Flowserve MPT User Manual
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
®
®
Pump Division
Type MPT
Centrifugal Pumps
USER INSTRUCTIONS:
INSTALLATION, OPERATION, MAINTENANCE
PCN=85392699 07-09 (E)
These instructions must be read prior to installing,
operating, using and maintaining this equipment.
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MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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CONTENTS
Page
CONTENTS...............................................................2
1 INTRODUCTION AND SAFETY ...........................4
1.1 General ...........................................................4
1.2 CE marking and approvals..............................4
1.3 Disclaimer .......................................................4
1.4 Copyright.........................................................4
1.5 Duty conditions................................................4
1.6 Safety..............................................................5
1.6.1 Summary of safety markings..................5
1.6.2 Personnel qualification and training........5
1.6.3 Safety action...........................................5
1.6.4 Products used in potentially explosive
atmospheres ..........................................6
1.7 Safety Labels ..................................................9
1.7.1 Nameplates.............................................9
1.7.2 Warning labels........................................9
1.8 Noise level.....................................................10
2 TRANSPORT AND STORAGE...........................11
2.1 Consignment receipt and unpacking............. 11
2.2 Handling........................................................ 11
2.3 Lifting............................................................. 11
2.4 Storage.......................................................... 11
2.4.1 Storage – General.................................12
2.4.2 Storage – Long Term ............................12
2.5 Recycling and end of product life..................12
3 DESCRIPTION ....................................................12
3.1 General .........................................................12
3.2 Design of major parts....................................13
3.2.1 Pump casing.........................................13
3.2.2 Valve flap ..............................................13
3.2.3 Impeller.................................................13
3.2.4 Wear plate.............................................13
3.2.5 Cover Plate...........................................13
3.2.6 Shaft......................................................13
3.2.7 Stuffing box (Seal housing)...................13
3.2.8 Shaft seal..............................................13
3.2.9 Bearing housing....................................13
3.2.10 Pump bearings and lubrication...........13
3.2.11 Impeller adjustment.............................13
3.2.12 Driver ..................................................13
3.2.13 Flexible coupling..Error! Bookmark not
defined.
3.2.14 Coupling guards..................................14
3.2.15 Baseplates..........................................14
3.3 Performance and operating limits.................14
3.3.1 Performance .........................................14
3.3.2 Pressure limits ......................................14
3.3.3 Flange loads .........................................14
3.3.4 Pump lubricant data..............................15
3.3.5 Recommended bolting and screw
torques ................................................. 15
3.3.6 Temperature limitations.........................15
4 INSTALLATION....................................................15
4.1 Location .........................................................15
4.2 Foundation......................................................15
4.2.1 Install pump units ..................................15
4.2.2 Mount baseplate....................................15
4.2.3 Install baseplate ....................................16
4.3 Grouting.........................................................16
4.3.1 Grouting foundation bolts......................16
4.3.2 Grouting baseplate................................16
4.3.3 Grouting baseplate prevents movement
..............................................................16
4.4 Initial alignment..............................................16
4.4.1 Thermal expansion................................16
4.4.2 Alignment methods................................16
4.5 Piping.............................................................17
4.5.1 Protective covers...................................17
4.5.2 Forces and moments on pump flanges.17
4.5.3 Inlet pipe................................................17
4.5.4 Flow and pump suction .........................17
4.5.5 Fitting valves and easy maintenance....17
4.5.6 Piping and fittings should be flushed
before use.............................................17
4.5.7 Corrosive liquids....................................17
4.6 Electrical Connections...................................17
4.6.1 Qualified electrician...............................17
4.6.2 Wiring motor..........................................18
4.6.3 Emergency stopping..............................18
4.6.4 Rotation direction ..................................18
4.7 Final shaft alignment check...........................18
5 COMISSIONING STARTUP, OPERATION, AND
SHUTDOWN.......................................................18
5.1 Making ready for operation............................18
5.1.1 Lubrication.............................................18
5.1.2 Pre-operation check list..........................18
5.2 Starting the pump ...........................................19
5.2.1 Start-up..................................................19
5.2.2 Priming plug ..........................................19
5.2.3 Discharge line........................................19
5.2.4 Correct rotation......................................19
5.2.5 Check outlet pressure and flow.............19
5.2.6 Pressure................................................19
5.2.7 Outlet valve ...........................................19
