TapFlo CTV Series User manual

PP & PVDF
Stainless steel
CTV25-9
CTV20-9
CTV25-10
CTV25-9.8
CTV25-11
CTV40-12.5
CTV25-11.5
CTV40-13.5
CTV32-8.5
CTV32-10
CTV32-12.5
CTV Vertical
Centrifugal Pumps
Original Instruction
2020 | 1
Read this instruction manual carefully,
before you install and operate the pump.
IOM manual

CONTENTS
IOM manual CTV Vertical Centrifugal Pumps 2
EC DECLARATION OF CONFORMITY 01/EC/CTV/2016 ........................................................................... 4
0. GENERAL..................................................................................................................................... 5
0.1. Introduction................................................................................................................................ 5
0.2. Warning symbols ....................................................................................................................... 5
0.3. Qualification and training of personnel................................................................................... 5
1. INSTALLATION ................................................................................................................................... 6
1.1. Operation principle.................................................................................................................... 6
1.2. Receiving inspection.................................................................................................................. 6
1.3. Storage........................................................................................................................................ 6
1.4. Lifting and transportation......................................................................................................... 6
1.5. Installation.................................................................................................................................. 7
1.6. Environment ............................................................................................................................... 7
1.7. Suction and discharge piping ................................................................................................... 7
1.7.1. Connection of discharge pipe ........................................................................................... 7
1.7.2. Connection of suction pipe ............................................................................................... 7
1.8. Health and safety ....................................................................................................................... 8
1.8.1. Protection ........................................................................................................................... 8
1.8.2. Electrical safety .................................................................................................................. 8
1.8.3. Chemical hazard ................................................................................................................. 8
1.8.4. Noise level .......................................................................................................................... 8
1.8.5. Temperature hazards......................................................................................................... 8
1.8.6. Rotating parts..................................................................................................................... 8
1.8.7. Modifications and spare parts .......................................................................................... 8
1.9. Example of installation.............................................................................................................. 9
1.10. Instruments............................................................................................................................... 10
1.10.1. Electric power ................................................................................................................... 10
1.10.2. Optional instruments....................................................................................................... 10
1.10.3. Thermometer.................................................................................................................... 10
1.11. Motor connection .................................................................................................................... 10
1.12. Motor standard ........................................................................................................................ 11
2. OPERATION ...................................................................................................................................... 12
2.1. Start-up..................................................................................................................................... 12
2.1.1. Starting the pump............................................................................................................ 12
2.1.2. Restarting after power shut-off...................................................................................... 12
2.2. Stopping the pump.................................................................................................................. 12

CONTENTS
IOM manual CTV vertical centrifugal pumps 3
2.3. Residual risks............................................................................................................................ 13
2.4. Disposal after expiration of the expected lifetime ............................................................... 13
2.5. Waste of electrical and electronic equipment (WEEE) directive .......................................... 13
2.6. Actions in emergency .............................................................................................................. 13
3. MAINTENANCE ................................................................................................................................ 14
3.1. Inspections................................................................................................................................ 14
3.2. Location of faults ..................................................................................................................... 14
3.3. Disassembly and assembly of the pump................................................................................ 15
3.3.1. Disassembly procedure –PP & PVDF pumps ................................................................ 15
3.3.2. Assembly of the pump –PP & PVDF pumps ......................................................................... 17
3.3.3. Test run ............................................................................................................................. 21
3.3.4. Disassembly procedure –stainless steel pumps............................................................ 21
3.3.5. Assembly of the pump............................................................................................................. 23
3.3.6. Test run ............................................................................................................................. 24
4. OPTIONS ................................................................................................................................... 25
4.1. Suction extension and strainer –4E05, 4E10, 4S................................................................... 25
4.2. Optional discharge connection –5A, 5D................................................................................ 25
4.3. Left-hand thread on pump cover –8L.................................................................................... 26
4.4. Motor mounting screw protection plugs –8P ...................................................................... 26
5. SPARE PARTS.................................................................................................................................... 27
5.1. Spare parts –PP & PVDF pump .............................................................................................. 27
5.2. Spare parts –stainless steel pump.......................................................................................... 28
5.3. Recommended spare parts...................................................................................................... 29
5.4. How to order parts................................................................................................................... 29
6. DATA ................................................................................................................................................. 30
6.1. Pump code................................................................................................................................ 30
6.2. Dimensions and data –PP & PVDF pumps ............................................................................ 31
6.3. Dimensions and data –Stainless steel pumps ....................................................................... 32
6.4. Performance curves ................................................................................................................. 33
6.5. Permitted loads on inlet and outlet ....................................................................................... 34
7. WARRANTY ...................................................................................................................................... 35
7.1. Returning parts ........................................................................................................................ 35
7.2. Warranty ................................................................................................................................... 35
7.3. Warranty form.......................................................................................................................... 37

