HNP Mikrosysteme mzr-11557 Ex Series User manual

Operating manual for micro annular gear pump
mzr-11557 Ex
HNP Mikrosysteme GmbH
Bleicherufer 25
D-19053 Schwerin
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
http://www.hnp-mikrosysteme.de
Last update: March 2019

Impressum
Original instructions
Copyright
HNP Mikrosysteme GmbH
Bleicherufer 25
D-19053 Schwerin
All rights, including translation, reserved.
Without prior explicit written permission of HNP Mikrosysteme GmbH no part
of this manual may be, copied, reproduced or processed.
This manual has been prepared with care. HNP Mikrosysteme does assume no
liability for any errors in this manual and resulting consequences. Likewise, no
liability is assumed direct or subsequent damages arising from an incorrect use
of the devices.
While using micro annular gear pumps, the relevant standards regarding the
specifications of this manual have to be followed.
Subject to change without notice.

Contents Operating manual mzr-11557 Ex
Last update: March 2019 Technical data subject to change without prior notice! i
Contents
1General information 1
1.1 Application scope of the pumps 1
1.2 Product information 2
1.3 Technical data of the micro annular gear pump
mzr-11557 Ex 3
1.4 Measurements 5
1.5 Flow charts 5
1.6 Technical data of the Ex-drive 6
2Safety instructions 9
2.1 Safety symbols in this operating manual 9
2.2 Staff qualification and training 9
2.3 Safety-conscious work 10
2.4 Safety instructions for the operator 10
2.5 Safety instructions for maintenance, check and
assembly of the pump 10
2.6 Unauthorized pump conversions and spare part
manufacture 11
2.7 Improper modes of operation 11
2.8 General safety instructions 11
3Transport and intermediate storage 12
3.1 Shipment of the pumps and protection measures 12
3.2 Transport 12
3.3 Intermediate storage 12
4Description of the micro annular gear pump 13
4.1 Operating principle of the micro annular gear pump 13
4.2 Construction 15
4.3 Construction materials 16
4.4 Liquid supply 17
5Optional modules 18
5.1 Fluidic heating- and cooling module 18
6System integration 21
6.1 Check before the first assembly 21
6.2 Details place of operation 21
6.3 Mounting of the micro annular gear pump 21
6.4 General instructions for the assembly of the liquid
supply network 22
6.5 Electrical Connections 22
6.6 Assembly instruction for tubing and accessories 23
6.7 Filter selection and use 26
7Operation with frequency inverter 27

Contents Operating manual mzr-11557 Ex
ii Technical data subject to change without prior notice! Last update: March 2019
8Startup/shutdown of a mzr-pump 28
8.1 Preparing for operation 28
8.2 Startup of the micro annular gear pump 28
8.3 Re-start after dry run 28
8.4 Operation of the micro annular gear pumps in
different temperature ranges 29
8.5 Monitoring of operation in the temperature range 30
8.6 Flushing procedure after use 30
8.7 Shutdown of the micro annular gear pump 33
8.7.1 Conservation 35
8.7.2 Dismantling of the system 36
8.8 Trouble shooting 37
8.9 Return of the micro annular gear pump to the
manufacturer 37
9Accessories for microfluidic systems 38
10 Non-liability clause 38
11 Problems and their removal 39
12 Maintenance and service 42
12.1 Micro annular gear pumps 42
12.2 Metal bellow-type coupling 42
12.3 Ex-Motor 42
13 EC Directive 43
13.1 Electromagnetic Compatibility (EMC) 44
14 Declaration of conformity - manufacturer’s
declaration 46
15 Contact person 59
16 Legal information 60
17 Safety information for the return of already
employed micro annular gear pumps and
components 61
17.1 General information 61
17.2 Declaration of liquids in contact with the micro
annular gear pump 61
17.3 Shipment 61
18 Declaration of media in contact with the micro
annular gear pump and its components 62
19 Appendix 63

