Bühler technologies BFP Series User manual

Installation and Operation Instructions
Circulation pumps
BFP
BE370001 ◦ 12/2015
Original instructions

Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
Tel. [phone] / 49 89-0, Fax: [phone] / 49 89-20
Internet: www.buehler-technologies.com
E-Mail: [email protected]
Read this instruction carefully prior to installation and/or use.
Pay attention particularly to all advises and safety instructions
to prevent injuries. Bühler Technologies can not be held re-
sponsible for misusing the product or unreliable function due to
unauthorised modifications.
All rights reserved. Bühler Technologies GmbH 2015
Document information
Document No. ....................................BE370001
Version .................................................. 12/2015

Installation and Operation Instructions
Circulation pumps BFP
Contents
Contents
1 Introduction..........................................................................................................................................................2
1.1 Intended use ..................................................................................................................................................2
1.2 Scope of delivery ...........................................................................................................................................2
2 Safety instructions ..............................................................................................................................................3
2.1 Important advice ............................................................................................................................................3
2.2 General hazard warnings...............................................................................................................................4
3 Transport and storage ........................................................................................................................................5
4 Installation and connection ................................................................................................................................ 6
4.1 Anforderungen an den Aufstellort ..................................................................................................................6
4.2 Installing the unit............................................................................................................................................6
4.2.1 Additional advices for units with pump............................................................................................... 6
4.3 Hydraulic connection .....................................................................................................................................6
4.4 Electrical connections ....................................................................................................................................7
5 Operation and control ......................................................................................................................................... 8
5.1 Before starting ...............................................................................................................................................8
5.2 During starting ...............................................................................................................................................8
6 Maintenance......................................................................................................................................................... 9
7 Service und repair .............................................................................................................................................10
7.1 Troubleshooting ...........................................................................................................................................10
8 Disposal..............................................................................................................................................................11
9 Calculations .......................................................................................................................................................12
9.1 Calculating viscosity ....................................................................................................................................12
9.2 Table of operational viscosity for VG oil ......................................................................................................12
9.3 Calculating the pressure loss.......................................................................................................................12
10 Pressure loss in straight pipes ........................................................................................................................13
11 Appendices ........................................................................................................................................................14
11.1 Technical data .............................................................................................................................................14
11.1.1 BFP 5 / BFP 8 / BFP 15 ................................................................................................................... 15
11.1.2 BFP 30 / BFP 40 .............................................................................................................................. 17
11.1.3 BFP 60 ............................................................................................................................................. 19
11.1.4 BFP 90 ............................................................................................................................................. 21
12 Attached documents .........................................................................................................................................23
KX370001 BFP ...................................................................................................................................................24
RMA - Decontamination Statement..................................................................................................................25
iBE37000112/2015

Installation and Operation Instructions
Circulation pumps BFP
Introduction
1 Introduction
1.1 Intended use
BFP circulation pumps are suited for the transportation of oils in hydraulic and lubrication sys-
tems. Their scope is given by their specifications. The use in other applications is not permitted
without confirmation by Bühler Technologies GmbH.
1.2 Scope of delivery
– 1 x Circulation pump
– Product documentation
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Installation and Operation Instructions
Circulation pumps BFP
Safety instructions
2 Safety instructions
2.1 Important advice
Operation of the device is only valid if:
– the product is used under the conditions described in the installation- and operation instruc-
tion, the intended application according to the type plate and the intended use. In case of un-
authorized modifications done by the user Bühler Technologies GmbH can not be held re-
sponsible for any damage,
– when complying with the specifications and markings on the nameplates.
– the performance limits given in the datasheets and in the installation- and operation instruc-
tion are obeyed,
– monitoring devices and safety devices are installed properly,
– service and repair is carried out by Bühler Technologies GmbH,
– only original spare parts are used.
This manual is part of the equipment. The manufacturer keeps the right to modify specifications
without advanced notice. Keep this manual for later use.
Signal words for warnings
DANGER
Signal word for an imminent danger with high risk, resulting in severe injuries
or death if not avoided.
WARNING
Signal word for a hazardous situation with medium risk, possibly resulting in
severe injuries or death if not avoided.
CAUTION
Signal word for a hazardous situation with low risk, resulting in damaged to
the device or the property or minor or medium injuries if not avoided.
NOTICE
Signal word for important information to the product.
