Flowserve NM User Manual

NM centrifugal pump

USER INSTRUCTIONS

Installation

Operation

Multi-stage, single suction and radial joint plan pump type
centrifugal pump

PCN=71576289 – 11/09 (E) Original instructions.

Maintenance

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

CONTENTS

1 INTRODUCTION AND SAFETY ...........................4

1.1 G

ENERAL

1.2 CE

1.3 D

ISCLAIMER

1.4 C

OPYRIGHT

1.5 D

UTY CONDITIONS

1.6 S

AFETY

1.7 N

AMEPLATE AND SAFETY LABELS

1.8 S

PECIFIC MACHINE PERFORMANCE

2 TRANSPORT AND STORAGE ...........................10

2.2 H

ANDLING

2.4 S

TORAGE

2.5 R

ECYCLING AND END OF PRODUCT LIFE

3 PUMP DESCRIPTION.........................................12

3.1 C

ONFIGURATIONS

3.2 N

OMENCLATURE

4 INSTALLATION....................................................14

4.1 L

OCATION

4.2 F

OUNDATION

4.3 G

ROUTING

4.4 I

NITIAL ALIGNMENT

4.5 P

IPING

4.6 E

LECTRICAL CONNECTIONS

4.7 F

INAL SHAFT ALIGNMENT CHECK

4.8 P

ROTECTION SYSTEMS

5 COMMISSIONING, START-UP, OPERATION AND

SHUTDOWN...........................................................18

5.1 PRE-

5.2 D

IRECTION OF ROTATION

.........................................................4

MARKING AND APPROVALS

......................................................4

......................................................4

............................................4

............................................................5

......................................................10

.......................................................12

...........................................12

.............................................13

.......................................................14

..................................................14

......................................................15

..........................................15

...........................................................16

COMMISSIONING PROCEDURE

...........................4

.............................17

....................................18

.................................19

PAGE

.......................8

....................8

............12

.......................18

...................18

6 MAINTENANCE...................................................23

6.1 G

7 FAULTS; CAUSES AND REMEDIES ..................31

8 PARTS LIST AND DRAWINGS ...........................32

9 CERTIFICATION .................................................47

10 OTHER RELEVANT DOCUMENTATION AND

MANUALS...............................................................47

ENERAL

6.2 M

AINTENANCE SCHEDULE

6.3 S

PARE PARTS

6.4 R

ECOMMENDED SPARES AND CONSUMABLE ITEMS

............................................................................29

6.5 D

ISASSEMBLY

8.1 S

ECTIONAL DRAWINGS

8.2 S

ECTIONAL DRAWINGS PART LIST

8.3 G

ENERAL ARRANGEMENT DRAWING

10.1 S

10.2 C

10.3 A

........................................................23

................................24

..................................................29

.................................................29

....................................32

.....................42

.................47

UPPLEMENTARY USER INSTRUCTIONS
HANGE NOTES
DDITIONAL SOURCES OF INFORMATION

............................................47

PAGE

..........47

.........47

IF MAINTENANCE WORK HAS BEEN
CARRIED OUT TO THE SITE'S ELECTRICITY SUPPLY, THE
DIRECTION OF ROTATION SHOULD BE RE-CHECKED AS
ABOVE IN CASE THE

5.4 P

RIMING AND AUXILIARY SUPPLIES

5.5 S

TARTING THE PUMP

5.6 R

UNNING THE PUMP

5.7 S

TOPPING AND SHUTDOWN

5.8 H

YDRAULIC, MECHANICAL AND ELECTRICAL DUTY

............................................................................22

5.9 P

UMPS FOR FOOD USE OR POTABLE WATER

...............................................19

...................19

.......................................20

........................................20

..............................22

...23

Page 2 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

INDEX

Additional sources (10.3).......................................47

Alignment of shafting (see 4.2, 4.4 and 4.7)

ATEX marking (1.6.4.2) ...........................................7

CE marking and approvals (1.2)..............................4

Certification (9) ......................................................47

Change notes (10.2)..............................................47

Cleaning prior to operation (5.9.1) ........................23

Commissioning, start-up, operation (5) .................18

Compliance, ATEX (1.6.4.1)....................................6

Configurations (3.1) ...............................................12

Copyright (1.4).........................................................4

Direction of rotation (5.1) .......................................18

Disassembly (6.5)..................................................29

Discharge piping (4.5.3) .......................................17

Disclaimer (1.3)........................................................4

Dismantling (see 6.5, Disassembly)......................29

Drawings (8.1) .......................................................32

Duty conditions (1.5)................................................4

Electrical connections (4.6) ...................................17

End of product life (2.5) .........................................12

Faults; causes and remedies (7) ...........................31

Final checks (4.5.4) ..............................................17

First pump start up (5.5.2) ....................................20

Foundation (4.2) ....................................................14

Forces and moments (see 4.5.1)...........................16

General arrangement drawing (8.3) ......................47

Gland packing (6.2.5) ............................................27

Grouting (4.3).........................................................15

Guarding (5.3)........................................................19

Handling (2.2) ........................................................10

Hydraulic, mechanical and electrical duty (5.8).....22

Inspection (6.2.2 and 6.2.3)...................................26

Installation (4) ........................................................14

Internal coating (6.2.6)...........................................29

Lifting (2.3).............................................................11

Location (4.1).........................................................14

Lubrication (5.1.1)..................................................18

Maintenance (6).....................................................23

Maintenance schedule (6.2) ..................................24

Mechanical seal (6.2.4) .........................................27

Nomenclature (3.2)................................................13

Nameplate (1.7.1)....................................................8

Operating limits (see 3.1) ......................................12

Ordering spare parts (6.3.1) ..................................29

Parts lists (8.2).......................................................42

Piping (4.5) ............................................................16

Protection systems (4.8)........................................18

Pump masses (2.2.2) ............................................11

Receipt and unpacking (2.1)..................................10

Recommended fill quantities (see 6.2.1.1 and

6.2.1.2)...................................................................26

Recommended grease lubricants (see 6.2.1.1) ....25

Recommended oil lubricants (see 6.2.1.2)............26

Recommended spares (6.4) ..................................29

Recycling (2.5).......................................................12

Replacement parts (see 6.3 and 6.4)....................29

PAGE

Running the pump (5.6).........................................20

Safety action (1.6.3).................................................5

Safety labels (1.7.2).................................................8

Safety markings (1.6.1)............................................5

Safety, protection systems (see 1.6 and 4.8)

Sectional drawings (8.1) ........................................32

Sound level (see 1.9, Noise level)...........................9

Sources, additional information (10.3)...................47

Spare parts (6.3)....................................................29

Specific machine performance (1.8)........................8

Standard maintenance (6.2.1) ..............................24

Starting the pump (5.5)..........................................20

Stop/start frequency (5.6.6) ...................................22

Stopping and shutdown (5.7).................................22

Storage, pump (2.4)...............................................12

Storage, spare parts (6.3.2)...................................29

Suction piping (4.5.2) ............................................17

Supplementary manuals or information sources ...47

Thermal expansion (4.4.1) ....................................15

Transport and storage (2) .....................................10

Trouble-shooting (see 7)........................................30

Vibration (5.6.5) .....................................................21

PAGE

Page 3 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

1 INTRODUCTION AND SAFETY

1.1 General

These instructions must always be kept

close to the product's operating location or
directly with the product.

Flowserve’s products are designed, developed and
manufactured with state-of-the-art technologies in
modern facilities. The unit is produced with great
care and commitment to continuous quality control,
utilizing sophisticated quality techniques, and safety
requirements.

Flowserve is committed to continuous quality
improvement and being at service for any further
information about the product in its installation and
operation or about its support products, repair and
diagnostic services.

These instructions are intended to facilitate
familiarization with the product and its permitted use.
Operating the product in compliance with these
instructions is important to help ensure reliability in
service and avoid risks. The instructions may not
take into account local regulations; ensure such
regulations are observed by all, including those
installing the product. Always coordinate repair
activity with operations personnel, and follow all
plant safety requirements and applicable safety and
health laws and regulations.

These instructions must be read prior to

installing, operating, using and maintaining the
equipment in any region worldwide. The
equipment must not be put into service until all
the conditions relating to safety noted in the
instructions, have been met. Failure to follow
and apply the present user instructions is
considered to be misuse. Personal injury,
product damage, delay or failure caused by
misuse are not covered by the Flowserve
warranty.

1.2 CE marking and approvals

It is a legal requirement that machinery and
equipment put into service within certain regions of
the world shall conform with the applicable CE
Marking Directives covering Machinery and, where
applicable, Low Voltage Equipment, Electromagnetic
Compatibility (EMC), Pressure Equipment Directive
(PED) and Equipment for Potentially Explosive
Atmospheres (ATEX).

Where applicable the Directives and any additional
Approvals cover important safety aspects relating to
machinery and equipment and the satisfactory
provision of technical documents and safety
instructions. Where applicable this document
incorporates information relevant to these Directives
and Approvals.

To confirm the Approvals applying and if the product is
CE marked, check the serial number plate markings
and the Certification. (See section 9, Certification.)

1.3 Disclaimer

Information in these User Instructions is believed
to be reliable. In spite of all the efforts of Flowserve
Pump Division to provide sound and all necessary
information the content of this manual may appear
insufficient and is not guaranteed by Flowserve as
to its completeness or accuracy.

Flowserve manufactures products to exacting
International Quality Management System Standards
as certified and audited by external Quality Assurance
organizations. Genuine parts and accessories have
been designed, tested and incorporated into the
products to help ensure their continued product quality
and performance in use. As Flowserve cannot test
parts and accessories sourced from other vendors the
incorrect incorporation of such parts and accessories
may adversely affect the performance and safety
features of the products. The failure to properly select,
install or use authorized Flowserve parts and
accessories is considered to be misuse. Damage or
failure caused by misuse is not covered by the
Flowserve warranty. In addition, any modification of
Flowserve products or removal of original components
may impair the safety of these products in their use.

1.4 Copyright

All rights reserved. No part of these instructions may
be reproduced, stored in a retrieval system or
transmitted in any form or by any means without
prior permission of Flowserve.

1.5 Duty conditions

This product has been selected to meet the
specifications of your purchaser order. The
acknowledgement of these conditions has been sent
separately to the Purchaser. A copy should be kept
with these instructions.

The product must not be operated beyond

the parameters specified for the application. If
there is any doubt as to the suitability of the
product for the application intended, contact
Flowserve for advice, quoting the serial number.

If the conditions of service on your purchase order
are going to be changed (for example liquid
pumped, temperature or duty) it is requested that the
user seeks the written agreement of Flowserve
before start up.

Page 4 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

1.6 Safety

1.6.1 Summary of safety markings

These User Instructions contain specific safety
markings where non-observance of an instruction
would cause hazards. The specific safety markings
are:

1.6.3 Safety action

This is a summary of conditions and actions to
prevent injury to personnel and damage to the
environment and to equipment. For products
used in potentially explosive atmospheres
section 1.6.4 also applies.

This symbol indicates electrical safety
instructions where non-compliance will involve a
high risk to personal safety or the loss of life.

This symbol indicates safety instructions where
non-compliance would affect personal safety and
could result in loss of life.

This symbol indicates “hazardous substances
and toxic fluid” safety instructions where non­compliance would affect personal safety and could
result in loss of life.

This symbol indicates safety
instructions where non-compliance will involve some
risk to safe operation and personal safety and would
damage the equipment or property.

This symbol indicates explosive atmosphere
zone marking according to ATEX. It is used in safety
instructions where non-compliance in the hazardous
area would cause the risk of an explosion.

This symbol is used in safety instructions to
remind not to rub non-metallic surfaces with a dry
cloth; ensure cloth is damp. It is used where non­compliance in the hazardous area would cause the
risk of an explosion.

This sign is not a safety symbol but indicates

an important instruction in the assembly process.

1.6.2 Personnel qualification and training

All personnel involved in the operation, installation,
inspection and maintenance of the unit must be
qualified to carry out the work involved. If the
personnel in question do not already possess the
necessary knowledge and skill, appropriate training
and instruction must be provided. If required the
operator may commission the manufacturer/supplier
to provide applicable training.

Always coordinate repair activity with operations and
health and safety personnel, and follow all plant
safety requirements and applicable safety and health
laws and regulations.