1 General information Operating manual mzr-11557 Ex
Last update: March 2019 Technical data subject to change without prior notice! 1
1General information
This operating manual contains basic instructions to be followed during
integration, operation and maintenance of a mzr®micro annular gear pump.
For this reason it is necessary to read it carefully before any handling of the
device. The present manual should always be kept at the operation site of the
micro annular gear pump.
In case assistance is needed, please indicate the pump type visible on the
housing.
1.1 Application scope of the pumps
The micro annular gear pumps described in this manual are suitable for
continuous delivery and discrete dosage of watery solutions, solvents,
methanol, oils, lubricating liquids, paints and varnishes as well as many other
liquids.
!
If you intend to treat any aggressive, poisonous, or radioactive liquids, you
must conform to safety measures as according to the regulations in force. Any
project concerning handling of corrosive liquids should be previously discussed
with the pump manufacturer.
!
The micro annular gear pumps must not be used for invasive medical
applications, in which the liquid having had contact with the pump is re-
introduced to the body.
!
The micro annular gear pumps must not be used in aircrafts and spacecrafts or
other vehicles without prior consent of the manufacturer.
!
Micro annular gear pumps exclusively are provided for use in the industrial
area. A private use is excluded.
!
The data concerning resistance of the pumps to manipulated liquids is
elaborated according to the best of HNP Mikrosysteme's knowledge. However,
operating parameters varying from one application case to another, no
warranty for this information can be given.
!
Information given in this manual does not release the customer from the
personal obligation to check the integrity, correct choice and suitability of the
pump for the intended use. The use of the micro annular gear pumps should
be conform with technical norms and regulations in force.
If you wish to receive more information than comprised in this operating
manual please contact directly HNP Mikrosysteme.

1 General information Operating manual mzr-11557 Ex
2Technical data subject to change without prior notice! Last update: March 2019
1.2 Product information
The present operating manual is valid for the micro annular gear pump type
mzr-11557 Ex manufactured after 2011 by HNP Mikrosysteme GmbH,
HNP Mikrosysteme GmbH, Bleicherufer 25, 19053 Schwerin, Germany.
The date of release of the present manual figures on the cover.
The micro annular gear pumps described in the operation manual are conform
to the applicable EC standards and are permitted to bear the CE mark.

1 General information Operating manual mzr-11557 Ex
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1.3 Technical data of the micro annular gear pump mzr-11557 Ex
mzr-11557 Ex Unit
[UOM]
Explosion-protection
Ex-certification CE II 2G c IIB T3
Temperature class T3
Installation place Ex-area zone 1, 2
Protection categories
c, d (Ex-motor)
Measurements
Displacement volume 192 µl
Leervolumen 18,2 ml
Internal volume
17,8
ml
Pump head diameter 0,4 ml
Coupling Magnetic coupling
Pump case material alloy C22 (2.4602),
optional: stainless steel 316L
Rotor material partially stabilized ZrO2, optional: tungsten
carbide Ni-based
Shaft sintered silicon carbide
Wetted functional parts Al2O3
Bearing material Al2O3
Static sealing FFKM (Kalrez®Spectrum™ 6375),
optional: FKM, EPDM
Fluid connection 3/8" NPT internal thread, lateral
Weight approx. 25 kg
Length (without fluid
connector)
345 mm
Width 146 mm
Height 224 mm
Specification
Flow rate (at 0 bar) 58 – 1152, (29 - 576 *) ml/min
Smallest dosage volume 100 µl
Max. system pressure
Standard Version
60 bar (840 psi) (inlet pressure+differential
pressure)
bar
Max. system pressure
+p Version
200 bar (2900 psi) (inlet
pressure+differential pressure)
Differential pressure range 0 – 20 bar (290 psi) with 1 mPas
0 – 40 bar (580 psi) with 16 mPas
bar
Speed range
300 – 6000
rpm
Viscosity range of
pumpable liquids
0.3 – 1000 mPas
Precision < 1 % Coefficient of Variation CV
Pulsation 6 %
Liquid temperature
-5 … +40 °C (-20 … +100 °C *)
°C
Ambient temperature -20 … +40 °C (-55 … +60 °C *) °C
Storage temperature -5 … +40 °C
*) Differing specifications on request
Table 1 Technical data micro annular gear pumps mzr-11557 Ex

1 General information Operating manual mzr-11557 Ex
4Technical data subject to change without prior notice! Last update: March 2019
Warning The material properties of a liquid (e.g. viscosity, lubricating property, particle
content, corrosiveness) impacts the technical data and the lifetime of pumps.
Under appropriate conditions the characteristic values may be increased or
decreased.
Warning If you intend to operate the pump out of the range of the above given
specification, please consult the manufacturer. Modifications may be necessary
to ensure successful operation. Otherwise the pump or the system may be
damaged seriously.
Warning Starting the pump in dry condition might lead to damage of functional
components of the pump. Therefore, it is necessary to have the pump primed
(prefilled), and also in further operation please ensure a continuous supply of
liquid. Dry running of the pump has to be avoided.
The user is liable for damages caused by, any consequence with the non-
compliance of this instruction.