EC DECLARATION OF CONFORMITY 01/EC/CTV/2016
Series:
CTV…
Serial numbers:
2016 - … (from 1604 - …)
Manufactured by:
Tapflo AB
Filaregatan 4
442 34 Kungälv, Sweden
This declaration of conformity is issued under the sole responsibility of the manufacturer.
Object of declaration: SINGLE STAGE VERTICAL CENTRIFUGAL PUMPS
The object of the declaration described above is in conformity with the relevant Union
harmonization legislation:
•Directive 2006/42/EC of European Parliament and of the Council of 17 May 2006 on machinery,
amending Directive 95/16/EC;
•Directive 2014/35/UE of the European Parliament and of the Council of 14 February 2014 on
harmonization of the laws of Member States relating to electrical equipment designed for use
within certain voltage limits;
le the technical file.
Tapflo Sp. z o.o.
ul. Czatkowska 4b
83-110 Tczew
Signed for and on behalf of Tapflo AB:

Managing director
Tapflo AB, 16.04.2016

0. GENERAL
IOM manual CTV vertical centrifugal pumps 5
0. GENERAL
0.1. Introduction
CTV is a vertical, seal less centrifugal pump made from PP, PVDF or stainless steel AISI 316L.
With proper attention to maintenance, CTV pumps will give efficient and trouble free
operation. This instruction manual will familiarise operators with detailed information about
installing, operating and maintaining the pump.
The CTV series are single-stage pumps with the pump casing directly submerged in the
liquid. It is driven by an asynchronous electric motor. The inlet is located axially to the drive
shaft, facing downwards and has a female BSP (plastic pumps) or male BSPT (metal pumps)
threaded connection. The discharge pipe is vertical, coming up through the base plate and
has a male BSP / BSPT threaded connection (other connection types available upon
request).
0.2. Warning symbols
The following warning symbols are present in this instruction manual. This is what they say:
This symbol stands next to all safety instructions in this instruction manual
where danger to life and limb may occur. Observe these instructions and
proceed with utmost caution in these situations. Inform also other users of all
safety instructions. In addition to the instructions in this instruction manual, the
general safety and accident prevention regulations must be observed.
This signal stands at points in this instruction manual of particular importance
for compliance with regulations and directives, for correct work flow and for the
prevention of damage to and destruction of the complete dampener or its
subassemblies.
This symbol signals possible danger caused by the presence of electric fields or
live wires.
0.3. Qualification and training of personnel
The personnel in charge of installation, operation and maintenance of the pumps we
produce must be qualified to carry out the operations described in this manual. Tapflo shall
not be held responsible for the training level of personnel and for the fact that they are not
fully aware of the contents of this manual.
In case any instructions in this manual are unclear or any information is lacking, please
contact Tapflo before handling the pump.

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 6
1. INSTALLATION
1.1. Operation principle
In order to operate the pump, the liquid level has to be above the impeller before start-up
(for details see chapter 1.9 Example of installation). The rotating impeller generates a
centrifugal force accelerating the liquid through the pump casing and into the discharge
piping.         meaning the liquid level can drop below the
impeller line once the pump is operating. When the liquid inside a sump reaches the pump
inlet or end of a suction pipe, the liquid column is broken and the level must be increase
above the impeller once again in order to restart the pump.
1.2. Receiving inspection
Although precaution is taken by us when packing and shipping, we urge you to carefully
check the shipment on receipt. Make sure that all parts and accessories listed on the packing
list are accounted for. Immediately report any damage or shortage to the transport company
and to us.
1.3. Storage
If the equipment is to be stored prior to installation, place it in a clean location. Store the
pump on the motor fan cover in an upright position. Clean the pump thoroughly before
installation. When in storage, turn the shaft by hand at least twice per week
1.4. Lifting and transportation
Before handling the pump check the weight of the pump (see 6. Data). Refer to Your local
standards on how to handle the pump. If the weight is excessive to transport by hand it must
be lifted using slings and a suitable lifting device e.g. a crane or forklift.
Always use at least two slings and make sure they are secured in such a way to prevent the
pump from slipping and that the pump unit is hanging straight.
Never lift the pump with only one sling. Incorrect lifting can cause serious injury and/or
damage to the pump.
Never lift the pump under pressure.

