Sera ABP-30 User manual

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
www.sera-web.com
Product: Air driven diaphragm pump
Produit: Pompe pneumatique
à membrana
Type/ Tipo: ABP - 030
APB - 045
APB - 100
APB - 150
APB - 340
APB - 650
APB - 850
APE - 030
APE - 045
APE - 100
APE - 150
APE - 340
APE - 650
APE - 850
Fabricante:
sera GmbH
sera-Straße 1
34376 Immenhausen
Germany
Tel. [phone]
Fax. [phone]
www.sera-web.com
[e-mail]
Translation of the original operating instructions!
Trous droits de modifications techniques reservés!

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
www.sera-web.com

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
www.sera-web.com
FR
EN
Operating Instructions
Notice de mise en service
from page 04
De la page 34
ATTENTION !
Documents spécifiques au projet tels que la description du
produit et les rapports d'essai ne font pas partie de ce
mode d'emploi.
CAUTION !
Project-specific documents such as product description
and test reports are not part of this operating instructions.

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
4 www.sera-web.com Subject to technical modifications! TA
312 Rev. 21 en 08/2018
EN
Contents
1General.............................................. 5
1.1 Types......................................................................5
1.1.1 APB.................................................................................5
1.1.2 APE.................................................................................5
1.2 Type series.............................................................5
1.2.1 Type AP.. - 30 to AP.. – 150.........................................5
1.2.2 Type AP.. - 340...............................................................5
1.2.3 Type AP.. - 650 and AP.. - 850 ..................................5
1.3 Type plate...............................................................6
1.4 Operating conditions...............................................6
2Medium.............................................. 6
3Safety Instructions ............................. 6
3.1 Quality Instructions .................................................6
3.2 Marking of Instructions............................................6
3.3 Qualification and Training of Personnel...................6
3.4 Dangers in Case of Inobservance
of the Safety Instructions.........................................6
3.5 Safety-Conscious Working......................................7
3.6 Safety Instructions for the Operator.........................7
3.7 Safety Instructions for Maintenance,
Inspection and Installation.......................................7
3.8 Arbitrary Modification and
Spare Parts Production...........................................7
3.9 Inadmissible Operating Procedures ........................7
3.10 Proper Use .............................................................7
3.11 Personal Protection for
Service and Maintenance........................................7
4Transportation and Storage................ 8
4.1 General...................................................................8
4.2 Transportation.........................................................8
4.3 Storage...................................................................8
5Technical data ................................... 9
5.1 Dimensions.............................................................9
5.2 Performance data APB .........................................10
5.3 Performance data APE .........................................11
5.4 Performance curves..............................................12
5.4.1 Performance curve (AP.. - 30)......................................13
5.4.2 Performance curve (AP.. - 45)......................................13
5.4.3 Performance curve (AP.. - 100)....................................14
5.4.4 Performance curve (AP.. - 150)....................................14
5.4.5 Performance curve (AP.. – 200.1)................................15
5.4.6 Performance curve (AP.. - 340)....................................15
5.4.7 Performance curve (AP.. - 650)....................................16
5.4.8 Performance curve (AP.. - 850)....................................16
6Functional description........................ 17
7Setup / Installation ............................. 17
7.1 Setup....................................................................17
7.2 Grounding (APE-series)........................................17
7.3 Connecting the lines .............................................18
7.4 Connecting the compressed air supply .................19
8Commissioning.................................. 20
8.1 Controlling the air driven diaphragm pump ............21
9Maintenance...................................... 22
9.1 Wearing parts........................................................22
9.2 Spare parts............................................................22
9.2.1 Spare part sets AP.. - 30 ─ AP..- 850
(all material designs).....................................................22
9.3 Maintenance of valves...........................................23
9.4Exchange of diaphragms.......................................24
9.4.1 Diaphragm tightening torques ......................................25
9.5 Exchange of the control valve................................25
10 De-Commissioning............................ 26
11 Fault Analysis and Corrective Action . 26
12 Disposal ............................................ 28
12.1 Dismounting and Transport ...................................28
12.2 Complete Disposal................................................28
13 Accessories....................................... 28
13.1 Compressed air supply unit(s)...............................28
13.2 Pulsation damper with automatic
diaphragm control..................................................28
13.3 Stroke transmitting device.....................................28
14 Clearance Certificate......................... 29
15 Declaration of conformity................... 31

