump will havebeen aligned at the
factoryit is most likely that this alignment will have
been disturbed during transportation or handling. If
necessary, align themotor to the pump, not the pump
to the motor.
Prepare grouting product (concrete, resin) in
accordance withmanufacturers' instructions.
(Use anti-shrink products)
To grout up to the required level. Polish surfaces.
Take necessary precautions to avoid air bubbles.
Lay-down the barrier, break external angles and
polish the different surfaces.
Foundation bolts should only be fully tightened when
the grout hascured.
4.5 Initial alignment
Pump-Driver unit supplied assembled on their
baseplate:
Themachines have originally been aligned in the
work-shop.
Pump and Driver supplied on separate baseplates:
Themachines have originally been mounted on their
respective baseplate in the workshop. The pumpis to
be installed first and should be considered as the
fixedpoint.The alignment is then performedon the
driveralone.
Before aligning verify that the pump is horizontal by
using a flange surface or otherhorizontal surface.
Adjust if necessary by adjusting the height of the
wobble foot. Tighten any nuts that have been
loosened.
Alignmentisachieved by adding or removing shims
under themotor feet and also moving the motor
horizontally as required. In some cases where the
alignment cannot be achieved it will be necessary to
move the pump before recommencing the above
procedure.
Before connecting the couplings verify
the motor rotation direction.
For couplings with narrow flangesuse a dial indicator
as shown below to check both parallel and angular
alignment.
Page 17 of 46
WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
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Parallel
Angular
Maximum permissible misalignment at working
temperature:
Parallel 0.2 mm (0.008 in.)TIR
Angular 0.1 mm (0.004 in.) TIR
When checking parallel alignment, the total indicator
read-out (TIR) shown is twice the value of the actual
shaft displacement.
Alignin thevertical plane first, then horizontally by
movingmotor.When performing final alignment,check
for soft-foot under the driver. A TIR indicatorplacedon
the coupling, readingin the vertical direction, should not
indicate more than 0.05mm (0.002 in.)movement when
anydriverfoot fastenerisloosened.
Whilethe pumpiscapable of operating with the
maximum misalignment shownabove, maximum pump
reliabilityis obtained by nearperfect alignment of 0.05
to 0.10 mm (0.002 to0.004in.)TIRparallel and
0.05mm (0.002in.)per100mm (4in.) of coupling
flange diameter asTIR angular misalignment.This
coversthefull series of couplings available.
Pumpswith thick flanged non-spacer couplings can
be alignedby using a straight-edge across the
outsidediametersof the coupling hubsand
measuring the gap between the machined faces
using feeler gauges, measuring wedge or calipers.
When the electric motor has sleeve bearings it is
necessary to ensure that themotor isaligned to run
on its magnetic centreline.
Refer to themotor manual for details.
A button (screwed into one of the shaft ends)is
normally fitted between the motorand pump shaft
ends to fix the axial position.
If the motor does not run in its
magneticcentre the resultantadditional axial force
may overload the pump thrust bearing.
Complete piping asbelow and see sections4.7,
Final shaft alignment check up to and including
section 5, Commissioning, startup, operation and
shutdown before connecting driver and checking
actual rotation.
4.6 Piping
The user must verify that the equipment is
isolated from any external sources of vibration.
Protective coversare fitted to the pipe
connectionsto prevent foreign bodies entering during
transportation andinstallation. Ensure that these
coversare removed from the pump before connecting
anypipes.
4.6.1 Suction and discharge pipework
In order to minimize friction losses and hydraulic
noise in the pipeworkit is good practice to choose
pipeworkthatisone or two sizes larger than the
pump suction and discharge.Typicallymain pipework
velocitiesshould not exceed 2 m/s (6 ft/sec) suction
and 3 m/s (9 ft/sec) on the discharge.
Takeinto account the available NPSH must be higher
than the required NPSH of the pump. When
determining the NPSH available the vapour pressure
at the operating temperature must be taken into
account.
Never use the pump as a support for
piping.
Maximum forces and moments allowed on the pump
flangesvary with the pump size and type.To
minimize these forcesandmoments thatmay,if
excessive, cause misalignment, hot bearings, worn
couplings, vibration and the possible failure of the
pump casing, the following points should be strictly
followed:
Prevent excessive external pipe load
Never drawpiping into place by applying forceto
pump flange connections.
Do not mount expansionjoints so that their force,
due to internal pressure, acts on the pump flange.
It isrecommended that expansion jointsuse
threaded rod to limit any forcesof thistype.
Thermal expansions must be compensatedin
such a way that no additional forces act on the
pump flanges.
Make sure that piping flanges are square and
concentric to the pump flanges.
Page 18 of 46
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The table in 4.6.3 summarizes the maximum forces
and moments allowed on WDX pump casings. Refer
to Flowserve forother configurations.
Ensure piping and fittings are flushed
before use.
