TapFlo TE Series Operation instructions

`
TE/TXE
Electric Diaphragm Pumps
Original Instruction
2020 | 2
Read this instruction manual carefully,
before you install and operate the pump
Pump models:
TE/TXE50
TE/TXE100
TE/TXE200
TE/TXE70
TE/TXE120
TE/TXE220
TE/TXE80
TE/TXE125
TE/TXE225
IOM manual

CONTENTS
IOM manual Tapflo TE series 1
EC DECLARATION OF CONFORMITY 01/EC/TE/2019.............................................................................. 4
EU DECLARATION OF CONFORMITY 01/ATEX/TE/2020 ........................................................................ 5
0. GENERAL......................................................................................................................................... 6
0.1. Introduction................................................................................................................................ 6
0.2. Warning symbols ....................................................................................................................... 6
0.3. Qualification and training of personnel................................................................................... 6
0.4. Related manuals......................................................................................................................... 7
0.5. Nameplate .................................................................................................................................. 7
1. INSTALLATION ............................................................................................................................... 8
1.1. Operation principle.................................................................................................................... 8
1.2. Receiving inspection.................................................................................................................. 8
1.3. Lifting and transportation......................................................................................................... 9
1.4. Storage........................................................................................................................................ 9
1.5. Foundation ................................................................................................................................. 9
1.6. Environment ............................................................................................................................. 10
1.7. Suction and discharge piping ................................................................................................. 10
1.7.1. Rotary connections (industrial pumps only) ................................................................. 10
1.7.2. Connection of suction pipe ............................................................................................. 10
1.7.3. Connection of discharge pipe ......................................................................................... 10
1.8. Health and safety ..................................................................................................................... 11
1.8.1. Protection ......................................................................................................................... 11
1.8.2. Explosion hazardous environments –ATEX................................................................... 11
1.8.3. Electrical safety ................................................................................................................ 12
1.8.4. Chemical hazard ............................................................................................................... 12
1.8.5. Air pressure....................................................................................................................... 13
1.8.6. Noise level ........................................................................................................................ 13
1.8.7. Temperature hazards....................................................................................................... 13
1.8.8. Rotating parts................................................................................................................... 14
1.9. Example of installation............................................................................................................ 14
1.10. Recommended installations................................................................................................ 14
1.10.1. Flooded ............................................................................................................................. 14
1.10.2. Self-priming...................................................................................................................... 15
1.11. Instruments........................................................................................................................... 15
1.11.1. Electric power ................................................................................................................... 15

CONTENTS
IOM manual Tapflo TE series 2
1.11.2. Optional instruments....................................................................................................... 15
1.11.3. Thermometer.................................................................................................................... 15
1.12. Motor connection ................................................................................................................ 16
1.13. Gear-motor standard ........................................................................................................... 17
2. OPERATION .................................................................................................................................. 18
2.1. Before starting the pump........................................................................................................ 18
2.2. Starting and operation ............................................................................................................ 18
2.2.1. Dry running ...................................................................................................................... 19
2.2.2. Dead head......................................................................................................................... 19
2.2.3. Optimization of the pump lifetime ................................................................................ 19
2.3. Pump stopping......................................................................................................................... 19
2.4. Cleaning and disinfection........................................................................................................ 20
2.4.1. CIP –Cleaning In Place (Sanitary pumps) ...................................................................... 20
2.5. Residual risks............................................................................................................................ 20
2.6. Disposal after expiration of the expected lifetime ............................................................... 20
2.7. Waste of electrical and electronic equipment (WEEE) directive .......................................... 20
2.8. Actions in emergency .............................................................................................................. 21
3. MAINTENANCE ............................................................................................................................ 22
3.1. Inspections................................................................................................................................ 22
3.2. When the pump is new or reassembled................................................................................. 22
3.2.1. Performance test.............................................................................................................. 22
3.3. Routine inspection ................................................................................................................... 22
3.4. Complete inspection ................................................................................................................ 23
3.5. Location of faults ..................................................................................................................... 24
3.6. Disassembly of the pump........................................................................................................ 25
3.6.1. Before the disassembly procedure ................................................................................. 25
3.6.2. Disassembly procedure.................................................................................................... 25
3.7. Assembly procedure ................................................................................................................ 28
3.7.1. Test run ............................................................................................................................. 28
4. SPARE PARTS................................................................................................................................ 29
4.1. Exploded view .......................................................................................................................... 29
4.3. Stocking recommendation...................................................................................................... 30
4.4. How to order parts................................................................................................................... 31
4.5. Pump code................................................................................................................................ 31
5. DATA ............................................................................................................................................. 32
5.1. Capacity curves......................................................................................................................... 32