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
TA 312 Rev. 21 en 08/2018
Subject to technical modifications! www.sera-web.com 5
EN
1 General
Before commissioning and while operating the sera air driven
diaphragm pump the regulations valid at the place of
installation must be strictly observed.
The sera air driven diaphragm pump is delivered ready for
operation. Carefully read these instructions and especially the
safety instructions herein contained before putting the product
into service.
1.1 Types
1.1.1 APB
sera air driven diaphragm pumps in accordance with directive
2014/34/EU are identified as follows:
II 3G Eex c IIB T4
= Safety Markings according to DIN 40012, Appendix
A
II 3G: Above-floor unit for use in zones where the presence
of gases, vapours or mists during pump operation is
improbable or rare and in any case for a brief time.
Eex-c: Constructional safety device (prEN 13463-5)
IIB: Excludes the following materials:
Hydrogen, acetylene, carbon disulfide
T4: Permissible temperature class.
The temperature classes take into account the various
ignition points of the gases and vapours. This takes
into account the possibility that a hot surface can ignite
an explosive atmosphere.
1.1.2 APE
sera air driven diaphragm pumps in accordance with directive
2014/34/EU are identified as follows:
II 2G Eex c IIB T4
Devices in Group (II), Class (2), Gas, Temperature class (T4)
= Safety Markings according to DIN 40012, Appendix
A
II 2G: Above-floor device for use in zones with
Existing gases, vapours or mists which sometimes
occur during normal operation (EN 1127-1, Abs. 6.3)
Eex-c: Constructional safety device (prEN 13463-5)
IIB: Constructional safety device :
Hydrogen, acetylene, carbon disulfide
T4: Permissible temperature class.
The temperature classes take into account the various
ignition points of the gases and vapours. This takes
into account the possibility that a hot surface can ignite
an explosive atmosphere.
1.2 Type series
1.2.1 Type AP.. - 30 to AP.. – 150
1.2.2 Type AP.. - 340
1.2.3 Type AP.. - 650 and AP.. - 850

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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1.3 Type plate
The type plate includes the type, serial number and the
materials used. These data must be kept available for contact
with sera with respect to the pump.
Type plate (example)
1.4 Operating conditions
•Ambient temperature: +3°C to +65/95°C (depending on
the material)
•Climate: relative air humidity < 90%
•Installation altitude: max 1000m above sea level
•Pump design data for dosing and its temperature can be
found in the order confirmation.
2 Medium
The diaphragm pump is suitable for feeding low-viscosity and
viscous fluids. Please note that the flow capacity is diminished
when using viscous media.
CAUTION!
Flammable liquids may be fed (Note gas group and Ex
zones as per Directive 2014/34/EU.)
APB series for use in Zone 2 only.
APE series may be used also in Zone 1.
The combination of ball seats and valve balls made of
stainless steel is not permitted.
Possible combination:
Ball seats made of stainless steel and valve balls made of
PTFE.
3 Safety Instructions
3.1 Quality Instructions
Read these operating instructions carefully before the unit is
commissioned or serviced. Observance of these operating
instructions and, in particular, safety instructions, helps to
•Avoid danger to staff, machines, and environment.
•Increase the reliability and service life of the equipment
and the entire installation.
•Reduce expenses for repairs and downtimes.
The sera quality management and quality assurance system
for pumps, installations, fittings and compressors is certified
according to DIN EN ISO 9001:2015.
The sera air driven diaphragm pump is compliant with the valid
safety requirements and accident prevention regulations.
CAUTION!
Always keep these operating instructions within reach at
the workplace of the pump!
CAUTION !
Pay attention to the safety data sheet of the medium
conveyed! Take appropriate accident prevention
measures to avoid that operators are endangered by the
used conveying media!
3.2 Marking of Instructions
Information signs which are directly attached to the pump,
such as arrows indicating the direction of rotation or signs for
fluid connections must be adhered to and kept in a legible
condition.
3.3 Qualification and Training of Personnel
The personnel who operate, maintain, carry out inspections or
install the machine must be suitably qualified for their tasks.
The operator has to define clearly the responsibility, and the
supervision of the personnel. If the personnel do not have the
required knowledge, an adequate training is to be carried out
by the operator. Such a training can be realized - if required -
upon order of the operator of the pump by the manufacturer /
supplier. The operator has to ensure furthermore that the
personnel have understood the contents of the operating
instructions completely.
CAUTION !
Personnel assigned to install, inspect and maintain must
have appropriate technical training together with suitable
knowledge in the field of potentially explosive
atmospheres and must be aware of the associated risks!
CAUTION !
Any use beyond the instructions in this manual will
invalidate the required safety and protection properties
with respect to the risk of explosion!
3.4 Dangers in Case of Inobservance of the
Safety Instructions
The inobservance of the safety instructions may result in
personal injuries, hazards to the environment and damages to
the pump.