Ensure piping for hazardous liquids is arranged
to allow pump flushing before removal ofthe pump.
Excessive external strains(forces, moments)
may causemisalignment, general vibrations, hot
bearingsor excessive wear on couplingsand seals.
In extreme cases, leakage may result with potential
lossof life with hot or corrosive liquids.
4.6.2 Suction piping
Refer to the diagrams below for typical designs of
suction piping for both flooded suction and suction lift.
a) Theinlet pipe should be one or two sizes larger
than the pump inlet boreand pipe bends should
be as large a radius aspossible.
b) Pipeworkreducers should be conical and have a
maximum total angle of divergenceof 15 degrees.
c) Pipeworkshould be arranged to avoidair pockets.
d) If high pointscannot beavoided on the suctionline
equip them with air relief cocks.
e) On suction lift the piping should be inclined up
towardsthe pumpinlet with eccentric reducers
incorporated to prevent air locks.
f)On positive suction, the inlet piping must have a
constant fall towards the pump.
g) Flow should enterthe pump suction with uniform
flow, to minimize noise and wear. Thisis
particularly important on large or high-speed
pumpswhich should have a minimum of five
diameters of straight pipe on the pump suction
between the elbow and inlet flange. See section
10.3, Reference 1, for more detail.
h) Inlet strainers, when used, should have a net `free
area' of at least three times the inlet pipe area.
i)Do notinstall elbowsat an angle other than
perpendicular to the shaft axis. Elbowsparallel to
the shaft axis will cause uneven flow.
j)Except in unusual circumstancesstrainersare
not recommended in inlet piping. If considerable
foreign matter is expected a screen installed at
the entrance to the wet well is preferable.
k)Fitting anisolation valve will allow easier
maintenance.
l)If an inlet valve is necessary, choose a model
with full bore so as to limitlosses. Valve stem
should bein a vertical position. There should be
a minimum of five pipe diametersbetween the
pump and the valve.
m) Never throttle pump on suction side and never
place a valve directly on the pump inlet nozzle.
n) Do not tighten flanges before the final check.
Typical design –flooded suction
Note:
Ideallyreducers should be limited toone pipediameter change,
ie 150 mm (6 in.) to 200 mm (8 in.). Must have a maximumtotal
angleof divergence of15 degrees.
Typical design –suction lift
Notes:
1. S = Minimum submergence >3E.
2. Ideallyreducers to be limitedto one pipediameter change,
ie 150 mm (6 in.) to 200 mm (8 in.). Must have a maximumtotal
angleof divergence of 15 degrees.
Page 19 of 46
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4.6.3Maximum forces and momentsallowed on WDX pump flanges
Direction of forces
Fx = horizontal parallel to pump axis
Fy = horizontal perpendicular to pump axis
Fz = vertical perpendicular to pump axis
Direction of moments
Mx = around a horizontal axis parallel to pump axis
My = around a horizontal axis nozzle axis
Mz = around a horizontal axis perpendicular to pump axis
1) F = External force (tension or compression).
M = External moment, clockwise or counter-clockwise.
2) Forces and moments may be appliedsimultaneously inany
direction.
3) Values apply to all materials.
4) Higher loads maybe applicable, if direction and magnitude of
individual loads are known, but these need written approval
fromFlowserve PumpDivision.
5) Pumps must be onrigidfoundations andbaseplates must be
fullygrouted.
6) Pump/baseplate should not be used as pipe anchor. Suction
and dischargepiping should beanchored asclose as possible
tothe pump flanges toreduce vibration and prevent strainon
the pump casing. Expansion joints are recommended. They
must be properlytied andlocated on thesideof the pipe anchor
awayfromthe pump
7) The pump mounting bolt torquesspecifiedmust be usedto
prevent relative movement betweenthe pump casing and
baseplate.(Seesection 6.6, Fastener torques.). The bolt
materialmust havea minimum yieldstrength of 600N/mm
(87000lb/in.2).
2
Page 20 of 46
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4.6.4 Discharge piping
See section 4.6.2 for typical pipeworkdesign.
A non-return valve should belocated in the discharge
pipeworkto protect the pump from excessive back
pressure and hence reverse rotation when the unit is
stopped.
Pipeworkreducers should have a maximum total
angle of divergence of 9 degrees.
Fitting anisolation valve will alloweasiermaintenance.
It should be installed downstream of thenon-return
valve.
If needed a control pressure gaugemay be installed
on the pipework.
Do not tighten the pipe flanges before the final check.
4.6.5 Auxiliary piping
4.6.5.1 Drains
Pipe pump casing drains and glandleakage to a
convenient disposal point.
4.6.5.2 Pumps fitted with mechanical seals
Single seals requiring re-circulation will normally be
provided with the auxiliarypiping from pump casing
already fitted.
If the seal requires an auxiliary quench then a
connectionmust be made to a suitable source of
liquid flow,lowpressure steam or static pressure from
a header tank. Recommended pressure is0.35 bar (5
psi) or less. Check General arrangement drawing.