Warning signs
In this manual, the following warning signs are used:
Warning against hazardous situ-
ations
Warning against high pressure
Warning against electrical voltage General notice
Warning against hot surface Disconnect from mains
Warning against environmental haz-
ard
Wear protection gloves
Warning against potentially explos-
ive atmospheres
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Installation and Operation Instructions
Circulation pumps BFP
Safety instructions
2.2 General hazard warnings
Installation of the device shall be performed by trained staff only, familiar with the safety require-
ments and risks.
Check all relevant safety regulations and technical indications for the specific installation place.
Prevent failures and protect persons against injuries and the device against damage.
The operator of the system must secure that:
– safety and operation instructions are accessible and followed,
– local safety regulations and standards are obeyed,
– performance data and installation specifications are regarded,
– safety devices are installed and recommended maintenance is performed,
– national regulations for disposal of electrical equipment are obeyed.
Maintenance, repair:
– Repairs on the device must be carried out by Bühler authorized persons only.
– Only perform modifications, maintenance or mounting described in this manual.
– Only use original spare parts.
When carrying out maintenance works of any kind, the relevant health and safety regulations of
the country of use must be observed.
DANGER Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintention-
ally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
CAUTION Hot surface
Burning hazard
Let the device cool down before maintaining.
CAUTION High pressure
Hazard of injury due to flung off parts or oil, environmental hazard due to oil.
a) Before starting any maintenance or repair to the oil circuit, make sure that
the device is depressurized. This applies to the locking screws as well.
b) Avoid environmental pollution (oil spills) during cleaning or maintenance of
the oil circuit.
c) Use drip pans.
DANGER Potentially explosive atmosphere
Explosion hazard if used in hazardous areas.
The device is not suitable for operation in hazardous areas with potentially ex-
plosive atmospheres.
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Installation and Operation Instructions
Circulation pumps BFP
Transport and storage
3 Transport and storage
The products should be transported only in its original packaging or a suitable replacement. Se-
cure device for transportation.
When not in use, protect the equipment against moisture and heat. Keep it in a covered, dry
and dust-free room at ambient temperature.
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Installation and Operation Instructions
Circulation pumps BFP
Installation and connection
4 Installation and connection
4.1 Anforderungen an den Aufstellort
Unit
The unit must be located in such a way that there is free airflow around and enough room for
servicing and repair. If the device is installed outdoors, regard the protection class of the motor
(IP55 is standard).
4.2 Installing the unit
The unit is mounted with bolts to the mounting points on an adequate support structure. The
connections to the system should be stress and vibration free. The use of flexible hoses is
highly recommended. Please regard that the hose on the suction side is suitable for suction
pressure for ex-ample a mesh wire reinforced type. Avoid leakage in the oil circuit. If necessary,
place drip pans. Comply with local safety requirements and avoid any risk to the environment
from oil spills etc.
4.2.1 Additional advices for units with pump
The distance from the pump to the reservoir should be as short as possible. Especially the suc-
tion pipe should be short and of sufficient inner diameter.
We suggest mounting the pump in the same height as the liquid level. Mounting below the liquid
level is possible as well.
If the aggregate can only be installed above this level, the pump will have a constant suction
pressure of 0.4 bar (atmosphere). Depending on the oil viscosity and temperature, this will res-
ult in a different suction lift. A difference in value of 2 m can be used as a guide.
Until the oil is heated to operating temperature, a suction pressure of 0.6 bar is permissible tem-
porarily.
The diameter of the intake pipe should not be smaller than specified in the data sheet. We re-
commend a max. flow rate of 1.5 m/s.
When first starting up a hydraulic system with a long intake pipe can cause problems due to ex-
cess air in the intake pipe. In this case we suggest filling the suction pipe with oil and using a
suction valve without spring.
Oil is sprayed into the pump housing during the assembly process at our factory. This is neces-
sary to seal the gerator from the housing with an oil film. During extended periods of storage the
pump housing may not have enough oil anymore to create this oil film when switching on the
pump. The pump may then completely lose suction. Before connecting the suction pipe we re-
commend spraying some oil into the pump housing to prevent this.
The pump may be exposed to max. 0.5 bar of pressure on the suction side.
4.3 Hydraulic connection
Hydraulic connection is to be carried out as described in the appended data. All pipes are free
of vibration and current. Generally speaking, connections should be made using tubes.