NEVER DO MAINTENANCE WORK

WHEN THE UNIT IS CONNECTED TO POWER

GUARDS MUST NOT BE REMOVED WHILE

THE PUMP IS OPERATIONAL

DRAIN THE PUMP AND ISOLATE
PIPEWORK BEFORE DISMANTLING THE PUMP
The appropriate safety precautions should be taken
where the pumped liquids are hazardous.

FLUORO-ELASTOMERS (When fitted.)
When a pump has experienced temperatures over
250 ºC (482 ºF), partial decomposition of fluoro­elastomers (example: Viton) will occur. In this
condition these are extremely dangerous and skin
contact must be avoided.

HANDLING COMPONENTS
Many precision parts have sharp corners and the
wearing of appropriate safety gloves and equipment
is required when handling these components. To lift
heavy pieces above 25 kg (55 lb) use a crane
appropriate for the mass and in accordance with
current local regulations.

THERMAL SHOCK
Rapid changes in the temperature of the liquid within
the pump can cause thermal shock, which can result
in damage or breakage of components and should
be avoided.

NEVER APPLY HEAT TO REMOVE
IMPELLER
Trapped lubricant or vapour could cause an
explosion.

HOT (and cold) PARTS
If hot or freezing components or auxiliary heating
supplies can present a danger to operators and
persons entering the immediate area action must be
taken to avoid accidental contact. If complete
protection is not possible, the machine access must
be limited to maintenance staff only, with clear visual
warnings and indicators to those entering the
immediate area. Note: bearing housings must not be
insulated and drive motors and bearings may be hot.

If the temperature is greater than 68 °C (155 °F)
or below -5 °C (23 °F) in a restricted zone, or
exceeds local regulations, action as above shall
be taken.

Page 5 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

HAZARDOUS LIQUIDS
When the pump is handling hazardous liquids care
must be taken to avoid exposure to the liquid by
appropriate sitting of the pump, limiting personnel
access and by operator training. If the liquid is
flammable and/or explosive, strict safety procedures
must be applied.

Gland packing must not be used when pumping
hazardous liquids.

PREVENT EXCESSIVE EXTERNAL
PIPE LOAD
Do not use pump as a support for piping. Do not
mount expansion joints, unless allowed by
Flowserve in writing, so that their force, due to
internal pressure, acts on the pump flange.

ENSURE CORRECT LUBRICATION
(See section 5, Commissioning, startup, operation
and shutdown.)

START THE PUMP WITH OUTLET
VALVE PART OPENED
(Unless otherwise instructed at a specific point in the
User Instructions.)

This is recommended to minimize the risk of
overloading and damaging the pump motor at full or
zero flow. Pumps may be started with the valve
further open only on installations where this situation
cannot occur. Pump outlet valve shall may need to
be adjusted to comply with the duty following the
run-up process. (See section 5, Commissioning
start-up, operation and shutdown.)

NEVER RUN THE PUMP DRY

INLET VALVES TO BE FULLY OPEN
WHEN PUMP IS RUNNING
Running the pump at zero flow or below the
recommended minimum flow continuously will cause
damage to the seal.

DO NOT RUN THE PUMP AT
ABNORMALLY HIGH OR LOW FLOW RATES
Operating at a flow rate higher than normal or at a
flow rate with no backpressure on the pump may
overload the motor and cause cavitations. Low flow
rates may cause a reduction in pump/bearing life,
overheating of the pump, instability and
cavitations/vibration.

1.6.4 Products used in potentially explosive
atmospheres

The following instructions for pumps and pump
units when installed in potentially explosive
atmospheres must be followed to help ensure
explosion protection.

The terminology and procedures ensure that the
installed pump is in compliance with the European
Directive 94/9/EC, known as the ATEX Directive, which
is mandatory in Europe and may also be specified in
other countries. Where applicable, both electrical and
non-electrical equipment must meet the requirements
94/9/EC.

Even if the installation is in a region where ATEX is not
the applicable regulation, the general measures
described shall be followed to ensure safe operation.

The measures are explained under the headings of:

• Avoiding excessive surface temperature.

• Preventing build up of explosive mixtures.

• Preventing the generation of sparks.

• Preventing leakages.

• Maintaining the pump to avoid hazard.

1.6.4.1 Scope of compliance

Use equipment only in the zone for which it is
appropriate. Always check that the driver, drive
coupling assembly, seal and pump equipment are
suitably rated and/or certified for the classification of
the specific atmosphere in which they are to be
installed.

Where Flowserve has supplied only the bare shaft
pump, the Ex rating applies only to the pump. The
party responsible for assembling the pump set shall
select the coupling, driver and any additional
equipment, with the necessary CE Declaration of
Conformity establishing it is suitable for the area in
which it is to be installed.

The output from a variable frequency drive (VFD) can
cause additional heating affects in the motor and so, for
pumps sets with a VFD, the ATEX Certification for the
motor must state that it is covers the situation where
electrical supply is from the VFD. This particular
requirement still applies even if the VFD is in a safe
area.

Page 6 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

1.6.4.2 Marking

An example of ATEX equipment marking is shown
below. The actual classification of the pump will be
engraved on the nameplate.

II 2 GD c IIC 135 ºC (T4)

Equipment Group
I = Mining
II = Non-mining

Category
2 or M2 = High level protection
3 = normal level of protection

Gas and/or Dust
G = Gas; D= Dust

c = Constructional safety
(in accordance with EN13463-5)

Gas Group (Equipment Category 2 only)
IIA – Propane (typical)
IIB – Ethylene (typical)
IIC – Hydrogen (typical)

Maximum surface temperature (Temperature Class)
(see section 1.6.4.3)

1.6.4.3 Avoiding excessive surface temperatures

ENSURE THE EQUIPMENT TEMPERATURE

CLASS IS SUITABLE FOR THE HAZARD ZONE
Pumps have a temperature class as stated in the

ATEX Ex rating on the nameplate. These are based
on a maximum ambient of 40 °C (104 °F); refer to
Flowserve for higher ambient temperatures.

The surface temperature on the pump is influenced
by the temperature of the liquid handled. The
maximum permissible liquid temperature depends
on the temperature class and must not exceed the
values in the table that follows.

The temperature rise at the seals, bearings and due
to the minimum permitted flow rate is taken into
account in the temperatures stated.

Temperature limit of liquid

handled (* depending on

material and construction

variant - check which is

lower)

Consult Flowserve

Consult Flowserve
115 °C (239 °F) *
180 °C (356 °F) *
275 °C (527 °F) *
400 °C (752 °F) *

Temperature

class to

prEN 13463-1

T6
T5
T4
T3
T2
T1

Maximum

surface

temperature

permitted

85 °C (185 °F)
100 °C (212 °F)
135 °C (275 °F)
200 °C (392 °F)
300 °C (572 °F)
450 °C (842 °F)

The responsibility for compliance with the
specified maximum liquid temperature is with the
plant operator.

Temperature classification “Tx” is used when the
liquid temperature varies and the pump could be
installed in different hazardous atmospheres. In this
case the user is responsible for ensuring that the
pump surface temperature does not exceed that
permitted in the particular hazardous atmosphere.

If an explosive atmosphere exists during the
installation, do not attempt to check the direction of
rotation by starting the pump unfilled. Even a short
run time may give a high temperature resulting from
contact between rotating and stationary
components. Furthermore, confinement of liquid in
the pump and pipes must be avoided (valve closed).
If the liquid heats up this may cause excessive
pressure and lead to bursting of pump components.

Where there is any risk of the pump being run against
a closed valve generating high liquid and casing
external surface temperatures it is recommended that
users fit an external surface temperature protection
device.

Avoid mechanical, hydraulic or electrical overload by
using motor overload trips, temperature monitor or a
power monitor and make routine vibration monitoring
checks.

In dirty or dusty environments, regular checks must
be made and dirt removed from areas around close
clearances, bearing housings and motors.

1.6.4.4 Preventing the build up of explosive
mixtures

ENSURE PUMP IS PROPERLY FILLED AND

VENTED AND DOES NOT RUN DRY.

Ensure pump and relevant suction and discharge
pipeline system is totally filled with liquid at all times
during the pump operation, so that an explosive
atmosphere is prevented. In addition it is essential to
make sure that seal chambers, auxiliary shaft seal
systems and any heating and cooling systems are
properly filled.

If the operation of the system cannot avoid this
condition the fitting of an appropriate dry run
protection device is recommended (eg liquid
detection or power monitor).

To avoid potential hazards from fugitive emissions of
vapour or gas to atmosphere the surrounding area
must be well ventilated.

Page 7 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

1.6.4.5 Preventing sparks

To prevent a potential hazard from mechanical

contact, the coupling guard must be non-sparking.
To avoid the potential hazard from random induced

current generating a spark the ground contact on the
baseplate must be used.

Avoid electrostatic charge: do not rub non­metallic surfaces with a dry cloth, ensure cloth is
damp.

Where applicable the coupling must be selected to
comply with 94/9/EC and correct alignment must be
maintained.

Additional requirements for metallic pumps on
non-metallic baseplates.

When metallic components are fitted on a non­metallic baseplate they must be individually earthed
(grounded).

1.6.4.6 Preventing leakage

The responsibility for compliance with
maintenance instructions is with the plant
operator.

To avoid potential explosion hazards during
maintenance, the tools, cleaning and painting
materials used must not give rise to sparking or
adversely affect the ambient conditions. Where there
is a risk from such tools or materials; maintenance
must be conducted in a safe area.
It is recommended that a maintenance plan and
schedule is adopted. (See section 6, Maintenance.)

1.7 Nameplate and safety labels

1.7.1 Nameplate

For details of nameplate, see the Declaration of
Conformity, or separate documentation included with

these User Instructions.

1.7.2 Safety labels

The pump must only be used to handle liquids
for which it has been approved to have the correct
corrosion resistance.

Avoid entrapment of liquid in the pump and associated
piping due to closing of suction and discharge valves,
which could cause dangerous excessive pressures to
occur if there is heat input to the liquid. This can occur
if the pump is stationary or running.

Bursting of liquid containing parts due to freezing
must be avoided by draining or protecting the pump
and ancillary systems.

Where there is the potential hazard of a loss of a
seal barrier fluid or external flush, the fluid must be
monitored.

If leakage of liquid to atmosphere can result in a
hazard, the installation of a liquid detection device is
recommended.

1.6.4.7 Maintenance to avoid the hazard

CORRECT MAINTENANCE IS REQUIRED
TO AVOID POTENTIAL HAZARDS WHICH GIVE A
RISK OF EXPLOSION

Oil lubricated units only:

1.8 Specific machine performance

For performance parameters see section 1.5, Duty
conditions. When the contract requirement specifies

these to be incorporated into User Instructions these
are included here. Where performance data has
been supplied separately to the purchaser these
should be obtained and retained with these User
Instructions if required.

Page 8 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

1.9 Noise level

Attention must be given to the exposure of
personnel to the noise, and local legislation will
define when guidance to personnel on noise
limitation is required, and when noise exposure
reduction is mandatory. This is typically 80 to 85
dBA.

The usual approach is to control the exposure time
to the noise or to enclose the machine to reduce
emitted sound. You may have already specified a
limiting noise level when the equipment was
ordered, however if no noise requirements were
defined, then attention is drawn to the following table
to give an indication of equipment noise level so that
you can take the appropriate action in your plant.

Pump noise level is dependent on a number of
operational factors, flow rate, pipework design and
acoustic characteristics of the building, and so the
values given are subject to a 3 dBA tolerance and
cannot be guaranteed.

Similarly the motor noise assumed in the “pump and
motor” noise is that typically expected from standard
and high efficiency motors when on load directly
driving the pump. Note that a motor driven by an
inverter may show an increased noise at some
speeds.
If a pump unit only has been purchased for fitting
with your own driver then the “pump only” noise
levels in the table should be combined with the level
for the driver obtained from the supplier. Consult
Flowserve or a noise specialist if assistance is
required in combining the values.

It is recommended that where exposure approaches
the prescribed limit, then site noise measurements
should be made.
The values are in sound pressure level LpA at 1 m
(3.3 ft) from the machine, for “free field conditions
over a reflecting plane”.