Special seals may requiredifferent auxiliary piping to
that described above. Consult separate User
Instructionsand or Flowserve if unsure of correct
method orarrangement.
For pumping hot liquids, to avoid seal damage,it is
recommended that any external flush/cooling supply
be continued after stopping the pump.
4.6.6 Final checks
Check the tightnessof all bolts in the suction and
discharge pipework. Tightenif necessary. Check also
the tightnessof all foundation bolts. Tighten if
necessary. Checkthe tightness of all auxiliary piping.
Tightenif necessary.
4.7 Final shaft alignment check
After connecting piping to the pump, rotate the shaft
several times by hand to ensure there is no binding
and all partsare free.
Recheck the coupling alignment, aspreviously
described, to ensure no pipe strain. If pipe strain
exists, correct piping.
Alignment can only be considered definitive after
pipeworkhas been connected.
4.8 Electrical connections
4.8.1 Safety conditions about electrical
connections
Electrical connectionsmust be made
by a qualified Electrician in accordance with relevant
local national and international regulations.This
includes any grounding.
It is important to be aware of the EUROPEAN
DIRECTIVE on potentially explosive areaswhere
compliance with IEC60079-14 is an additional
requirement for making electrical connections.
Avoid mechanical, hydraulic or electrical
overload byusing motor overload tripsor a power
monitor and make routine vibration monitoring.
Itis important tobe aware of the EUROPEAN
DIRECTIVEon electromagneticcompatibility when
wiringup andinstalling equipment on site.Attention
must be paid toensure that the techniquesused during
wiring/installationdonotincrease electromagnetic
emissionsor decrease the electromagneticimmunityof
theequipment, wiring oranyconnected devices. Ifin
anydoubt, contact Flowserve foradvice.
The motormust be wired upin
accordance with the motor manufacturer's
instructions(normally supplied within the terminal
box)including anytemperature, earth leakage,
current and otherprotective devices asappropriate.
Theidentification nameplate should be checked to
ensure the power supply is appropriate.
A device toprovide emergency stopping must
be fitted.
If not supplied pre-wired to the pump unit, the
controller/starterelectrical detailswill also be supplied
within the controller/starter.
For electrical detailson pump sets with controllers
see the separate wiring diagram.
See section 5.3, Direction of rotation
before connecting the motor to the electrical supply.
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4.9 Protectionsystems
The following protection systemsare
recommended particularly if the pump is installed in a
potentially explosive area or is handling a hazardous
liquid. Ifin doubt consult Flowserve.
If there is any possibilityof the system allowing the
pump to run against a closed valve or below
minimum continuoussafe flowa protection device
should beinstalled to ensure the temperatureof the
liquid does not rise to an unsafe level.
If there are any circumstancesin which the system
can allow the pump to run dry, or start up empty, a
powermonitor should be fitted to stop the pump or
preventit from being started.This is particularly
relevant if the pump ishandling a flammable liquid.
If leakage of product from the pump or its associated
sealing system can cause a hazard it is
recommended that an appropriate leakage detection
system isinstalled.
To prevent excessive surface temperatures at
bearingsit is recommended that temperature or
vibration monitoring are carried out. See sections
5.7.4 and 5.7.5.
If a defect of cooling can lead to temperature higher
than those acceptable a system of cooling
surveillance must be installed.
In the case of product lubricated
bearingsthe sourceof product supply should be
checked against the order.There maybe
requirementsfor an external clean supply, particular
supply pressure or the commencement of lubrication
supply before pump start-up.
5.1.2 Oil Lubrication
The bearingsare lubricated by pins. A constant level
oiler automatically maintainsthe correct oil level.
The oiler suppliesthe necessary quantity of oil. It
operates on theliquid seal principal and feedswith oil
only when the quantity of oil becomes toolow in the
bearing. It will stop to feed once a sufficient quantity
of oil is in the bearing.
The reserve contained in the reservoir refills
automatically the natural losses of the bearing. As
soon as the oil level approaches the minimum level of
the reservoir, refill the reservoir.
Regarding the qualityand the quantity of the oil to be
used, refer to the lubrication table and information
below.
Foroil lubricated pumps,fill the bearing
housing with correctgrade of oil to thecorrectlevel,ie
sightglassor constant level oilerbottle.
Except when explicitly required bythe customerin
the specifications, when a possibility of reverse
rotation existsthe customermust install a reverse
rotation protection device.
The customer must install all equipment required to
avoid water hammer.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried out by
fully qualified personnel.
5.1 Pre-commissioning procedure
5.1.1 Lubrication
Determine the mode of lubrication of the pump set,
eg grease, oil, product lubrication etc.
Grease lubricated pumpsand electric motors are
supplied pre-greased.
Otherdriversand gearboxes, if appropriate, should
be lubricatedin accordance with their manuals.
