Sulzer VMS User guide

www.sulzer.com
VMS Vertical Multistage Pumps
1557-00
02/2022
EN
Installation, Operating and Maintenance Instructions

2 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
Sulzer reserves the right to alter specications due to technical developments!
2
Vertical Multistage Pumps
VMS VMS H
Contents
1 Manual introduction ............................................................................................................................... 4
1.1 Prefac e ...................................................................................................................................................... 4
1.2 Icons and symbols .................................................................................................................................... 4
2 Identification, service, and technical support..................................................................................... 5
2.1 Obtaining data and information from VMS and VMS H6 pumps .............................................................. 5
2.2 Shaft seal material code ........................................................................................................................... 6
2.3 Current ...................................................................................................................................................... 6
2.3.1 Nominal current VMS................................................................................................................................ 6
2.3.2 Maximum current VMS H6........................................................................................................................ 6
2.4 Supplementary documentation ................................................................................................................. 7
3 Warranty .................................................................................................................................................. 7
3.1 Terms of warranty ..................................................................................................................................... 7
4 Safety and environment ......................................................................................................................... 8
4.1 General .................................................................................................................................................... 8
4.2 Users......................................................................................................................................................... 8
4.3 Safety provisions....................................................................................................................................... 8
4.3.1 Labels on the product ............................................................................................................................... 8
4.4 Safety precautions .................................................................................................................................... 8
4.4.1 During normal use..................................................................................................................................... 8
4.4.2 During installation, maintenance and repair.............................................................................................. 9
4.5 Environmental aspects.............................................................................................................................. 9
4.5.1 General ..................................................................................................................................................... 9
4.5.2 Dismantling ............................................................................................................................................... 9
5 Pump introduction.................................................................................................................................. 9
5.1 Description of the product......................................................................................................................... 9
5.2 Model key ............................................................................................................................................... 10
5.3 Ecodesign ............................................................................................................................................... 10
5.4 Intended use ........................................................................................................................................... 10
5.5 Operation ................................................................................................................................................ 11
5.6 Measuring, draining and venting............................................................................................................. 11
5.7 Modular selection.................................................................................................................................... 11
5.8 Working range......................................................................................................................................... 12
5.8.1 Detailed working range VMS .................................................................................................................. 13
5.8.2 Detailed working range VMS H 6............................................................................................................ 13
5.9 Seal code ................................................................................................................................................ 13

Installation, Operating and Maintenance Instructions (Original Instructions) 3
VMS Vertical Multistage Pumps
3
5.10 Explosion safety...................................................................................................................................... 14
5.10.1 General ................................................................................................................................................... 14
5.10.2 Indication................................................................................................................................................. 14
5.10.3 Medium temperature ............................................................................................................................... 14
5.10.4 Commissioning (checklist) ...................................................................................................................... 15
6 Transport ............................................................................................................................................... 17
6.1 Transport ................................................................................................................................................. 17
6.2 Storage.................................................................................................................................................... 17
6.2.1 Inspection during storage........................................................................................................................ 17
7 Installation instructions....................................................................................................................... 18
7.1 Setting up the pump................................................................................................................................ 18
7.1.1 Indic ators................................................................................................................................................. 19
7.1.2 Install bypass .......................................................................................................................................... 19
7.2 Mounting a motor on the pump ............................................................................................................... 20
7.2.1 Install the motor on pumps supplied without motor................................................................................. 21
7.3 Electrical installation ............................................................................................................................... 23
7.4 Commissioning........................................................................................................................................ 24
7.4.1 In an open or closed circuit with sufficient supply pressure.................................................................... 24
7.4.2 In an open circuit with a liquid level lower than the pump....................................................................... 24
7.4.3 After an extended period of non-operation or storage............................................................................ 24
8 Operation............................................................................................................................................... 25
8.1 Operation ................................................................................................................................................ 25
9 Maintenance .......................................................................................................................................... 25
9.1 Introduction ............................................................................................................................................. 25
9.2 Lubrication............................................................................................................................................... 25
9.3 Maintaining the pump for an extended period of non-operation ............................................................. 25
9.4 Torques of coupling shell - pos. 914.01................................................................................................... 25
10 Failures .................................................................................................................................................. 26
10.1 Failure table ............................................................................................................................................ 26

4 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
4
1 Manual introduction
1.1 Preface
This manual contains important information for reliable, proper and e󰀩cient operation. Compliance with the
operating instructions is of vital importance to ensure reliability and a long service life of the product and to
avoid any risks.
The rst chapters contain information about this manual and safety in general. The following chapters provide
information about normal use, installation, maintenance and repairs of the product.
• Make yourself familiar with the content.
• Accurately follow the directions and instructions.
• Never change the sequence of the operations to be carried out.
• Keep this manual or a copy of it together with the logbook in a xed place near the product which can be
accessed by all personnel.
1.2 Icons and symbols
In this manual and in all accompanying documentation the following icons and symbols are used.
Presence of dangerous voltage.
Operations or procedures, if carried out without caution, may cause personal injury or
damage to the product.
Remarks with respect to the environment.
ATTENTION! Non-observance may result in damage to the unit or negatively aect its performance.