For estimating sound power level LWA (re 1 pW) then
add 17 dBA to the sound pressure value.

1 The noise level of machines in this range will most likely be of values which require noise exposure control, but typical values are inappropriate.

Note: for 1 180 and 960 r/min reduce 1 450 r/min values by 2 dBA. For 880 and 720 r/min reduce 1 450 r/min values by 3 dBA.

Motor size

and speed

kW (hp)

<0.55(<0.75) 72 72 64 65 62 64 62 64

0.75 (1) 72 72 64 66 62 64 62 64

1.1 (1.5) 74 74 66 67 64 64 62 63

1.5 (2) 74 74 66 71 64 64 62 63

2.2 (3) 75 76 68 72 65 66 63 64
3 (4) 75 76 70 73 65 66 63 64
4 (5) 75 76 71 73 65 66 63 64

5.5 (7.5) 76 77 72 75 66 67 64 65

7.5 (10) 76 77 72 75 66 67 64 65
11(15) 80 81 76 78 70 71 68 69

15 (20) 80 81 76 78 70 71 68 69

18.5 (25) 81 81 77 78 71 71 69 71
22 (30) 81 81 77 79 71 71 69 71
30 (40) 83 83 79 81 73 73 71 73
37 (50) 83 83 79 81 73 73 71 73
45 (60) 86 86 82 84 76 76 74 76
55 (75) 86 86 82 84 76 76 74 76

75 (100) 87 87 83 85 77 77 75 77

90 (120) 87 88 83 85 77 78 75 78
110 (150) 89 90 85 87 79 80 77 80
150 (200) 89 90 85 87 79 80 77 80
200 (270)
300 (400) 87 90 85 86

Typical sound pressure level LpA at 1 m reference 20 µPa, dBA

3 550 r/min 2 900 r/min 1 750 r/min 1 450 r/min

Pump

only

1 1 1 1

Pump and

motor

Pump

only

Pump and

motor

Pump

only

85 87 83 85

Pump and

motor

Pump

only

Pump and

motor

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

In areas where the staff has to intervene, remember
that when the level of the sound pressure is:

• below 70 dBA: it is not necessary to take special
precautions.

• above 70 dBA: people working continuously in
the machine room must be supplied with
protective devices against noise.

• below 85 dBA: no particular measures need to
be taken for casual visitors staying in the room
during a limited period.

• above 85 dBA: the room must be considered as
a dangerous area because of the noise and a
warning sign must be fixed at each entry
warning the people coming into the room, even
for a short period, that they must wear hearing
protection.

• above 105 dBA: special hearing protection
adapted to this noise level and to the spectral
noise components must be installed and a
warning sign to this effect erected at each entry.
The staff in the room must wear ear protection.

Make sure that the noise, which travels through the
walls and windows, does not generate too high
noise levels in the machine room's surroundings.

2 TRANSPORT AND STORAGE

2.1 Consignment receipt and unpacking

Immediately after receipt of the equipment it must be
checked against the delivery and shipping
documents for its completeness and that there has
been no damage in transportation.

Any shortage and or damage must be reported
immediately to Flowserve Pump Division and
received in writing within one month of receipt of the
equipment. Later claims cannot be accepted.

Check any crate, boxes and wrappings for any
accessories or spare parts that may be packed
separately with the equipment or attached to
sidewalls of the box or equipment.

Each product has a unique serial number. Check
that this number corresponds with that advised and
always quote this number in correspondence as well

2.2 Handling

2.2.1 General instructions concerning handling

Boxes, crates, pallets or cartons may be unloaded
using forklift vehicles or slings dependent on their
size and construction. See 2.3.1 for positioning of
slings.

To lift heavy pieces above 25 kg (55 lb), use a winch
adapted to the mass and in accordance with the
current local regulations.

To lift machines or pieces with one or several
suspension rings, only use hooks and chains in
compliance with the local regulations concerning
safety. Never put cables, chains or ropes directly on
or in the suspension rings. Cables, chains or lifting
ropes must never present excessive bending.

Never bend the lifting hooks, suspension rings,
chains, etc., which should only be made to endure
stresses within, calculated limits. Remember that the
capacity of a lifting device decreases when the
direction of the lifting force direction makes an angle
with the device axis.

To increase the safety and the efficiency of the lifting
device, all the lifting elements must be as
perpendicular as possible. If necessary a lifting
beam can be placed between the winch and the
load.

When heavy pieces are lifted up, never stay or work
under the load or in the area, which could be in the
path of the load if it were to swing or fall away.
Never leave a load hanging from a winch. The
acceleration or the slowing-down of lifting equipment
must stay in the safety limits for the staff.

A winch must be positioned in such a way that the
load will be raised perpendicularly. Where possible
necessary precautions must be taken to avoid the
swing of the load, using for example two winches
making approximately the same angle, below 30°,
with the vertical.

as when ordering spare parts or further accessories.

Page 10 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

2.2.2 Pump masses

All masses are in kg:

MASS OF BARE SHAFT PUMPS ACCORDING TO STAGE NUMBER

PUMP TYPES

32 NM 45 50 55 60 65 70 75 80 85 90 95
40 NM 56 65 74 83 92 101 110 119 128
50 NM 82 92 102 112 122 132 142 152
65 NM 111 123 135 147 159 171 183

80 NM 146 165 184 203 222 241
100 NM 245 285 325 365 405 445 485 525
125 NM 466 509 552 595 638 681 724 767 810
150 NM 646 756 864 973 1082 1191 1300 1409 1518 1627 1736
200 NM 1048 1190 1332 1474 1616 1758 1900 2042 2184 2326
201 NM 1300 1500 1700 1900 2100
102 NM 250 289 328 367 406 445 484 523 562
122 NM 575 650 725 800 875
152 NM 820 940 1060 1180 1300
202 NM 1000 1200 1400 1600
252 NM 1800 2120 2440 2760
352 NM 3900 4475 5050

2 3 4 5 6 7 8 9 10 11 12

All motors (for masses see the motor

description plate) must be handled with a winch.

For masses above 25 kg (55 lb), manual

handling is forbidden.

2.3 Lifting

2.3.1 Slinging of motor pumps units

Use handling means in accordance with
motor pump unit mass mentioned on the CE plate.
For the masses of the pumps bare end of shaft
see table § 2.2.2 and nameplate.

To avoid distortion, the pump unit

should be lifted as shown.

A crane must be used for all pump sets in
excess of 25kg (55 Ib). Fully trained personnel
must carry out lifting, in accordance with local
regulations.

Motor pump unit

Bareshaft pump

When handling always wear gloves, safety

boots and an industrial safety helmet.

For masses above 25 kg (55 lb), manual

handling is forbidden.

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

2.4 Storage

Store the pump in a clean, dry
location away from vibration. Leave piping
connection covers in place to keep dirt and other
foreign material out of pump casing. Turn pump at
intervals to prevent brinelling of the bearings and
the seal faces, if fitted, from sticking.

Do not store pumps starting on the fan guard.
The pump may be stored as above for up to 6

months. Consult Flowserve for preservative
actions when a longer storage period is needed.

2.5 Recycling and end of product life

At the end of the service life of the product or its
parts, the relevant materials and parts should be
recycled or disposed of using an environmentally
acceptable method and local regulations. If the
product contains substances which are harmful to
the environment, these should be removed and
disposed of in accordance with current regulations.
This also includes the liquids and or gases in the
"seal system" or other utilities.

Make sure that hazardous substances or
toxic fluid are disposed of safely and that the
correct personal protective equipment is used. The
safety specifications must be in accordance with
the current regulations at all times.

3 PUMP DESCRIPTION

3.1 Configurations

The multi-stage centrifugal pump is designed for
the pumping of cold water or all clear liquids which
are not solid and liquid mixtures, non-corrosive,
non-abrasive or non-explosive when in contact
with the pump motor unit and its working parts
(Important: for other liquids consult FLOWSERVE
for beforehand advice).

The NM type pump is a centrifugal, multi-stage,
single suction and radial joint plan pump.

The pump must be stored in a non-explosive,
ventilated location, sheltered from bad weather,
dust and vibrations.

The reliability of the delivered machine can only be
ensured if it is used according to the conditions
given in this manual. The maximum values
specified in this manual must never be exceeded.

80

NM

100
NM

100
NM

• Maximum working pressure at discharge

Lamellar

Cast Iron

Pressure
in bar

32

40

50

65

NM

NM

NM

35 35 35 35 38 40* 60 40* 40* 45 25 25 30 35 40 40

NM

80

NM

* For cast iron with spheroidal graphite: 60 bars

• Maximum working pressure at suction

32

40

50

Pressure
in bar

NM

NM

10 10 10 10 10 16 16 16 16 16 10 10 10 10 16 16

NM

65

NM

125
NM

125
NM

150
NM

150
NM

200
NM

200

NM

201
NM

201

NM

102
NM

102
NM

122
NM

122
NM

152
NM

152
NM

202
NM

202
NM

252

NM

252
NM

352
NM

352
NM

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

• Maximum pumped fluid temperature

- With a stuffing box without cooling ....105 °C

- With a stuffing box and cooling..........140 °C

for the pumps 32, 40, 50, 65, 80, 100, 125,
150, 200 and 201 NM.

- With a mechanical seal without cooling

............................................................. 80 °C

• Minimum pumped fluid temperature.... -10 °C

•

Maximum solid suspension ................. 50 g/m

• Density................................................. 1

• Viscosity .............................................. 1 mm²/s

• Frequency .............. 50 Hz (1450 - 2900 min-1)

................................ 60 Hz (1750 - 3500 min-1)

- With a mechanical seal and cooling

......................................................Consult us

• Maximum number of stages (according to speed of rotation)

Speed

min-1

3500 10 7 6 6 5
2900 12 10 9 8 7
1750 12 10 9 8 7
1450 12 10 9 8 7 9 10

32

NM

40

NM

50

NM

65

NM

80

NM

* With impeller in bronze
In heavy type: Realization, which needs Ductile
cast iron.

Maximum number of stages

100

125

150

200

201

NM

NM

NM

NM

4 6

3*

6 9

5

8 9

10

6 9 6 7

9 12 8 11

102

NM

NM

4 7 5 4 4 4
6 10 6 6 5 5 4*

The maximum speed is shown on

the pump nameplate.

3.2 Nomenclature

Characteristics shown on the nameplate fixed on the pump are as shown below:
Each pump is supplied with the following nameplate:

Each pump unit is supplied with the following nameplate:

Mass of the set

Speed of rotation

Pump type

Flow rate

Head

Radial/thrust bearing

Year of construction +
Manufacture number

122
NM

152

202
NM

252
NM

NM

Mass
Maximum admissible

Pressure at 20 °C
Maximum / minimum

temperature

352
NM

3

Page 13 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

NF E 27 811

4 INSTALLATION

Equipment operated in hazardous locations
must comply with the relevant explosion protection
regulations. See section 1.6.4, Products used in

potentially explosive atmospheres.

All equipment must be grounded.

4.1 Location

The pump should be located to allow room for
access, ventilation, maintenance and inspection with
ample headroom for lifting and should be as close as
practicable to the supply of liquid to be pumped.

4.2 Foundation

There are many methods of installing
pump units to their foundations. The correct method
depends on the size of the pump unit, its location
and noise vibration limitations. Non-compliance with
the provision of correct foundation and installation
may lead to failure of the pump and, as such, would
be outside the terms of the warranty.

The base plate should be mounted onto a firm
foundation, either an appropriate thickness of quality
concrete or sturdy steel framework. It should NOT
be distorted or pulled down onto the surface of the
foundation, but should be supported to maintain the
original alignment.

Anchor bolts must be in accordance with the foot
bolt holes. Use anchor bolts of accepted standards
and sufficient to ensure seave fitting in the
foundation. Particularly, this applies to individual
plates where the anchor bolts have to withstand the
driving torque.

Provide sufficient space in the foundation to
accommodate the anchor bolts. If necessary,
provide concrete risers.

Usually the pump and its drive are mounted on a
common base plate. If not, individual base plates
underneath each machine foot shall be installed.
Base plates are to be fully grouted.

