Vogelsang IQ112 Series User manual

2016-09-21
*WBV.PU.004.EN*
WBV.PU.004.EN V3.2
1/62
2016-09-21
*WBV.PU.004.EN*
WBV.PU.004.EN V3.2
Operating Instructions
Rotary Lobe Pump
IQ112

Issuer
2
WBV.PU.004.EN V3.2
Original operating instructions
Issuer
Issuer
Hugo Vogelsang Maschinenbau GmbH
Holthöge 10-14
49632 Essen/Oldb.
Phone: [phone]
Fax: [phone]
vogelsang-gmbh.com
[e-mail]
In the absence of express, written authorisation from the issuer, the reproduction or partial reproduction of
this document in any form is prohibited.
We reserve the right to make technical modifications to the diagrams and information presented in this
document in the event that such modifications become necessary for the enhancement of the machine.
© 2016 Hugo Vogelsang Maschinenbau GmbH
Registered trademarks of Vogelsang
Vogelsang, RotaCut, PreMix, HiFlo, ACC, CFC, BioCrack, XTill, EnergyJet, BioCut, CC series, PreMix,
ProTerra and VarioCrop are registered trademarks of Hugo Vogelsang Maschinenbau GmbH.
The registered trademarks are not always designated with an ®symbol in this document.

Table of contents
WBV.PU.004.EN V3.2
3
Dear customer,
in every one of our products, you will see the entirety of our competence and our power of innovation at
work. Each product is developed and built so that you can work more successfully.
We call it quite simply: ENGINEERED TO WORK
If you want to know more about our company or put forward requests or suggestions, a wealth of information
can be found at www.vogelsang.info
Table of contents
Issuer .................................................................................................................................................................2
Table of contents..............................................................................................................................................3
1User information.....................................................................................................................................6
1.1 Using the operating instructions.......................................................................................................... 6
1.2 Presentation convention...................................................................................................................... 6
1.3 Explanation of symbols ....................................................................................................................... 7
1.4 Machine versions described here ....................................................................................................... 8
2EC declaration ........................................................................................................................................9
3Specifications .......................................................................................................................................10
3.1 Material description for rotary lobes.................................................................................................. 11
3.2 Name plate........................................................................................................................................ 12
4Safety.....................................................................................................................................................13
4.1 Operator’s responsibilities................................................................................................................. 13
4.2 Personnel qualification...................................................................................................................... 14
4.2.1 Qualifications ............................................................................................................................... 14
4.2.2 Fields of activity ........................................................................................................................... 14
4.3 Intended use...................................................................................................................................... 15
4.4 General safety notes......................................................................................................................... 15
4.5 Safety devices................................................................................................................................... 16
4.5.1 EMERGENCY STOP shutdown (main switch)............................................................................ 16
4.5.2 Maintenance and repair switch.................................................................................................... 16
4.6 Warning and safety stickers on the machine .................................................................................... 17
5Transport, storage................................................................................................................................18
5.1 Transport........................................................................................................................................... 18
5.2 Storage.............................................................................................................................................. 19
6Assembly...............................................................................................................................................20
6.1 Installation in pipes............................................................................................................................ 20
6.2 Pipes ................................................................................................................................................. 21
6.3 Direction of flow................................................................................................................................. 23
6.3.1 Pump with motor drive................................................................................................................. 23
6.3.2 Pump systems ............................................................................................................................. 23
6.4 Pump connection............................................................................................................................... 24
6.5 Base, support surface for machine ................................................................................................... 25
6.5.1 Machine without base.................................................................................................................. 25
6.5.2 Machine and motor on base C (with coupling) ............................................................................ 25
6.5.3 Coupling orientation..................................................................................................................... 26
6.5.4 Machine and motor on base B (belt drive)................................................................................... 27
6.5.5 Machine on hand cart .................................................................................................................. 27
6.6 Drive.................................................................................................................................................. 28
6.6.1 Electric drive ................................................................................................................................ 29
6.6.2 Hydraulic drive............................................................................................................................. 30
6.6.3 Combustion engine drive............................................................................................................. 31
6.7 System control................................................................................................................................... 32
7Start-up..................................................................................................................................................33