Installation, Operating and Maintenance Instructions (Original Instructions) 5
VMS Vertical Multistage Pumps
5
2 Identication,service,andtechnicalsupport
2.1 Obtaining data and information from VMS and VMS H6 pumps
The nameplate indicates the type series / size, main operating data, and identication number. Please quote
this information in all queries, repeat orders, and particularly when ordering spare parts. If you need any
additional information or instructions exceeding the scope of this manual or in case of damage, please contact
Sulzer Customer Service.
40/10-2
0414352098
SN 01/2017 1234567-123
Made in NL
PO 600149091
Q/H
n.fix
Eff.
Seal
P/T
Conn.
40.8 m
3
/h / 195 m
2960rpm
75.1% (MEI>=0.70)
Code 14 E
PN25 -20/+120
o
C
PN16/25 NW80
ID
37kW(30.5kW)50Hz
V
Sulzer Pump Solutions Ireland Ltd.
www.sulzer.com
Clonard Road,
Wexford, Ireland.
29
VMS CF
1558-00
40/10-2
0414352098
SN 01/2017 1234567-123
Made in NL
PO 600149091
Q/H
n.fix
Eff.
Seal
P/T
Conn.
40.8 m
3
/h / 195 m
2960rpm
75.1% (MEI>=0.70)
Code 14 E
PN25 -20/+120
o
C
PN16/25 NW80
ID E
Frame 200(30.5kW)50Hz
Sulzer Pump Solutions Ireland Ltd.
www.sulzer.com
Clonard Road,
Wexford, Ireland.
29
VMS CF
1559-00
Figure 1. Pump with motor Figure 2. Pump without factory mounted motor
H
1560-00
Figure 3. Duty point
Table 1. Nameplate description
Indication Meaning
VMS CF 40/10-2 Model key
37 kW (30.5 kW) Installed motor power (required power @ max. curve)1 2
Frame 200 Motor frame size
50 Hz Nominal frequency
Q340 m3/h Optimum capacity running at xed speed (see Fig. 3, ”Duty point”)
H 195 m Optimum head running at xed speed (see Fig. 3, ”Duty point”)
n x. 2960 rpm Rotation speed indication at which Q/H are given
E󰀨. 75.1% (MEI>=0.70) E󰀩ciency (Minimum E󰀩ciency Index)
Seal. Code 23 E Mechanical seal surface code (see Table 7, ”Seal code”)
E Easy access Seal construction type:
F = Fixed
E = Easy access
C = Cartridge
P/T PN 25 -20/+120 °C Maximum pressure at mentioned temperature range4
Conn. PN16/25 NW80 Pressure class connection and connection size
ID 290414352098V Pump ID
SN WW / YYYY 1234567-123 Production week/year and production serial number > as built le
PO XXXXXXXXX Purchase order number
1. For pumps without a factory mounted motor: frame size.
2. When the installed motor power is less than the required power the pump is limited in it’s operating range. Consult your sales representative for details.
3. Optimum capacity of the hydraulics, restricted operating range (note 2.) not taken into account.
4. At lower pressure, a higher temperature is allowed (please consult your supplier).

6 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
6
2.2 Shaft seal material code
Table 2. Shaft seal material code
Code acc. to EN 12756 Description Material Note
B
Q1
Q6
U3
eCarb-B
Spring loaded ring Carbon graphite
Silicon carbide
Tungsten carbide
Ca
SiC
TuC
Resin impregnated
Sintered pressureless
CrNiMo-binder
A
B
Q1
Q6
U3
V
eSic-Q7
Seat ring Carbon graphite
Carbon graphite
Silicon carbide
Tungsten carbide
Al-oxide
Ca
Ca
SiC
TuC
ALO
Antimony impregnated
Resin impregnated
Sintered pressureless
CrNiMo-binder
>99%
E
P
V
X4
Elastomers EPDM
NBR
FPM
HNBR
EPDM
NBR
FPM
HNBR
Ethylene propylene rubber
Nitrile-butadiene-rubber
Fluor carbon rubber
Hydrogenated nitrile rubber
G
F
Spring CrNiMo steel
CrNi steel
G
F
Other metal parts CrNiMo steel
CrNi steel
Information about seal combinations, types, pressure and temperature (see Table 7, “Seal code”).
2.3 Current
2.3.1 Nominal current VMS
The nominal allowable current of the motor is stated on the motor plate. This shows the nominal working range
of the motor and can be used to protect the motor.
Measuring the actual current of the pump during operation can be used to pre-set the motor protection switch to
protect the pump/motor combination.
This current value can also be used to determine the proper electrical equipment such as variable frequency
drive, main switch, wiring diameter etc.
Not only the motor, but also the pump has to be protected in its application.
2.3.2 Maximum current VMS H6
The maximum allowable current of the motor is mentioned as “I.max.” on the motor plate. This maximum
allowable current shows the maximum working range of the motor and can be used to protect the motor.
Be careful in using it this way, because, not only the motor, but also the pump has to be
protected in its application.
On the pump nameplate (sleeve sticker) this “required motor current” can be mentioned and it can be used to
pre-set the motor protection switch to protect the pump/motor combination.
This current value can also be used to determine the proper electrical equipment such as variable frequency
drive, main switch, wiring diameter etc.