1 General information Operating manual mzr-11557 Ex
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1.4 Measurements
4x 720
3/8"-18 NPT
80
85
100
12
118
25
345
±1,5
0,5 0
224
120
100
-
63
Ø146
figure 1 Dimensions of the micro annular gear pump mzr-11557 Ex (total length depends on the motor type)
1.5 Flow charts
Liquid water, 1 mPas Liquid Methanol
0
200
400
600
800
1000
1200
010 20 30
Differential pressure [bar]
Flow rate [ml/min]
6000
5000
4000
3000
2000
1000
Speed [rpm]
Viscosity 1 mPas
Liquid water
0
200
400
600
800
1000
1200
010 20 30 40
Differential pressure [bar]
Flow rate [ml/min]
6000
5000
4000
3000
2000
1000
Speed [rpm]
Viscosity 0,58 mPas
Liquid methanol
Liquid oil, 16 mPas Liquid oil, 100 mPas
0
200
400
600
800
1000
1200
020 40 60 80
Differential pressure [bar]
Flow rate [ml/min]
6000
5000
4000
3000
2000
1000
Speed [rpm]
Viscosity 16 mPas
Liquid oil
0
200
400
600
800
1000
1200
020 40 60 80
Differential pressure [bar]
Flow rate [ml/min]
6000
5000
4000
3000
2000
1000
mzr-11550
Speed [rpm]
Viscosity 100 mPas
Liquid oil
figure 2 Flow charts of the micro annular gear pump mzr-11557 Ex

1 General information Operating manual mzr-11557 Ex
6Technical data subject to change without prior notice! Last update: March 2019
1.6 Technical data of the Ex-drive
The micro annular gear pump mzr-11557 Ex is provided with an actuator
equipped with an Ex-motor. The motor can be ordered with four different
maximum speeds. The AC-motor uses a high dynamic and is recommended for
operation of the micro annular gear pump.
The micro annular gear pump mzr-11507 Ex is provided with an actuator
equipped with an Ex-motor. The motor can be ordered with four different
maximum speeds. The AC-motor uses a high dynamic and is recommended for
operation of the micro annular gear pump.
Data of capacity of CD63M2-2
Type
CD63M2-2 (old CD 63L-2)
Manufacturer ATB Motorentechnik GmbH
Fertigungsstätte Nordenham
Helgoländer Damm 75
D-26954 Nordenham
Germany
Ex-Parameter EX II 2G EEx de IIC T4
Certification PTB 99 ATEX 1051
Pole 2
Power 0.25 kW
Nominal voltage 400 V AC
Nominal frequency 50 Hz
Max. continuous current 0.67 A
Peak current during start IA/IN5.8
Stall torque at 50 Hz 490 mNm
Power by at Hz 150 W
No load speed at 50 Hz 2860 rpm
Operation range 300 – 6000 rpm
Safety IP 55
Weight 16 kg
Ambient temperature range -20 ... +40 °C
Storage temperature +5 ... +30 °C
table 2 Technical data of the motor CD63M2-2 of the micro annular gear pump mzr-11557 Ex

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The 4 poles motor CD 63M2-4 can alternatively be delivered.
Data of capacity of CD 63M2-4
Type CD 63M2-4 (old CD 63L-4)
Manufacturer ATB Motorentechnik GmbH
Fertigungsstätte Nordenham
Helgoländer Damm 75
26954 Nordenham
Ex-Parameter EX II 2G EEx de IIC T4
Certification PTB 99 ATEX 1051
Pole 4
Power
0.18 kW
Nominal voltage 400 V AC
Nominal frequency 50 Hz
Max. continuous current 0.67 A
Peak current during start IA/IN4.7
Stall torque at 50 Hz 790 mNm
Power at 50 Hz 110 W
No load speed at 50 Hz 1415 rpm
Operation range 300 – 6000 rpm
Safety IP 55
Weight 16 kg
Ambient temperature range -20 ... +40 °C
Storage temperature +5 ... +30 °C
table 3 Technical data of the motor CD 63M2-4 (optional)
The 2 poles motor CD 71M1-2 can alternatively be delivered.
Data of capacity of CD 71M1-2
Type CD 71M1-2 (old CD 71K-2)
Manufacturer ATB Motorentechnik GmbH
Fertigungsstätte Nordenham
Helgoländer Damm 75
D-26954 Nordenham
Germany
Ex-Parameter EX II 2G EEx de IIC T4
Certification PTB 99 ATEX 1051
Pole 2
Power 0.37 kW
Nominal voltage
400 V AC
Nominal frequency 50 Hz
Max. continuous current 0.89 A
Peak current during start IA/IN5.2
Stall torque at 50 Hz 740 mNm
Power at 50 Hz 220 W
No load speed at 50 Hz 2800 rpm
Operation range 300 – 6000 rpm
Safety IP 55
Weight
17 kg
Ambient temperature range -20 ... +40 °C
Storage temperature +5 ... +30 °C
table 4 Technical data of the motor CD 71M1-2 (optional)