Table of contents
4
WBV.PU.004.EN V3.2
8Maintenance..........................................................................................................................................35
8.1 Buffer chamber.................................................................................................................................. 35
8.1.1 Pressurisable buffer fluid tank ..................................................................................................... 36
8.1.2 Buffer fluid –type......................................................................................................................... 39
8.1.3 Buffer fluid –amount.................................................................................................................... 39
8.1.4 Buffer fluid –inspection and change ........................................................................................... 39
8.2 Draining and cleaning the buffer chamber........................................................................................ 40
8.3 "Dry buffer chamber" sealing system................................................................................................ 41
8.4 Gearbox............................................................................................................................................. 42
8.4.1 Gear oil - grade............................................................................................................................ 42
8.4.2 Gear oil - quantity ........................................................................................................................ 42
8.4.3 Gearbox oil –inspection and change .......................................................................................... 42
8.5 Oils .................................................................................................................................................... 43
9Repair ....................................................................................................................................................47
9.1 Conversion and spare parts.............................................................................................................. 47
9.2 Opening the IQ cover........................................................................................................................ 48
9.3 Rotary lobe change........................................................................................................................... 49
9.4 Change of wear plates ...................................................................................................................... 51
9.5 Change of cartridge mechanical seal................................................................................................ 52
9.6 Closing the IQ cover.......................................................................................................................... 54
10 Troubleshooting ...................................................................................................................................55
10.1 Troubleshooting........................................................................................................................... 55
10.2 Help.............................................................................................................................................. 55
11 Putting out of operation and disposal................................................................................................57
12 Maintenance plan .................................................................................................................................59
12.1 Maintenance instructions............................................................................................................. 59
12.2 Maintenance intervals.................................................................................................................. 59
12.3 Additional maintenance intervals for pumps with belt drive......................................................... 60
13 Service plan ..........................................................................................................................................61

Table of contents
WBV.PU.004.EN V3.2
5
Table of figures
Fig. 1: Name plate ........................................................................................................................................... 12
Fig. 2: Positions of the warning and safety labels ........................................................................................... 17
Fig. 3: Transport aids....................................................................................................................................... 18
Fig. 4: Installation variants............................................................................................................................... 20
Fig. 5: Long suction lines................................................................................................................................. 22
Fig. 6: Drive units............................................................................................................................................. 23
Fig. 7: Sight glass (A) ...................................................................................................................................... 23
Fig. 8: QuickFlange assembly ......................................................................................................................... 24
Fig. 9: Orientation procedure........................................................................................................................... 26
Fig. 10: Vent screw on the gearbox (removing the seal)................................................................................. 29
Fig. 11: Buffer fluid tank................................................................................................................................... 36
Fig. 12: Filling/draining the buffer chamber..................................................................................................... 37
Fig. 13: Installation example - dry buffer chamber .......................................................................................... 41
Fig. 14: Gear oil change .................................................................................................................................. 42
Fig. 15: Opening/closing the IQ cover ............................................................................................................. 48
Fig. 16: Rotary lobe change............................................................................................................................. 50
Fig. 17: Installation position of the curved wear plate ..................................................................................... 51
Fig. 18: Cartridge mechanical seal on the gearbox......................................................................................... 53
Relevant documents
•Dimension sheet / drawing
•Characteristic line
•EC declaration of conformity
Optional:
•Technical information on drive system
•Technical information on safety devices
Please read and adhere to the information and instructions in the relevant documents.

User information
6
WBV.PU.004.EN V3.2
1 User information
1.1 Using the operating instructions
These instructions contain information concerning operating elements, handling, start-up and maintenance
and repair work, as well as the relevant specifications.
The operating instructions are a component of the machine.
IMPORTANT
READ CAREFULLY BEFORE USE
Read the operating instructions thoroughly. All of the points presented in these instructions must be
understood and observed by those persons responsible for the installation, operation, maintenance and
repair of the machine.
Vogelsang does not accept any liability for damage resulting from failure to comply with these operating
instructions.
KEEP FOR FUTURE REFERENCE
Please keep the manual ready at hand to ensure easy access to the necessary information at all times.
Additional copies of the manual are available upon request. 
1.2 Presentation convention
Presentation
Meaning
•
Listing

Sublisting
1. 
2.
Carry out these actions in the described sequence
Fig. "Caption"
Reference to a figure for additional information
Chapter "Chapter heading"
Reference to a chapter for additional information
Table "Table caption"
Reference to a table for additional information
"Relevant document"
Reference to a document for additional information
 Technical support
Contact our technical support