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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EN
The inobservance of the safety instructions may have the
following consequences:
•Failure of important functions of the pump/unit
•Failure of prescribed methods for maintenance and
upkeep
•Danger to persons by mechanical and chemical
influences
•Danger to the environment due to leakage of hazardous
media
3.5 Safety-Conscious Working
The safety instructions mentioned in these operating
instructions, the national regulations for accident prevention as
well as all internal working-, operating and safety instructions
of the operator must be observed.
3.6 Safety Instructions for the Operator
Leakages (e.g. at the shaft seal) of dangerous media
conveyed (e.g. explosive, poisonous, hot) must be discharged
in such a way, that no dangers arise to persons or
environment. The legal regulations are to be adhered to.
3.7 Safety Instructions for Maintenance,
Inspection and Installation
The operator has to ensure that all maintenance, inspection
and installation tasks are carried out by authorized and
sufficiently qualified personnel, who have carefully read and
understood the operating instructions.
Only those spare parts and wearing parts are to be used that
satisfy the requirements of the relevant operating conditions.
Only loosen screws and connections when the system is not
under pressure.
3.8 Arbitrary Modification and Spare Parts
Production
Modifications of or changements to the pump are only allowed
after previous agreement of the manufacturer. Original spare
parts and accessories that are authorized by the manufacturer
are essential for safety reasons.
Each claim of warranty against the operator becomes void
when using non-authorized parts or modifying the diaphragm
pump without anyone’s permission.
3.9 Inadmissible Operating Procedures
The operational safety of the air driven diaphragm pump can
only be guaranteed in case of proper use in accordance with
section 3.10 of the operating instructions.
CAUTION !
The following uses of the air driven diaphragm pumps are
not permitted:
-Operation as a vacuum pump / generating a vacuum.
-Use as a shut-off fitting.
-Siphoning powdered products.
-Feeding rapidly sedimenting media.
-Feeding media whose chemical composition is not
compatible with the pump materials.
-Feeding foods.
3.10 Proper Use
Use the sera air driven diaphragm pump only for the purpose
indicated in the corresponding confirmation of order.
If the pump is to be used for other purposes, it is required to
consult sera beforehand to settle whether the diaphragm
pump is suitable for the new usage!
Criteria for the proper use of the air driven diaphragm pump
are:
•Consider the characteristics of the medium conveyed
(refer to the safety and product data sheet of the used
medium – the safety data sheet is to be provided by the
supplier/operator of the medium)
•Stability of the materials which have contact with the
medium conveyed
•Operating conditions at the place of installation
•Pressure and temperature of the medium conveyed
•Control air pressure
3.11 Personal Protection for Service and
Maintenance
It is required to consider the recommended safety measures
included in the German ordinance concerning hazardous
materials (§ 14 of Safety Data Sheet) and/or the relevant
national safety regulations applying to the usage of the
medium conveyed.
In case of accidents pay attention to the following possible
emissions:
•Escaping of liquids and vapours
•Noise emissions (noise level)
Emissions must be monitored by control systems of the total
installation.
CAUTION !
Use protective clothing, gloves, breathing mask and
suitable goggles for face protection!
CAUTION !
Personal protective equipment must be provided by the
equipment operator at all times!