Installation, Operating and Maintenance Instructions (Original Instructions) 7
VMS Vertical Multistage Pumps
7
2.4 Supplementary documentation
Apart from this manual, the documentation given below is also available:
Table 3. Supplementary documentation
Pump Document Code
VMS and VMS H General terms of delivery 119 / 1998
VMS Technical data 50 Hz 310 190034 001
Technical data 60 Hz 310 190035 001
VMS H Technical data 50/60 Hz 97004434
See also www.sulzer.com
3 Warranty
3.1 Terms of warranty
The warranty period is settled by the terms of your contract or at least by the general terms and conditions of
sales.
ATTENTION! Modications or alterations of the product supplied are only permitted after
consultation with the manufacturer. Original spare parts and accessories authorized
by the manufacturer ensure safety. The use of other parts can invalidate any liability
of the manufacturer for consequential damage.
ATTENTION! The warranty relating to the operating reliability and safety of the product supplied is
only valid if the product is used in accordance with its designated use as described
in the following sections of this manual. The limits stated in the data sheet must not
be exceeded under any circumstances.
The warranty becomes invalid if one or more of the points below occur:
• The buyer makes modications himself.
• The buyer carries out repairs himself or has them carried out by a third party.
• The product has been handled or maintained improperly.
• The product has non original Sulzer spare parts tted.
Sulzer repairs defects under warranty when:
• They are caused by aws in the design, the material, or the production.
• They are reported within the warranty period.
Other terms of warranty have been included in the general terms of delivery, which are available upon request.

8 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
8
4 Safety and environment
4.1 General
This Sulzer product has been developed using state-of-the-art technology; it is manufactured with utmost care
and subject to continuous quality control. Sulzer does not accept any liability for damage and injury caused by
not observing the directions and instructions in this manual, or in cases of carelessness during the installation
procedure, use, and maintenance of the product.
Non-compliance with safety instructions can jeopardize the safety of personnel, the environment, and the
product itself. Non-compliance with these safety instructions will also lead to forfeiture of any and all rights to
claims for damages.
For example, in particular, non-compliance can result in:
• Failure of important pump/system functions.
• Failure of prescribed maintenance and servicing practices.
• Injury to persons by electrical, mechanical, and chemical e󰀨ects.
• Hazard to the environment due to leakage of hazardous substances.
• Explosions.
Depending on specic activities, extra safety measures may be required. Contact Sulzer if a potential danger
arises during use.
ATTENTION! The owner of the product is responsible for compliance with the local safety
regulations and internal company guidelines.
ATTENTION! Not only must the general safety instructions laid down in this chapter on safety be
complied with, but also the safety instructions outlined under specic headings.
4.2 Users
All personnel involved in the operation, maintenance, inspection, and installation of the product must be fully
qualied to carry out the work involved and be aware of all applicable responsibilities, authorisations and
supervisions. If the personnel in question are not already in possession of the required know-how, appropriate
training and instruction must be provided. If required, the operator may commission the manufacturer / supplier
to take care of such training. In addition, the operator is responsible for ensuring that the contents of the
operating instructions are fully understood by the responsible personnel.
4.3 Safety provisions
The product has been designed with the greatest possible care. Original parts and accessories meet the safety
regulations. Modications in the construction, or the use of non-original parts, may lead to a safety risk.
ATTENTION! Make sure that the product operates within its working range. Only then is the
product performance guaranteed.
4.3.1 Labels on the product
The icons, warnings, and instructions applied to the product are part of the safety provisions. The labels may
not be removed or covered. Labels must remain legible during the entire life of the product. Replace damaged
labels immediately.
4.4 Safety precautions
4.4.1 During normal use
• Contact the local electricity company for questions about the power supply.
• Protect the parts that can become hot, making direct contact impossible.
• When applicable, always place undeformed coupling guards to protect the coupling, before putting the pump
into use. Make sure that the coupling guards are never in contact with the rotating coupling.
• Always close the terminal box of the motor.
• Always close the control panel where applicable.

Installation, Operating and Maintenance Instructions (Original Instructions) 9
VMS Vertical Multistage Pumps
9
4.4.2 During installation, maintenance and repair
Only authorised personnel may install, maintain, and inspect the product and repair electrical components.
Observe the local safety regulations.
Before installation, maintenance and repairs, always disconnect the energy supply to the
productrst.Securethisdisconnection.
Surfaces of a pump can be hot after continuous operation.
Make sure that no one can be near rotating components when starting a pump.
Handle a pump with dangerous liquids with the utmost care. Avoid danger for persons
or the environment when repairing leakages, draining liquids, and venting. It is strongly
recommended to place a leakage tray under the pump.
Immediately following completion of the work, all safety-relevant and protective devices must
be re-installed and/or re-activated.
Please observe all instructions set out in the chapter “Commissioning” before returning the
product to service.
4.5 Environmental aspects
4.5.1 General
Sulzer products are designed to function in an environmentally friendly way during their entire lifetime.
Therefore, when applicable, always use biodegradable lubricants for maintenance.
Always act according to the laws, by-laws, regulations, and instructions, with respect to
health, safety, and the environment.
4.5.2 Dismantling
The owner is responsible for the dismantling and environmentally friendly disposal of the product.
Ask at the local government about the re-use or the environmentally friendly processing of
discarded materials.
5 Pump introduction
5.1 Description of the product
The vertical, single, or multistage centrifugal pumps are designed for pumping clean, or slightly aggressive,
watery mediums.
Suction and discharge connections of the pump are in-line, making the pump easy to install.
The hydraulic assembly is driven by an electric motor.
All hydraulic parts of the pump are made of stainless steel.