Contaminated fluids affect the service life of the fluid system. For this reason we advise using
fluids of purity class 23/19/13 (as per ISO 4406).
Should your hydraulic system be equipped with switching valves or check valves, we recom-
mend using a pressure relief valve to protect your system.
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Installation and Operation Instructions
Circulation pumps BFP
Installation and connection
4.4 Electrical connections
DANGER Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintention-
ally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
CAUTION Electrical voltage
Wrong mains voltage may damage the device.
Installation of the device shall be performed by trained staff only. Regard the
voltage given on the type plate. Make sure that the cables have sufficient strain
relief.
Fusing
Fusing has to be done due to local standards!
Polarity
Take care of the directional rotation of the motor. The rotation direction is indic-
ated on the motor housing “M” and an arrow.
The rotational direction is changed by exchanging the connection two phases.
For calculating the correct values of fuses and cross-section of connection wires, refer to local
rules and standards. The motor and, if equipped, starting devices must be connected to protect-
ive earth.
Lead fuses protect the cables in case of a short cut, but are not sufficient to protect the motor
coils from burning due to overload. Therefore, install an adequate motor circuit breaker with
high precision range of adjustment for thermal protection to protect the motor against overload
and operation with two phases.
Adjust the motor circuit breaker according to the nominal value given on the type plate of the
motor. Operation out of the limits for mains voltage and frequency range is prohibited.
Lightning protection must beinstalled by the operator.
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Installation and Operation Instructions
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Operation and control
5 Operation and control
NOTICE
The device must not be operated beyond its specifications.
5.1 Before starting
– Check that all parts are free of damage. Do not put a damaged device into operation.
– Check the correct connections of oil and power circuits according to chapter "Installation and
connection".
– Make sure that all valves or other parts in the cooling circuit, which have to be opened, are
opened.
5.2 During starting
First, check that the pump rotates counter clockwise. The direction is marked on the pump
housing with M and directional arrow.
CAUTION Hot surface
Burning hazard
Let the device cool down before maintaining.
CAUTION High pressure
Hazard of injury due to flung off parts or oil, environmental hazard due to oil.
a) Before starting any maintenance or repair to the oil circuit, make sure that
the device is depressurized. This applies to the locking screws as well.
b) Avoid environmental pollution (oil spills) during cleaning or maintenance of
the oil circuit.
c) Use drip pans.
Noise level
Our pump is supplied with a low noise. If the noise level increases significantly check if the suc-
tion line has the right dimension and if the pump works in the appropriate temp/viscosity range.
Ask Bühler Technologies GmbH for technical advice.
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Installation and Operation Instructions
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Maintenance
6 Maintenance
– Maintenance of the device shall be performed by trained staff only, familiar with the safety re-
quirements and risks.
– Only perform maintenance work described in this manual.
– Regard all relevant safety regulations and internal operating instructions during maintenance.
DANGER Electrical voltage
Electrocution hazard.
a) Disconnect the device from power supply.
b) Make sure that the equipment cannot be reconnected to mains unintention-
ally.
c) The device must be opened by trained staff only.
d) Regard correct mains voltage.
CAUTION Hot surface
Burning hazard
Let the device cool down before maintaining.
CAUTION High pressure
Hazard of injury due to flung off parts or oil, environmental hazard due to oil.
a) Before starting any maintenance or repair to the oil circuit, make sure that
the device is depressurized. This applies to the locking screws as well.
b) Avoid environmental pollution (oil spills) during cleaning or maintenance of
the oil circuit.
c) Use drip pans.
The outer parts of the motor, especially the cooling fins and the cooling ducts must be kept as
clean as possible to ensure sufficient heat dissipation.
Keep in mind the protection class for dust and humidity. Cleaning the device with high pressure
cleaners is only allowed if the motor has the respective protection class.
The motor is equipped with on both sides with sealed ball bearings. The greasing is designed
for the total lifetime. Maintenance (subsequent greasing) is not necessary.
The bearings must be replaced by trained staff only.
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Installation and Operation Instructions
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Service und repair
7 Service und repair
This chapter contains information on troubleshooting and correction should an error occur dur-
ing operation.
Repairs to the unit must be performed by Bühler authorised personnel.