5.2.8 Check the pump unit for vibration or
overheating...........................................19
5.3 Running .........................................................19
5.3.1 Mechanical seals...................................19
5.3.2 Stop/start frequency ..............................19
5.4 Stopping and shutdown..................................19
5.4.1 Close the outlet valve............................19
5.4.2 Stop the pump.......................................19
5.4.3 Prolonged shutdowns............................19
6 MAINTENANCE ...................................................20
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MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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6.1 Maintenance schedule ..................................20
6.1.1 Routine inspection (daily/weekly) ......... 20
6.1.2 Periodic inspection (6 monthly) ............20
6.2 Lubrication data.............................................20
6.2.1 Oil lubricated bearings and mechanical
seals.....................................................20
6.3 Mechanical seals...........................................20
6.4 Dismantling ...................................................20
6.4.1 General.................................................20
6.4.2 Dismantling the pump........................... 20
6.4.3 Genuine Flowserve parts......................20
6.4.4 Part numbers and identification............21
6.4.5 Replacing coupling parts ......................21
6.4.6 Complete disassembly..........................21
6.5 Examination of parts .....................................21
6.5.1 Used parts.............................................21
6.5.2 Casing, impeller, wear plate, and seal
housing.................................................21
6.5.3 Shaft, keys, and impeller setscrew.......21
6.5.4 Gaskets, O-rings, and lip seals.............21
6.5.5 Bearings................................................22
6.5.6 Suction flange and flap valve................22
6.5.7 Mechanical seal....................................22
6.6 Assembly.......................................................22
6.6.1 To assemble the pump consult the
sectional drawings................................22
6.6.2 Prepare.................................................22
6.6.3 Bearings................................................22
6.6.4 Mechanical seal....................................22
6.6.5 Impeller.................................................22
6.6.6 Suction flange.......................................22
6.6.7 Coverplate/wear plate...........................22
6.6.8 Back pull-out assembly/case................23
6.6.9 Lubrication ............................................23
6.6.10 Final assembly.....................................23
6.7 Spare Parts ...................................................23
6.7.1 Ordering of spares................................23
6.7.2 Pump details.........................................23
6.7.3 Genuine parts .......................................23
6.7.4 Recommended spares..........................23
6.7.5 Storage of spares..................................24
8.7 General Arrangement Drawing.................Error!
Bookmark not defined.
9 CERTIFICATION..................................................37
10 OTHER RELEVANT DOCUMENTATION AND
MANUALS...........................................................37
10.1 Supplementary Instruction Manuals............37
10.2 Change notes ..............................................37
7 FAULTS; CAUSES AND REMEDIES..................23
8 PARTS LIST AND DRAWINGS...........................27
8.1 Sectional Arrangement and Parts List
Drawings – MODEL 20 .................................. 27
8.2 Sectional Arrangement and Parts List
Drawings – MODEL 30 .................................. 29
8.3 Sectional Arrangement and Parts List
Drawings – MODEL 40 .................................. 31
8.4 Sectional Arrangement and Parts List
Drawings – MODEL 60 .................................. 31
8.5 Sectional Arrangement and Parts List
Drawings – MODEL 80 .................................. 35
8.6 Mechanical Seal Sectional Arrangement and
Parts List Drawing –
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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 your 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/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.
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.
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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 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
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 Flowserve’s 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 Pump Division.
1.5 Duty conditions
This product has been selected to meet the
specifications of your purchase 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
Flowserve’s written agreement before start-up.
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MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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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:
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 and toxic fluid”
safety instructions where non-compliance 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 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.
1.6.3 Safety action
This is a summary of conditions and actions to
help 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.
NEVER DO MAINTENANCE WORK
WHEN THE UNIT IS CONNECTED TO POWER
(Lock out.)
DRAIN THE PUMP AND ISOLATE PIPING
BEFORE DISMANTLING THE PUMP
The appropriate safety precautions should be taken
where the pumped liquids are hazardous.
FLUOROELASTOMERS (When fitted.)
When a pump has experienced temperatures over
250 °C (482 °F), 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.
NEVER OPERATE THE PUMP WITHOUT THE
COUPLING GUARD AND ALL OTHER SAFETY
DEVICES CORRECTLY INSTALLED
GUARDS MUST NOT BE REMOVED WHILE
THE PUMP IS OPERATIONAL
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 vapor could cause an explosion.