10 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
10
5.2 Model key
Table 4. Model key example
VMS S F 40 /10 -L
Label VMS Product label
Material / Construction C Cast iron pump foot and top bracket hydraulics; 1.4301 / AISI 304
All wetted parts; stainless steel 1.4301 / AISI 304
M All wetted parts;stainless steel 1.4301 / AISI 304 with closed coupled motor
S All wetted parts; stainless steel 1.4401 / AISI 316
Connections E Male thread (with non-return valve insert)
Oval ange with female thread
FRound ange
V Victaulic connections
T Tri-clamp connections
Size 40 Size (capacity in m3/h at Qopt)
Stages /10 Number of stages
/10 -2 Number of stages of which one stage with reduced head
/10 -L Number of stages of which the rst stage has a “Low NPSHr” impeller
VMS H 6 -200
Label VMS
H Vertical pump in superior grade AISI 316 (1.4401) 40 Bar
Connections Round anges DIN or ASME
6 Size (capacity in m3/h at Qopt)
-200 Number of stages (x10)
5.3 Ecodesign
Product information according to Regulation 547/2012 and Directive 2009/125/EC ”Ecodesign Directive” (water
pumps with maximum shaft power rating of 150 kW, applies only to water pumps marked with the Minimum
E󰀩ciency Index MEI, see pump nameplate):
• Minimum E󰀩ciency Index: see nameplate, legend for nameplate. See Table 1, “Nameplate description”.
• The reference value MEI of a water pump with the best e󰀩ciency is 0.70.
• Year built: see nameplate, legend for nameplate. See Table1, “Nameplate description”.
• Manufacturer’s name or trademark, o󰀩cial registration number and place of production: See manual or order
documentation.
• Information about type and size of the item: see Table 1, “Nameplate description”.
• Performance curves of the pump, including e󰀩ciency characteristics: see documented curve.
• The e󰀩ciency of a pump with a corrected impeller is usually lower than that of a pump impeller with a full
diameter. A pump with a corrected impeller is adapted to a certain duty point, thereby reducing the energy
consumption. Minimum E󰀩ciency Index (MEI) refers to the full impeller diameter.
• The operation of this water pump at di󰀨erent operating points can be more e󰀩cient and more economical
when it is controlled, for example using a variable speed controller which adjusts the pump operation to the
system.
• Information for disassembly, recycling or disposal after the nal shutdown: see sub chapter 4.5.2,
“Dismantling”.
• Information about the e󰀩ciency reference value or MEI = 0.7 (0.4) benchmark index for the pump on the basis
of the pattern in the picture, please visit: http://www.europump.org/e󰀩ciencycharts.
5.4 Intended use
VMS pumps are suited for the transport and increase of pressure of cold and hot water without wear to parts
when used within the indicated working range. The transport of liquids with a di󰀨erent viscosity or density than
water is possible as well. Please take into account the possible adjusted motor power which might be required
for this. Ask Sulzer or your distributor for advice.

Installation, Operating and Maintenance Instructions (Original Instructions) 11
VMS Vertical Multistage Pumps
11
Any other or further use of the pump is not in conformity with its intended use. Sulzer does not accept any
liability for any damage or injury that results from this. The pump is produced in accordance with the current
standards and guidelines. Use the pump only in a perfect technical state, in conformance with the intended use
described below.
The ”intended use” as laid down in ISO 12100:2010 is the use for which the technical product is intended
according to the specications of the manufacturer. The use of the product has been described in the sales
brochure and in the user manual. Always observe the instructions given in the user manual. When in doubt the
product must be used as becomes evident from its construction, version and function.
5.5 Operation
The rotating impeller causes the pressure at the inlet of the impeller to
drop. This decrease in pressure creates the ow through the suction
connection (A). Every stage (B) consists of an impeller and a di󰀨usor.
The capacity of the pump is determined by the size of the passageway of
the stage. The pressure of the stage is determined by the diameter of the
impeller.
Because of the modular type of construction it is possible to choose the
number of impellers most suited to the required duty point. After leaving
the last impeller the medium ows between the pump stages and the outer
sleeve (C), and exits the pump at the discharge connection (D).
5.6 Measuring, draining and venting
The pump is provided with plugs for measuring, draining and venting.
Connection (E) is meant to drain the inlet part of the pump, or to measure
the inlet / suction pressure using a G ¼"connection.
Connection (F) is meant to drain the outlet part of the pump, or to measure
the discharge pressure using a G ¼"connection.
Connections (G) are meant to vent the pump system when the pump is not
in operation, or to measure the discharge pressure of the pump using a
G 3/8"connection.
D
A
EF
G
G
BC
1561-00
Figure 4. VMSF 85
5.7 Modular selection
For an optimal match with the application, the pump is assembled out of modules which are selected depending
on their specications.
The basic modules are:
• Basic pump model: denes the capacity and head, the basic material and allowable pressures and
temperatures.
• Connections: denes the connection size, pressure class and allowable temperatures.
• Sealings: denes material of the elastomers, shaft seal type and allowable pressures and temperatures.
• Electric motor: denes all requirements of the motor such as size, power, supply voltage, frequency and
possible motor accessories.