Please contact our Service Department with any questions:
Tel.: [phone] or your agent
If the equipment is not functioning properly after correcting any malfunctions and switching on
the power, it must be inspected by the manufacturer. Please send the equipment inside suitable
packaging to:
Bühler Technologies GmbH
- Reparatur/Service -
Harkortstraße 29
40880 Ratingen
Germany
Please also attached the completed and signed RMA decontamination statement to the pack-
aging. We will otherwise be unable to process your repair order.
You will find the form in the appendix of these instructions, or simply request it by e-mail: ser-
[email protected].
7.1 Troubleshooting
Problem / Failure Possible cause Solution
Oil flow not sufficient – Motor’s rotation direction
wrong
– Correct connection, see Elec-
trical connections
– Motor doesn’t start – Correct connection, see Elec-
trical connections
– Oil flow too low – Correct connection, see Elec-
trical connections
– Oil circuit blocked – Open valves and cocks
– Suction pressure to high,
therefore reduced oil flow.
– Reduce suction height
– Back pressure in the pressure
line too big. Motor will be over-
loaded and motor speed
braked down.
– Choose bigger nominal width
of pressure line
No oil flow – Not enough oil inside pump
housing due to long standstill
or storage, therefore no suc-
tion.
– Refill some oil into the pump
housing before connecting the
suction hose
Pump too noisy – Suction pressure too high – Select suction hose with suffi-
cient diameter
– Reduce suction height
Tab.1: Troubleshooting
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Installation and Operation Instructions
Circulation pumps BFP
Disposal
8 Disposal
Dispose of the parts in such a way that does not present a danger to other people’s heath or to
the environment. Observe the legal requirements in the country of use for the disposal of elec-
trical components and oils and coolants.
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Installation and Operation Instructions
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Calculations
9 Calculations
9.1 Calculating viscosity
Valid for VG-oil between 10 - 100 °C at an exactness from ± 5 %.
Definitions Example: oil VG 46
V40 oil viscosity at 40 °C in cst V40 46 cst
T temperature in °C T 25 °C
ʋ viscosity in cst
9.2 Table of operational viscosity for VG oil
10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C
VG 46 264,45 131,96 73,58 46,00 29,13 20,04 14,43 10,78 8,32
VG 68 444,77 210,85 112,61 68,00 41,63 27,86 19,58 14,32 10,84
VG 220 2.120,17 861,60 404,31 220,00 121,71 74,99 49,00 33,61 24,01
VG 320 3.489,92 1.350,22 607,96 320,00 171,40 102,85 65,66 44,12 30,94
Viscosity given in cst (mm2/s)
9.3 Calculating the pressure loss
Valid for smooth straight piping per meter at laminar current.
Definitions Example: oil VG 46
ʋ Viscosity in cst ʋ 97,35 cst
ρ spec. gravity in kg/dm3ρ 0,8817 kg/dm³
DN tube diameter in mm DN 20 mm
V flow in m/s V 3,18 m/s (60 l/min for tube DN 20)
PV pressure loss in bar
NOTICE
Pressure loss increases significantly for bends and fittings.
It might be necessary in some cases to determine the final shape of the suction
line on site under specific conditions.
Please do not hesitate to contact us for help to calculate the pressure loss of the suction line for
you specific application.
NOTICE
To avoid damage of the cooling system, make sure that the maximum pump
pressure is not exceeded. High pressure may occur if the system is shut off or
throttled at the pressure side.