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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312 Rev. 21 en 08/2018
EN
4 Transportation and Storage
4.1 General
Before shipment sera products are tested for proper
functioning and quality.
4.2 Transportation
The air driven diaphragm pump is shipped/transported in a
carton or on a pallet depending on the weight
The air driven diaphragm pump
should be transported using an
appropriate lift truck.
4.3 Storage
An undamaged packing protects the pump during subsequent
storage and should only be opened when the diaphragm pump
will be installed.
A proper storage will increase the service life of the diaphragm
pump. Proper storage means avoidance of negative
influences, such as heat, humidity, dust, chemicals etc.
The following storage conditions must be observed:
•Storage place: cool, dry, dust-free and slightly ventilated
•Storage temperature between –10°C and +45°C
•Humidity of air not more than 50%
If these values are exceeded, products made from metal
should be sealed in foil and protected against condensation
water using suitable dessicants.
Do not store solvents, fuels, lubricants, chemicals, acids,
disinfectants and similar together with the product in the
storage room.

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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Subject to technical modifications! www.sera-web.com 9
EN
5 Technical data
5.1 Dimensions
Dimensions
Pump type
Design
m / a
A
B
C
D
E
F
G
AP.. - 30
Plastic
G 1/2
120
165
168
136
120
6
70
AISI316
G 1/2
120
177
171
140
120
6
70
Aluminium
G 1/2
120
164
172
139
124
6
70
AP.. - 45
Plastic
G 1/2
153
247
241
198
168
6,5
85
AISI316
G 1/2
153
230
232
196
164
9
79
Aluminium
G 1/2
153
241
234
198
168
6,5
85
AP.. - 100
Plastic
G 1
170
308
274
219
213
6,5
92
Aluminium
G 1
170
308
277
220
213
8
93
AP.. - 150 Plastic G 1 201 329 325 263 228 8 110
AP.. - 340
Plastic
G 1 1/2
254
493
492
416
326
8,5
138
AISI 316
G 1 1/2
254
475
493
416
327
9,5
138
Aluminium
G 1 1/2
254
479
491
415
327
8
138
AP.. - 650
Plastic
G 2
350
580
726
606
400
14
200
AISI 316
G 2
348
470
704
582
364
11
250
Aluminium
G 2
350
566
621
521
364
12,5
182,5
AP.. - 850
Plastic
G 3
350
585
726
606
400
14
200
AISI316
G 3
350
546
826
682
381
11
300
Aluminium G 3 350 580 806 694 360 15 272

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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EN
5.2 Performance data APB
Type
max.
flow
capacity
max. air
supply
pressure
Noise
Level*
Control air
connection
Suction
and
pressure
connec-
tions
max. suction
height
max. solid
size
Weight
[ltr./min.]
[bar]
[dB(A)]
[m]
dry
[m]
wet
[mm] Material [kg]
APB - 30 30 7 80 G 1/4 G 1/2 5 7 2,0
PP 1,6
PVDF-CFK 1,9
Aluminium 2
AISI 316 3,8
APB - 45 50 7 80 G 3/8 G 1/2 5 7 3,0
PP 3,6
PVDF-CFK 4,2
Aluminium 4,2
AISI 316 6,5
APB - 100 100 7 82 G 3/8 G 1 6 7 4,0
PP 5,0
PVDF-CFK 6,5
Aluminium 6,5
APB - 150 150 7 82 G 3/8 G 1 5 7 4,0
PP 7,5
PVDF-CFK 8,5
APB - 340 340 7 82 G 1/2 G 1 1/2 6 7 6,0
PP 16
PVDF-CFK 20
Aluminium 21
AISI 316 32
APB - 650 650 7 82 G 1/2 G 2 5 7 8,0
PP 54
PVDF-CFK 65
Aluminium 49
AISI 316 54
APB - 850 850 7 82 G 3/4 G 3 5 7 10,0
PP 56
PVDF-CFK 67
Aluminium
AISI 316
* at 5 bar control air pressure and valve balls made of plastic