1 General information Operating manual mzr-11557 Ex
8Technical data subject to change without prior notice! Last update: March 2019
The 4 poles motor CD 71M2-4 can alternatively be delivered.
Data of capacity of CD 71M2-4
Type CD 71M2-4 (old CD 71L-4)
Manufacture ATB Motorentechnik GmbH
Fertigungsstätte Nordenham
Helgoländer Damm 75
D-26954 Nordenham
Germany
Ex-Parameter EX II 2G EEx de IIC T4
Certification PTB 99 ATEX 1051
Pole 4
Power 0.37 kW
Nominal voltage 400 V AC
Nominal frequency 50 Hz
Max. continuous current 0.95 A
Peak current during start IA/IN3.9
Stall torque at 50 Hz 1.9 Nm
Power at 50 Hz 220 W
No load speed at 50 Hz 1380 rpm
Operation range 150 – 3000 rpm
Safety IP 55
Weight 17 kg
Ambient temperature range -20 ... +40 °C
Storage temperature +5 ... +30 °C
table 5 Technical data of the motor CD 71M2-4 (optional)

2 Safety instructions Operating manual mzr-11557 Ex
Last update: March 2019 Technical data subject to change without prior notice! 9
2Safety instructions
Comply with the general safety instructions listed in the safety section as well
as with the special safety instructions listed under the other main sections. All
legal and corporate safety instructions have to be obeyed.
2.1 Safety symbols in this operating manual
The safety instructions listed in this operation manual are specially labeled. It
can cause danger for persons, if they are not complied with.
Danger symbol
!
Non-compliance poses danger for
persons.
High voltage symbol Non-compliance poses danger of
electrical shock.
Ex-symbol These instructions must be complied
with in full for explosion-protection.
The type plate mounted on the pump must be complied with and has to be
maintained in a clearly readable condition.
Please pay attention to items marked with the following symbols. Pump or
system damage is possible if these warnings are ignored.
Warning
Information plates attached directly to the pump head for example name of
the fluid inlet/outlet, sign with the direction of rotation must be observed and
preserved.
2.2 Staff qualification and training
The staff operating, servicing, inspecting and assembling the pumps must
evidence the appropriate qualification for these works. Areas of responsibility
and competence as well as monitoring of the staff must be precisely regulated
by the decision maker. If the personnel do not have the necessary knowledge,
they must be trained and instructed accordingly. If necessary, this can be
implemented by the supplier or the manufacturer on behalf of the operator.
Furthermore, the operator in charge must ensure that the content of the
present manual has been fully understood by the personnel.

2 Safety instructions Operating manual mzr-11557 Ex
10 Technical data subject to change without prior notice! Last update: March 2019
2.3 Safety-conscious work
The safety instructions listed in this operating manual, applicable national
regulations concerning accident prevention as well as internal work, operation
and safety regulations of the operator must be complied with.
2.4 Safety instructions for the operator
The surface temperature of the motor under full load may exceed 60 °C. If
needed, this surface should be protected on site against contact in order to
avoid skin burns.
The drive should be protected against dust, water vapor condensation,
humidity, splash water, aggressive gases and liquids. Please provide for
adequate air ventilation and thus cooling of the motor.
Possible leaks of dangerous liquids (for example from the shaft sealing) should
be guided away in a way not to represent any danger for the personnel and the
environment. The pump should be regularly checked for possible leakage. All
legal requirements in this matter should be followed.
The existing protections against contact for the moving parts of the pump (such
as for example the coupling) must not be removed during operation.
Take care that all risks resulting from the electric energy are excluded. (For
details please refer to the instructions provided by the authorities in charge or
your power supplier.)
Warning
Please insure, that the totality of the liquid supply accessories such as tubes,
hoses, filters etc. are free from dust or dirt particles. Impurities such as metal,
plastic or glass particles may impair or damage the pump leading to its failure.
Warning
Please, operate the pump with a filter featuring 10 µm or smaller pores. It will
protect the pump.
2.5 Safety instructions for maintenance, check and assembly of the pump
As a rule all maintenance work on the device should be performed when the
device is at a standstill. The shutdown procedure described in this manual must
be followed. Pumps delivering liquids hazardous to health must be
decontaminated. Immediately after the work had been completed all safety
equipment and protection measures should be applied.
Before starting the operation, please take into notice the instructions listed in
the chapter 6.
Warning
Should a malfunction of the pump occur, do not dismantle the pump on your
own but contact one of HNP Mikrosysteme's service staff for professional
assistance.