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Installation and Operation Instructions
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Pressure loss in straight pipes
10 Pressure loss in straight pipes
Pressure loss (bar) in straight pipes per meter at laminar flow with mineral flow:
BFP 8 8 l/min – DN 25
VG 46 VG 68 VG 120 VG 160 VG 220 VG 320 VG 460 VG 680
10 °C 0.03 0.05 0.11 0.17 0.25 0.42 0.68 1.14
20 °C 0.02 0.03 0.05 0.07 0.10 0.16 0.25 0.40
30 °C 0.01 0.01 0.02 0.03 0.05 0.07 0.11 0.17
40 °C 0.01 0.01 0.01 0.03 0.03 0.04 0.05 0.08
50 °C 0.01 0.01 0.01 0.02 0.01 0.02 0.03 0.04
60 °C – 100 °C < 0,03 bar
BFP 15 16 l/min – DN 32
VG 46 VG 68 VG 120 VG 160 VG 220 VG 320 VG 460 VG 680
10 °C 0.02 0.04 0.08 0.12 0.19 0.31 0.50 0.85
20 °C 0.01 0.02 0.04 0.10 0.08 0.12 0.19 0.30
30 °C 0.01 0.01 0.02 0.05 0.04 0.05 0.08 0.12
40 °C 0.01 0.01 0.01 0.01 0.02 0.03 0.04 0.06
50 °C 0.01 0.01 0.01 0.01 0.01 0.02 0.01 0.03
60 °C – 100 °C < 0,02 bar
BFP 30 28 l/min – DN 32
VG 46 VG 68 VG 120 VG 160 VG 220 VG 320 VG 460 VG 680
10 °C 0.04 0.07 0.15 0.22 0.33 0.54 0.88 1.48
20 °C 0.02 0.03 0.06 0.09 0.13 0.21 0.33 0.52
30 °C 0.01 0.02 0.03 0.04 0.07 0.09 0.14 0.22
40 °C 0.01 0.01 0.02 0.02 0.03 0.05 0.07 0.10
50 °C 0.01 0.01 0.01 0.01 0.02 0.03 0.04 0.06
60 °C – 100 °C < 0,03 bar
BFP 60 57 l/min – DN 40
VG 46 VG 68 VG 120 VG 160 VG 220 VG 320 VG 460 VG 680
10 °C 0.03 0.06 0.12 0.18 0.28 0.45 0.74 1.24
20 °C 0.02 0.03 0.05 0.08 0.11 0.18 0.27 0.43
30 °C 0.01 0.01 0.03 0.04 0.05 0.08 0.12 0.18
40 °C 0.01 0.01 0.02 0.02 0.02 0.04 0.06 0.08
50 °C 0.01 0.01 0.01 0.01 0.02 0.02 0.03 0.05
60 °C – 100 °C < 0,03 bar
BFP 90 86 l/min – DN 40
VG 46 VG 68 VG 120 VG 160 VG 220 VG 320 VG 460 VG 680
10 °C 0.05 0.09 0.19 0.27 0.42 0.68 1.11 1.87
20 °C 0.03 0.04 0.08 0.12 0.17 0.26 0.41 0.65
30 °C 0.02 0.02 0.04 0.06 0.08 0.12 0.18 0.27
40 °C 0.01 0.01 0.02 0.03 0.04 0.06 0.09 0.13
50 °C 0.01 0.01 0.01 0.02 0.02 0.03 0.05 0.07
60 °C – 100 °C < 0,04 bar
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Installation and Operation Instructions
Circulation pumps BFP
Appendices
11 Appendices
11.1 Technical data
Technical data
Pump housing: anodised and impregnated cast aluminium
Gerotor: sintered steel
Operating fluids: mineral oils per DIN 51524
Operating oil temperature: max. 80 °C (higher temperatures on request)
Seal: Perbunan (NBR)
Viton (FPM) available on request
Ambient temperature: -15 °C to +40 °C
Electric motors
Voltage / frequency: 230 / 400 V - 50 Hz ± 5 %
276 / 480 V - 60 Hz ± 5 %
Thermal stability: Class of insulation F,
utilisation per class B
Design: three-phase asynchronous squirrel-cage induction
motor
totally enclosed, fan cooled
Protection class: IP55
on request: other voltages
higher motor powers for higher viscosities
UL- or CSA-approved motors
higher protection type
The motors comply with standards
IEC 60034, IEC 60072, IEC 60085
Please also observe the operating manual for the motor! All pumps are supplied with
cable gland inside the motor terminal box. The total length and height of the pump may
vary by motor make.
Pump selection information:
When selecting the pump model, choose the motor output according to the oil viscosity to be
used. Motor output information refers to the maximum oil viscosity at maximum operating pres-
sure.
The BFP 5 to BFP 40 are also available as a special version with a 6 bar internal bypass valve
for protection. This does not change the dimensions.
Installation information:
The pump head of all pumps can be mounted turned in 90° increments to align with the line
routing. Please note the offset from the centre of the motor.
The connection threads are manufactured to ISO 228. The screw-in surfaces are finished and
suitable for the use of soft seals. We recommend using screwed plugs per ISO 1179-2.
Please note:
Especially note the dimension of the suction pipe. The cross-sections should not be smaller
than specified. In most cases, loud noise indicates the cross-section was reduced too much.
Please refer to the notices in the operating instructions.