User information
WBV.PU.004.EN V3.2
7
1.3 Explanation of symbols
The following symbols and signal words are used in this manual:
1If personal protective equipment is needed to work with and on the machine, that is indicated
by the following symbols:
Indicates that protective gloves must be worn for subsequent tasks.
Indicates that protective goggles must be worn for subsequent tasks.
Indicates that safety shoes must be worn for subsequent tasks.
2This symbol draws attention to the use of tools:
Tools, mounting devices and resources required for the following work tasks.
3General notices and information about environmental protection are marked by these symbols:
NOTE
Refers to further information and useful notes.
ENVIRONMENTAL PROTECTION
Refers to measures to be observed to prevent damage to the environment.

User information
8
WBV.PU.004.EN V3.2
4Safety notes are introduced by these symbols and words:
CAUTION
Refers to a dangerous situation in which failure to comply with the safety note could result in light injuries.
WARNING
Refers to a dangerous situation in which failure to comply with the safety note could result in death or serious
injuries.
DANGER
Refers to an (extremely) dangerous situation in which failure to comply with the safety note will result in
death or serious injuries.
RISK OF ELECTRIC SHOCK
Touching live parts leads to dangerous electrocution.
This can result in electric shock, burns or death.
ATTENTION
Refers to possible damage to machinery or property as a result of failure to comply with this note.
1.4 Machine versions described here
In Chapter "Installation", the following optional machine versions are described:
Machine version
Chapter reference
•With or without pump connectors
Chapter "Pump connector"
•On a base or without a base
Chapter "Base, support surface for
machine"
•With the following drive options:
Chapter "Drive"
Electric drive
Hydraulic drive
Combustion engine drive
•With or without system control
Chapter "System control"
The machines listed in these operating instructions are subject to the
Machinery Directive (2006/42/EC), see sample printout in Chapter "EC declaration".

EC declaration
WBV.PU.004.EN V3.2
9
2 EC declaration
(sample printout)
EC Declaration of conformity
According to Machinery Directive 2006/42/EC; annex II A
Manufacturer: Hugo Vogelsang
Maschinenbau GmbH
Holthöge 10-14
D-49632 Essen/Oldb.
We hereby declare that the machine described below meets the basic health and safety requirements
of the Machinery Directive 2006/42/EC in its design and construction and in the version marketed by us.
If a change is made to the machine without our agreement, this declaration loses its validity.
Product: Rotary lobe pump
Applied harmonised standards:
DIN EN ISO 12100:2010
DIN EN 1037:1995+A1:2008
DIN EN 349:1993+A1:2008
DIN EN ISO 13857:2008
DIN EN 809:2012
Applied national standards and technical specifications:
DIN EN 82079-1:2012
DIN 4844-1:2012
DIN 4844-2:2012
DIN ISO 3864-1:2012
The person authorized to compile the technical documentation is:
Hugo Vogelsang Maschinenbau GmbH; Holthöge 10-14; 49632 Essen (Oldb.), Germany
49632 Essen, 2015-09-30
Harald Vogelsang (Managing Director)

Specifications
10
WBV.PU.004.EN V3.2
3 Specifications
Gemeinde
IQ112 series
Max. speed: 900 min-1
Max. differential
pressure**
Theoretical
operating torque***
Displacement
Theoretical volume flow*
Size
[l]
[l/min]
[m3/h]
[bar]
[Nm]
81
1.02
918
55.08
7
165
114
1.44
1298
77.88
5
160
* All values refer to the theoretical volume flow. The actual volume flow is lower; it depends on the
operating conditions in each case.
** Valid only for short operation times. For continuous operation, please contact our service department.

The service life of the lobes is reduced by high temperatures, especially in combination with high
pressure. Observe the material-specific differential pressure limits Notice.
*** Theoretical operating torque with max. differential pressure and water, designed for NBR elastomers.
ATTENTION
Material-specific differential pressure limits
Rotary lobe made of FPM: max. 6 bar
Maximum free passage: Ø 33 mm
ATTENTION
When using the pump for a highly viscous medium, the pump speed must be reduced according to the
material's viscosity, to prevent the intake flow from breaking off on the suction side (cavitation protection).
Weights and dimensions
For the machine's weight and dimension specifications, see "Dimension sheet"