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 7
Be careful that nobody passes under the pump when lifted.
Never try to lift the pump by the manifolds or hoses attached to the pump.
1.5. Installation
➢The CTV pump must be installed vertically and can be used in sumps, tanks and similar
containers
➢            
arrangement of necessary modifications.
➢Install the pump on a rigid support and fasten the pump by the baseplate.
1.6. Environment
➢There should be enough space in the vicinity of the pump in order to operate, maintain
and repair it.
➢The area in which the pump is operated, must be sufficiently ventilated. Excessive
temperature, humidity or dirt may affect the pump operation.
➢Behind the cooling fan of the motor there must be sufficient room for the hot air to
escape the motor.
1.7. Suction and discharge piping
A pump is generally part of a piping system that can include a number of components such
as valves, fittings, filters, expansion joints, instruments, etc. The way the piping is arranged
and the positioning of the components has a great influence on the operation and the lifetime
of the pump. The pump cannot be used as a support for the components connected to it.
The flow of liquid from the pump must be as even as possible. It is advisable to avoid any
tight bends or drastic reductions of diameters that may cause flow resistance in the
installation. In case of diameter reduction, it is advisable to use appropriate conical reductions
(possibly concentric on discharge side) at changes of diameter and at a minimum distance
from pump connections of five diameters.
1.7.1. Connection of discharge pipe
If the discharge height is more than 2 meters, a check valve should be installed in the
discharge line (see installation example, chapter 1.7 Example of installation.
The check-valve protects the pump from any backflow.
No stress or tension is allowed on the discharge pipe (it is recommended to use a flexible
hose between the pump outlet and fixed piping).
1.7.2. Connection of suction pipe
Use of an extension pipe is possible for the CTV pump to allow emptying of a tank from a
lower level. During operation, the liquid level can drop below the impeller (pump casing).
However, at start-up the level must always be over the impeller (pump casing). See installation
example, chapter 1.9 Example of installation

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 8
1.8. Health and safety
The pump must be installed according to local and national safety rules.
The pumps are constructed for particular applications. Do not use the pump on
applications different from that for which it was sold without consulting us to ascertain
its suitability.
1.8.1. Protection
In the interest of health and safety it is essential to wear protective clothing and safety
goggles when operating, and/or working in the vicinity of Tapflo pumps.
1.8.2. Electrical safety
Do not carry out any maintenance or/and operation on the pump while it is running or before
it has been disconnected from the power supply. Avoid any danger caused by electric power
(for details see current regulations in force). Check that electrical specifications on the data
plate are equivalent to the power supply to which it will be connected.
1.8.3. Chemical hazard
Whenever the pump is to be used for pumping a different liquid, it is essential to clean the
pump beforehand in order to avoid any possible reaction between the two products.
1.8.4. Noise level
CTV pumps, including the motor, in normal operating conditions produce a sound level below
80 dB(A). The major sources of noise are: liquid turbulence in the installation, cavitation or
any other abnormal operation that is independent from the pump construction nor the pump
manufacturer. The user must provide suitable protective means if the sources of noise could
produce a harmful noise level for operators and for the environment (in compliance with
current local regulations).
1.8.5. Temperature hazards
Raised temperature can cause damage on the pump and/or piping and may also be
hazardous for personnel in the vicinity of the pump/piping. The hot or cold parts of the
machine must be protected to avoid accidental contacts
1.8.6. Rotating parts
Do not tamper with the protection of the rotating parts, do not touch or approach rotating
parts in movement.
1.8.7. Modifications and spare parts
Any changes concerning the service of the pump as originally purchased, can be executed
only after written approval from Tapflo.
It is recommended to use only genuine Tapflo spare parts and approved accessories. The use
of unoriginal spare parts or non-approved accessories will void warranty and remove any
responsibility on our behalf for any damage caused to people or things.