See below for the correct side on which constant
level oilersshould be installed.
Oiler
Direction of rotation of
thepump
Driveendside
Oiler
When fitted with a constant level oiler, the bearing
housing should be filled onlybyunscrewing or
hinging backthe transparent bottle and filling the
bottle with oil.Do notfill the bearing housing through
the breather hole.
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Oil levels are as indicated below. The distance
indicated is distance below the shaft centreline.
The oil filled bottle should then be refitted so as to
returnit to the upright position. Filling should be
repeated until oil remainsvisible within the bottle.
wrong direction of rotation can be harmful to the
pumps.
Ensure that the pump rotation is the same as the
arrow on the pump casing.
It ispreferable to check the direction of rotation
before installing the coupling. If not, the pump must
be filledin with theliquid beforestart-up.
If maintenance work has been carried
out to the site's electricity supply, the direction of
rotation should be re-checked asabove in case the
supply phasing has been altered.
5.4 Guarding
Guarding is supplied fitted to the pump set.
If this has been removed or disturbedensure that all
the protective guardsaround the pump coupling and
exposed parts of the shaft are securely fixed.
5.5 Primingand auxiliary supplies
Where there is any riskof the pump being run
against a closed valve generating highliquid and
casing external surface temperatures it is
recommended that usersfit anexternal surface
temperature protection device.
Ensure all electrical, hydraulic,
pneumatic, sealant andlubrication systems(as
applicable) areconnected and operational.
Ensure theinlet pipe and pump casing
are completely full of liquid before starting continuous
duty operation.
These operationsmust be carried out by personnel
with approved qualifications.
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5.5.1 Suction pressure above atmospheric
pressure
Open the air vent connection to allow the trapped air
to escape. Let liquid run out until free from air
bubbles.
5.5.2 Suction liftwith footvalve fitted
Fill suction pipe and casing with liquid at a pressure
of 1 to 2 bar from an external source. Vent as
describedin section 5.5.1.
h)Ensure all vent connectionsare closed
before starting.
i)Start motorand check outlet pressure.
j)If the pressure is satisfactory, slowly OPEN outlet
control valve.
k)Do not run the pump with the
outlet valve closed for a period longer than 20
seconds.
l)If NO pressure, or LOWpressure, STOP the
pump. Refer to section 7, Faults; causesandremedies, for fault diagnosis.
5.7 Running the pump
5.7.1 Venting the pump
Vent the pump to enable all trapped air to
escape taking due care with hot or hazardous liquids.
Under normal operating conditions, after the pump
hasbeen fullyprimed and vented, it should be
unnecessary to re-ventthe pump.
5.7.2 Pumps fittedwith packed gland
Foot valves are not recommended when
the pumped liquid has suspended solid particles.
Theymay lodge between foot valve seat and shutter.
5.5.3 Suction liftwithout foot valve
Pump casing vents on the suction volute must be
connected to an external vacuum pump priming
system. If in doubt, please consult Flowserve.
5.6 Startingthe pump
a)Ensure flushing and/or cooling/
heating liquid supplies are turned ON before
starting the pump.
b) CLOSE the outlet valve. If the pump isequipped
with a non-return flow valve andis to be started
with an opened discharge valve, verify that it is
closed by an adequate back pressure.
c) OPEN all inlet valves.
d) Open all valves of theminimal flowline to ensure
a minimal flow for the period the pump isrunning
against the closed discharge valve.
e) Prime the pump.
f)Check that all plugs are tight.
g) Checkthat the gland lightly tightens the packing.
If the pump has a packed gland theremust be some
leakage from the gland. Gland nutsshould initially be
finger-tight only. Leakage should take place soon
afterthe stuffing boxis pressurized.
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The gland must be adjusted evenly to give
visible leakage and concentric alignment of the gland
ring [4120] to avoid excesstemperature. If no
leakage takes place the packing will begin to
overheat. If overheating takesplace the pump should
be stopped and allowed to cool beforebeing restarted. When the pump isre-started, check to
ensure leakage is taking place at thepacked gland.
If hotliquids are being pumped it may be necessary
to slacken the gland nuts to achieve leakage.
The pump should be run forten minuteswith steady
leakage and the gland nuts tightened by 10 degrees
at a time until leakage isreduced to an acceptable
level.The temperature of the gland should be
checked aftereach round of tightening.If the
temperature startsto climb rapidly then back off the
gland nuts until the temperature drops down. Wait for
the temperature to stabilize beforetightening again.
Theleakage must not be reduced belowa rate of 20
dropsperminute. Bedding in ofthe packing may take
several hours.
Care must be taken when adjusting the gland
on an operating pump. Safety gloves are essential.
Loose clothing must not be worn to avoid being
caughtup by the pump shaft.Shaft guards must be
replaced after the gland adjustmentis complete.