4.2.1 Setting the base plate for anchoring

a) Clean the foundation surface thoroughly.
b) Put shims on the foundation surface (approx 20-

25 mm thick), one on each side of the bolt hole
(as an alternative, leveling screws can be used).

c) Lay the base plate and level in both directions

with extra shims. The base plate should be level
to within 0.5 mm per 1 m.

d) If anchor bolts have been pre-cast in the

foundation slightly tighten the anchor bolts.
Otherwise let them hang in the foundation holes.

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

4.3 Grouting

4.3.1 Base plate grouting

a) Prepare the site for grouting. Before grouting

clean the foundation surface thoroughly and
provide external barriers as shown:

barriers

b) Prepare grouting product (concrete, resin) in

accordance with manufacturers' instructions.

4.4 Initial alignment

Before connecting the couplings

verify the motor rotation direction.

4.4.1 Thermal expansion

The pump and motor will normally
have to be aligned at ambient temperature and
should be corrected to allow for thermal expansion
at operating temperature. In pump installations
involving high liquid temperatures, the unit should be
run at the actual operating temperature, shut down
and the alignment checked immediately.

4.4.2 Alignment methods

Ensure pump and driver are isolated
electrically and the half couplings are disconnected.
Ensure that the pump pipework, suction and
discharge, is disconnected.

The alignment MUST be checked.

Although the pump will have been aligned at the
factory it is most likely that this alignment will have
been disturbed during transportation or handling. If
necessary, align the motor to the pump, not the
pump to the motor.

Alignment
Parallelism and concentricity check:

c) Use grouting products with anti-shrinking

components.

d) To grout up to the required level. Polish

surfaces. Take necessary precautions to avoid
air bubbles.

e) Lay-down the barrier, break external angles, and

polish the different surfaces.

f) After grout starts to cure, definitively tighten

anchor bolts.

g) Control the alignment such as described as

follows.

Check the alignment at three or four

points, before pipeworks assembly.

with a rule

Admissible margin for a motor with roller bearings:
= 0.15 mm parallel checking
= 0.1 mm angular checking

Angular checking:

with a comparator

with a sliding rule

with a caliper gauge

Page 15 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

The alignment will be definitive only

after pipework connection (see § 4.5.1).
If necessary, improve the machine alignment:

→

Complete unit mounted on common base plate:

The machines are first aligned accurately in our
workshops. Usually, any misalignment observed on­site is due to a wrong adjustment under the base
plate (disturbed during transport or because of
forces exerted by the pipework). It is only necessary
to rectify the adjustment under base plate. If it
proves to be insufficient, modify the motor and the
pipeworks adjustment.

→

Pump and motor mounted on individual base

plates:

Machines are (or must be) first mounted on their
own base plate in the workshop. Once the pump is
set, it will be regarded as the fixed piece. Any
alignment necessary shall be carried out on the
motor.

Never connect the electric motor

before the setting has been completely finished.

4.5 Piping

The user must verify that the equipment is

isolated from any external sources of vibration.

Protective covers are fitted to the
pipe connections to prevent foreign bodies entering
during transportation and installation. Ensure that
these covers are removed from the pump before
connecting any pipes.

4.5.1 Suction and discharge pipework

The dimensions of the pipes do not directly depend
on suction and discharge diameters of the pump:
a) First, choose a flow speed < 2 m/s at suction,

and about 3 m/s at discharge.

b) Take into account the available NPSH, which

must be superior to the required NPSH of the
pump.

These external strains may cause misalignment, hot
bearings, worn couplings, vibrations and the
possible failure of the pump casing.

When designing the pipes (§ 4.5.2.1, § 4.5.2.2, §

4.5.3.1) take necessary precautions in order not to
exceed maximum allowed strains.

Forces and moments applied to the pump flanges
must never exceed the values shown in the table
below:

Pipes

layout

perpendicular

Vertical pipework

perpendicular

Horizontal pipework

DN

flanges

32 30 40 35 60 23 27 34 49
40 30 40 35 60 23 27 34 49

50
65

80 60 75 70 120 32 36 44 65
100 80 100 90 160 36 41 50 74
125 100 125 110 200 44 52 63 92
150 120 150 135 240 53 62 75 110

to the shaft

200 162 200 180 314 69 79 97 144
250 200 250 224 390 86 99 121 180
300 242 300 269 470 129 148 182 267
350 300 375 336 586 192 221 270 400
450 363 450 403 703 255 294 359 528

32 40 30 35 60 23 27 34 49

40 40 30 35 60 23 27 34 49

50 50 40 45 80 27 30 37 54

65

80 75 60 70 120 32 36 44 65
100 100 80 90 160 36 41 50 74
125 125 100 110 200 44 52 63 92
150 150 120 135 240 53 62 75 110

to the shaft

200 200 162 180 314 69 79 97 144
250 250 200 225 390 86 99 121 180
300 300 242 269 470 129 148 182 267
350 375 300 336 586 192 221 270 400
450 450 363 403 703 255 294 359 528

Forces (daN) Moments (m.daN)

FY FZ FX

40 50 45 80 27 30 37 54
50 68 58 102 30 33 40 60

68 50 58 102 30 33 40 60

MY MZ MX

∑

∑ F

∑∑

∑

∑ M

∑∑

Never use pump as a support for

piping.

Do not mount expansion joints in
such a way that their force, due to internal pressure,
may act on the pump flange.

before use.

Ensure piping and fittings are flushed

Maximum forces and moments allowed on the pump
flanges vary with the pump size and type.

Ensure piping for hazardous liquids is
arranged to allow pump flushing before removal of
the pump.

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

Sufficient immersion : I

4.5.2 Suction piping

4.5.2.1 Design of a flooded suction line

The suction line must be as short and direct as
possible, never mount an elbow directly on the inlet
flange of the pump.

Valve

Non-return valve

Continuous flow valve

Flooded suction configuration

a) Avoid sharp elbows or sudden narrowing. Use

convergent ≤ 20° (total angle).

b) b) Arrange the pipework so that there are no air

pockets (no bulges).

c) If high points cannot be avoided in suction line,

provide them with air relief cocks.

d) If a strainer is necessary, its net area should be

three or four times the area of the suction pipe.

e) If an inlet valve is necessary, choose a model

with direct crossing.

Do not tighten flanges before the final

check (see § 4.5.4).

4.5.2.2 Design of a suction lift line

The inlet pipe must be as short and as direct as
possible, never place an elbow directly on the pump
inlet nozzle.

Valve

Non-return valve

a) Avoid sharp elbows or sudden narrowings. Use

convergents ≤ 20° (total angle) with upright
generating.

b) Arrange that the suction pipework is inclined

upwards towards the pump ensuring that there
are no peaks.

c) If a foot valve is necessary, do not oversize it

because it would generate pulsations (valve
beating).

Do not tighten flanges before the final

check (see § 4.5.4).

4.5.3 Discharge piping

4.5.3.1 Design of a discharge line

a) If discharge line is provided with a divergent, its

total angle will be between 7° and 12°.

b) Install the discharge valve after the non-return

valve downstream.

c) The non-return valve will be set in the discharge

pipe to protect the pump from any excessive
pressure surge and from reverse rotation.

If necessary, a control manometer can be connected
on the pipework.

Do not tighten flanges before the final
check (see § 4.5.4).

4.5.4 Final checks

a) Check the tightening of anchor bolts. Tighten

them if necessary.

b) Check that protective covers on suction and

discharge flanges are removed.

c) Check that holes of pipework flanges are parallel

and correspond to those of the pump.

d) Tighten suction and discharge flanges.

4.6 Electrical connections

Electrical connections must be made
by a qualified Electrician in accordance with relevant
local national and international regulations. This
includes any grounding.

Valve strainer

Sump suction configuration

I ≥ 3 x D

It is important to be aware of the EUROPEAN
DIRECTIVE on potentially explosive areas where
compliance with IEC60079-14 is an additional
requirement for making electrical connections.

Avoid mechanical, hydraulic or electrical overload
by using motor overload trips or a power monitor and
make routine vibration monitoring.

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

If there are any circumstances in which the system

It is important to be aware of the EUROPEAN
DIRECTIVE on electromagnetic compatibility when
wiring up and installing equipment on site.
Attention must be paid to ensure that the techniques
used during wiring/installation do not increase
electromagnetic emissions or decrease the
electromagnetic immunity of the equipment, wiring or
any connected devices. If in any doubt, contact
Flowserve for advice.

The motor must be wired up in
accordance with the motor manufacturer's
instructions (normally supplied within the terminal
box) including any temperature, earth leakage,
current and other protective devices as appropriate.
The identification nameplate should be checked to
ensure the power supply is appropriate.

A device to provide emergency stopping shall be
fitted.

Carry out the ground connections according to the
current local regulations.

can allow the pump to run dry, or start up empty, a
power monitor should be fitted to stop the pump or
prevent it from being started.
This is particularly relevant if the pump is handling a
flammable liquid.

If leakage of product from the pump or its associated
sealing system can cause a hazard it is
recommended that an appropriate leakage detection
system is installed.

To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring are carried out. See sections

5.6.4 and 5.6.5.
If a defect of cooling can lead to temperature higher

than those acceptable a system of cooling
surveillance must be installed.

Except when explicitly required by the customer in
the specifications, when a possibility of reverse
rotation exists the customer must install a reverse
rotation protection device.

The customer must install all equipment required to

To avoid any risk of jamming, the
direction of rotation will be checked after priming of
the pump (§ 5.4.1, 5.4.2) and before the first start (§

5.5.2).

avoid water hammer.

5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN

4.7 Final shaft alignment check

a) Check the alignment pump-motor according to

the procedure § 4.4.2. Rectify if necessary by
adjusting the motor only.

b) Check by hand that the pump turns freely.

A binding indicates a distortion of the pump,
which is due to excessive pipes strains. If
necessary the pipework design must be re­examined.

c) If it provided, connect auxiliary pipe systems

(hydraulic, pneumatic, sealing system).

d) Control tightness and functionality of auxiliary

piping.

4.8 Protection systems

The following protection systems are
recommended particularly if the pump is installed in
a potentially explosive area or is handling a
hazardous liquid. If in doubt consult Flowserve. If
there is any possibility of the system allowing the
pump to run against a closed valve or below
minimum continuous safe flow a protection device
should be installed to ensure the temperature of the
liquid does not rise to an unsafe level.

These operations must be carried out by

fully qualified personnel.

5.1 Pre-commissioning procedure

5.1.1 Lubrication

Determine the mode of lubrication of the pump set,
eg grease, oil, product lubrication etc.

For oil lubricated pumps, fill the
bearing housing with correct grade of oil to the
correct level, ie sight glass or constant level oiler
bottle.

When fitted with a constant level oiler, the bearing
housing should be filled by unscrewing or hinging
back the transparent bottle and filling the bottle with
oil. Where an adjustable body Denco oiler is fitted
this should be set to the height shown in the
following diagram:

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

Air escape

The oil filled bottle should then be refitted so as to
return it to the upright position. Filling should be
repeated until oil remains visible within the bottle.

Approximate oil volumes are shown in section

6.2.1.2, Oil lubricated bearings.
Grease lubricated pumps and electric motors are

supplied pre-greased.
Other drivers and gearboxes, if appropriate, should

be lubricated in accordance with their manuals.

5.4 Priming and auxiliary supplies

Where there is any risk of the pump being run
against a closed valve generating high liquid and
casing external surface temperatures it is
recommended that users fit an external surface
temperature protection device.

Ensure all electrical, hydraulic,
pneumatic, sealant and lubrication systems (as
applicable) are connected and operational.

Ensure the inlet pipe and pump
casing are completely full of liquid before starting
continuous duty operation.

These operations must be carried out by personnel
with approved qualifications.

5.4.1 Priming of a flooded pump

As discharge valve is closed, fill the pump by
opening the valve at suction. Let air escape by
removing the plugs situated on the flange of the
discharge casing and suction casing (for the 102­122-152-202-252-352 NM pumps). For the 32 to 201
NM pumps, plugs are located on pipework.

In the case of product lubricated
bearings the source of product supply should be
checked against the order. There may be
requirements for an external clean supply, particular
supply pressure or the commencement of lubrication
supply before pump start-up.

5.2 Direction of rotation

Starting or operating pumps with the
wrong direction of rotation can be harmful to the
pumps. Ensure that the pump rotation is the same
as the arrow on the pump casing.
It is preferable to check the direction of rotation
before installing the coupling. If not, the pump must
be filled in with the liquid before start-up.