HOT (and cold) PARTS
If hot or freezing components or auxiliary heating
equipment can present a danger to operators and
persons entering the immediate area, action must be
taken to avoid accidental contact (such as shielding).
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 (175 °F),
below 5 °C (20 °F) in a restricted zone, or exceeds
local regulations, action as above shall be taken.
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HAZARDOUS LIQUIDS
When the pump is handling hazardous liquids, care
must be taken to avoid exposure to the liquid by
appropriate pump placement, 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 6.2, Lubrication Data.)
NEVER EXCEED THE MAXIMUM
DESIGN PRESSURE (MDP) AT THE
TEMPERATURE SHOWN ON THE PUMP
NAMEPLATE
(See section 3.3, Performance and operating limits,
for pressure versus temperature ratings based on the
material of construction.)
NEVER OPERATE THE PUMP WITH
THE DISCHARGE VALVE CLOSED
(Unless otherwise instructed at a specific point in the
User Instructions.)
NEVER RUN THE PUMP DRY OR
WITHOUT PROPER PRIME (Casing flooded)
NEVER OPERATE THE PUMP WITH
THE SUCTION VALVE CLOSED
It should be fully opened when the pump is running.
NEVER OPERATE THE PUMP AT
ZERO FLOW OR FOR EXTENDED PERIODS
BELOW THE MINIMUM CONTINUOUS FLOW
THE PUMP SHAFT MUST TURN
CLOCKWISE WHEN VIEWED FROM THE
MOTOR END
It is absolutely essential that the rotation of the motor
be checked before installation of the coupling spacer
and starting the pump. Incorrect rotation of the pump
for even a short period can unscrew the impeller,
which can cause significant damage.
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
1.6.4 Products used in potentially explosive
atmospheres
Always check that the driver, drive coupling assembly
and pump equipment are suitably rated and/or
certified for the classification of the specific
atmosphere in which they are installed.
See section 9, Certification.
Measures are required to:
• Avoid excess temperature
• Prevent build up of explosive mixtures
• Prevent the generation of sparks
• Prevent leakages
• Maintain the pump to avoid hazard
The following instructions for pumps and pump units
when installed in potentially explosive atmospheres
must be followed to help ensure explosion protection.
Both electrical and non-electrical equipment must meet
the requirements of European Directive 94/9/EC.
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, seal and any additional
equipment, with the necessary CE Certificate/
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 effects in the motor. On
pump installations controlled by a VFD, the ATEX
Certification for the motor must state that it covers the
situation where electrical supply is from the VFD.
This particular requirement still applies even if the
VFD is in a safe area.
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Temperature
Temperature
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
Pump liquid temperature
Pumps have a temperature class as stated in the ATEX
Ex rating on the nameplate. These are based on a
maximum ambient temperature of 40 °C (104 °F); refe r
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 applicable below. The temperature rise at the seals
and bearings and due to the minimum permitted flow rate
is taken into account in the temperatures stated.
Maximum permitted liquid temperature for pumps
class to
EN 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)
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)*
Maximum permitted liquid temperature for pumps
with self priming casing
class to
EN 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)
Temperature limit of liquid
handled (* depending on
material and construction
variant – check which is lower)
Consult Flowserve
Consult Flowserve
110 °C (230 °F)*
175 °C (347 °F)*
270 °C (518 °F)*
350 °C (662 °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.
Do not attempt to check the direction of rotation with the
coupling element/pins fitted due to the risk of severe
contact between rotating and stationary components.
Where there is any risk of the pump being run against a
closed valve generating high liquid and casing external
surface temperature, 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 perform routine vibration monitoring.
In dirty or dusty environments, regular checks must
be made and dirt removed from areas around close
clearances, bearing housings, and motors.
Additional requirements for self-priming
casing pumps
Where the system operation does not ensure control of
priming, as defined in the User Instructions, and the
maximum permitted surface temperature of the T Class
could be exceeded, it is recommended that user install
an external surface temperature protection device.
1.6.4.4 Preventing the build up of explosive
mixtures
ENSURE PUMP IS PROPERLY FILLED AND
VENTED AND DOES NOT RUN DRY
Ensure that the pump and relevant suction and discharge
piping is totally filled with liquid at all times during the
pumps operation so that an explosive atmosphere is
prevented.