Specifications
WBV.PU.004.EN V3.2
11
3.1 Material description for rotary lobes
Marking on
the rotary
lobe
Material
Elastomer-based
Resistant
up to
Pump medium
Characteristics
NBR
NBR
Nitrile butadiene
rubber
80 °C *
Sewage sludge,
petrol,
oil, grease, diesel oil,
spindle oil
Oil-resistant
NBR
NBR, white
Nitrile butadiene
rubber
80 °C *
Oil, butter, linseed
and olive oil, lard
Food grade
SBR
SBR
Styrene butadiene
rubber
60 °C
Liquid manure
Wear-resistant
SL
EPDM-SL
(EPDM-
Sewage-Line)
Ethylene
propylene
diene M-class
rubber
80 °C *
Water, liquid manure,
sewage sludge,
biogas substrate
Not oil and grease
resistant,
water resistant,
steam resistant
AL
EPDM-AL
(EPDM-Aqua-
Line)
Ethylene
propylene
diene M-class
rubber
80 °C *
Drinking water
Drinking water
approved **,
not oil or grease-
resistant,
water-resistant,
steam-resistant
EPDM
EPDM, white
Ethylene
propylene
diene M-class
rubber
80 °C *
Water, mash, slightly
acidic products
Food grade
PU
PU
(Werobust )
Polyurethane
vulcanised
50 °C
Abrasive medium
Wear-resistant
PUR
PUR
Polyurethane
cast
80 °C
Abrasive medium
Highly wear-resistant
CSM
CSM
(Hypalon)
Chloro-sulfonyl
polyethylene
rubber
80 °C *
Petrol, oil, acids,
alkali solutions
Wear-resistant,
acid-resistant and
alkali-resistant
FPM
FPM
Fluorocarbon
gum
80 °C *
Solvents, salt water,
oil, petrol, acids
Acid-resistant and
alkali-resistant
Steel lobes
(pure material)
1.4571
150 °C
200 °C*
Pure medium
Chemistry
High temperatures,
high chemical
resistance
Steel rotary
lobes
(pure material)
C45 nitrided
150 °C
200 °C*
Pure medium
petrochemical
High temperatures,
chemical resistance
Table: Material description
*consult Vogelsang in the event of the combination of "high differential pressure and high temperatures" 
** drinking water approvals: KTW, DVGW-Arbeitsblatt, W 270, WRAS, BELAQUA
Please consult us 
•If you require combinations with high differential pressure and high temperatures –(see * in Table
"Material description").
•With solid material lobes with media containing foreign matter
•If you should discover discrepancies or if precise specifications have not been provided for the
medium
ATTENTION
Risk of premature wear on rotary lobes made of FPM in the event of excess pump pressure!
The material 'FPM' for rotary lobes is usable only up to max. 6 bar differential pressure.
Please see Chapter "Specifications".

Specifications
12
WBV.PU.004.EN V3.2
3.2 Name plate
The name plate (1) contains the following details:
•Vogelsang address
•CE marking
•Pump type
•Serial number
•Year of construction
Fig. 1: Name plate

Safety
WBV.PU.004.EN V3.2
13
4 Safety
This section gives you an overview of important safety aspects needed to ensure optimum protection of
personnel and to ensure safe and trouble-free operation.
Failure to comply with the instructions and safety information specified in this manual may result in serious
hazards.
In the event of any abnormalities and/or signs relating to the safety of the product supplied by Vogelsang,
please contact us without delay via:
[e-mail]
4.1 Operator’s responsibilities
The machine is used commercially. The operator of the machine is therefore subject to the statutory
occupational safety regulations.
In addition to the safety information provided in this manual, the relevant safety, accident prevention and
environmental protection requirements for the area in which the machine is used must be complied with.
This includes the following, in particular:
•The operator shall ensure that all persons who handle the machine have read and understood this
manual. If necessary, the operator shall train personnel and inform them of possible hazards. To
improve tracking, we recommend creating a training log.
•The operator shall clearly regulate and define responsibilities for transport, installation, start-up,
operation, maintenance, repair, cleaning, troubleshooting, shutdown and disposal.
•The operator shall instruct personnel to always wear the necessary protective equipment and shall
monitor usage.
The operator is responsible for ensuring that the machine is always in perfect technical condition.
The following therefore applies:
•The operator shall ensure that maintenance intervals described in this manual are complied with and
are documented in the service plan.
•The operator shall have all safety devices checked at regular intervals to ensure that they are fully
functioning and complete.