If maintenance work has been
carried out to the site's electricity supply, the
direction of rotation should be re-checked as
above in case the

5.3 Guarding

Guarding is supplied fitted to the pump set.

If this has been removed or disturbed ensure
that all the protective guards around the pump
coupling and exposed parts of the shaft are securely
fixed.

Priming of a flooded pump

5.4.2 Priming of a sump suction pump

* With foot valve:
a) Fill suction pipe and casing with liquid from an

independent source (pressure 1 to 2 bars).

b) Let air escape by removing the plugs situated on

the flange of the discharge casing and suction
casing (for the 102-122-152-202-252-352 NM
pumps). For the 32 to 201 NM pumps, plugs are
located on pipework.

c) When the pump is totally free of air bubbles,

replace the plugs.

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NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

c) Do not run the pump with the outlet valve closed

for a period longer than 30 seconds.

d) If NO pressure, or LOW pressure, STOP the

Air escape

External source

pump. Refer to faultfinding chart for fault
diagnosis.

The pump should run smoothly and without
vibration.

The pump must never run at a capacity of less than
20 % (for 32-40-50-65-80-100-125-150-200-201
NM) or 10 % (for 102-122-152-202-252-352 NM) of
that at the best efficiency.

Priming of a sump suction pump

with foot valve

* Without foot valve:
Priming may be accomplished by means of venting
system.

Never remove a plug when the pump is

running.

5.6 Running the pump

5.6.1 Venting the pump

Foot valves are not recommended when
the pumped liquid has suspended solid particles.
They may lodge between foot valve seat and
shutter.

5.5 Starting the pump

5.5.1 Bring controls and preparation before the
first starting and after each service call

Necessarily:

a) Check the tightening of the different plugs.
b) Check that the gland lightly tightens the packing

rings.

c) Risk of seal ring overheating.
d) Check the direction of rotation of the motor.

Refer to the rotation arrow of the pump.

e) Install all protection systems and more

particularly the coupling guard and the shield

grid (reference [9331]) of the bearing.
f) Open all suction valves (if existing).
g) Close the outlet valve and the bypass valve.

h) Ensure inlet pipe and pump casing are

completely full of liquid.

5.5.2 First pump start-up

Suction valves must be fully open
when pump is running. Never run the pump dry, it
will cause damage.

a) Start motor and check outlet pressure.
b) If pressure is satisfactory, slowly OPEN outlet

valve.

Vent the pump to enable all trapped air to
escape taking due care with hot or hazardous
liquids.

Under normal operating conditions, after the pump
has been fully primed and vented, it should be
unnecessary to re-vent the pump.

5.6.2 Pump fitted with a stuffing box

If the pump has a packed gland there must be some
leakage from the gland. Gland nuts should initially
be finger tight only. Leakage should take place soon
after the stuffing box is pressurized. If no leakage
takes place the packing will begin to overheat. If
overheating takes place the pump should be
stopped and allowed to cool before being restarted.
When the pump is restarted it should be checked to
ensure leakage is taking place at the packed gland.

When adjusting an operating stuffing box
(shield grids removed for this operation) the operator
must be very careful. Safety gloves are compulsory
and loose clothes are not allowed (above all to the
arms) to avoid being caught by the pump shaft.

The pump should be run for ten minutes with steady
leakage and the gland nuts tightened by 10 degrees
at a time until leakage is reduced to an acceptable
level. The temperature of the gland should be
checked after each round of tightening. If the
temperature starts to climb rapidly then back off the
gland nuts until the temperature drops down. Wait
for the temperature to stabilize before tightening
again. The leakage must not be reduced below a
rate of 20 drops per minute. Bedding in of the
packing may take several hours.

Page 20 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

9210

4610

9220

4213

9210

9220

4213

4610

NEVER RUN A MECHANICAL SEAL

DRY, EVEN FOR A SHORT WHILE.

SAFETY INSTRUCTIONS WHEN THE PUMP IS
RUNNING:

If hot or freezing components of the machine
can present a danger to operators, they must be
shielded to avoid accidental contact. If a 100 %
protection is not possible, the machine access must
be confined to the maintenance staff only.

Shield grids being removed during installation
of the gland packing, it must be ensured that they
are replaced as soon as this operation is completed.
If hot liquids are pumped (105 °C < t ≤ 140 °C), the
stuffing box includes a thermal barrier to avoid
evaporation in the packing zone, which would
quickly destroy the gland packing.

As leakages are reduced and the cooling is made
more efficient (flow and temperature of cooling
water), it is observed that the packing gland will last
longer.

5.6.3 Pump fitted with mechanical seal

A mechanical seal ensures a seal without leakage
and does not need any adjustment. Nevertheless if a

If the temperature is greater than 80 °C, a

warning plate must be clearly placed on the pump.

The adjusting lines, the stuffing box, the lines
under pressure or the mechanical seal cooling lines
must be protected against external knocks.

It is strictly forbidden to open switch
cupboards, switch boxes, or all other live electric
equipment. If it is necessary to open them in order to
take readings, to carry out tests or adjustments for
example, only a skilled technician may do them with
adapted tools. Make sure that physical protections
against electrical risks are used.

5.6.4 Bearings

light leakage occurs during start-up, it should
disappear after the initial running in of the friction
faces.

If the pumps are working in a potentially
explosive atmosphere, temperature or vibration
monitoring at the bearings is recommended. If
bearing temperatures are to be monitored it is
essential that a benchmark temperature is recorded
at the commissioning stage and after the bearing
temperature has stabilized.

• Record the bearing temperature (t) and the

ambient temperature (ta)

• Estimate the likely maximum ambient

temperature (tb)

• Set the alarm at (t+tb-ta+5) °C [(t+tb-ta+10) °F]

Simple mechanical seal

and the trip at 100 °C (212 °F) for oil lubrication

and 105 °C (220 °F) for grease lubrication
It is important, particularly with grease lubrication, to
keep a check on bearing temperatures. After start up
the temperature rise should be gradual, reaching a
maximum after approximately 1.5 to 2 hours. This
temperature rise should then remain constant or
marginally reduce with time.

5.6.5 Normal vibration levels, alarm and trip

For guidance, pumps generally fall under a
classification for rigid support machines within the
International rotating machinery standards and the

Balanced mechanical seal

recommended maximum levels below are based on
those standards.

Page 21 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

Stopping:

Alarm and trip values for installed
pumps should be based on the actual
measurements (N) taken on site on the bearing
housings of the pump in the fully commissioned as
new condition.

The example (N) value is given for the preferred
operating flow region (typically this may extend to 70
to 120 % of the pump best efficiency point); outside
the preferred flow region the actual vibration
experienced may be multiplied by up to 2.

These standard values can vary with the rotational
speed and the power absorbed by the pump. For
any special case, do not hesitate to consult us.

a) Avoid that the unit turns in the opposite direction

to the normal running.

b) Make sure that the discharge line pressure does

not reach the foot valve.

c) Avoid a continuous running below the authorized

flow rate (see § 5.5.2).

Restart:
a) Ensure that the pump is completely full of liquid.

b) Ensure a continuous supply with a sufficient

available NPSH.

c) Ensure a backpressure so that the motor power

is not in excess.

Measuring vibration at regular intervals will then
show any deterioration in pump or system operating
conditions.

Vibration Velocity - unfiltered

Normal N
Alarm N x 1.25
Shutdown Trip N x 2.0

Horizontal Configuration

mm/s (in./s) r.m.s.

≤ 5.6 (0.22)
≤ 7.1 (0.28)

≤ 11.2 (0.44)

5.6.6 Stop/start frequency

d) Respect the starting frequency

imposed by the motor manufacturer.

e) Protect the pump against water hammer

when stopping or starting.

Shutdown:

Close the outlet valve and stop the

motor. Eventually close the inlet valve.

Pump sets are normally suitable for the number of
equally spaced stop/starts per hour shown in the
table below. Check actual capability of the driver and
control/starting system before commissioning.

Motor rating kW (hp)

Up to 15 (20) 15

Maximum stop/starts

per hour

especially when ambient temperatures are likely to
drop below freezing point, the pump and any cooling
and flushing arrangements must be drained or
otherwise protected.

For prolonged shutdowns and

5.8 Hydraulic, mechanical and electrical

Between 15 (20) and 90 (120) 10

90 (120) to 150 (200) 6

Above 150 (200) Refer

Where duty and standby pumps are installed it is
recommended that they are run alternately every
week.

5.7 Stopping and shutdown

5.7.1 Stopping and restarting in continuous
running

According to hydraulic conditions of the installation
and its automation degree, stop and restart
procedures can have different forms. Nevertheless
all of them must respect imperatively the following
rules:

duty

This product has been supplied to meet the
performance specifications of your purchase order,
however it is understood that during the life of the
product these may change. The following notes may
help the user decide how to evaluate the
implications of any change. If in doubt contact your
nearest Flowserve office.

5.8.1 Specific gravity (SG)

Pump capacity and total head in meters (feet) do not
change with SG, however pressure displayed on a
pressure gauge is directly proportional to SG. Power
absorbed is also directly proportional to SG. It is
therefore important to check that any change in SG
will not overload the pump driver or over-pressurize
the pump.

Page 22 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

5.8.2 Viscosity

For a given flow rate the total head reduces with
increased viscosity and increases with reduced
viscosity. Also for a given flow rate the power
absorbed increases with increased viscosity, and
reduces with reduced viscosity. It is important that
checks are made with your nearest Flowserve office
if changes in viscosity are planned.

5.8.3 Pump speed

Changing pump speed effects flow, total head,
power absorbed, NPSHR, noise and vibration. Flow
varies in direct proportion to pump speed, head
varies as speed ratio squared and power varies as
speed ratio cubed. The new duty, however, will also
be dependent on the system curve. If increasing the
speed, it is important therefore to ensure the
maximum pump working pressure is not exceeded,
the driver is not overloaded, NPSHA > NPSHR, and
that noise and vibration are within local requirements
and regulations.

5.8.4 Net positive suction head (NPSHA)

NPSH available (NPSHA) is the head available at the
impeller inlet, above the vapour pressure of the
pumped liquid. NPSH required (NPSHR) is the
minimum head required at the impeller inlet, above the
vapour pressure of the pumped liquid, to avoid
excessive cavitation and extreme performance
degradation.

It is important that NPSHA > NPSHR. The margin
between NPSHA > NPSHR should be as large as
possible.

If any change in NPSHA is proposed, ensure these
margins are not significantly eroded. Refer to the
pump performance curve to determine exact
requirements particularly if flow has changed.

If in doubt please consult your nearest Flowserve
office for advice and details of the minimum
allowable margin for your application.

5.8.5 Pumped flow

Flow must not fall outside the minimum and
maximum continuous safe flow shown on the pump
performance curve and or data sheet.

5.9 Pumps for Food Use or Potable
Water

If the pump has not been specifically ordered for a
food or drinking water application it must not be
used for these types of applications. If it has been
ordered for this type of application the following
recommendations are to be followed.

5.9.1 Cleaning prior to operation

Pumps that are to be used for a food or drinking
water application should be cleaned before being
put into initial operation and after the installation of
spare parts that are in contact with the liquid.

Cleaning once the pump has been commissioned
will depend on the application and operating
conditions. The user must ensure that the cleaning
procedures are suitable for the application and
operating conditions, and local regulations.

6 MAINTENANCE

6.1 General

If a belt drive is used, the assembly and
tension of the belts must be verified during regular
maintenance procedure.

In dirty or dusty environments, regular checks
must be made and dirt removed from areas around
close clearances, bearing housings and motors.

It is the plant operator's responsibility to
ensure that all maintenance, inspection and
assembly work is carried out by authorized and
qualified personnel who have adequately
familiarized themselves with the subject matter by
studying this manual in detail (see also section

1.6.2).
Any work on the machine must be performed when it

is at a standstill. It is imperative that the procedure
for shutting down the machine is followed, as
described in section 5.7.

On completion of work all guards and safety devices
must be re-installed and made operative again.
Before restarting the machine, the relevant
instructions listed in section 5, Commissioning, start
up, operation and shut down must be observed.

Oil and grease leaks may make the ground
slippery. Machine maintenance must always
begin and finish by cleaning the ground and the
exterior of the machine.