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 9
1.9. Example of installation
Flooded installation Installation with suction extension
➢All installations:
1) Valve for flow control
2) Non-return valve (check valve) on discharge as close to the pump as possible
3) Connection point for pressure gauge or pressure switch
4) 
5) Quick connection between pump and piping system for easy disconnection
6) Arrange for drainage of liquid form the base plate.
➢Flooded installation
7) Foot strainer 3-5 mm mesh if solids are present or in open tank / sump installation
➢Installations with suction extension
8) Vertical suction extension is allowed. Size of pipe shall correspond with pump
connection size. Do not use complex piping on suction side. In particular
applications, use of bottom valve (ball type) may be used. In case of any questions
please consult us.
➢Important levels and dimensions
PP & PVDF
Stainless steel
Comment
Hmin (mm / inch)
50 / 2.0
80 / 3.1
Distance between base and liquid level
MIN start (mm / inch)
170 / 6.7
170 / 6.7
Minimum level during start-up
MIN (mm / inch)
80 / 3.1
80 / 3.1
Minimum level during operation
Smin (mm / inch)
50 / 2.0
50 / 2.0
Min distance to bottom of tank / sump
Emax @ 25°C (mm / inch)
1000 / 39
1000 / 39
Max length of suction extension
Emax @ 40°C (mm / inch)
500 / 19
500 / 19
Max length of suction extension
Emax @ 60°C (mm / inch)
-
-
Impeller must always be submerged

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 10
1.10. Instruments
In order to ensure a proper control of the performance and the conditions of the installed
pump, we recommend using the following instruments:
➢a pressure gauge on the discharge piping.
The pressure gauge on discharge must always be fitted between the pump and the shut-off
regulation valve. The output can be read on the pressure gauge, transformed into meters
and then compared with the typical curves.
1.10.1. Electric power
The electric power absorbed by the motor can be measured by means of a wattmeter.
1.10.2. Optional instruments
The optional instruments can indicate if pump is working in an abnormal way. The abnormal
conditions can be caused by: accidentally closed valves, lack of pumped liquid, overloads,
etc.
1.10.3. Thermometer
If the temperature of the pumped liquid is a critical parameter, provide the installation with
a thermometer (preferably on the suction side).
1.11. Motor connection
An electrician must always carry out the electrical connection. Compare the power supply
with the data plate specifications and then choose a suitable connection. The type of
connection is stated on the motor data plate and can be Y (star) or D (Delta), according to
the power supply of the motor (see figure below).
STAR
DELTA
Follow the connection standard used in the plant. In no case connect the electrical motor
directly to supply network but use a suitable electric switchboard equipped with a knife
switch and suitable safety devices (e.g. motor breaker switches) in the power circuit. Safety
devices against overloads must also protect the motors. Make sure that the motor has
suitable grounding and that it has been connected properly.

1. INSTALLATION
IOM manual CTV vertical centrifugal pumps 11
1.12. Motor standard
As a standard Tapflo CTV pump are equipped with motors of the following parameters:
➢International Mounting Arrangement V1
➢Number of poles / Rotation speed [rpm] 2
➢Non ATEX
➢Protection grade IP55
➢Voltage 3 phase
Motor power
RPM
Voltage
Frequency
0,55 kW
2800
230 / 
50 Hz
3400
265 / 
60 Hz
0,75 kW
2900
230 / 
50 Hz
3500
265 / 
60 Hz
1,1 kW
2900
230 / 
50 Hz
3500
265 / 
60 Hz
1,5 kW
2900
230 / 
50 Hz
3500
265 / 
60 Hz
2,2 kW
2900
230 / 
50 Hz
3500
265 / 
60 Hz