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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 can not avoid this
condition it is recommended that you fit an
appropriate dry run protection device (for example
liquid detection or a power monitor).
To avoid potential hazards from fugitive emissions of
vapor or gas to atmosphere, the surrounding area
must be well ventilated.
1.6.4.5 Preventing sparks
To prevent a potential hazard from mechanical
contact, the coupling guard must be non-sparking for
Category 2.
To avoid the potential hazard from random induced
current generating a spark, the baseplate must be
properly grounded.
Avoid electrostatic charge. Do not rub non-metallic
surfaces with a dry cloth; ensure the cloth is damp.
The coupling must be selected to comply with
94/9/EC and correct alignment must be maintained.
Additional requirements for pumps on
non-metallic baseplates
When metallic components are fitted on a nonmetallic baseplate they must be individually earthed.
1.6.4.6 Preventing leakage
1.6.4.7 Maintenance of the centrifugal pump to
avoid a hazard
CORRECT MAINTENANCE IS REQUIRED TO
AVOID POTENTIAL HAZARDS WHICH GIVE A
RISK OF EXPLOSION
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.)
Pumps with mechanical seal. 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 auxiliary 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.
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1.7 Safety Labels
1.7.1 Nameplates
For details of nameplate, see the Declaration of
Conformity and section 3.
1.7.2 Warning labels & tags
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MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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1.8 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, piping 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 1pW) then
add 14 dBA to the sound pressure value.
Typical sound pressure level, dBA, LpA at 1 m (3.28 ft) reference 20 µPa (2.9x10-9 psi)
Motor size
and speed
kW (hp)
<0.55 (<0.75)
0.75 (1)
1.1 (1.5)
1.5 (2)
2.2 (3)
3 (4)
4 (5)
5.5 (7.5)
7.5 (10)
11 (15)
15 (20)
18.5 (25)
22 (30)
30 (40)
37 (50)
45 (60)
55 (75)
75 (100)
90 (120)
110 (150)
150 (200)
200 (270) (1) (1) (1) (1) (1) 83 (1) 80
300 (400) - - - - (1) 84 (1) 81
(1) Motors in this range are generally job specific and noise levels should be calculated based on actual equipment installed.
For 960 r/min reduce 1450 r/min values by 5 dBA.
3550 r/min 2900 r/min 1750 r/min 1450 r/min
Pump and
motor
dBA
71 66 64 62 64 62 63 62
74 66 67 62 67 62 63 62
74 68 67 64 67 64 65 64
77 70 70 66 70 66 66 66
78 72 71 68 71 68 68 68
81 74 74 70 74 70 70 70
82 75 75 71 75 71 71 71
90 77 83 73 76 73 72 71
90 78 83 74 77 74 73 72
91 80 84 76 78 76 74 73
92 83 85 79 80 79 76 75
92 83 85 79 80 79 76 75
92 83 85 79 81 79 77 75
100 85 93 81 84 80 80 76
100 86 93 82 84 80 80 76
100 87 93 83 84 80 80 76
100 88 95 84 86 81 82 77
100 90 95 86 88 81 83 78
100 90 95 86 90 81 85 78
100 91 95 87 91 83 86 79
101 92 96 88 91 83 86 79
Pump
only
dBA
Pump and
motor
dBA
Pump
only
dBA
Pump and
motor
dBA
Pump
only
dBA
Pump and
motor
dBA
Pump
only
dBA
Page 10 of 41
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2 TRANSPORT AND STORAGE
2.1 Consignment receipt and unpacking
Immediately after receipt of the equipment it must be
checked against the delivery/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 must be received in writing within
ten days of receipt of the equipment. Later claims
cannot be accepted.
Check any crate, boxes or wrappings for any
accessories or spare parts that may be packed
separately with the equipment or attached to side
walls 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
as when ordering spare parts or further accessories.
2.2 Handling
Boxes, crates, pallets, or cartons may be unloaded
using forklift vehicles or slings dependent on their
size and construction.
2.3 Lifting
Pumps and motors often have integral
lifting lugs or eye bolts. These are intended for use
in only lifting the individual piece of equipment.
Do not use eye bolts or cast-in lifting
lugs to lift pump, motor and baseplate assemblies.
To avoid distortion, the pump unit
should be lifted as shown.
Care must be taken to lift components
or assemblies above the center of gravity to prevent
the unit from flipping. This is especially true with
belt driven units with the motor mounted above the
pump.