If bearing temperaturesare to be monitored it is
essential that a benchmarktemperature isrecorded
at the commissioning stage and after thebearing
temperature has stabilized.
Record the bearing temperature (t)and the
ambient temperature (ta)
Estimate the likely maximum ambient
temperature (tb)
Set the alarm at (t+tb-ta+5) C [(t+tb-ta+10) F]
and the trip at 100 C (212 F) foroil lubrication
and 105 C (220 F) for grease lubrication
It isimportant, particularly with grease lubrication, to
keep a checkon bearing temperatures. After start up
the temperature rise should be gradual, reaching a
maximum afterapproximately1.5 to 2 hours. This
temperature rise should then remain constant or
marginallyreduce with time. (Refer to section 6.2.3.1
for furtherinformation.)
5.7.5 Normalvibration levels, alarm and trip
For guidance, pumps generally fall under a
classification for rigid support machines within the
International rotating machinery standards and the
recommended maximum levels below are based on
those standards.
Alarm and trip values for installed
pumpsshould be based on the actual measurements
(N) taken on site on the bearing housingsof the
pump in the fully commissioned as new condition.
Never run gland packing dry,even for
a short time.
5.7.3 Pumps fittedwith mechanical seal
Mechanical sealsrequire no adjustment. Any slight
initial leakage will stop when the seal isrun in.
Before pumping dirty liquids it isadvisable, if
possible, to run in the pump mechanical seal using
clean liquid to safeguard the seal face.
External flush orquench should be
started before the pump is run and allowed to flow for
a period after the pump has stopped.
Never run a mechanical seal dry,even
for a short time.
5.7.4 Bearings
If the pumps are working in a potentially
explosive atmosphere, temperature or vibration
monitoring at the bearingsis recommended.
The example (N) valueisgiven for the preferred
operating flow region (typically this mayextend to 70
to 120 % of the pump best efficiency point); outside
the preferred flow region theactual vibration
experienced may be multipliedby up to 2.
These standard valuescan vary with the rotational
speed and the power absorbed by the pump. For any
special case, do not hesitate to consult us.
Measuring vibration at regular intervalswill then show
anydeteriorationin pump or system operating
conditions.
Vibration Velocity - unfiltered
NormalN5.6 (0.22)
AlarmN x 1.257.1(0.28)
ShutdownTrip N x 2.011.2( 0.44)
Horizontal Configuration
mm/s(in./s) r.m.s.
5.7.6 Stop/start frequency
Pump setsare normally suitable for the numberof
equally spaced stop/startsper hour shown in the
table below. Checkactual capability of the driverand
control/starting system before commissioning.
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Motor rating kW (hp)
Up to 15 (20)15
Between 15( 20) and 90 (120)10
90(120)to150( 200)6
Above150( 200)Refer
Maximum stop/starts
perhour
Where dutyand standbypumps are installeditis
recommended thattheyare run alternately every week.
5.8 Stopping and shutdown
a)Close the outlet valve, but ensure
that the pump runsin this condition for no more
than a few seconds.
b) Stop the pump.
c) Avoid having the unit turn in the opposite
direction of the normal running conditions
d) Protect the pump against water hammer.
e) Make sure that the discharge line pressure does
not reach the foot valve.
f)Switch off flushing and/or cooling/heating liquid
supplies at a time appropriate to the process.
g)For prolonged shut-downs and
especially when ambient temperatures are likely
to drop below freezing point, the pump and any
cooling and flushing arrangements must be
drained orotherwise protected. When draining
the pump, first verify that theliquid temperature
hascooled sufficientlyto allow safe maintenance.
5.9 Hydraulic, mechanical and electrical
duty
This product has been supplied to meet the
performance specifications of your purchase order,
however it isunderstood thatduring the life of the
product these may change.The followingnotesmay
help the user decide how to evaluate the implications
of any change. If in doubt contact your nearest
Flowserve office.
5.9.1 Specific gravity (SG)
Pump capacity and total headin meters(feet) do not
change with SG, howeverpressure displayed on a
pressure gaugeis directly proportional to SG.Power
absorbed is also directly proportional to SG. It is
thereforeimportant to checkthat any change in SG
will not overload the pump driveror over-pressurize
the pump.
5.9.2 Viscosity
For a given flow rate the total head reduceswith
increased viscosity and increaseswith reduced
viscosity.Also fora given flow rate the power
absorbed increaseswith increased viscosity, and
reduces with reduced viscosity.
It isimportant that checks are made with yournearest
Flowserve office if changesin viscosity are planned.
5.9.3 Pump speed
Changing pump speed effectsflow, total head, power
absorbed, NPSHR, noise and vibration. Flow variesin
direct proportion to pump speed, head varies as
speed ratio squared and power variesas speed ratio
cubed.The new duty, however, will also be
dependent on the system curve. If increasing the
speed, it isimportant thereforeto ensure the
maximum pump working pressure is not exceeded,
the driver is not overloaded, NPSHA> NPSHR, and
that noise and vibration arewithin local requirements
and regulations.