If platforms, stairs and guardrails are required for
maintenance, they must be placed for easy access
to areas where maintenance and inspection are to
be carried out. The positioning of these accessories
must not limit access or hinder the lifting of the part
to be serviced.

Page 23 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

When air or compressed inert gas is used in the
maintenance process, the operator and anyone in
the vicinity must be careful and have the appropriate
protection. DO NOT SPRAY air or compressed inert
gas on skin. DO NOT DIRECT an air or gas jet
towards other people. Never use air or compressed
inert gas to clean clothes.

Before working on the pump, take measures to
prevent an uncontrolled start. Put a warning board
on the starting device with the words:
"Machine under repair: do not start".
With electric drive equipment, lock the main switch
open and withdraw any fuses.
Put a warning board on the fuse box or main switch
with the words:

"Machine under repair: do not connect".

Never clean equipment with inflammable solvents or
carbon tetrachloride. Protect yourself against toxic
fumes when using cleaning agents.

6.2 Maintenance schedule

It is recommended that a maintenance plan
and schedule is adopted, in line with these User
Instructions. It should include the following:
a) The pump must be completely vented and

drained and rendered inert before any
disassembly operation.

b) Any auxiliary systems installed must be

monitored, if necessary, to ensure they function
correctly.

c) During cleaning of the pump ensure the

compatibility between the cleaning products and

the gaskets.
d) Verify the condition of the gaskets.
e) Gland packings must be adjusted correctly to

give visible leakage and concentric alignment of

the gland follower to prevent excessive

temperature of the packing or follower.

Mechanical seals should present no leakage.
f) Check for any leaks from gaskets and seals.

The correct functioning of the shaft seal must be

checked regularly.
g) Check bearing lubricant level, and if the hours

run show a lubricant change is required.
h) Check that the duty condition is in the safe

operating range for the pump.
i) Check vibration, noise level and surface

temperature at the bearings to confirm

satisfactory operation.
j) Check the tightness of the connections.
k) Check dirt and dust is removed from areas

around close clearances, bearing housings and

motors.
l) Check coupling alignment and re-align if

necessary.
m) Verify the correct operation of the system.

The equipment used for maintenance and
disassembly in an ATEX zone must be in conformity
with the requirements zone.

Our specialist service personnel can help with
preventative maintenance records and provide
condition monitoring for temperature and vibration to
identify the onset of potential problems.

If any problems are found the following sequence of
actions should take place:

a) Refer to section 7, Faults; causes and remedies,

for fault diagnosis.

b) Ensure equipment complies with the

recommendations in this manual.

c) Contact Flowserve if the problem persists.

Page 24 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

6.2.1 Standard maintenance

Roller bearing

6.2.1.1 Grease lubricated bearings

The bearings fitted are prepacked with grease at the
factory. When the regreasing period is reached it is
necessary to remove as much of the old grease as
possible with a clean lint free cloth and repack the
bearings with fresh grease.

Pump

type

32 NM

Lubrication frequencies in

hours of operation*

1450

1750

2900

min-1

min-1

3000 2200 1500 1200

min-1

3500
min-1

Quantity (cm3)

Opposite

side

8 8

Coupling

side

40 NM

50 NM

65 NM

80 NM

100 NM

125 NM

150 NM 2

to 4

stages

150 NM 5

to 12

stages

200 NM 2

to 3

stages

200 NM 4

to 11

stages

201 NM

102 NM

3000 2200 1500 1200

3000 2200 1500 1200 16 8

2700 2000 1400 1100 16 8

2500 1700 1300 1000 20 10

8000 6500 5500 5000 36 18

6000 5000 2500 2000 20 10

7500 6000 26 26

7500 6000 52 26

6500 5000 33 33

6500 5000 66 33

4000 3000 35 17

8000 7000 40 20

8 8

122 NM

152 NM

202 NM

252 NM

352 NM

* At least once a year.

7000 6000 30 15

6000 5000 40 20

5500 4500 60 30

5000 4000 60 30

4000 90 45

The grease used in factory for first filling is:
SHELL ALVANIA R2
Its equivalents: MOBIL : Mobilux EP 2,

TOTAL : Multis 2,
ELF : ELF MULTI

Page 25 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

6.2.1.2 Oil lubricated bearings

Normal oil change intervals are 2 000 to 3 000
operating hours or at least every 6 months. For
pumps on hot service or in severely damp or
corrosive atmosphere, the oil will require changing
more frequently.

Lubricant and bearing temperature analysis can be
useful in optimizing lubricant change intervals.

Oil Splash lubrication

Temp. maximum

lubrication

Centifugal pump

DIN51502 ISO VG

Oil companies and lubricants

(BASF Group)

Viscosity

cSt 40 ºC

ºC (ºF)

Designation

according to

BP

DEA

Elf

Esso

Mobil

Q8

Shell

Texaco

Wintershall

-5 to 65 (-23 to 149) -5 to 80 (-23 to 176) -

Rando Oil HD-AZ-32

32 68 46

HL/HLP 32

BP Energol HL32

BP Energol HLP32

Anstron HL32

Anstron HLP32

OLNA 32

HYDRELEF 32

TURBELF 32

ELFOLNA DS32

TERESSO 32

NUTO H32

Mobil DTE oil light

Mobil DTE13M

Mobil DTE24

Q8 Verdi 32

Q8 Haydn 32

Shell Tellus 32
Shell Tellus 37

Rando Oil HD 32

Wiolan HN32
Wiolan HS32

Oil volume (in liter)

Pump type

202 NM 3.8 3.8
252 NM 3.8 3.8

Drive end

bearingt

Non-drive end

bearing

6.2.2 Routine inspection (daily/weekly)

The following checks should be made
and the appropriate action taken to remedy any
deviations:
a) Check operating behavior. Ensure noise,

vibration and bearing temperatures are normal.

b) Check that there are no abnormal fluid or

lubricant leaks (static and dynamic seals) and
that any sealant systems (if fitted) are full and
operating normally.

The lubricating oil should be a high quality mineral oil
having foam inhibitors. Synthetic oils may also be
used if checks show that the rubber oil seals will not
be adversely affected.

The bearing temperature may be allowed to rise to
50 ºC (122 ºF).above ambient, but should not exceed
82 ºC (180 ºF). A continuously rising temperature, or
an abrupt rise, indicate a fault.

HL/HLP 68

BP Energol HL68

BP Energol HLP68

Anstron HL68

Anstron HLP68

TURBELF SA68

ELFOLNA DS68

TERESSO 68

NUTO H68

Mobil DTE oil heavy medium

Mobil DTE26

Q8 Verdi 68

Q8 Haydn 68

Shell Tellus 01 C 68

Shell Tellus 01 68

Rando Oil 68

Rando Oil HD C-68

Wiolan HN68
Wiolan HS68

BP Energol HLP46

Mobil DTE oil medium

Shell Tellus 01 C 46

Shell Tellus 01 46

Rando Oil HD B-46

c) Pump fitted with a stuffing box: leakage of 20

drops per minute.
d) Pump fitted with a mechanical seal: no leakage.
e) Check the level and condition of oil lubricant. On

grease lubricated pumps, check running hours

since last recharge of grease or complete

grease change.

6.2.3 Periodic inspection (six monthly)

a) Check foundation bolts for

security of attachment and corrosion.
b) Check pump-running records for hourly usage to

determine if bearing lubricant requires changing.
c) The coupling should be checked for correct

alignment and worn driving elements.

HL/HLP 46

BP Energol HL46

Anstron HL46

Anstron HLP46

TURBELF SA46

ELFOLNA DS46

TERESSO 46

NUTO H46

Mobil DTE15M

Mobil DTE25

Q8 Verdi 46

Q8 Haydn 46

Rando Oil 46

Wiolan HN46
Wiolan HS46

Page 26 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

Grease

For that purpose, wind the packing helically around

Grease

nipple

If a check shows a bad running of the

motor pump unit, the user must:

a)



Refer to the "fault finding chart" chapter 7

of this leaflet to apply the recommended
solutions.

b) Ensure that your equipment corresponds to the

arrangements of this leaflet.

c) Contact FLOWSERVE after-sales Department if

the problem persists.

6.2.4 Mechanical seals

The current maintenance is limited to seal control. It
is necessary to detect any small leakage which
announces the beginning of the deterioration of
friction faces or secondary seal elements (rings,
bellows, synthetic membranes). It is advisable to
stop the pump as soon as possible. Have an
approved seal vendor replace or repair the seal.

6.2.5 Gland packing

6.2.5.1 Pump fitted with a packed gland

A well run in and correctly adjusted packing gland
requires little maintenance.
If, after some time, the leakage becomes too great,
the gland should be tightened again in order to
return these to a normal level.

If re-tightening is not possible, new packing must be
installed

6.2.5.2 Gland packing inspection and removal

a) Remove the shield guards.
b) Slide back the gland.
c) Remove the packing rings with an extractor

designed for this purpose (including the lantern
ring if it exists; note its position and its direction
of rotation).

d) Inspect the state of the sleeve surface; the

presence of many marked grooves will indicate
that it must be replaced.

e) Carefully clean the different pieces of the

packing gland.

6.2.5.3 Gland packing fitting

If the packing is supplied as cord the packing must
be cut so that the external diameter is lightly
tightened and there is an initial gap between the
sleeve and the packing ring.

nipple

the shaft sleeve or a chuck of the same diameter.
(Take precautions to avoid damaging sleeve)

Example of straight cut Example of bevel cut

Ensure a tightening on the stuffing

box housing and not on the sleeve.

SETTING OF PACKING

Follow the instructions:
a) Assemble of the packing in S.
b) Stagger by about 90° between two rings.
c) Assemble packing after packing.

After setting the last packing ring, secure the
packing with the gland and tighten the nut by hand.

After tightening, the shaft should turn by hand as
easily as before the setting of the packing.

Page 27 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

Suction

Discharge

Suction

Discharge

Suction

PUMPS

32 NM
40 NM
50 NM
65 NM

80 NM
100 NM
125 NM
150 NM
200 NM
201 NM
102 NM
122 NM
152 NM
202 NM
252 NM
352 NM

DIMENSIONS IN MILLIMETRES PACKINGS

D1 D2 D3 D4 D5 L1  Lgh

22 30 46 70 M10 48 8 120
24 36 52 75 M10 50 8 138
26 36 52 75 M10 57 8 138
32 42 58 82 M12 57 8 157
36 46 66 90 M12 72 10 176
45 57 81 105 M10 89 12 217
56 71 95 135 M12 54 12 261
60 76 104 140 M12 100 14 283
65 80 108 140 M14 104 14 295
75 100 132 180 M16 88 16 365
45 55 75 100 M12 45 10 205
55 70 95 135 M12 78 12 260
65 80 109 150 M16 91 14 297
75 100 132 180 M16 104 16 365
75 100 132 180 M16 104 16 365

105 125 165 224 M20 130 20 456

For the number of packings, see the different
drawings below:

32 to 40 NM

100-150 and 200 NM

Suction

125 NM

201NM

Suction

Discharge

Discharge

Discharge

50, 65 and 80 NM

1st stage

1st stage

32 NM-40 NM (2 to 8 stages)

40 NM (9 to 10 stages)

50 NM (2 to 7 stages)
65 NM (2 to 6 stages)
80 NM (2 to 5 stages)

50 NM (8 to 9 stages)
65 NM (7 to 8 stages)

80 NM (6 to 7 stages)

102-122-152-202-252-352 NM

Cooling of stuffing box, 105 °C < t ≤ 140 °C

40 NM

Pump type 32 NM

Quantity of

cooling

water in

liters/hour

100 150 200 250 400 1100

50 NM

65 NM
80 NM

100
NM

150

200

NM

NM

Page 28 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

100 NM

32 NM
40 NM

50 NM
65 NM
80 NM

150 NM
200 NM

The stuffing box includes a thermal barrier, which
ensures the cooling of the pumped liquid before it
reaches the packing.

The flows of cooling water, inlet temperature 20 °C
are given for a pumped water temperature of 140
°C.