CONTENTS
IOM manual Tapflo TE series 3
5.2. Capacity changes...................................................................................................................... 32
5.3. Dry suction lift curve ............................................................................................................... 33
5.4. Technical data .......................................................................................................................... 33
5.5. Dimensions ............................................................................................................................... 35
5.6. Tightening torques .................................................................................................................. 36
5.7. Permitted loads on manifolds................................................................................................. 37
6. WARRANTY .................................................................................................................................. 38
6.1. Warranty form.......................................................................................................................... 38
6.2. Returning parts ........................................................................................................................ 39
6.3. Warranty ................................................................................................................................... 39

EC DECLARATION OF CONFORMITY 01/EC/TE/2019
Series: TE(...)50...; TE(...)100...; TE(...)200...; TE(...)70...; TE(...)120...; TE(...)220...; TE(...)80...;
TE(...)125...; TE(...)225...;
Serial numbers:
2018 - … (from 1801-…)
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: ELECTRO-MECHANIC DOUBLE DIAPHRAGM PUMPS
The object of the declaration described above is in conformity with the relevant Union
harmonisation legislation:
➢Directive 2006/42/EC of European Parliament and of the Council of 17 May 2006 on machinery,
amending Directive 95/16/EC;
➢Directive 2014/30/EU of the European Parliament and of the Council of 26 February 2014 on the
harmonisation of the laws of the Member States relating to electromagnetic compatibility (recast)
Text with EEA relevance
➢Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the
harmonisation of the laws of the Member States relating to the making available on the market of
electrical equipment designed for use within certain voltage limits Text with EEA relevance
migiel is authorized to compile 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, 30.01.2019 r.

EU DECLARATION OF CONFORMITY 01/ATEX/TE/2020
Series:
TXE(...)50...; TXE(...)100...; TXE(...)200...; TXE(...)70...; TXE(...)120...; TXE(...)220...;
TXE(...)80...; TXE(...)125...; TXE(...)225...;
Serial numbers:
2020 - … (from 2004-…)
Pump materials:
Conductive PE, Conductive PTFE, Conductive PP, Aluminium, PTFE coated aluminium, Cast
iron, Stainless steel AISI 316/316L, AISI 904L, Hastelloy C
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: CONDUCTIVE ELECTRO-MECHANIC DIAPHRAGM PUMP HEAD
EU Type Examination Certificate was carried out by J.S. Hamilton Poland Sp. z o.o. (Notified Body
No. 2057) and as a result a certificate No: JSHP 20 ATEX 0025Xwas issued.
The object of the declaration described above is in conformity with the relevant Union
harmonisation legislation:
➢Directive 2014/34/EU of the European parliament and of the council of 26 February 2014 on
Equipment or Protective System intended for use in potentially explosive atmosphere
➢EN ISO 80079-36:2016-07
➢EN ISO 80079-37:2016-07
and is intended for operation in potentially explosive atmospheres according to:
II 2G Ex h IIC T6…T4 Gb
II 2D Ex h IIIC T60ºC…T125ºC Db
Signed for and on behalf of Tapflo AB
Ekstrand
Managing Director
Tapflo AB, 01.04.2020r

0. GENERAL
IOM manual Tapflo TE series 6
0. GENERAL
0.1. Introduction
The Tapflo Electro-Mechanic Operated Diaphragm Pump range is a series of pumps for
industrial and hygienic applications. The pumps are designed to be safe, simple and easy to
use and maintain. The pumps are suitable for almost all different chemicals used by the
industry today.
The pumps are powered with an electric motor which is coupled with the diaphragm shaft.
To decrease the motor rotational speed a gearbox is used. This provides smooth and almost
pulsation free operation.
With proper attention to maintenance, Tapflo Pumps will give efficient and trouble free
operation. This instruction manual will familiarise operators with detailed information about
installing, operating and maintaining of the pump.
When installing, operating and maintaining of the pump unit you must strictly follow the
IOM manual. Otherwise injury or life hazard may occur.
In case any instructions in this manual are unclear or any information is missing, please
contact Tapflo before handling the pump.
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 pump 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.