5.9.4 Net positiv e suction head (NPSHA)
NPSH available (NPSHA)isthe head available at the
impeller inlet, above the vapourpressure of the
pumpedliquid.
NPSH required (NPSHR)isthe minimum head required
at theimpellerinlet,above thevapourpressure of the
pumpedliquid,to avoid excessive cavitation and
extreme performance degradation.
It isimportantthat NPSHA> NPSHR. The margin
between NPSHA> NPSHRshould beas large as
possible.
If any change in NPSHAisproposed,ensure these
margins are not significantly eroded. Referto the
pump performance curve to determine exact
requirementsparticularlyif flow has changed. If in
doubtplease consult yournearest Flowserve office
for advice and detailsof the minimum allowable
margin for your application.
5.9.5 Pumped flow
Flowmust not fall outside the minimum and
maximum continuoussafe flow shown on the pump
performance curve and or data sheet.
5.10 Pumps for Food Use or Potable
Water
If the pump has notbeen specifically ordered for a
food or drinking water application it must not be used
for these typesof applications. If it hasbeen ordered
for this type of application the following
recommendationsare to be followed.
5.10.1 Cleaning prior to operation
Pumpsthat are to be used for a food or drinking
water application should be cleaned before being put
intoinitial operation and after the installationof spare
partsthat are in contact with the liquid.
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Cleaning once the pump has been commissioned will
depend on the application and operating conditions.
The user must ensure that the cleaning procedures
are suitable for the application and operating
conditions, and local regulations.
6 MAINTENANCE
6.1 General
If a belt drive is used, the assembly and tension
of the belts must be verified during regular
maintenance procedure.
In dirty or dusty environments, regular checks
must be made and dirt removed fromareas around
close clearances, bearing housingsand motors.
It is the plant operator'sresponsibility to ensure
that all maintenance, inspectionand assembly work
iscarried out byauthorized and qualified personnel
who have adequatelyfamiliarized themselveswith
the subjectmatter by studying this manual in detail.
(See also section 1.6.2.)
Any workon the machine must be performed when it
isat a standstill. Itisimperative that the procedure for
shutting down themachine isfollowed, asdescribed
in section 5.8.
On completion ofwork all guards and safetydevices
must be re-installed and made operative again.
Before restarting the machine, the relevant
instructionslisted in section 5, Commissioning, startup, operation and shut down must be observed.
Oil and grease leaks may make the ground
slippery. Machine maintenance must always
begin and finish by cleaning the ground and the
exterior of the machine.
If platforms, stairsand guard railsare required for
maintenance, they must be placed for easy accessto
areaswhere maintenance and inspection are to be
carried out. The positioning ofthese accessories
must notlimit accessor hinder the lifting of the part to
be serviced.
When air or compressed inert gasis used in the
maintenance process, the operator and anyone in the
vicinity must be careful and have the appropriate
protection.
Do not spray air or compressed inertgason skin.
Do not direct an air or gas jet towards other people.
Never use air or compressed inertgasto clean
clothes.
Before working on the pump, take measures to
prevent an uncontrolled start. Put a warning boardon
the starting device with the words:
"Machine under repair: do not start".
With electric drive equipment, lockthe main switch
open and withdraw any fuses. Put a warning board
on the fuse box ormain switch with the words:
"Machine under repair: do not connect".
Never clean equipment with inflammable solventsor
carbon tetrachloride. Protectyourself against toxic
fumeswhen using cleaning agents.
6.2 Maintenance schedule
It is recommended that a maintenance plan and
schedule is adopted, in line with these User
Instructions. It shouldinclude the following:
a) The pump must be completely vented and
drained and rendered inert before any
disassembly operation.
b) Any auxiliary systems installed must be
monitored,if necessary, to ensure they function
correctly.
c) During cleaning of the pump ensure the
compatibility between the cleaning products and
the gaskets.
d) Verifythe condition of the gaskets
e) Gland packings must be adjusted correctly to
give visible leakage and concentric alignment of
the gland follower to preventexcessive
temperature of the packing or follower.
Mechanical sealsshould present no leakage.
f)Check for any leaksfrom gasketsand seals. The
correct functioning of the shaft seal must be
checked regularly.
g) Checkbearinglubricantlevel, and if the hours
run show a lubricant changeisrequired.
h) Checkthat the duty condition is in the safe
operating range for the pump.
i)Check vibration, noiselevel and surface
temperature at the bearings to confirm
satisfactory operation.
j)Check the tightnessof the connections.
k)Checkdirtand dustisremoved from areasaround
close clearances, bearinghousingsandmotors.
l)Check coupling alignment and re-alignif necessary.
m) Verify the correctoperation of the system.
The equipment used formaintenanceanddisassembly
in an ATEX zone mustbein conformity with the
requirementszone.