2.3.1 Lifting pump components
2.3.1.1 Casing [1100]
Use either a sling or hook through each of the two
lifting lugs located on the side of the casing.
2.3.1.2 Bearing Housing [3200]
Insert an eye hook in the drilled and tapped hole at
the top of the bearing housing. Use either a sling or
hook through the eyebolt.
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
2.3.1.3 Power end
Same as bearing housing.
2.3.1.4 Bare pump
Use either a sling or hook through each of the two
lifting lugs located on the side of the casing and
around the outboard end of the bearing housing with
separate slings. Choker hitches must be used at both
attachment points and pulled tight. Make sure the
completion of the choker hitch on the bearing housing is
toward the coupling end of the pump shaft. The sling
lengths should be adjusted to balance the load before
attaching the lifting hook.
2.3.2 Lifting pump, motor and baseplate
assembly
To lift the pump, driver, and baseplate as a unit, the
following procedure must be followed.
V-belt guards should be removed if fitted.
• If the baseplate has lifting holes cut in the sides
at the end, insert lifting S hooks at the four
corners and use slings or chains to connect to a
lifting eye. Do not use slings through the lifting
holes.
• For other baseplates, sling around pump
discharge nozzle, when equipped, and the
outboard end of the motor frame using choker
hitches pulled tight.
• When pump is not equipped with optional
discharge nozzle, use user supplied eyebolt
screwed and seated into discharge of pump.
Insert lifting S hook in eyebolt and use sling.
2.4 Storage
Store the pump in a clean, dry
location away from vibration. Leave flange covers in
place to keep dirt and other foreign material out of
pump casing. Turn the pump shaft at regular
intervals to prevent brinelling of the bearings and the
seal faces, if fitted, from sticking.
Page 11 of 41
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
®
The pump may be stored as above for up to 6
months. Consult Flowserve for preservative actions
when a longer storage period is needed.
2.4.1 Storage – General
Normal packaging is designed to protect the pump
and parts during shipment and for dry, indoor
storage for up to six months or less. The following is
an overview of our normal packaging:
• All loose unmounted items are packaged in a
water proof plastic bag and placed under the
coupling guard
• Inner surfaces of the bearing housing, shaft (area
through bearing housing) and bearings are coated
with Cortec VCI-329 rust inhibitor, or equal.
Bearing housings are not filled with oil
prior to shipment
• The internal surfaces of ferrous casings, covers,
seal chamber, flange faces, and the impeller
surface are sprayed with Cortec VCI-389, or
equal
• Exposed shafts are taped with Polywrap
• Flange covers are secured to both the suction
and discharge flanges or face.
• In some cases with assemblies ordered with
external piping, components may be
disassembled for shipment
• The pump must be stored in a covered, dry
location
2.4.2 Storage – Long Term
Long term storage is defined as more than six
months, but less than 12 months. The procedure
Flowserve follows for long term storage of pumps is
given below. These procedures are in addition to
the short term procedure.
• Each assembly is hermetically (heat) sealed
from the atmosphere by means of tack wrap
sheeting and rubber bushings (mounting holes)
• Desiccant bags are placed inside the tack
wrapped packaging
• A solid wood box is used to cover the assembly
This packaging will provide protection for up to
twelve months from humidity, salt laden air, dust etc.
Warranty for the pumps will normally be for
12 months. Extension of this period can only be
achieved with the prior agreement of Flowserve
and would necessitate inspection prior to putting
the pump into service.
After unpacking, protection will be the responsibility of
the user. Addition of oil to the bearing housing will
remove the inhibitor. If units are to be idle for extended
periods after addition of lubricants, inhibitor oils should
be used. Every three months, the pump shaft should
be rotated approximately 10 revolutions.
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 in accordance with local regulations. If the
product contains substances that are harmful to the
environment, these should be removed and disposed
of in accordance with current local regulations. This
also includes the liquids and/or gases that may be
used in the "seal system" or other utilities.
Make sure that hazardous substances are
disposed of safely and that the correct personal
protective equipment is used. The safety
specifications must be in accordance with the
current local regulations at all times.
3 DESCRIPTION
3.1 General
The Flowserve MPT single stage pump has a back
pull-out rotating assembly with suction and
discharge facings on the fixed casing to allow
removal of the rotating element without breaking the
pipe joints or moving the driver. Mounting feet are
rigidly connected to the casing so piping strains
allowed in section 2.3, Flange Loads, are readily
transmitted to the foundation.