2. OPERATION
IOM manual CTV vertical centrifugal pumps 12
2. OPERATION
2.1. Start-up
➢Check manually that the motor is free to turn, moving the motor cooling fan.
➢Make sure that the piping is not clogged and is free from residues or foreign objects.
➢The shut-off / regulation valve on the discharge side must be completely closed.
➢The motor must turn in the same direction as the arrow shown on the pump. The
direction of rotation is always clockwise looking at the pump from the motor side; check
by starting briefly, then looking at the direction of rotation of the motor fan through the
fan lid. If it is wrong, the motor must be stopped immediately. Change the connection
to the terminals of the electric motor (chapter 1.9 Motor connection) and repeat the
procedure described above.
NOTE! Perform this check when pump is dry in order to avoid pump damage in case of
wrong terminal connection.
➢Any auxiliary connections must all be connected.
2.1.1. Starting the pump
Whenever starting the pump, make sure the pump casing is filled with liquid. See MIN start
level in chapter 1.7 Example of installation.
Start the electric motor and open the discharge shut-off / regulation valve gradually until the
desired output has been reached. The pump must not run two or three minutes with closed
discharge. Longer operation in these conditions can seriously damage the pump.
If the pressure shown on the pressure gauge on the discharge piping does not increase, turn
off the pump immediately and release pressure carefully. Repeat the connection procedure.
If there are changes of flow rate, head, density, temperature or viscosity of the liquid, stop
the pump and get in touch with our technical service.
During pump operation, make sure that the liquid level is within the permissible limits, see
levels Hmin and MIN in chapter 1.7 Example of installation.
2.1.2. Restarting after power shut-off
In case of accidental stopping, make sure that the non-return valve has prevented backflow
and check that the motor cooling fan has stopped. Start the pump again following the
instructions of chapter 2.1.1 Starting the pump.
2.2. Stopping the pump
It is advisable to close the discharge shut-off / regulation valve gradually and stop the motor
immediately after. The reverse sequence is not recommended, especially with larger pumps
or longer delivery piping. That is to avoid any problems due to water hammering. If a suction
shutoff valve has been installed, it is advisable to close it completely.

2. OPERATION
IOM manual CTV vertical centrifugal pumps 13
2.3. Residual risks
Even with proper application and observance of all points listed in this operating manual,
there is still an estimable and unexpected residual risk when using the pumps. It may leak,
fail due to wear, application-related causes or system-related circumstances.
2.4. Disposal after expiration of the expected lifetime
The metallic components like aluminium, stainless steel and carbon steel can be recycled.
Plastic parts are not recyclable and must be disposed of as residual waste. The pump must
be disposed of properly, according to local regulations. It should be noted that potentially
dangerous fluid residues may remain in the pump and can create a hazard to the operator
or the environment, therefore the pump has to thoroughly cleaned before disposal.
2.5. Waste of electrical and electronic equipment (WEEE) directive
Users of electrical and electronic equipment (EEE) with the WEEE
marking per Annex IV of the WEEE Directive must not dispose of end of
life EEE as unsorted municipal waste, but use the collection framework
available to them for the return, recycle, recovery of WEEE and minimize
any potential effects of EEE on the environment and human health due
to the presence of hazardous substances. The WEEE marking applies
only to countries within the European Union (EU) and Norway. Appliances are labelled in
accordance with European Directive 2002/96/EC. Contact your local waste recovery agency
for a designated collection facility in your area.
2.6. Actions in emergency
In the event of a leak during fluid transfer, the air supply have to be closed and the
pressure released. During spillage of an aggressive liquid, local and national safety rules
must be followed.

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 14
3. MAINTENANCE
Maintenance work on electrical installations must be performed by qualified
personnel and only when the power supply has been shutoff. Follow the local
and national safety regulations.
Wait five minutes for capacitor discharge before opening any equipment.
3.1. Inspections
In general CTV range pumps do not require any maintenance. However depending on the
application, it may be necessary to periodically clean the internals of the pump to optimize
the performance. In addition, it is advised to:
➢Periodically check discharge pressure.
➢Inspect the motor according to the instructions from the motor manufacturer.
3.2. Location of faults
Failure to deliver the liquid
Insufficient capacity
Insufficient head
Irregular flow
Electric current too high
Pump vibrates
Possible reason
Solution
X
X
Liquid level too low
See MIN start level chapter 1.7 Example of installation
X
X
Motor speed too low
Check the motor and motor connection
X
X
X
X
Impeller is clogged
Clean the pump
X
X
X
X
Impeller is damaged
Replace the impeller
X
Impeller diameter to small
Consult us for change
X
X
Wrong direction of rotation
See chapter 1.9 Motor connection for change of direction
X
NPSHa too low
Consult us for more details
X
X
Discharge piping clogged
Clean the pump thoroughly
X
X
X
Suction or strainer clogged
Check and clean
X
Pressure loses higher than expected
Change piping system
X
X
Air in the casing or discharge
Check system for air pockets
X
Specific gravity higher than expected
Increase the head with flow control valve
X
X
Viscosity higher than expected
Consult us for more details
X
Pressure loses lower than expected
Increase the head with flow control valve
X
X
Motor bearings worn
Change bearings, check vapour seal
X
X
Pump volute not submersed enough
Check liquid level in the tank
X
X
X
Motor failure
Check motor
X
Pump insufficiently fastened
Check the pump mounting bolts