Safety
14
WBV.PU.004.EN V3.2
4.2 Personnel qualification
WARNING
Risk of injury due to insufficient qualification!
Handling the machine improperly can result in serious injuries and property damage.
For this reason, all activities must be performed by qualified technical personnel only.
Only persons who can be expected to perform their work reliably are permitted as personnel. Persons whose
ability to respond is impaired, for example due to drugs, alcohol or medication, are not approved.
4.2.1 Qualifications
The following qualifications are required for different fields of activity:
Instructed person
Has been instructed by the operator to perform the tasks for which the instructed person is responsible and
has been informed of possible hazards in the event of improper behaviour.
Qualified technical personnel
Is able, due to his or her specialist training, skills, experience and knowledge of the relevant provisions, to
perform the work for which he or she is responsible, and is able to identify and avoid possible hazards
independently.
Qualified electrician
Is able, due to his or her specialist training, skills, experience and knowledge of the relevant standards and
provisions, to perform work on electrical systems, and is able to identify and avoid possible hazards
independently.
4.2.2 Fields of activity
•The activities described in this manual may be performed by instructed persons unless explicit
mention is made of a special qualification that is necessary.
•If activities may only be performed by qualified technical personnel, this fact will be clearly stated in
this manual. Safety devices may only be connected and checked by qualified technical personnel.
•Electrical work and work on the electrical system may only be performed by qualified electricians.
Vogelsang must always be consulted prior to any system-specific activities that are not described in this
manual. 
Training in the activities described in this manual may be provided by Vogelsang on request. 

Safety
WBV.PU.004.EN V3.2
15

4.3 Intended use
The Vogelsang rotary lobe pump (hereinafter "pump" or "machine") is a self-priming positive displacement
pump for pumping fluids ranging from water-like to highly viscous (hereinafter "medium").
The medium can be chemically neutral, acidic or alkaline. It can be loaded with solid particles and/or gas.
The maximum free passage specified in Chapter "Specifications" must not be exceeded.
The pump is designed to pump the medium specified by the customer.
For a different medium, or if the pump was not designed for a specific application, the materials of the wetted
pump components must be checked for suitability. In some cases the pump must be reconfigured.
The pumps described in these operating instructions are not intended for use in potentially explosive
atmospheres.
Any other use is contrary to the intended use. Vogelsang is not liable for any damage resulting from such
incorrect use.
4.4 General safety notes
WARNING
Risk of injury (catching, crushing, collision) due to rotating rotary lobes if the machine starts up
unexpectedly!
Before starting maintenance and repair work (opening covers, disassembling connectors) and before
troubleshooting, switch the machine off and secure it against being switched on again.
WARNING
Risk of injury from medium escaping under high pressure!
If the maximum differential pressure is exceeded, machine parts may burst and medium may spray out.
•The maximum differential pressure must not be exceeded Chap. "Specifications".
•Observe and implement the recommendations in Chap. "Installation in pipes".
•Protect the machine or system against overpressure. For example, the following monitoring devices
can be used:
A current limiter on the motor
A pressure relief valve
Cut-off with a pressure control switch
An overload coupling
WARNING
Skin and eye irritation caused by contact with hazardous working materials or media!
All work on the machine can lead to contact with working materials or media.
•Personnel must wear suitable protective clothing.
•The operator must inform his or her staff about any potentially hazardous substances in working
materials or media.

Safety
16
WBV.PU.004.EN V3.2
CAUTION
Risk of burning due to exposed host surfaces!
If the medium temperature is greater than 60 °C or the pump experiences dry running, the pump housing,
the connectors or the pipes can become very hot.
At high speeds or high differential pressure, the gearbox housing can also become very hot.
•Avoid (accidental) contact with hot surfaces.
•Avoid dry running of the pump, e.g. by means of dry running protection via
Temperature monitor
Level measurement
Flow measurement
ATTENTION
Risk of frost!
To protect the pump against damage caused by frozen medium, drain it when there is a risk of frost.
•Drain the pump by running the pump in either direction (forward or reverse), until all liquid is drained
out of the pump. You can use drain cocks in the connectors to do this.
•For complete draining of the pump chamber, remove the IQ cover, Chapter "Opening the IQ cover".
•Before start-up, refill with fluid.
4.5 Safety devices
4.5.1 EMERGENCY STOP shutdown (main switch)
For shutdown in the event of an emergency, an emergency stop must be present and freely accessible at all
times.
4.5.2 Maintenance and repair switch
DANGER
Danger if the machine starts up unexpectedly!
To safely exclude the possibility of unexpected machine start-up in accordance with DIN EN 1037, a
maintenance and repair switch must be installed in the immediate vicinity of the electric drive so that the
electrical power can be safely isolated for maintenance purposes.
The maintenance and repair switch must be secured in its OFF position to prevent it being switched back on
again, using a padlock for example.
NOTICE
Switching “OFF” in points 1 and 2 means “all-pole disconnection”.
WARNING
Qualified technical personnel must connect and check the safety devices on a regular basis for proper
function, especially after performing maintenance and repair work and before start-up.