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Installation and Operation Instructions
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Appendices
11.1.1 BFP 5 / BFP 8 / BFP 15
BFP 5-6-0.55kW BFP 8-4-0.75kW BFP15-4-0.75kW BFP15-4-1.1kW BFP15-4-1.5kW
Item number 3705055 3708075IE2 3715075IE2 3715110IE2 3715150IE2
Motor power 0.55 kW 0.75 kW 0.75 kW 1.1 kW 1.5 kW
Max. oil viscosity 1500 cSt 1500 cSt 300 cSt 1500 cSt 2000 cSt
At max. working pres-
sure
10 bar 10 bar 10 bar 10 bar 10 bar
Number of poles 6 4 4 4 4
Max. current consump-
tion (400V / 50Hz)*
approx. 1.8 A approx. 2.1 A approx. 2.1 A approx. 2.7 A approx. 3.5 A
Nominal delivery
volume*
5.8 cm³/U 5.8 cm³/U 11.7 cm³/U 11.7 cm³/U 11.7 cm³/U
5.5 l/min 8 l/min 16 l/min 16 l/min 16 l/min
Suction side connec-
tion
G1/2-DN16 G3/4/DN20 G1 1/4-DN32 G1 1/4-DN32 G1 1/4-DN32
Pressure side connec-
tion
G3/8-DN12 G1/2-DN16 G1-DN25 G1-DN25 G1-DN25
Suction pressure
for all models tempor-
arily up to
-0.4 bar -0.4 bar -0.4 bar -0.4 bar -0.4 bar
-0.6 bar
Acoustic power per
ISO3744*
52 dB(A) 56 dB(A) 59 dB(A) 59 dB(A) 59 dB(A)
Weight 10.8 kg 10.8 kg 10.9 kg 13.2 kg 16.2 kg
Dimensions
A 96.5 96.5 96.5 96.5 96.5
B 308 308 308 346 368
C 80 80 80 118 140
D 82 82 70 70 70
E 71 71 60 60 60
* For 60 Hz versions please multiply the delivery volume by a factor of 1.2. The acoustic emis-
sion increases by approx. 3 dB.
100 C
80
B
A
77
149
125
ø10
Inlet Outlet
D E
200
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Installation and Operation Instructions
Circulation pumps BFP
Appendices
Flow rate
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Installation and Operation Instructions
Circulation pumps BFP
Appendices
11.1.2 BFP 30 / BFP 40
BFP 30-4-0.75kW BFP 30-4-1.1kW BFP30-4-1.5kW BFP40-4-1.1kW BFP40-4-1.5kW
Item number 3730075IE2 3730110IE2 3730150IE2 3740110IE2 3740150IE2
Motor power 0.75 kW 1.1 kW 1.5 kW 1.1 kW 1.5 kW
Max. oil viscosity 100 cSt 300 cSt 1000 cSt 100 cSt 700 cSt
At max. working pres-
sure
6 bar 8 bar 10 bar 6 bar 8 bar
Number of poles 4 4 4 4 4
Max. current con-
sumption
(400V / 50Hz)*
approx. 2.1 A approx. 2.7 A approx. 3.5 A approx. 2.7 A approx. 3.5 A
Nominal delivery
volume*
20.4 cm³/U 20.4 cm³/U 20.4 cm³/U 30.6 cm³/U 30.6 cm³/U
29 l/min 29 l/min 29 l/min 42 l/min 42 l/min
Suction side connec-
tion
G1 1/4-DN32 G1 1/4-DN32 G1 1/4-DN32 G1 1/4-DN32 G1 1/4-DN32
Pressure side connec-
tion
G1-DN25 G1-DN25 G1-DN25 G1-DN25 G1-DN25
Suction pressure
for all models tempor-
arily up to
-0.4 bar -0.4 bar -0.4 bar -0.4 bar -0.4 bar
-0.6 bar
Acoustic power per
ISO3744*
61 dB(A) 61 dB(A) 61 dB(A) 62 dB(A) 62 dB(A)
Weight 11 kg 13.2 kg 16.2 kg 13.7 kg 16.7 kg
Dimensions
A 95 95 95 104.5 104.5
B 306 344 366 354 376
C 80 118 140 118 140
* For 60 Hz versions please multiply the delivery volume by a factor of 1.2. The acoustic emis-
sion increases by approx. 3 dB.
100 C
80
B
A
77
149
125
ø10
Inlet Outlet
70 60
200
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Installation and Operation Instructions
Circulation pumps BFP
Appendices
Flow rate
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