No special tools are required for dismantling and
maintenance.
An example of the nameplate used on the MPT
pump, which is always mounted on the casing, is
shown below.
Serial No.
Equipment No.
Purchase
Order
Model
Size
MDP
Material
Page 12 of 41
MPT USER INSTRUCTIONS ENGLISH 85392699 06-09
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3.2 Design of major parts
3.2.1 Pump casing
The volute type casing with integral priming
chamber is of rugged heavy duty construction for
minimum wear under the toughest operating
conditions. Removal of the casing is not required
when performing maintenance of the rotating element.
The pump is designed with radial o-ring seals allowing
the rotating element and cover plate to be easily
removed (back pull out).
3.2.2 Valve flap
The pump suction opening is fitted with a non-return
flap valve. The flap is a solid one-piece design and
is easily removed for cleaning or replacement.
3.2.3 Impeller
A fully balanced semi-open two vane impeller is
spigotted and screwed to the shaft. The back of the
impeller has integrally cast clearing vanes.
3.2.4 Wear plate
The casing is fitted with a reversible and renewable
steel front wear plate which is a close clearance
against the impeller vanes. If the wear plate
becomes excessively worn, it can be reversed to
present its unworn face to the impeller. The Model
80 wear plate is not reversible.
3.2.5 Cover Plate
A large cover plate below the suction facing retained
by two hand nuts is easily removed to access the
impeller and wear plate for fast cleanout of clogged
or tangled solids.
A PRESSURE RELIEF VALVE IS FITTED TO
THE COVER PLATE AND MUST NOT BE
REMOVED, PLUGGED OR MODIFIED.
3.2.6 Shaft
The shaft is of ample size to transmit the maximum
power required and to minimize deflection and
vibration even during intermittent stop-start
operation. Keys are used to transmit the torque. The
shaft drive end and keyway are in accordance with
ANSI B17.1.
3.2.7 Stuffing box (Seal housing)
The seal housing is positively located, sealed and
fastened to the bearing housing and forms an oil
chamber in which the seal runs fully immersed. The
oil cools and lubricates the seal faces and prevents
seal damage if the pump is run dry. The oil level is
monitored via the sight glass fitted high on the
bearing housing allowing the pump to be shut down
in the event of a seal failure – indicated by a sudden
drop in oil level or product showing in the oil. A vent
is also fitted at the top of the housing to maintain
even atmospheric pressure in the oil chamber.
The seal housing is easily replaceable if wear from
the impeller back sealing vanes becomes excessive.
3.2.8 Shaft seal
The stuffing box is fitted with a double mechanical
seal; the pump end has a hard faced balanced
rotary unit to prevent liquid and grit entering the seal
chamber. The outboard end separates the seal and
bearing oil chambers.
3.2.9 Bearing housing
The robustly designed bearing housing is rigidly
bolted and sealed to the pump casing. The housing
is fitted with oil breather/fillers and sight glasses to
indicate fill and low oil levels. The end cover is fitted
with a lip seal to exclude dirt and moisture. An
eyebolt is fitted to the housing for back pull-out
withdrawal.
3.2.10 Pump bearings and lubrication
The pump is fitted with two different types of ball
bearings. The thrust bearing is a double row angular
contact ball bearing, and the radial bearing a single
row deep groove ball bearing. The thrust bearing is
fitted at the outboard end in all pumps except the
MODEL 80, which has it fitted at the inboard end.
Both bearings run in a common oil bath and are
sized for a long service life.
3.2.11 Impeller adjustment
The bearing housing (back pull-out assembly) is
fastened to the casing with four locknuts; these
locknuts pass through four adjustable spacers in the
bearing housing flange. Accurate impeller setting is
affected by adjustment of these spacer and locking
with the locknuts.
The correct adjustment is 0.38/0.25 mm
(0.015/0.010 in.) clearance between impeller vanes
and wear plate.
Clearance between the impeller and seal housing is
fixed and does not need adjustment.
3.2.12 Driver
The driver is normally an electric motor. Different
drive configurations may be fitted such as an
internal combustion engine, turbines, hydraulic
motors, etc driving via couplings, belts, gearboxes,
drive shafts, etc.
Page 13 of 41
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