0. GENERAL
IOM manual Tapflo TE series 7
0.4. Related manuals
➢IOM Manual - PE and PTFE diaphragm pumps
➢IOM Manual - Metal series diaphragm pumps
➢IOM Manual - Sanitary Series
0.5. Nameplate
The nameplate is made in the below design. It is made of AISI 304 stainless steel and placed
on the pump centerblock (see page 1). Non-ATEX nameplate dimensions are 38 x 48 mm
and ATEX 38 x 78 mm.

1. INSTALLATION
IOM manual Tapflo TE series 8
1. INSTALLATION
1.1. Operation principle
The Tapflo electric diaphragm pump is driven by a gear-motor. In EODD pumps we have to
change rotary motion into reciprocating one. It is obtained by an eccentric shaft with a cam
and piston. The rotary movement of the shaft (red part) is transferred to the reciprocating
movement of the diaphragm shaft (yellow part).
➢Click the image for animation
The Suction Cycle:
➢Suction (chamber 1)
One diaphragm creates a suction action in one chamber (right side) when being pulled
back from the housing.
➢Discharge (chamber 2)
The other diaphragm simultaneously transmits the pressure to the liquid in the second
chamber (left side) of the housing, pushing it towards the discharge port.
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. INSTALLATION
IOM manual Tapflo TE series 9
1.3. Lifting and transportation
Before handling the pump check the weight of the pump (see 5.3. Technical 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.
The pump is equipped with eye bolts to ease transportation.
Never lift the pump under pressure.
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.
1.4. Storage
If the equipment is to be stored prior to installation, place it in a clean location. The pump

below 65%. It should not be exposed to any heat source e.g. radiator, sun as this could result
in a negative way on the tightness of the pump. Do not remove the protective covers from the
pump.
When in storage, turn the shaft by hand at least twice per month. The pump-motor unit should
always be stored indoor in dry, vibration and dust free conditions.
1.5. Foundation
The pump-motor unit must stand on and be
fixed to a sufficiently rigid structure that can
support the entire perimeter on which the unit
stands. The foundation on a firm bottom is the
most satisfactory. Once the pump is in position,
adjust level with metal shims between the feet
and the surface on which it stands. Check that the
feet of the pump motor unit stand well on each
of them. The surface on which the foundation
stands must be flat and horizontal. If the unit is
fitted on a steel structure, make sure that it is supported so that the feet do not warp. In any
case, it is advisable to fit some anti-vibration rubber pieces between the pump and the
brickwork.

1. INSTALLATION
IOM manual Tapflo TE series 10
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
eccentric on suction side and concentric on discharge side) at changes of diameter and at a
minimum distance from pump connections of five diameters.
1.7.1. Rotary connections (industrial pumps only)
The suction and discharge connections can be rotated  This simplifies the assembly and
installation of the pump. If you wish to rotate the connections, screw a threaded nipple into the
connection and rotate it. It is also advised to loosen the upper nuts to ease rotation.
NOTE! Remember to re-torque the housing nuts after this procedure.
1.7.2. Connection of suction pipe
Remember that the suction pipe/connection is the most critical point, especially if the pump is
priming. Just a small leakage will dramatically reduce the suction capability of the pump. When
connecting the suction pipe, the following is recommended:
1)
For satisfactory operation, use a reinforced hose (the suction power may otherwise shrink
the hose) or other flexible piping. The internal diameter of the hose should be the same
as on the suction connection (at the bottom of the pump) to have best suction capability.
If the diameter of a hose is smaller, it will affect the pump's performance or cause its
malfunction.
2)
Make sure that the connection between the hose and the pump is completely tight,
otherwise the suction capability will be reduced.
3)
Always use as short suction pipe as possible. Avoid air pockets which can emerge within
long piping.
1.7.3. Connection of discharge pipe
For this connection it is only recommended to have a simple and positive flow connection. Use
a hose or flexible piping (minimum one meter) between the discharge connection and any rigid
fixed piping. Coil the hose at least one turn. All components (hose, pipe, valves etc.) on the
discharge piping must be designed for minimum PN 10.
NOTE! Never close the shut-off valve during pump operation!