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TEMPERATURE
Our specialist service personnel can help with
preventative maintenance recordsand provide
condition monitoring for temperature and vibration to
identify the onset of potential problems.
If any problems are found the following sequence of
actions should take place:
a) Refer to section 7, Faults; causes and remedies,
for fault diagnosis.
b) Ensure equipment complies with the
recommendationsin this manual.
c) Contact Flowserve if the problem persists.
6.2.1 Routine inspection (daily/weekly)
The following checksshould be made
and the appropriate action taken to remedy any
deviations:
a) Checkoperating behaviour. Ensure noise,
vibration and bearing temperaturesare normal.
b) Checkthat there areno abnormal fluid or
lubricant leaks(static and dynamicseals) and
that any sealant systems (if fitted) are full and
operating normally.
c) Check that shaft seal leaksare within acceptable
limits.
d) Checkthe level and condition of oil lubricant.
On grease lubricated pumps, check running
hourssince last recharge of grease or complete
It isnot recommended that mechanical seals be
reused. Using an old one leavestoo much chance of
failure tomake the risk worthwhile, considering the
usual cost of installing and removing a pump from its
system. Attemptsto lap the mechanical seal faces
may be possible but require specialized technical
knowledge, skills and equipment beyond the scope of
these instructions. Complete mechanical seal rotors
and seatsare available from your FLOWSERVE
representative asare anyother repair parts.
6.9.4 Stuffing box sleeves
Check the stuffing box shaft sleeve outside surface
for scoring. If used with packing,any scoring will
shorten the life of the packing proportional to the
amount of scoring present. Ifused with a mechanical
seal, the outside surface must not be scored in the
area where the seal rotor bellowsor sealing ring
touches.
6.9.5 Ball bearings
It isnot recommended that the bearings be reused.
However,if reuse isintended, clean bearings with
petroleum solvent or kerosene and inspect forany
indicationsof damage or wear, such as metal
shavings, rust or surface galling. Further,judge the
condition of the bearings by rotating byhand.
Replace any bearing which showsany sign of
damageor that has been in service for an extended
period. Serviceable bearings should be spun in light
oil to completelyremove the solventafter cleaning, or
coated by hand with an anti-corrosion agent if they
are not to be reassembled immediately and wrap at
once in clean oil proof paper while awaiting
reassembly. The use of chlorinated solvents of any
kind isnot recommended in bearing cleaning
operations because of the rust hazard involved, nor is
the use of compressed air found desirable in cleaning
operations.
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6.9.6 Diffusers and interstage casings
Thereis normally no need to separate the diffusers
and interstage casings, however,if they do become
separated, ornewinterstage casingsor diffusersare
to beinstalled, care must be taken to insure that the
diffuser is seated (in contact) with theback surface of
the interstage casing, and that the pin fitscorrectly in
the hole.
6.10 Assembly
To assemble the pump consult the sectional
drawings, see section 8, Partslist and drawings.
Ensure threads, gasket and O-ring mating facesare
clean and that ball bearings are C3 fit. Apply thread
sealant to non-face sealing pipe thread fittings.
Do not force when assembling the various
components.
Coat all fittings with an antifriction product.
To assemble the pump, start from the suction side.
Assembly workshould be preferably carried out with
the pump in a vertical position.
To assemble the pump, reverse the dismantling
procedurespreviouslydescribed, see the cross
sectional drawings. Consult the sectional drawing to
organize the required operations. Replace all
componentsin their original place.
6.10.3 Anti friction bearings
Antifriction bearings should be preassembled so that
the complete bearing set can bemounted on the
pump casing.To do this, reverse the dismantling in
sections 6.8.2 and 6.8.3.
6.10.1 Shaft seal assembly
Packed Stuffing box:
as per section 6.2.5.
Mechanical seal:
Refer to assemblydrawings for the seal and pump.
Great caremust be taken concerning the cleanliness
during the mounting operation.
Remove the surface protection of the ringsjust before
installation.
As some O-ring materialsdo not support grease or
oil, water is preferred for easingassembling, where
compatible with the product to be pumped.
6.10.2 Product lubricated bearings (WDXE/S)
Install the bearing components after the whole pump
hasbeen assembled; see sections6.8.3.2 and
6.8.3.3 for diagrams.
- Put the sleeve onto the shaft end in taking carethat
the shaft pin fits into the slot.
- Put the circlip [6544-01]in the shaft groove.
- Install the bushing [3300] in the suction casing.
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7 FAULTS; CAUSES AND REMEDIES
FAULT SYMPTOM
Pu mp ov erheats and seiz es
B earings h av e sh ort l ife
Pump vib rat es o r is no i s y
M echanic al seal h as short life
M echanic al seal l ea ks ex cessiv el y
Pump req uir es ex ces sive po wer
Pump loses p rim e af ter start ing
Insuff icient pre ssur e dev elop ed
Insuf ficien t capacit y del ivered
Pump does no t deliv er liquid
PROBABLE C AUSESPOSSIBLE REMEDIES
Pump not primed.