2 Safety instructions Operating manual mzr-11557 Ex
Last update: March 2019 Technical data subject to change without prior notice! 11
2.6 Unauthorized pump conversions and spare part manufacture
Conversions or modification to the device are only permitted with prior consent
of the manufacturer. Original spare parts and accessories authorized by the
manufacturer ensure safety. The use of other parts will annul the liability of the
pump manufacturer for any resulting consequences.
2.7 Improper modes of operation
The safety of operation of the delivered device can only be insured by correct
use, as described in chapter 1. The limit values given in this manual must not be
exceeded in any case.
2.8 General safety instructions
Please observe the following safety instructions
!
The pump may operate at high pressures. For this reason please use only the
delivered accessories and ensure that the employed fittings and tubing have
been prescribed and approved for these pressures.
!
In order to decrease the pressure, provide the system with a pressure control
valve directing the excess liquid to the storage tank or back to the suction side.
In the case of blockage of the pressure side the operating pressure can
multiply, this can lead to the damage of downstream components.
!
At a standstill, the liquid may flow through the pump in the direction of the
falling pressure. In order to avoid this unwanted movement, please integrate
non-return valves (see accessories).
!
Protect the micro annular gear pump and the electric drive against strokes and
shocks.
!
Under normal working conditions the shaft sealing rings integrated in the
pump prevent the liquid from leaking out of the device. The micro annular
gear pumps are "technically leak-proof" however not "hermetically sealed"
which means it may occur that gases or liquids enter to or escape from the
pump.
The allowed operating parameters of the drive should not be exceeded. In
particular an incorrect polarity setting of the supply voltage may lead to
damage of the control unit.
Warning
Please insure, that the totality of the liquid supply accessories such as tubes,
hoses, filters etc. are free from dust or dirt particles. Impurities such as metal,
plastic or glass particles may impair or damage the pump leading to its failure.
Warning
Please operate the pump with a filter featuring 10 µm or smaller pores. It will
protect the pump.

3 Transport and intermediate storage Operating manual mzr-11557 Ex
12 Technical data subject to change without prior notice! Last update: March 2019
3Transport and intermediate storage
3.1 Shipment of the pumps and protection measures
The pumps leaving the factory are secured against corrosion and shocks. The
inlets and outlets of the pumps are protected with plastic plugs in order to
prevent any foreign bodies from penetrating into the device.
3.2 Transport
In order to avoid any damage related to transport, the package must be
protected against shocks. HNP Mikrosysteme guarantees, that all goods leave
the factory in the best condition. Any noticed damage should be reported to
the concerned forwarding agent, authorized dealer or to HNP Mikrosysteme, as
manufacturer.
3.3 Intermediate storage
Following points concerning pump storage should be observed:
−Necessary conservation procedure (see also chapter 8.7.1)
−The protective plugs must be left screwed in
−The pump should not be stored in humid places
−For storage temperature - refer to chapter 1.3 of the present manual