6.2.6 Internal coating

If the pump has an internal coating, this coating
must be inspected periodically. Any wear or cracks
of the coating found must be immediately repaired.
Failure to do this may lead to accelerated wear of
the coating during operation and corrosion of the
exposed base metal, depending on the material and
pumped liquid. Special attention must be paid to the
coating edges. Any loss of coating material is
considered to be normal wear and tear on the pump
and is not considered as warranty. Flowserve has
applied the coatings according to the supplier's
instructions but will not be held responsible for
coating wear or cracks that may develop over time.

6.3 Spare parts

6.3.1 Ordering of spares
Flowserve

keeps records of all pumps that have
been supplied. When ordering spares the following
information should be quoted:

1) Pump serial number

2) Pump size.

3) Part name

4) Part number

5) Number of parts required.

The pump size and serial number are shown on the
pump nameplate.

To ensure continued satisfactory operation,
replacement parts to the original design specification
should be obtained from Flowserve. Any change to
the original design specification (modification or use
of a non-standard part) will invalidate the pump’s
safety certification.

6.3.2 Storage of spares

Spares should be stored in a clean dry area away
from vibration. Inspection and re-treatment of
metallic surfaces (if necessary) with preservative are
recommended at 6 monthly intervals.

6.4 Recommended spares and
consumable items

102-122-152-202-252-352 NM

:
[2210] - [2250] - [1500] - [4130] - [4590] - [4610] ­[4610] - [3011] - [3012]

32-40-50-65-80-100-125-150-200-201 NM

:
[1500] - [2250] - [3011] - [3012] - [3312] - [4130] ­[4590] - [4610]

a) Destroy all the gaskets after dismantling, replace

them when reassembling.

b)

IT IS RECOMMENDED THAT
BEARINGS ARE NOT REUSED AFTER ANY
REMOVAL FROM THE SHAFT.

c) After serving during two years, replace the gland

packing.

6.5 Disassembly

Refer to section 1.6,

Maintenance

, before dismantling the pump.

Before dismantling the pump for
overhaul, ensure genuine Flowserve replacement
parts are available. Refer to sectional drawings for
part numbers and identification.

Safety

, and section 6

Page 29 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

REPAIR OF THE PUMP

If the pump presents abnormalities or a

persistent malfunction, contact immediately:

FLOWSERVE

After-sales Service
Tel.: [phone]

(33) 2 43 40 57 57

Fax.: [phone]

(33) 2 43 40 58 17

According to the After-sales Service instructions,
disassembly will be limited to the dismantling of the
pump.

a)

POWER.

b) Close the inlet valve (if fitted) and outlet valve.
c) Wait for the moment when the pump casing is

cooled and at ambient temperature.

d)
e) Dismantle inlet and outlet pipeworks as well as

f)

REASSEMBLY WILL BE CARRIED OUT UNDER
FLOWSERVE' RESPONSABILITY, EITHER
DIRECTLY BY THE AFTER-SALES SERVICE OR
BY OTHER FLOWSERVE-AGENTS WHO WILL
GET THE REQUIRED INSTRUCTIONS AND
APPROVALS. THIS IS THE CASE OF
AUTHORIZED REPAIRERS WHOSE ADDRESSES
AND TELEPHONE NUMBERS WILL BE GIVEN
ON REQUEST.

DRAIN PUMP.

all pipeworks.

REMOVE PUMP TAKING INTO
ACCOUNT SAFETY (§ 1) AND HANDLING
(§ 2.2) PROCEDURES.

ANY DISASSEMBLY, REPAIR OR

DISCONNECT THE UNIT FROM

Page 30 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

7 FAULTS; CAUSES AND REMEDIES

POSSIBLE CAUSES SOLUTIONS

 
 



  










   
   



   



Insufficient pressure
Pump looses prime after starting

POSSIBLE CAUSES SOLUTIONS



Rotation speed too low (check the driver)

 

Presence of air - Check and deaerate



Suction pressure insufficient - Check the available NPSH > the required NPSH



Mechanical defects - CONSULT FLOWSERVE



Air leak in the suction pipe - Check suction pipe is airtight



Restriction in suction pipe - Check diameter of suction pipe



Suction level too low - Check the NPSH >NPSH



Obstruction of suction pipe - Check condition of pipe



Defective gland packing on the shaft - Check and replace all the gland packing.



Defective gasket - CONSULT FLOWSERVE

Insufficient flow rate
Irregular pump running
Driver overloaded
Mechanical seal leak
Equipment vibration
Excessive pump casing temperature

 

Pump or suction pipe not completely filled - Check and complete filling



Air bubbles in pipes - Check and desecrate the pipes

 

Suction level too low - Check: the available NPSH > the required NPSH



Wrong rotation - Reverse 2 phases on motor terminal boxes
The motor is running on 2 phases only - Check and control the motor electrical power supply
Motor running too low



Total manometric head system higher than
pump differential head



Total manometric head system lower than
pump differential head

 

Pipes (valves, filter...) - Control, dismantle and clean

 

Insufficient flow rate

Worn wear-ring surfaces - Foresee pump mending. CONSULT FLOWSERVE
Seizure, jamming - CONSULT FLOWSERVE
Excessive strains on flanges

Defective gland packing on the shaft - Check and replace all the gland packing parts

Defective motor bearings - CONSULT FLOWSERVE



Specific gravity or viscosity of liquid too high - Consult our local agent to analyse the problem



Misalignment - Check the alignment of the pump and of its driver



Foundations not sufficiently rigid

- Reduce geometrical suction lift

- Reduce head losses in pipes and in fittings (diameter
increase and appropriate fitting positions)

- Check valves and strainers

- Check the immersion head of the suction valve

- Check the connection in the terminal box according to the
voltage

- Check the discharge head

- Check the head losses in discharge pipes (partly closed valve,
foreign particles, back pressure too high)

- Modify the installation or change the pump set

- Throttle at discharge valve or trim the impeller (contact our
local agent): CONSULT FLOWSERVE

- Check the suction and discharge pipes (valves, back
pressure)

- Check the flange connections and eliminate strains (pipe
positioning or elastic sleeves mounting)

- Mechanical seal: CONSULT FLOWSERVE

- Check the setting of base plates: tightening, bad adjustment,
seal

- Check the connection in the terminal box according to the
voltage

- Reduce geometrical suction lift

- Reduce head losses in pipes and in fittings (diameter increase
and appropriate fitting positions)

- Check valves and strainers

- Check the immersion head of the suction valve

- Mechanical seal: CONSULT FLOWSERVE

Page 31 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8 PARTS LIST AND DRAWINGS

8.1 Sectional drawings

8.1.1 Pumps 102 NM

Page 32 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.2 Pumps 122 NM

Page 33 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.3 Pumps 152 NM, 202 NM

Page 34 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.4 Pumps 252 NM

Page 35 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.5 Pumps 352 NM

Page 36 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.6 Pumps 32 NM, 40 NM

Pump with stuffing box
pressure drop
32 NM 11 and 12 stages
40 NM 8 and 10 stages

Page 37 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.7 Pumps 50 NM, 65 NM, 80 NM

Pump with stuffing box
pressure drop
50 NM 8 and 9 stages
65 NM 7 and 8 stages
80 NM 6 and 7 stages

Page 38 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.8 Pumps 100 NM A, 150 NM, 200 NM A

Page 39 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.9 Pumps 100 NM B, 200 NM B

Page 40 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.1.10 Pumps 125 NM, 201 NM

Page 41 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.2 Sectional drawings part list

8.2.1 Parts list pumps 102 NM

8.2.2 Parts list pumps 122 NM

N DESIGNATION N DESIGNATION

N DESIGNATION N DESIGNATION

1130

Suction casing

4120

Stuffing box gland

1130

1140

1160

1410-01

1410-02

1500-01

1500-02

2110

2250

2410

2450

2460-01

2460-02

2460-03

2471-01

2471-02

Suction casing

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Interstage sleeve

Shaft sleeve

Spacer sleeve

Spacer sleeve

Spacer

Inner race centring

sleeve (bearing)

Inner race centring

sleeve (bearing)

3863

4120

4130

4131

4300

4590

4610-01

4610-02

4610-03

6515

6541

6571

6572

6577-01

6577-02

6578

Grease regulator

Stuffing box gland

Gland packing

Follower

Radial lip seal

Gasket
Round section joint

ring
Round section joint

ring
Round section joint

ring
Drain plug

Lockwasher

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Threaded plug

1140

1160

1410-01

1410-02

1500-01

1500-02

2110

2250

2410

2450

2460-01

2460-02

2460-03

2471-01

2471-02

2540

2905

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Interstage sleeve

Shaft sleeve

Spacer sleeve

Spacer sleeve

Spacer

Inner race centring
sleeve (bearing)

Inner race centring
sleeve (bearing)

Thrower

Washer

4130

4131

4134

4300

4590

4610-01

4610-02

4610-03

4610-04

6515

6541

6569

6571

6572

6577-01

6577-02

6577-03

Gland packing

Follower

Lantern ring

Radial lip seal

Gasket
Round section joint

ring
Round section joint

ring
Round section joint

ring
Round section joint

ring
Drain plug

Lockwasher

Plug

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

2540

3011

3012

3200

3261

3263

3712

3853

Thrower

Radial ball bearing

Radial roller

bearing

Bearing housing

Bearing cover,

drive side

Bearing cover,

non-drive side

Bearing nut

Grease nipple

6581-01

6581-02

6700-01

6700-02

6700-03

6700-04

9331

Hexagon nut

Hexagon nut

Key

Key

Key

Key

Cover plate

3011

3012

3200

3261

3263

3712

3853

3863

4110

Radial ball bearing
Radial roller

bearing
Bearing housing
Bearing cover,

drive side
Bearing cover,

non-drive side
Bearing nut

Grease nipple

Grease regulator
Stuffing box

housing

6578-01

6578-02

6581-01

6581-02

6700-01

6700-02

6700-03

9331

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Cover plate

Page 42 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.2.3 Parts list pumps 152 NM,202 NM

N DESIGNATION N DESIGNATION

1130

1140

1160

1410-01

1410-02

1500

2110

2250

2410

2450

2460-01

2460-02

Suction casing

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Pump shaft

Impeller

Interstage sleeve

Shaft sleeve

Spacer sleeve

Spacer sleeve

4120

4130

4131

4134

4300

4590

4610-01

4610-02

4610-03

4610-04

6515

6541

Stuffing box gland

Gland packing

Follower

Lantern ring

Radial lip seal

Gasket
Round section joint

ring
Round section joint

ring
Round section joint

ring
Round section joint

ring
Drain plug

Lockwasher

8.2.4 Parts list pumps 252 NM

N DESIGNATION N DESIGNATION

1130

1140

1160

1410-01

1410-02

1500

2110

2250

2410

2450

2460-01

2460-02

2460-03

Suction casing

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Pump shaft

Impeller

Interstage sleeve

Shaft sleeve

Spacer sleeve

Spacer sleeve

Spacer

4110

4120

4130

4131

4300

4590

4610-01

4610-02

4610-03

4610-04

6515

6541

6569

Stuffing box housing

Stuffing box gland

Gland packing

Follower

Radial lip seal

Gasket
Round section joint

ring
Round section joint

ring
Round section joint

ring
Round section joint

ring
Drain plug

Lockwasher

Plug

2460-03

2471-01

2471-02

2540

2905

3011

3012

3200

3261

3263

3712

3853

3863

4110

Spacer

Inner race centring

sleeve (bearing)

Inner race centring

sleeve (bearing)

Thrower

Washer

Radial ball bearing

Radial roller

bearing

Bearing housing

Bearing cover,

drive side

Bearing cover,

non-drive side

Bearing nut

Grease nipple

Grease regulator

Stuffing box

housing

6569

6571

6572

6577-01

6577-02

6577-03

6578-01

6578-02

6581-01

6581-02

6700-01

6700-02

6700-03

9331

Plug

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Cover plate

2471-01

2471-02

2540

2905

2910

3011

3012

3200

3261

3263

3712

3853

3863

3190

Inner race centring
sleeve (bearing)

Inner race centring
sleeve (bearing)

Thrower

Washer

Shaft nut

Radial ball bearing
Radial roller

bearing
Bearing housing
Bearing cover,

drive side
Bearing cover,

non-drive side
Bearing nut

Grease nipple

Grease regulator

Foot

6571

6572

6577-01

6577-02

6577-03

6577-04

6578-01

6578-02

6581-01

6581-02

6700-01

6700-02

6700-03

9331

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Cover plate

Page 43 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.2.5 Parts list pumps 352 NM