1. INSTALLATION
IOM manual Tapflo TE series 11
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.
The pumps are tested with water. If the pumped product can come into reaction with
water, please make sure the pump is dry before putting it into operation.
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. Explosion hazardous environments –ATEX
The standard PE & PTFE series pumps are not allowed to operate in environments where there
is danger of explosion. Static electricity may occur in the pump under operation, which may
cause explosion and injury. Special conductive TXE pumps are available for such applications
that are equipped with an explosion proof gearmotor. Metal pumps need only ATEX certified
gearmotor to operate in hazardous environments. Follow below instructions and local/national
rules for safe use.
ATEX (directive 2014/34/EU) classification of Tapflo TXE pump head:
II 2G Ex hIICT6…T4 Gb
II 2D Ex hIIIC T60ºC…T125ºC Db
Equipment group: II all other explosive areas than mines;
Category group: 2high level of protection (can be used in zone 1);
Atmosphere: Ggas;
D dust;
Explosion group: IIC gas group (such as acetylene, hydrogen);
IIIC dust group (conductive dusts);
Type of protection*: hcontrol of ignition sources;
Temperature class**: T4, T6 in the event of a malfunction, the maximum temperature of
asurface that may be exposed to gas T4 , T6 = 85;
EPL protection level: Gb, Db high protection.
* The type of protection is h (c) design safety due to constructional measures.
** The temperature class of the device depends on the temperature of the pumped medium:
Medium
temperature
Ambient temperature
-20°C≤Ta≤+40°C
up to 40
T6 / T60
up to 60
T6 / T74
up to 80
T5 / T94
up to 110
T4 / T125

1. INSTALLATION
IOM manual Tapflo TE series 12
ATEX (directive 2014/34/EU) classification of Tapflo TXE pump units:
II 2G IIC T4
Equipment group: II all other explosive areas than mines;
Category group: 2high level of protection (can be used in zone 1);
Atmosphere: Ggas;
Explosion group: IIC gas group (such as acetylene, hydrogen);
Temperature class: T4 in the event of a malfunction, the maximum temperature of a
surface that may be exposed to gas T4 ;
Earth connection of the pump and other equipment
Connect a suitable earth wire to the stainless steel earth connection that is placed on the inside
of one of the pump housings. Connect the other end of the earth wire to earth and also make
sure that other equipment like hoses/pipes/containers etc. are properly earthed/connected.
Dry run in ATEX pump
ATEX approved pumps can run dry without increasing the risk of creating potential ignition
sources. Nevertheless, dry run periods should be decreased to minimum as they increase the
wear of parts inside of the pump.
Centerblock temperature control
In ATEX applications it is essential to monitor the centerblock temperature. In case of failure
the temperature can rise and the pump has to be stopped immediately.
Gearmotor maintenance intervals
The ATEX rated gearmotors have to undergo a general overhaul based on the below
maintenance intervals:
Pump size
Motor power
Maintenance interval
TE50/70/80
0.55 kW; 0.75 kW
40.000 hours
0.25 kW
14.500 hours
TE100/120/125
1.5 kW; 1.1 kW
18.350 hours
0.55 kW
35.200 hours
TE200/220/225
3.0 kW; 2.2 kW; 1.1 kW
12.500 hours
1.8.3. 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.
1.8.4. 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. INSTALLATION
IOM manual Tapflo TE series 13
1.8.5. Air pressure
The pump is equipped with an air treatment system mounted on the side housing of the pump.
The diaphragm is balanced by means of a support plate and does not require compressed air
to operate.
When discharge pressure is below 4 bar, pump can work without air support to the diaphragm.
Nevertheless over 2 bar on discharge we recommend to use air support for optimal diaphragm
lifetime. Below 2 bar we recommend not to use air support.
The air pressure on the output of the filter-regulator should be set to 1,5 
exceed the recommended air pressure.
Discharge pressure
Air side back-up
0 2 bar
Not recommended
2 4 bar
Recommended
As prevention purpose, a filtration of the air by means of a 5 micron filter or finer is
recommended. Recommended air quality according to PN-ISO8573-1:2010 is particles class 6,
water class 4 and oil class 4. Dirt or oil in the air can under unfortunate circumstances be the
cause of a breakdown.
ATTENTION!
If air support is utilized, it should only be used during pump operation. When pump has no
counter pressure, the air installation should also be relieved of pressure. Failure to do so may
result in premature diaphragm failure.
1.8.6. Noise level
At tests, the noise level from a Tapflo pump has not exceeded 80 dB(A). Under some
circumstances, for example if the pump is operating under high speed, the noise can be
inconvenient or hazardous for personnel staying for long periods in the vicinity of the pump.
This hazard can be prevented by:
➢using suitable ear protection;
➢lowering the speed of the pump;
➢using elastomer valve balls (EPDM, NBR or polyurethane) instead of PTFE, ceramic or
stainless steel, provided that the elastomer is compatible with the pumped liquid.
1.8.7. 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. Avoid quick temperature
changes and do not exceed the maximum temperature specified when the pump was
ordered. See also general max temperatures based on water in chapter 6 “DATA”.
➢When the pump is exposed to ambient temperature variations or if there is big difference
between the temperature of the product and the surrounding, the tightening torques of
the housing nuts should be checked periodically as part of preventive maintenance (please
contact Tapflo for interval proposals). Ambient temperature limits are form -20ºC to +40ºC.