12 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
12
5.8 Working range
The working range depends on the basic hydraulic design, the type of connection, and sealings. The module in
the pump with the strictest specication determines the allowable pressure and temperature of the medium in
the pump. The general working specications can be summarised as follows:
Table 5. Generalworkingrangespecication
Pump type VMS Note 1. Avoid freezing the pump.
2. If the ambient temperature exceeds this value, or the
motor is located more than 1000 m above sea level,
the motor cooling is less e󰀨ective and could require an
adapted motor power. Please contact your supplier for
more detailed advice.
3. Deviation in viscosity and/or density could require an
adapted motor power. Please contact your supplier for
more detailed advice.
4. Pumps that are intended for 50 Hz operation, may not
be connected to 60 Hz power supply.
5. Frequent start/stops, in particular in combination
with higher pressure di󰀨erences (Δp), may result in a
shortened product lifetime. Consult your supplier for
such applications.
6. Only the noise emission of the motor is documented.
Ambient temperature [°C] -20 up to 40 1, 2
Minimum inlet pressure NPSHreq. + 1 m
Viscosity [cSt] 1 - 100 3
Density [kg/m3] 1000 - 2500 2
Cooling Forced motor cooling
Minimum frequency [Hz] 30
Maximum frequency [Hz] 60 4
Maximum number of starts See motor data sheet 5
Noise emission See motor data sheet 6
Allowable size of solids pumped 5 μm to 1 mm
ATTENTION! The temperature dierence between the medium and the pump should never exceed
60 °C. To avoid any chance of a thermal shock the pump must be lled / heated up
slowly in any case where the dierence between the pump and the medium is more
than 30 °C.
For minimum/maximum ow at medium temperature of 20 °C see Table 6, ”Minimum/maximum capacity (Qmin/
max)”; for higher temperatures see Figure 5, ”Minimum capacity vs. temperature (in % of Q optimum)”.
Table 6. Minimum/maximum capacity - Qmin/max [m3/hr]
Size 2 4 6 10 15 25 40 60 85 125 H6
50 Hz
2-pole Min. 0.2 0.4 0.6 1.1 1.6 2.8 4.0 5.3 8.5 30.0 0.8
Max. 3.3 6.5 9.0 13.2 22.5 35.0 54.0 57.0 110.0 160.0 8.6
4-pole Min. - - - 0.5 0.8 1.4 1.9 2.6 4.3 15.0 -
Max. -- - 6.6 11.3 17.5 27.0 38.0 53.9 80.0 -
60 Hz
2-pole Min. 0.2 0.5 0.8 1.3 2.0 3.1 4.9 6.4 10.2 36.0 0.7
Max. 4.0 7.8 10.8 15.8 27.0 42.0 65.0 92.0 132.0 192.0 8.6
4-pole Min. -- - 0.6 1.0 1.6 2.3 3.2 5.1 18.0 -
Max. -- - 7.9 13.5 21.0 32.5 46.0 65.1 96.0 -
0
5
10
15
20
25
30
35
40 Q [%]
40 50 60 70 80 90
T[ºC]
100 110 120 130 140
1562-00
Figure 5. Minimum capacity vs. temperature (in % of Q optimum)

Installation, Operating and Maintenance Instructions (Original Instructions) 13
VMS Vertical Multistage Pumps
13
5.8.1 Detailed working range VMS
For the actual working range of the pump see the nameplate.
5.8.2 Detailed working range VMS H 6
Pressure: 40 bar, temperature 120 °C.
5.9 Seal code
Table 7. Seal code
Seal
code
Shaft seal type Mechanical
seal material
Shaft seal
materials1
Pressure class
shaft seal
Temperature
range shaft seal
Approvals
11 MG12-G60 B Q1 E GG Ca/SiC/EPDM PN10 -20/+100 °C
12 MG12-G60 B Q1 V GG Ca/SiC/FPM PN10 -20/+120 °C
13 RMG12-G606 Q1 B E GG SiC/Ca/EPDM PN25 -20/+100 °C WRAS
14 RMG12-G606 Q1 B V GG SiC/Ca/FPM PN25 -20/+120 °C
15 RMG12-G606 U3 U3 X4 GG TuC/TuC/HNBR PN25(PN16) -20/+120(140) °C
16 RMG12-G606 U3 U3 V GG TuC/TuC/FPM PN25(PN16) -20/+120(140) °C
17 M37GN2/16-00-R U3 B V GG TuC/Ca/FPM2PN40 -20/+120 °C
18 RMG12-G606 U3 B E GG TuC/Ca/EPDM PN25(PN16) -20/+120(140) °C
19 M37GN2/16-00-R U3 B E GG TuC/Ca/EPDM PN40 -20/+120 °C
203H7N Q1 A E GG SiC/Ca/EPDM PN40(PN25) -20/+120(140) °C
213H7N Q1 A V GG SiC/Ca/FPM PN40(PN25) -20/+120(140) °C
223H7N Q1 A X4 GG SiC/Ca/HNBR PN40(PN25) -20/+120(140) °C
23 RMG12-G606 Q1 B E GG SiC/Ca/EPDM PN25 -20/+100 °C
24 MG12-G60 Q1 Q1 V GG SiC1/SiC1/FPM PN10 -20/+120 °C
28 MG12-G60 Q1 Q1 X4 GG SiC1/SiC1/HNBR PN10 -20/+120 °C
29 MG12-G60 Q1 Q1 E GG SiC1/SiC1/EPDM PN10 -20/+100 °C
304MG12-G60 Q1 Q1 V GG SiC1/SiC1/FPM PN10 -20/+120 °C
31 107-L60 BVPFF Ca/Ce/NBR PN10 -15/+100 °C
32 107-L60 BVEFF Ca/Ce/EPDM PN10 -15/+100 °C WRAS
334RMG12-G606 Q1 B E GG SiC/Ca/EPDM PN25 -20/+100 °C WRAS
345RMG12-G606 DST Q1 B E FF SiC/Ca/EPDM PN25 -20/+100 °C
35 RMG12-G6 eCarb-B eSic-Q7 E GG eCa/eSic/EPDM PN25 -20/+100 °C WRAS
36 MG12-G6 eCarb-B eSic-Q7 V GG eCa/eSic/FPM PN25 -20/+100 °C
37 RMG12-G606 U3 A V GG TuC/Ca/FPM PN25(PN16) -20/+120(140) °C
384RMG12-G606 U3 U3 V GG TuC/TuC/FPM PN25(PN16) -20/+120(140) °C
394RMG12-G6 eCarb-B eSic-Q7 E GG eCa/eSic/EPDM PN25 --20/+100 °C WRAS
1. Apart from the shaft seal, other sealings might be assembled with di󰀨erent allowable conditions. If in doubt consult your sales supplier.
2. VMS H 6 only.
3. Mechanical seal can withstand -30 / +140 °C @ PN40.
4. Only for seal options.
5. Equivalent of seal code 13, but with AISI 304 spring material.