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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EN
5.3 Performance data APE
Type
max.
flow
capacity
max. air
supply
pressure
Noise level
Control air
connection
Suction
and
pressure
connec-
tions
max. suction
height
max. solid
size
Weight
[ltr./min.]
[bar]
[dB(A)]
[m]
dry
[m]
wet
[mm] Material [kg]
APE - 30 30 7 80 G 1/4 G 1/2 5 7 2,0
PP 1,6
PVDF-CFK 1,9
Aluminium 2
AISI 316 3,8
APE - 45 50 7 80 G 3/8 G 1/2 5 7 3,0
PP 3,6
PVDF-CFK 4,2
Aluminium 4,2
AISI 316 6,5
APE - 100 100 7 82 G 3/8 G 1 6 7 4,0
PP 5,0
PVDF-CFK 6,5
Aluminium 6,5
APE - 150 150 7 82 G 3/8 G 1 5 7 4,0
PP 7,5
PVDF-CFK 8,5
APE - 340 340 7 82 G 1/2 G 1 1/2 6 7 6,0
PP 16
PVDF-CFK 20
Aluminium 21
AISI 316 32
APE - 650 650 7 82 G 1/2 G 2 5 7 8,0
PP 54
PVDF-CFK 65
Aluminium 49
AISI 316 54
APE - 850 850 7 82 G 3/4 G 3 5 7 10,0
PP 56
PVDF-CFK 67
Aluminium
AISI 316
* at 5 bar control air pressure and valve balls made of plastic

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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5.4 Performance curves
CAUTION !
In order to achieve an optimal service life, the operating
parameters of the pumps are to be approximately in the
middle of the performance diagram for normal operation.
=..........................Air supply pressure
=...................Air consumption Nl/min.
(Performance curves of single types see pages 9 – 12.)
CAUTION !
When the suction and pressure lines are separate, the
total capacity may be reduced by more than 50 %.
Solids contents and viscous properties of the medium as well
as greater suction heights lead to a reduction of the capacity.
The performance curves represent average values and may
vary according to pump configuration. The measured values
were determined with submerged suction joints and water at
18 C.

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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EN
5.4.1 Performance curve (AP.. - 30)
5.4.2 Performance curve (AP.. - 45)
Flow rate [litre/minute]
Delivery height [metre]
Delivery height [metre]
Flow rate [litre/minute]
Air supply pressure
Air consumption
Druckluftversorgung
Luftverbrauch

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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5.4.3 Performance curve (AP.. - 100)
5.4.4 Performance curve (AP.. - 150)
Flow rate [litre/minute]
Delivery height [metre]
Druckluftversorgung
Luftverbrauch
Flow rate [litre/minute]
Delivery height [metre]
Air supply pressure
Air consumption

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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EN
5.4.5 Performance curve (AP.. – 200.1)
5.4.6 Performance curve (AP.. - 340)
Flow rate [litre/minute]
Delivery height [metre]
Delivery height [metre]
Druckluftversorgung
Luftverbrauch
Flow rate [litre/minute]
Druckluftversorgung
Luftverbrauch

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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EN
5.4.7 Performance curve (AP.. - 650)
5.4.8 Performance curve (AP.. - 850)
Flow rate [litre/minute]
Delivery height [metre]
Druckluftversorgung
Luftverbrauch
Flow rate [litre/minute]
Delivery height [metre]
Druckluftversorgung
Luftverbrauch

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
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EN
6 Functional description
sera air driven diaphragm pumps are displacement pumps
which can run dry with no harm to the pump.
They are driven by dry, non-lubricated compressed air.
The control valve ensures that the air chambers behind the
diaphragms are alternatingly supplied with compressed air.
One diaphragm is pushed to the front
= Pressure stroke (A)
and the other to the rear
= Suction stroke (B).
The special construction of the control valve ensures that the
pumps are always driven and cannot come to an undesired
stop.
The valve balls open and close in stroke rhythm with the
diaphragms.
Control valve
7 Setup / Installation
7.1 Setup
When setting the air driven diaphragm pumps in place, be sure
that the suction and pressure connections are oriented
properly.
CAUTION !
OUT = Output (pressure side) = TOP !
IN = Inlet (suction side) = DOWN !
When installing the air
driven diaphragm pump,
provide for sufficient
space for later
maintenance work.
7.2 Grounding (APE-series)
Air driven diaphragm pumps made of conductive material,
which should be used for feeding flammable media, must be
sufficiently grounded to prevent the risk of explosion or fire.
CAUTION !
The air driven diaphragm pump must always be grounded
separately from other devices. No ground or improper
grounding renders the required safety regulations with
respect to explosion hazard ineffective.
A high-capacity ground
with appropriate cable
cross-section must be
used!