1. INSTALLATION
IOM manual Tapflo TE series 14
➢If a hot product is pumped, the pump should not stand still when filled for a longer period
of time. This could cause leakage from the pump.
➢accelerated wear of
parts made of these materials. This is a hazard that has to be accepted when pumping such
cold products. Also in such case, when a pump is not operational it should be drained of all
liquid.
➢Bear in mind that the viscosity of the product changes with temperature. This has to be
taken into consideration when selecting the pump.
➢The fluid remaining in the connected piping, as well as in the pump itself, may expand
because of freezing or heat, which may cause damage to the pump or/and piping, and lead
to leakage of the fluid.
➢Some parts of the TE pump can become hot during operation and cause burns, therefore
make sure to use appropriate protection when handling the pump.
1.8.8. Rotating parts
Do not tamper with the protection of the rotating parts, do not touch or approach rotating
parts in movement.
1.9. Example of installation
1. Motor power supply
2. Gate valve compressed air
3. Flexible hose
4. Air treatment system
5. Flexible piping
6. Gate valve suction
7. Gate valve discharge
8. Coiled flexible piping
9. Flow gauge
10. Safety valve
1.10. Recommended installations
The Tapflo pump is flexible in the way you are able to install it.
1.10.1. Flooded
The piping system is designed with a positive suction head. This is the best way of installation
where it is necessary to completely evacuate all liquid from the container, or where viscous
(thick) products are transferred.
NOTE! Do not exceed 0,7 bar suction pressure! Higher pressure may cause premature
diaphragm failure and irregular pump operation.
1
2
3
4
6
7
8
9
10

1. INSTALLATION
IOM manual Tapflo TE series 15
1.10.2. Self-priming
The Tapflo pump is designed to pull a high vacuum. It is able to evacuate an empty suction pipe
without any damage to the pump. The suction lift is up to 3.5 meters (11.5 ft.) from an empty
suction pipe and up to 8 meters (26.2 ft.) from a wetted pipe.
NOTE!
Even if all above safety instructions are met and complied with, there still exists a minor danger
in the event of a leakage or mechanical damage of the pump. In such case the pumped product
can emerge on sealing areas and connections.
1.11. 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-vacuum gauge on the suction piping;
- a pressure gauge on the discharge piping.
The pressure intakes must be made of straight pieces of piping at a distance of minimum five
diameters from the pump inlets. The pressure gauge on discharge must always be fitted between
the pump and the regulation valve. The output can be read on the pressure gauge, transformed
into meters and then compared with the typical curves.
1.11.1. Electric power
The electric power absorbed by the motor can be measured by means of a wattmeter or an amp
gauge.
1.11.2. 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.
1.11.3. Thermometer
If the temperature of the pumped liquid is a critical parameter, provide the installation with a
thermometer (preferably on the suction side).

1. INSTALLATION
IOM manual Tapflo TE series 16
1.12. Motor connection
An expert 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 Tapflo TE series 17
1.13. Gear-motor standard
As a standard Tapflo EODD pump are equipped with gear-motors of the following parameters:
➢International Mounting Arrangement B5
➢Number of poles / Rotation speed [rpm] 4 / 1400
➢Non ATEX*
➢Protection grade IP55
➢Voltage 3 phase
➢Efficiency class IE3
➢Gear ratio i=8.2÷25.85
➢Output rpm 53÷172 @ 50 Hz
➢Thermal protection –PTC
* If ATEX pump is selected standard ATEX rating is:
- Gearbox –II 2G Ex h IIC T4 Gb
- Electric motor –II 2G Ex db eb IIC T4 Gb
TE(...)50...; TE(...)70...; TE(...)80...;
Motor power
-
Gear ratio
Output RPM
Voltage
Frequency
0.75 kW
4 poles
8.22
172
230 / 
50 Hz
4 poles
206

60 Hz
0.55 kW
4 poles
12.96
106
230 / 
50 Hz
4 poles
127

60 Hz
0.25 kW
4 poles
24.8
56
230 / 
50 Hz
4 poles
67

60 Hz
TE(...)100...; TE(...)120...; TE(...)125...;
Motor power
-
Gear ratio
Output RPM
Voltage
Frequency
1.5 kW
4 poles
8.22
172
230 / 
50 Hz
4 poles
206