14 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
14
5.10 Explosion safety
ATTENTION! This sub-chapter contains fundamental information which has to be taken into
consideration when installing the pump with ATEX permission in a hazardous
environment.
ATTENTION! Because of the probable creation of sparks during loosening and tightening of nuts
and bolts, the pump(s) should not be opened, closed, assembled or disassembled, in
an explosive hazardous environment.
ATTENTION! When there is an ATEX sticker on the pump, the pump must only be used for
pumping a medium with a conductivity higher than 50 pS/m.
5.10.1 General
Stickers or indicators on the pump sleeve and the motor indicate whether the pump is suitable for use in an
environment with risk of explosion.
It is allowed to install the pump in a zone which is classied in directive 1999/92/EC.
When in doubt it is compulsory to check the above directive.
5.10.2 Indication
II 2G IIC T3 X
Sulzer Pump Solutions Ireland Ltd.
Clonard Road, Wexford, Ireland.
1563-00
Figure 6. Indication sticker; explosion safety
Table 8. ATEX marking
Indication Meaning
II Product group for use above ground, with the exception of mine working where there can be a danger of explosion due to
mine gas and/or ammable substances.
2 Category 2: Equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures of
air and gases, vapours or mists, or by air/dusts mixtures are likely to occur.
3 Category 3: Equipment in this category is intended for use in areas in which explosive atmospheres caused by mixtures
of air and gases, vapours or mists, or by air/dusts mixtures are likely to occur or, if they do occur, are likely to do so only
infrequently and for a short period only.
G Suitable for an environment that is explosive due to gas, vapour or fumes; not suitable for an environment that is explosive
due to dust.
T4 / T3 Temperature class:
T4 for maximum surface temperature 135 °C
T3 for maximum surface temperature 200 °C
5.10.3 Medium temperature
The applied ATEX motor determines the maximum allowable temperature of the pumped liquid (see Table 9,
“Maximum medium temperatures”).
Table 9. Maximum medium temperatures
ATEX marking motor Maximum allowable medium temperature
Exe T3 60 °C
Exd T4 100 °C
Exde T4 100 °C
Others Maximum ambient temperature of motor

Installation, Operating and Maintenance Instructions (Original Instructions) 15
VMS Vertical Multistage Pumps
15
5.10.4 Commissioning (checklist)
It is compulsory to check these points prior to putting the pump in operation:
• The ATEX code of an ATEX ‘pump with motor’ assembly supplied by Sulzer can be found on the pump
shroud. Check if the ATEX code of the ‘pump with motor’ assembly is in accordance with the ATEX
specication of the motor. For each part of the code the specication of the assembly may not be higher than
the specication of the motor.
• Make sure that the pump is protected against damage from outside.
• Make sure that the medium temperature never exceeds the maximum allowed temperature (see Table
9, “Maximum medium temperatures”). Apply a temperature monitoring and limiting system, meeting the
requirements of EN 13463-6, that stops the pump at too high medium temperatures. Please note that the
maximum temperature noted on the nameplate of the pump refers to the technical specication of the pump
and does not necessarily match with the maximum allowed medium temperature for ATEX applications.
• Apply a monitoring and limiting system, meeting the requirements of EN 13463-6, to prevent dry running.
It has to check the presence of the medium at the inlet of the pump and stop the pump when no medium is
available.
• Apply a monitoring and limiting system to secure that the maximum current for the motor is not exceeded.
• If the motor is suited with a PTC; connect the PTC to a monitoring and limiting system.
• Check if the motor cable is suitable for the current drawn by the motor (see the motor type plate).
• Check if the pump is fully lled with the medium (de-aerated). Do not operate the pump when gas is present
in the pump.
• Check the rotational direction of the motor. The motor has to run clockwise (seen from the non-driven side).
This direction is indicated with an arrow on the motor stool.
• Do not apply higher pressures in the pump than is allowed at the working temperature of the medium. The
allowed pressure can be found on the nameplate of the pump.
• Do not operate the pump at ows lower than specied in performance curve (see the technical
documentation).
• Do not operate the pump at ows higher than specied in the performance curve (see the technical
documentation).
• Do not operate the pump with inlet pressures lower than specied in the NPSHreq requirements
[NPSHreq + 1 m] (see the technical documentation).
• Make sure that the maximum particle sizes in the medium does not exceed the values specied at ‘5.8
Working range’.
• The pump has to be de-aerated again when the pump has not operated for a while or gas has gathered in the
pump.
• Wrong adjustment of the coupling can cause interference of pump parts. Assembling and adjusting the
coupling has to be performed by a certied mechanic from the supplier of the pump.
• Make sure the coupling guards are assembled.
• Wrong assembly of the coupling guards could cause them to vibrate during operation of the pump or cause
interference of pump parts. If the coupling guards have to be assembled or reassembled, this has to be done
by a certied mechanic from the supplier of the pump. Make sure that the pump and the motor shaft are
running smoothly without excessive noise (e.g. no parts are running against each other).
• Wrong assembling of the mechanical seal construction (easy access or cartridge) can cause malfunction of
the pump. Assembling of the cartridge/easy access seal construction has to be done by a certied mechanic
from the supplier of the pump.
• Make sure that only media is pumped that is compatible with the seals and elastomers that are applied in the
pump (see technical documentation).
• Electric installation of the pump has to be done by an ATEX-certied mechanic.
• Make sure the pump is electrically connected (earthed) with the surrounding parts of the installation.