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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7.3 Connecting the lines
After setting up the air driven diaphragm pump, the suction and
pressure line must be connected to the pump.
CAUTION !
When installing suction and pressure lines, ensure that
the materials used are resistant to the medium.
A shut-off fitting (e.g. ball cock)
must be installed on the pump
output.
The nominal size of the shut-off
fitting may not be smaller than
the nominal size of the pump.
Closing the pressure line
prevents the medium from
running out during maintenance
work, for example.
Install hose nozzles when
connecting continuing lines
(suction and pressure side).
Continuing fittings are not included in the scope of delivery, but
are optionally available with the sera.
CAUTION !
The supply pressure may amount to several bar. The max.
permissible pump pressure however must never be
exceeded!
CAUTION!
The hose lines which are connected should be flexible and
spiral or mesh reinforced.
The inside diameter of the hose line may not be less than
the nominal size at the output of the pump.
Filters and other fittings installed on the suction line must
be correspondingly dimensioned.
When using viscous media, lines with an enlarged cross-
section must be used.
Connect the lines to the
corresponding connection
elements.
Be sure that the suction and
pressure lines are connected
to the correct points on the
pump.
Note instructions attached to
the pump:
Suction side =
Inlet
Pressure side =
Output
The hose lines are to be
attached using appropriate
hose clamps.
CAUTION !
Use of rigid piping may result in strong vibration and
damage to the pump.

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
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EN
7.4 Connecting the compressed air supply
CAUTION !
The control air for supplying the air driven diaphragm
pump must be dry and free of oil and solid particles.
Filter only No oil
A check valve must be installed at the compressed air terminal
of the pump as illustrated.
A manometer must be installed directly before the shut-off
fitting to monitor the supply air pressure while the pump is
running.
CAUTION !
The pressure of the control air should be less than 2 bar
and not greater than 7 bar
As an option, sera offers a complete compressed air supply
unit for the air driven diaphragm pump (see section 13
„Accessories“).
(compressed air supply as per sera Data Sheet No. 10452)
Air driven diaphragm pump
Check valve
Compr. air press.
Shut-off fitting
Filter pressure controller
Recommended diameter for control air pipes:
Pump type
d (internal) x d (external) [mm]
AP.. - 30
6 x 8
AP.. - 45
6 x 8
AP.. - 100
6 x 8
AP.. - 150
6 x 8
AP.. - 340
8 x 10
AP.. - 650
8 x 10
AP.. - 850
8 x 10
Connect the control air lines. Use care when installing to
prevent undesired air loss.
Set the pressure of the control air so that a pressure of from 2
to 7 bar is ensured during pump operation.
•Lower pressures affect optimum function of the
pump.
•Higher pressures will result in diaphragm rupture
and increase the risk of medium leakage.
min. 2 bar
max. 7 bar

Air driven diaphragm pump
Pompe pneumatique à membrane
Operating instructions
Notice de mise en service
20 www.sera-web.com Subject to technical modifications! TA
312 Rev. 21 en 08/2018
EN
When used to pump hazardous media, provide a spray guard
on the air driven diaphragm pump as illustrated.
Under some circumstances it can happen that the medium
leaks out of the pump during and following a fault condition.
Leaked medium must be collected and properly disposed of.
CAUTION !
If a diaphragm rupture is not immediately recognised and
aggressive media are used, it can happen that these
media enter the air circuit and are blown into the
environment through the air outlet (noise absorber).
If not protective measure is installed:
RISK OF SEVERE HEALTH AND ENVIRONMENTAL
CONSEQUENCES!
8 Commissioning
Prior to start-up, check whether the suction and pressure lines
have been properly installed.
Suction side = Inlet
Pressure side = Output
Open the shut-off fittings on the pump (suction and pressure
connection).