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 15
3.3. Disassembly and assembly of the pump
The disassembly should only be performed by qualified personnel.
Each operation carried out on the machine must always be carried out once all the electrical
contacts have been disconnected. The pump-motor unit must be placed in a position where
it cannot be started unintentionally.
Before servicing in any way the parts that come in contact with the pumped liquid, make
sure that the pump has been fully emptied and washed. When draining the liquid, make
sure that there is no danger for people or the environment.
The numbers put in brackets, refer to the part numbers in the spare part drawings and spare
part lists in chapter 4“Spare parts”.
3.3.1. Disassembly procedure –PP & PVDF pumps
Fig. 3.3.1.1
After removal of the suction extension or/and strainer
(if applicable), place the pump horizontally on a table
or a bench.
Fig. 3.3.1.2
In a counter-clockwise direction unscrew the pump
cover [1312] using an adjustable spanner.
Fig. 3.3.1.3
Remove the pump cover [1312] with the cover O-ring
[18]. If necessary screw a plastic nipple into the pump
cover and then pull it out.

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 16
Fig. 3.3.1.4
Remove the motor fan cover from the electric motor
and then remove the motor fan.
Fig 3.3.1.5
Secure the free end of the motor shaft using universal
pliers or similar.
Fig 3.3.1.6
Unscrew the impeller.
Fig 3.3.1.7
Remove the impeller O-ring [193] from the impeller.
Fig 3.3.1.8
Unscrew the motor mounting screws [121] and
washers [122] and carefully pull the pump casing unit
[11] from the motor/shaft assembly.

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 17
Fig 3.3.1.9
Pull the shaft sleeve [162] from the motor shaft and
then remove the lip seal [161].
Fig 3.3.1.10
Carefully push out the shaft bushing [15] from its seat
by means of a screwdriver. Remove the O-ring [151]
from the shaft bushing.
Fig 3.3.1.11
Loosen the hose clip [20] and remove the stabilizer
from the discharge pipe [12].
The pump is now completely disassembled. Check all components, especially the O-rings
and lip seal, for wear or damage and replace if necessary. The casing O-ring should be
replaced after every pump disassembly!
3.3.2. Assembly of the pump –PP & PVDF pumps
The assemble the pump in a proper manner, please follow the below steps:
Fig. 3.3.2.1
Insert the shaft bushing [15] with its O-ring [151] into
the pump casing unit [11].
Note! Use some alcohol on the O-ring to ease
bushing insertion.
Fig. 3.3.2.2
Put the lip seal [161] on the shaft sleeve [162].

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 18
Fig. 3.3.2.3

NOTE! Make sure to perform this procedure with
care. Too much force applied while screwing in can
damage the impeller.
Fig. 3.3.2.4
Insert the O-
Fig. 3.3.2.5
Insert the shaft sleeve [162] into the pump casing unit
[11].
Fig. 3.3.2.6
While holding the shaft sleeve [162] rotate the pump
casing unit [11].
Fig. 3.3.2.7
Apply some alcohol / grease onto the impeller O-ring
[193] and insert    onto the shaft
sleeve [162].
NOTE! While holding the shaft sleeve, rotate the
impeller to check if the O-ring has not fallen out of
groove (if it is hard to rotate, check the impeller O-
ring).

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 19
Fig. 3.3.2.8
Insert the pump casing unit [11] on the motor shaft.
Fig. 3.3.2.9
Using the special assembly tool [8-32-9XXX-MT]
s
Note!
Block the motor fan in order to perform this
procedure. Use a torque wrench to screw the impeller
with the appropriate torque (see table in section 6.2.).
Fig. 3.3.2.10
Proper utilization of the 8-32-9XXX-MT assembly
tool.
Fig. 3.3.2.11
Make sure that the lip seal is touching the ceramic
bushing.
Fig. 3.3.2.12
Screw the pump casing unit [11] to the motor using
motor mounting screws [121] and washers [122, 123].
Note!
Make sure the shaft rotates concentrically in the
casing unit.

3. MAINTENANCE
IOM manual CTV vertical centrifugal pumps 20
Fig. 3.3.2.13
Screw the plug [22] onto the pump casing unit [11].
Note!
Use PTFE tape on the thread.
Fig. 3.3.2.14
Screw the elbow [17] into the pump casing unit [11].
Note!
Use PTFE tape on the thread.
Fig. 3.3.2.15
Screw the discharge pipe [12] into the elbow [17].
Note!
Use PTFE tape on the thread.