Safety
WBV.PU.004.EN V3.2
17
4.6 Warning and safety stickers on the machine
Warning and safety stickers on the machine
•provide important information for the safe operation of the machine. Observing the stickers is for the
safety of persons who work with and on the machine.
•must remain legible, remove any contamination, if required.
•may not be removed and must be replaced immediately if damaged or lost.
Fig. 2: Positions of the warning and safety labels
(example only, the position of the stickers can vary depending on the size)
VAU.133
Before machine start-up, operating instructions must be
read!
VAU.138
Buffer or quenching fluid tank
VAU.115
(Only used for pumps with a mechanical
seal consisting of the material combination
SiSiC-SiSiC)
(To avoid adhesion of the mechanical seal faces this pump needs to be
rotated (at least one revolution) every two months when not in service!)

Transport, storage
18
WBV.PU.004.EN V3.2
5 Transport, storage
5.1 Transport
Fig. 3: Transport aids
WARNING
Risk of crushing or concussion due to falling machine!
The machine may start to sway or topple when it is transported, loaded or set down. To ensure safe
transport, note the following:
•Loading and transporting may only be carried out by qualified technical personnel. In other words: The
operator of a crane or forklift must be able to show an appropriate authorisation.
•Cranes and hoists as well as forklifts must be designed for the weight of the transport units.
•Standing under raised loads is prohibited. Have people leave the danger area.
•Permissible transport options for the machine: suspended, or bolted onto a Euro-pallet.
•In the case of suspended transport of the machine:
Use the lifting eye bolts and/or lifting lugs fitted for hoisting gear and securely fasten the lifting
tackle. Use the lifting eye bolts on the pumps only for lifting and transporting the pump without
attachments or system components; for example, motor, connectors or base.
If need be, dismount the buffer fluid tank before transport and then assemble it again after
transport.

Transport, storage
WBV.PU.004.EN V3.2
19
5.2 Storage
Complete pumps, cartridge mechanical seals, individual O-rings and seal components
If not stored and handled properly, the physical characteristics of products made of rubber may change.
Possible consequences include excessive hardening, softening, permanent deformation, peeling, cracking or
other surface damage.
Long-term storage is possible under the following conditions (longer than 6 months to a maximum of 5
years):
•The storage area should be dry (relative humidity below 65%) and the temperature should be between
5 °C and 30 °C.
•The pump chamber can be sealed with a preservative that is compatible with the material of the rotary
lobes and gaskets.
•The products should be protected against light, especially direct sunlight and strong artificial light with
a high ultraviolet component.
After a storage period of five years or more and before start-up we recommend:
•Checking and renewing (if necessary) all wetted gaskets and rotary lobes.
•Changing the gear oil and the buffer fluid.
For pumps with a mechanical seal that has SiC-SiC mating materials, the shaft must be turned (at least one
revolution) at least every two months so that the sealing surfaces of the mechanical seal rings do not stick
together.

Assembly
20
WBV.PU.004.EN V3.2
6 Assembly
6.1 Installation in pipes
•The pump may be installed either upright or at 45°. If it is installed at 45°, the buffer chamber and gear
box drain holes should face downwards.
•When installing the pump, ensure that there is easy access for maintenance work. If the screw plugs
for draining the gear oil and buffer fluid are not easy to access, discharge hoses may be used (part no.
PBT.013 and/or PBT.014).
•Ensure that the pump is installed without tension and that no tension can develop during operation
either.
Upright
45°
Fig. 4: Installation variants