16 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
16
• Regularly examine the condition of the bearings in the motor and/or thrust bearing housing (for example by
means of vibrations measurement) in order to detect damage of the bearing raceways/roller elements. Stop
the application of the pump when damage in a roller element bearing is found.
• If a ammable medium is pumped, its temperature may not exceed its ignition temperature minus 50 °C.
• Take care with an intensively used pump which is successively not used for a while; when it is started again,
leakage can occur at the shroud.
• Do not pump di󰀨erent mediums which can have chemical reactions with each other.
If the pump is supplied without motor, it is compulsory to also check the following additional points prior to
putting the pump in operation:
• Apply a motor that is ATEX certied for Equipment Group IIG.
• The determination of the ATEX code and certication of the assembly is the responsibility of the owner of the
pump/motor. The di󰀨erent parts of the ATEX code of the assembly are determined by the lowest specication
of pump or motor.
• Apply a motor that has a special bearing which is suited to support the high axial loads at the pump shaft. If
this is not the case, a thrust bearing housing has to be applied.
• Apply a motor with a nominal power which is suited to drive the pump at the operating frequency.
• Apply a motor that has the proper frame size to connect with the motor stool.
If a pump supplied with thrust bearing housing or a solely supplied thrust bearing housing is supplied, it is
compulsory to also check the following additional points prior to putting the pump in operation:
• Wrong adjustment of the axial play between the thrust bearing housing shaft and the motor shaft could result
in too high impacts between these shafts and/or increased wear of the roller element bearings. Assembling of
the electric motor on the thrust bearing housing has to be done by a certied mechanic from the supplier of
the pump.
• When the thrust bearing housing has a grease nipple it can be lubricated. Proper lubrication is important
to prevent high temperatures in the bearing. If the thrust bearing housing has grease nipple it is obligatory
to take care of adequate lubrication by supplying grease on a yearly basis. This needs to be grease with a
melting point and ignition temperature of minimally 200 °C.
• Do not install the pump horizontally or upside down.

Installation, Operating and Maintenance Instructions (Original Instructions) 17
VMS Vertical Multistage Pumps
17
6 Transport
6.1 Transport
1. Transport the pump in the position as indicated on the pallet or packaging.
2. Make sure the pump is stable.
3. If present, observe the instructions on the packaging.
ATTENTION! If necessary, lift the pump using a hoist and suitable slings. Attach the slings to the
transport lugs on the packaging, where present.
ATTENTION! The pump must be lifted according to the current hoist guidelines. Only qualied
personnel are allowed to lift the pump.
ATTENTION! Do not lift the pump by using the frequency converter (if placed), electrical parts or
the motor cover. Be sure that the pump is always in balance.
ATTENTION! Pumps could tilt while lifting. Do not remove the lifting devices from the pump before
the pump is placed and mounted correctly.
X
1564-00
Figure 7. Transport positions
6.2 Storage
Fill the pump with glycol in order to protect it against the risk of frost.
Table 10. Storage
Storage
tambient [°C] -10/+40
Max. rel. humidity 80% at 20 °C not condensing
6.2.1 Inspection during storage
Turn the shaft every three months and just before putting into operation.