N DESIGNATION N DESIGNATION

1130

1140

1160

1410-01

1410-02

1500-01

1500-02

1500-03

2110

2210

2250

2410

2450

Suction casing

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Casing wear ring

Casing wear ring

Pump shaft

Impeller, suction

stage

Impeller

Interstage sleeve

Shaft sleeve

3863

3190

4110

4120

4130

4131

4300

4590

4610-01

4610-02

4610-03

4610-04

6515

Grease regulator

Foot
Stuffing box

housing
Stuffing box gland

Gland packing

Follower

Radial lip seal

Gasket
Round section joint

ring
Round section joint

ring
Round section joint

ring
Round section joint

ring
Drain plug

8.2.6 Parts list pumps 32 NM, 40 NM

N DESIGNATION N DESIGNATION

1130

1140

1150-01

1150-02

1410

1500-01

1500-02

2110

2250-01

2250-02

2400

2450-01

Suction casing

Discharge casing

Stage casing

Stage casing

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Impeller

Sleeve

Shaft sleeve

4132

4134-01

4134-02

4420

4590-01

4590-02

4610-01

4610-02

6515

6523

6544

6571

Stuffing box neck
bush

Lantern ring

Lantern ring

Sealing pipe

Gasket

Gasket
Round section joint

ring
Round section joint

ring
Drain plug

Air release valve

Circlip

Tie bolt

2460-01

2460-02

2460-03

2471-01

2471-02

2540

2905

2910

3011

3012

3200

3261

3263

3712

3853

Spacer sleeve

Spacer sleeve

Spacer

Inner race centring

sleeve (bearing)

Inner race centring

sleeve (bearing)

Thrower

Washer

Shaft nut

Radial ball bearing

Radial roller

bearing

Bearing housing

Bearing cover,

drive side

Bearing cover,

non-drive side

Bearing nut

Grease nipple

6541

6569

6571

6572

6577-01

6577-02

6577-03

6577-04

6578

6581-01

6581-02

6700-01

6700-02

6700-03

9331

Lockwasher

Plug

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

Hexagon head bolt

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Cover plate

2450-02

2471

2540

3011

3012

3140

3240-01

3240-02

3712

3853

3863-01

3863-02

4120

4130

Shaft sleeve

Inner race centring
sleeve (bearing)

Thrower

Radial ball bearing
Radial roller

bearing
Bearing lantern

Bearing carrier

Bearing carrier

Bearing nut

Grease nipple

Grease regulator

Grease regulator

Gland

Gland packing

6572-01

6572-02

6577

6578-01

6578-02

6578-03

6581-01

6581-02

6581-03

6700-01

6700-02

6700-03

6812

9331

Stud

Stud

Hexagon head bolt

Threaded plug

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Hexagon nut

Key

Key

Key

Grooved pin

Cover plate

Page 44 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.2.7 Parts list pumps 50 NM, 65 NM, 80 NM

N DESIGNATION N DESIGNATION

1130

1140

1150-01

1150-02

1410

1500-01

1500-02

2110

2250

2400

2450-01

2450-02

2471

2540

3011

3012

3140

3240-01

3240-02

3712

3853

3863-01

3863-02

4120

4130

Suction casing

Discharge casing

Stage casing

Stage casing

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Sleeve

Shaft sleeve

Shaft sleeve

Inner race centring

sleeve (bearing)

Thrower

Radial ball bearing

Radial roller

bearing

Bearing lantern

Bearing carrier

Bearing carrier

Bearing nut

Grease nipple

Grease regulator

Grease regulator

Gland

Gland packing

4132

4134-01

4134-02

4420

4590-01

4590-02

4610-01

4610-02

6515

6523

6544

6571

6572-01

6572-02

6577

6578-01

6578-02

6581-01

6581-02

6581-03

6700-01

6700-02

6700-03

6812

9331

Stuffing box neck
bush

Lantern ring

Lantern ring

Sealing pipe

Gasket

Gasket
Round section joint

ring
Round section joint

ring
Drain plug

Air release valve

Circlip

Tie bolt

Stud

Stud

Hexagon head bolt

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Hexagon nut

Key

Key

Key

Grooved pin

Cover plate

8.2.8 Parts list pumps 100 NM A, 150 NM, 200 NM
A

N DESIGNATION N DESIGNATION

1130

1140

1150-01

1150-02

1410

1500-01

1500-02

2110

2250

2400

2410

2450

2460

2471-01

2471-02

2540

2905

3011

3012

3200-01

3200-02

3261

3263

3312

3712

3853

3863

Suction casing

Discharge casing

Stage casing

Stage casing

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Sleeve

Interstage sleeve

Shaft sleeve

Spacer
Inner race centring

sleeve (bearing)
Inner race centring

sleeve (bearing)

Thrower

Washer

Radial ball bearing
Radial roller

bearing
Bearing housing

Bearing housing

Bearing cover

Bearing cover
Bearing bush –

delivery side
Bearing nut

Grease nipple

Grease regulator

4130

4134

4420

4610-01

4610-02

6515-01

6515-02

6541

6544

6569

6571-01

6571-02

6572

6577-01

6577-02

6578-01

6578-02

6578-03

6581-01

6581-02

6700-01

6700-02

6700-03

6700-04

6810

6814-01

6814-02

Gland packing

Lantern ring

Sealing pipe
Round section joint

ring
Round section joint

ring
Drain plug

Drain plug

Lockwasher

Circlip

Plug

Tie bolt

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Threaded plug

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Key

Pin

Grub screw

Grub screw

4120

Gland

9331

Cover plate

Page 45 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.2.9 Parts list pumps 100 NM B, 200 NM B

N DESIGNATION N DESIGNATION

1130

1140

1150-01

1150-02

1410

1500-01

1500-02

1500-03

1500-04

2110

2210

2250

2400

2410

2450

2460

2471-01

2471-02

2540

2905

3011

3012

3200-01

3200-02

3261

3263

3312

3712

3853

3863

Suction casing

Discharge casing

Stage casing

Stage casing

Diffuser

Casing wear ring

Casing wear ring

Casing wear ring

Casing wear ring

Pump shaft

Impeller, suction

stage

Impeller

Sleeve

Interstage sleeve

Shaft sleeve

Spacer

Inner race centring

sleeve (bearing)

Inner race centring

sleeve (bearing)

Thrower

Washer

Radial ball bearing

Radial roller

bearing

Bearing housing

Bearing housing

Bearing cover

Bearing cover

Bearing bush –

delivery side

Bearing nut

Grease nipple

Grease regulator

4120

4130

4134

4420

4610-01

4610-02

6515-01

6515-02

6541

6544

6569

6571-01

6571-02

6572

6577-01

6577-02

6578-01

6578-02

6578-03

6581-01

6581-02

6700-01

6700-02

6700-03

6700-04

6810

6814-01

6814-02

9331

Gland

Gland packing
Lantern ring

Sealing pipe
Round section joint

ring
Round section joint

ring
Drain plug

Drain plug

Lockwasher

Circlip

Plug

Tie bolt

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Threaded plug

Threaded plug

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Key

Pin

Grub screw

Grub screw

Cover plate

8.2.10 Parts list pumps 125 NM, 201 NM

N DESIGNATION N DESIGNATION

1130

1140

1160

1410-01

1410-02

1500-01

1500-02

2110

2250

2410

2450

2460-01

2460-02

2471

2540

2905-01

2905-02

3011

3012

3126

3190

3200

3261

3263

3712-01

3712-02

3853

3863

4110

Suction casing

Discharge casing

Stage casing

Diffuser

Diffuser

Casing wear ring

Casing wear ring

Pump shaft

Impeller

Interstage sleeve

Shaft sleeve

Spacer sleeve

Spacer
Inner race centring

sleeve (bearing)
Thrower

Washer

Washer

Radial ball bearing
Radial roller

bearing
Shim

Foot

Bearing housing

Bearing cover

Bearing cover

Bearing nut

Bearing nut

Grease nipple

Grease regulator
Stuffing box

housing

4120

4130

4131

4610-01

4610-02

4610-03

4610-04

6262

6515-01

6515-02

6541-01

6541-02

6569

6571-01

6571-02

6572

6577-01

6577-02

6578

6581-01

6581-02

6700-01

6700-02

6700-03

6812

6870

9221

9331

Stuffing box gland

Gland packing

Follower
Round section joint

ring
Round section joint

ring
Round section joint

ring
Round section joint

ring
Balance pipe

Drain plug

Drain plug

Lockwasher

Lockwasher

Plug

Tie bolt

Tie bolt

Stud

Hexagon head bolt

Hexagon head bolt

Threaded plug

Hexagon nut

Hexagon nut

Key

Key

Key

Grooved pin

Pipe union

Pipe bend

Cover plate

Page 46 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

8.3 General arrangement drawing

The typical general arrangement drawing and any
specific drawings required by the contract will be sent
to the Purchaser separately unless the contract
specifically calls for these to be included into the User
Instructions. If required, copies of other drawings
sent separately to the Purchaser should be obtained
from the Purchaser and retained with these User
Instructions.

9 CERTIFICATION

Certificates determined from the Contract
requirements are provided with these instructions
where applicable. Examples are certificates for CE
marking, ATEX marking etc. If required, copies of
other certificates sent separately to the Purchaser
should be obtained from the Purchaser for retention
with these User Instructions.

10 OTHER RELEVANT
DOCUMENTATION AND MANUALS

10.1 Supplementary User Instructions

Supplementary instructions such as for a driver,
instrumentation, controller, seals, sealant system etc
are provided as separate documents in their original
format. If further copies of these are required they
should be obtained from the supplier for retention
with these User Instructions.

10.2 Change notes

If any changes, agreed with Flowserve Pump Division,
are made to the product after its supply, a record of the
details should be maintained with these User
Instructions.

10.3 Additional sources of information

Reference 1:

NPSH for Rotor dynamic Pumps: a reference guide,
Euro pump Guide No. 1, Euro pump & World Pumps,
Elsevier Science, United Kingdom, 1999.

Reference 2:

Pumping Manual, 9th edition, T.C. Dickenson,
Elsevier Advanced Technology, United Kingdom, 1995.

Reference 3:

Pump Handbook, 2nd edition, Igor J. Karassik et al,
McGraw-Hill Inc., New York, 1993.

Reference 4:

ANSI/HI 1.1-1.5, Centrifugal Pumps - Nomenclature,
Definitions, Application and Operation.

Reference 5:

ANSI B31.3 - Process Piping.

Page 47 of 48

NM USER INSTRUCTIONS ENGLISH 71576289 - 11/09

www.flowserve.com

Your

Flowserve factory contacts:

Repair & Service Fax:

+33 2 43

40 58 17

FLOWSERVE REGIONAL

Flowserve Pompes
Route d'Angers - 72234 ARNAGE
BP 305, 72001 LE MANS Cedex, France

Telephone (24 hours): [phone]
Sales & Admin: [phone]

Local Flowserve factory representatives:

North America:
Flowserve
5310 Taneytown Pike, PO Box 91
Taneytown, MD 21787-0091, USA

Telephone: [phone]
Customer Service FAX: [phone]
Parts inquiry/Order PH: [phone]

South America:
Flowserve do Brasil Ltda
Av. Don Helder Camara, 5451
20771-001 Rio de Janerio

Tel: [phone]
Fax: [phone]

To find your local Flowserve representative please
use the Sales Support Locator System found at

SALES OFFICES:

USA and Canada

Flowserve Corporation
5215 North O’Connor Blvd.,
Suite 2300
Irving, Texas 75039-5421 USA
Telephone [phone]
Fax [phone]

Europe, Middle East, Africa

Worthing S.P.A.
Flowserve Corporation
Via Rossini 90/92
20033 Desio (Milan) Italy
Telephone [phone]
Fax [phone]

Latin America and Caribbean

Flowserve Corporation
6840 Wynnwood Lane
Houston, Texas 77008 USA
Telephone [phone]
Fax [phone]

Asia Pacific

Flowserve Pte. Ltd
10 Tuas Loop
Singapore 637345
Telephone [phone]
Fax [phone]