60 Hz
1.1 kW
4 poles
12.96
110
230 / 
50 Hz
4 poles
132

60 Hz
0.55 kW
4 poles
25.85
53
230 / 
50 Hz
4 poles
63

60 Hz
TE(...)200...; TE(...)220...; TE(...)225...;
Motor power
-
Gear ratio
Output RPM
Voltage
Frequency
3.0 kW
4 poles
8.92
164
230 / 
50 Hz
4 poles
197

60 Hz
2.2 kW
4 poles
13.67
107
230 / 
50 Hz
4 poles
128

60 Hz
1.1 kW
4 poles
24.58
58
230 / 
50 Hz
4 poles
69

60 Hz

2. OPERATION
IOM manual Tapflo TE series 18
2. OPERATION
2.1. Before starting the pump
➢Make sure the pump is installed according to the installation instruction (chapter 1).
➢Filling of the pump with liquid before start is not necessary.
➢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 suction shut-off valve (if any) must be completely open.
➢The shut-off valve on the discharge side (if any) must be completely opened.
➢Any auxiliary connections must all be connected.
➢When installation is new or reinstalled, a test run of the pump with water should be
conducted to make sure that the pump operates normally and does not leak.
➢When installation is new or reinstalled, check the pump housing nuts tightening
torque (see chapter 5.5 “Tightening torques”). After approximately one week of
operation, the torque should be checked again. This is important to prevent possible
leakage.
➢Starting the electrical motor makes the pump run at full capacity!
2.2. Starting and operation
Open the discharge valve and start the electric motor. The pump must not run with
completely closed discharge - these conditions can seriously damage the pump and cause
injury to the operator.
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.
Make sure that pressure on the discharge does not exceed 4 bar!
A device must be incorporated into the pump, system, or drive, to prevent the pump
exceeding the above stated pressure. Do not allow the pump to operate with a
closed/blocked discharge unless a pressure relief device is installed.
A pressure relief valve must be assembled obligatory on the discharge side by the
customer.
Pump can be equi.
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.
Note! Considering the suction capacity when air is still in the suction pipe, it is
recommended to start with low speed (using a frequency inverter) at the beginning.
At 50 Hz, rise up and shut down should be set to 5 seconds. This is not necessary if the
pump is filled with liquid before start.
When the pump has been filled with liquid, the speed may be raised in order to increase
the suction capacity of the pump. Remember that suction capacity is higher when pump
runs slowly.

2. OPERATION
IOM manual Tapflo TE series 19
The performance of the pump can be adjusted by means of a frequency inverter. The pump
operation does not depend upon the direction of rotation and can achieve full capacity in
both directions of rotation.
2.2.1. Dry running
Although the pump is prepared for dry running it is important to have in mind that long
periods of dry run may cause damage to the wearing parts of the pump. What is more, an
empty pump should operate at low speeds controlled by a frequency inverter.
2.2.2. Dead head
The pump cannot operate with closed discharge valve. This may lead to pump malfunction
and cause injury to operators in the vicinity of the pump.
The discharge pressure can never exceed 4 bar.
2.2.3. Optimization of the pump lifetime
➢Continuous operation at higher frequency than 50 Hz will cause premature wear of the
components. As a general rule, we recommend to run 
frequency.
➢When the pump is shut down while pumping a liquid containing particles, the
particulate matter contained in the liquid will be deposited and get stuck inside the
pump chamber. Therefore after finishing work the pump must be emptied of the
remaining fluid. Otherwise, when starting the pump again, the diaphragm may get
damaged and the shaft may bend leading to grub screw fracture.
➢When reducing the motor rotation speed, control the gear-motor surface temperature
if it does not exceed the nominal working temperatures stated by the gear-motor
manufacturer.
2.3. Pump stopping
It is advisable to stop the pump by means of motor shut down. With larger pumps or longer
delivery piping water hammering may occur. It is therefore advised to install a check valve
on the discharge to protect the pump. If a suction shutoff valve has been installed, it is
advisable to close it completely after pump is fully stopped.
The pump should be stopped by cutting of electrical power to the motor or frequency
inverter (if used at 50 Hz cool down should be set to 5 seconds).
If pump stoppage exceeds 30 minutes relief the pressure from the diaphragm air side
NOTE! Never stop the pump by completely closing the discharge valve without motor shut
down.