18 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
18
7 Installation instructions
7.1 Setting up the pump
ATTENTION! Avoid stress in the pump casing caused by misalignment in the piping system.
Please see tables below.
Table 11. Allowable forces VMS(S)F, VMS H and VMSCF
Type DN
[mm]
Force [N] Type DN
[mm]
Force [N]
Fx Fy Fz ΣF Fx Fy Fz ΣF
(S)F 2 B 25 3300 -2400 1700 4420 CF 2 B 25 9400 -3200 3200 10430
(S)F 4 B 25 3300 -2400 1700 4420 CF 4 B 25 9400 -3200 3200 10430
(S)F 6 B 32 3300 -2400 1700 4420 CF 6 B 32 9400 -3200 3200 10430
(S)F 10 B 40 4000 -3100 3100 5930 CF 10 B 40 8000 -2000 3200 8850
(S)F 15 B / C 50 4000 -3100 3100 5930 CF 15 B / C 50 8000 -2000 3200 8850
(S)F 25 B 65 3200 -3500 3500 5890 CF 25 B 65 5000 -2000 2500 5940
(S)F 40 B PN16/25 80 4000 -1800 2000 4820 CF 40 B 80 6000 -3000 3000 7350
(S)F 40 B PN40 80 3700 -3300 3700 6190 CF 60 B 100 6000 -3000 3000 7350
(S)F 60 B PN16/25 100 4000 -1800 2000 4820 CF 85 B 100 6200 -4100 4100 8490
(S)F 60 B PN40 100 3700 -3300 3700 6190 CF 125 B 16 Bar 125 4400 -1700 1700 5010
(S)F 85 B 100 3500 -2500 1000 4420 CF 125 B 25/40 Bar 125 7000 -2620 2620 7920
(S)F 125 B 16 Bar 125 4400 -1700 1700 5010
(S)F 125 B 25/40 Bar 125 7000 -2620 2620 7920
VMS H 6 32 8000 -2000 3200 8800
Table 12. Allowable torque VMS(S)F, VMS H and VMSCF
Type DN
[mm]
Moment [Nm] Type DN
[mm]
Moment [Nm]
Mx My Mz ΣM Mx My Mz ΣM
(S)F 2 B 25 280 95 -210 360 CF 2 B 25 600 300 -360 760
(S)F 4 B 25 280 95 -210 360 CF 4 B 25 600 300 -360 760
(S)F 6 B 32 280 95 -210 360 CF 6 B 32 600 300 -360 760
(S)F 10 B 40 440 180 -200 520 CF 10 B 40 460 460 -500 820
(S)F 15 B / C 50 440 180 -200 520 CF 15 B / C 50 460 460 -500 820
(S)F 25 B 65 1000 230 -400 1100 CF 25 B 65 1000 300 -300 1090
(S)F 40 B PN16/25 80 400 200 -300 540 CF 40 B 80 1800 1000 -1000 2290
(S)F 40 B PN40 80 975 240 -450 1100 CF 60 B 100 1800 1000 -1000 2290
(S)F 60 B PN16/25 100 400 200 -300 540 CF 85 B 100 2000 1200 -1200 2620
(S)F 60 B PN40 100 975 240 -450 1100 CF 125 B 16 Bar 125 600 425 -425 850
(S)F 85 B 100 750 500 -625 1100 CF 125 B 25/40 Bar 125 1000 650 -650 1360
(S)F 125 B 16 Bar 125 600 425 -425 850
(S)F 125 B 25/40 Bar 125 1000 655 -655 1360
VMS H 6 32 460 460 -500 800
ATTENTION! For the values mentioned in the tables above, it is assumed that they occur
simultaneously.

Installation, Operating and Maintenance Instructions (Original Instructions) 19
VMS Vertical Multistage Pumps
19
1565-00
Figure 8. Allowable forces
ATTENTION! Pumps which do not stand steady or stable on their own, should be mounted on a
rigid and stable base.
ATTENTION! Locate the pump at the place with the lowest risk for noise nuisance.
1. Place and install the pump on a level, stable surface in a dry and frost-free room.
2. Make sure that su󰀩cient air can reach the cooling fan of the motor. For this purpose the free space above
the cooling fan should be at least one quarter of the diameter of the fan cover air intake.
3. Install the pump with counter anges. For pumps with non-standardised connections, counter anges are
delivered separately.
4. It is advised to install a shut o󰀨 valve on the supply and on the delivery connection of the pump.
5. To avoid medium owing back through the pump, when idle, make sure a non-return valve is installed.
6. Make sure that the inlet of the pump is never clogged.
7.1.1 Indicators
B
A
1566-00
Figure 9. Pump indicators
The arrow (A) on the pump foot indicates the ow direction of the liquid. The arrow (B) on the top bracket
indicates the rotating direction of the motor.
7.1.2 Install bypass
Install a bypass if the pump operates against a closed valve. The required capacity of the bypass is at least
10% of the optimum volume ow. At high operating temperatures a higher volume ow is required. Refer to
the table ”Minimum volume ows” in the paragraph 5.8 ”Working range”, and Fig. 5, ”Minimum capacity vs.
temperature (in % of Q optimum)”.

20 Installation, Operating and Maintenance Instructions (Original Instructions)
VMS Vertical Multistage Pumps
20
7.2 Mounting a motor on the pump
ATTENTION! It is to be advised to use a special designed Sulzer motor. Before installing another
brand/standard IEC-norm motor, Sulzer has to be consulted to judge the applicability.
The following motor specications are required:
• Increased power output (when applicable).
• Reinforced bearing at driven end (to withstand the axial force).
• Fixed bearing at driven end (to minimize the axial play).
• Smooth shaft, no key way (to improve the coupling grip and to improve the motor balance).
The advised bearings per motor type are:
Table 13. Minimum required driven-end motor bearing
Power output [kW] 1-phase 50 Hz 3-phase 50/60 Hz
2 pole 4 pole
0.25 6202-2Z-C3
0.37 6202-2Z-C3 6203-2Z-C3 6202-2Z-C3
0.55 6202-2Z-C3 6203-2Z-C3 6202-2Z-C3
0.75 6204-2Z-C3 6204-2Z-C3 6202-2Z-C3
1.1 6204-2Z-C3 6204-2Z-C3 6205-2Z-C3
1.5 6305-2Z-C3 6305-2Z-C3 6205-2Z-C3
2.2 6305-2Z-C3 6305-2Z-C3 6206-2Z-C3
3.0 6306-2Z-C3 6206-2Z-C3
4.0 6306-2Z-C3 6208-2Z-C3
5.5 6308-2Z-C3 6208-2Z-C3
7.5 6308-2Z-C3 6208-2Z-C3
11.0 7309
15.0 7309
18.5 7309
22.0 7311
30.0 7312
37.0 7312
45.0 7313