Pump or suctionpipe not completelyfilled with
liquid.
Suctionlifttoo high or level toolow.
Insufficient margin betweensuction pressure and
vapour pressure.
Excessive amount of air or gas in liquid.Checkand purge pipes andsystem.
Air or vapour pocket insuctionline.Checksuctionline design for vapour pockets.
Air leaks intosuction line.Checksuction pipeis airtight.
Air leaks intopumpthrough mechanical seal,
sleeve joints,casing joint or pipe plugs.
Foot valvetoosmall.Investigatereplacing thefoot valve.
1630Throttling bush
2110Pump shaft
2210Impeller, suction stage
2250-01Impeller C
2250-01Impeller D
2250-02Impeller C forinternal bearing bush
2250-02Impeller D forinternal bearing bush
2300-01Impeller wear ring, suction impeller
2300-02Impeller wear ring, stage impeller
2445-01
2445-02
2450-01Shaft sleeve, Driveside
2450-02Shaft sleeve, Nondrive side
2450-03Inside fan Drive side
2450-04Inside fan Non drive side
2460-01Spacer sleeve forbearing Drive side
2460-02Spacer sleeve forbearing Drive side
2460-03
2471-01Bush,underbearing Drive side
2471-02Bush,underbearing Non drive side
2500Ring, Drum
2510Spacer ring,drumin2 parts
2540Deflector,Non drive side
2905-01
2905-02
2905-03Washer, plain
2905-04Washer, Curved spring
Shaft sleeve formechanical seal,
Drive side
Shaft sleeve formechanical seal, Non
drive side
Spacer sleeve for bearing Non drive
side
Washerfor gland packing Drive side
(cooled)
Washerfor gland packing Non drive
side (cooled)
3211Bearing housing, Drive side
3212Bearing housing, Nondrive side
3260Bearing cover, Drive side
3261Bearing cover, Drive side
3263Bearing cover, Non drive side
3300Bearing bush
3311Bearing bush,internal
3400-01Bearing sleeve for bearing bush
3400-02
Bearing sleeveforinternal bearing
bush
3712-01Bearing nut, Drive side
3712-02Bearing nut, Drive side
3712-03Bearing nut,non-Drive side
3853Greasenipple
3855Constant level oiler
4120-01Gland, flange Drive side
4120-02
Gland, flange Non drive side (no
cooled)
4120-03Gland, flange Non driveside (cooled)
4130-01Glandpacking, Drive side
4130-02
Gland packing, Non drive side (no
cooled)
4130-02Glandpacking, Nondriveside (cooled)
4131-01Follower,Drive side
4131-02Follower,Non driveside (no cooled)
4131-02FollowerNondrive side (cooled)
4200-01Mechanical seal, Drive side
4200-02Mechanical seal, Non drive side
4210-01
4210-02
Gland packing and/ormechanical seal
housing, no cooled Drive side
Gland packing and/ormechanical seal
housing, no cooled Non dive side
4213-01Mechanical seal cover, Drive side
4213-02Mechanical seal cover, Non drive side
Coolant housing, forGland packing
4410-01
and/ormechanical seal housing
cooled Drive side
Coolant housing, forGland packing
4410-02
and/ormechanical seal housing
cooled Non drive side
4590-01Gasketforoil bearing cover Drive side
4590-02
Gasket formechanical seal cover
Drive side
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ITEMDESIGNATION
4590-03
4590-04
4590-05
4590-06
Gasket forseal housing cooled Drive
side
Gasket forseal housing cooled Non
drive side
Gasket formechanical seal cover
Non drive side
Gasket foroil bearing cover Nondrive
side
4590-07Gasket, bearing bush cover
4610-01O ring bushunderbearing Drive side
4610-02O ring shaft sleeve Drive side
4610-03O ring Sealhousing Drive side
4610-04O ring under balance drum
4610-05O ring balance drum bush
4610-06O ring stage casing
4610-07
O ringbush underbearing Non drive
side
4610-08O ring shaft sleeve Nondrive side
4610-09O ring Sealhousing Nondrive side
4610-10O ring Sealhousing cooled Drive side
4610-11
4610-12
4610-13
O ringSeal housing cooled Nondrive
side
O ring,mechanical seal cover Drive
side
O ring,mechanical seal cover Non
drive side
6230Balance drum
6521Snifter valve
6541-01Lockwasher, Drive side
6541-02Lockwasher, Drive side
6541-03Lockwasher, Nondrive side
6544-01Circlip for shaft
6544-02Circlip,bore
6544-03Circlip,bore
6569-01Plug,Screwed 1/4" NPT Drive side
6569-02
6569-03
6569-04
Plug, Screwed 1/2" NPT bearing Drive
side
Plug, Screwed 1/4" NPT bearing Non
drive side