4 Description of the micro annular gear pump Operating manual mzr-11557 Ex
Last update: March 2019 Technical data subject to change without prior notice! 13
4Description of the micro annular gear pump
4.1 Operating principle of the micro annular gear pump
Micro annular gear pumps are positive displacement pumps. They contain two
rotors, bearing slightly eccentrically to each other; an externally toothed internal
rotor and an annular, internally toothed external rotor (see figure 3). Due to
their cycloid indenting, the rotors remain interlocked at any time, forming
during rotation a system of several sealed pumping chambers. As the rotors
revolve around their offset axis, the pumping chambers increase on the
induction (suction) side and simultaneously decrease on the delivery side of the
pump (see figure 4). A homogenous flow is generated between the kidney-like
inlet and outlet.
internal
rotor
external
rotor
delivery sideinduction side
inlet outlet
figure 3 Principle of the micro annular gear pump
figure 4 Operating principle of the micro annular gear pump
In the case of rotary displacement pumps, the delivered amount of liquid may
be easily calculated form the displacement volume Vgof the pump and the
number of revolutions of the rotor n. Displacement volume stands for the
volume of liquid that is moved within one revolution of the rotor. This
relationship is illustrated by the following formula:
nVQ gVol ⋅⋅=
η
The volumetric efficiency
η
Vol shows the relationship between the actual and
the theoretical flow rate. The existing differences result from internal
movement of the liquid during the operation.

4 Description of the micro annular gear pump Operating manual mzr-11557 Ex
14 Technical data subject to change without prior notice! Last update: March 2019
Example: The pump head mzr-11557 Ex has a displacement volume of 192 µl.
On the assumption that the volumetric efficiency is 100%, the flow rate at a
speed of 3000 rpm would be 576 ml/min, according to the above formula.
The following table shows the volumetric displacement, dependent on the
number of revolutions (
η
Vol = 100 %).
RPM Q [ml/min] Q [l/h]
300 57.6 3.456
500 96 5.76
1000 192 11.52
2000 384 23.04
3000 567 34.02
4000 768 46.08
5000
960
57.60
6000 1152 69.12
table 6 Theoretical flow rate of the micro annular gear pump
Pressure generated by the pump is determined by the configuration of the fluid
delivery system and results from both the hydraulic pressure and the hydraulic
resistance (tubing, narrow passes etc.). The volumetric efficiency of a pump
decreases when the differential pressure rises.
The viscosity of the manipulated liquid has an important impact on the
volumetric efficiency. The volumetric efficiency increases for higher viscosity
values because the internal leakage values go down.
Cavitation is an effect which, starting form a certain limit speed value, may
reduce the volumetric efficiency of a pump. In the case of highly viscous liquids
this limit speed value is lower. That happens because of the liquid-specific drop
of vapor pressure in the suction tube which leads to gas formation inside the
pump.
The particularity of the mzr-pumps is their highly precise construction, which
provides for both high operating pressures and a high dosage precision. The
gap between both rotors and between the rotors and the adjacent case parts
lies in the range of a few micrometers. This precision is the key factor enabling
to achieve volumetric efficiency close to 100%.

4 Description of the micro annular gear pump Operating manual mzr-11557 Ex
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4.2 Construction
The micro annular gear pump is composed of the pump head, the coupling
unit, the drive and the bracket (see figure 5).
Motor
Connection Cable
Bracked
Pump head
Liquid inlet
suction side (S)
Liquid outlet
pressure side (D)
figure 5 Design of the micro annular gear pump mzr-11557 Ex

4 Description of the micro annular gear pump Operating manual mzr-11557 Ex
16 Technical data subject to change without prior notice! Last update: March 2019
4.3 Construction materials
The micro annual gear pump mzr -11557 Ex is deliverable in four different
material combinations which are listed in , table 7 and table 8.
Wetted parts mzr-11557-hy mzr-11557-hs
Rotor materials tungsten carbide Ni-based tungsten carbide Ni-based
Control plates tungsten carbide Ni-based tungsten carbide Ni-based
Pump case material alloy C22 (2.4602) stainless steel 316 L
bearing material tungsten carbide Ni-based tungsten carbide Ni-based
shaft material tungsten carbide Ni-based tungsten carbide Ni-based
Static sealing material FFPM (Kalrez®Spectrum™ 6375) FPM
optional: FFPM (Kalrez®Spectrum™
6375)
Distance washer PTFE PTFE
table 7 Construction materials of the wetted parts, rotor material tungsten carbide
Wetted parts
mzr-11557-hcy
Rotor materials tungsten carbide Ni-based
Control plates Al2O3ceramics
Pump case material alloy C22 (2.4602)
bearing material sintered silicon carbide (SSiC),
Al
2
O
3
ceramics
shaft material sintered silicon carbide (SSiC)
Static sealing material FFPM (Kalrez®Spectrum™ 6375)
Distance washer
PTFE
table 8 Construction materials of the wetted parts, rotor material tungsten carbide
!
The resistance of the construction materials to the delivered liquids should be
verified by the operator for each individual application.
Pumps handling non-lubricating liquids have shorter service lives.