Flowserve WPG IDP User Manual

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USER INSTRUCTIONS

IDP ® WPG, WPH, CPG and CPH

Installation

Operation

Maintenance

D-line centrifugal pumps

PCN= 26999969 10-12 (E). (Based on C937KH037.) Original instructions.

These instructions must be read prior to installing,

operating, using and maintaining this equipment.

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

CONTENTS

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

1.7 Nameplate and safety labels ......................... 8

1.8 Specific machine performance ...................... 8

1.9 Noise level ..................................................... 9

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

2.1 Consignment receipt and unpacking ........... 10

2.2 Handling ...................................................... 10

2.3 Lifting ........................................................... 10

2.4 Storage ........................................................ 10

2.5 Recycling and end of product life ................ 10

3 DESCRIPTION .................................................... 11

3.1 Configurations ............................................. 11

3.2 Name nomenclature .................................... 11

3.3 Design of major parts .................................. 11

3.4 Performance and operating limits ................ 11

4 INSTALLATION .................................................... 12

4.1 Location ....................................................... 12

4.2 Part assemblies ........................................... 12

4.3 Foundation ................................................... 12

4.4 Grouting ....................................................... 12

4.5 Alignment of couplings................................. 12

4.6 Piping ........................................................... 13

4.7 Final shaft alignment check ......................... 15

4.8 Electrical connections .................................. 15

4.9 Protection systems ...................................... 15

Page

6 MAINTENANCE .................................................. 19

6.1 General ....................................................... 19

6.2 Maintenance schedule ................................ 19

6.3 Spare parts .................................................. 20

6.4 Recommended spares ................................ 20

6.5 Tools required .............................................. 20

6.6 Fastener torques ......................................... 20

6.7 Disassembly ................................................ 21

6.8 Examination of parts ................................... 21

6.9 Assembly ..................................................... 22

6.10 Sealing arrangements ................................ 24

7 FAULTS; CAUSES AND REMEDIES .................. 26

8 SECTIONAL ARRANGEMENT DRAWINGS

AND PARTS LISTS ............................................. 28

8.1 WPG sectional drawing ............................... 28

8.2 CPG sectional drawing................................ 30

8.3 WPH sectional drawing ............................... 32

8.4 CPH sectional drawing ................................ 34

8.5 General arrangement drawing .................... 36

9 CERTIFICATION ................................................. 36

10 OTHER RELEVANT DOCUMENTATION

AND MANUALS ................................................. 36

10.1 Supplementary User Instruction manuals . 36

10.2 Change notes ............................................ 36

10.3 Additional sources of information .............. 36

5 COMMISSIONING, START-UP, OPERATION

AND SHUTDOWN .............................................. 15

5.1 Pre-commissioning procedure ..................... 15

5.2 Pump lubricants ........................................... 16

5.3 Direction of rotation ..................................... 17

5.4 Guarding ...................................................... 17

5.5 Priming and auxiliary supplies ..................... 17

5.6 Starting the pump ........................................ 17

5.7 Running the pump ....................................... 17

5.8 Stopping and shutdown (all series) ............. 18

5.9 Hydraulic, mechanical and electrical duty ... 18

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INDEX

Page

Additional sources (10.3) ......................................... 36

Assembly (6.9) ......................................................... 22

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

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

Certification (9) ........................................................ 36

Change notes (10.2) ................................................ 36

Commissioning and operation (5) ............................ 15

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

Configurations (3.1) ................................................. 11

Design of major parts (3.3) ...................................... 11

Direction of rotation (5.3) ......................................... 17

Disassembly (6.7) .................................................... 21

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

Dismantling (6.7, Disassembly) ............................... 21

Drawings (8) ............................................................ 28

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

Electrical connections (4.8) ..................................... 15

End of product life (2.5) ........................................... 10

Examination of parts (6.8) ....................................... 21

Fastener torques (6.6) ............................................. 20

Faults; causes and remedies (7) ............................. 26

Final shaft alignment check (4.7) ............................. 15

Foundation (4.3) ...................................................... 12

General arrangement drawing (8.5) ........................ 36

General assembly drawings (8) ............................... 28

Grouting (4.4) ........................................................... 12

Guarding (5.4) .......................................................... 17

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

Hydraulic, mechanical and electrical duty (5.9) ....... 18

Inspection (6.2.1 and 6.2.2) ..................................... 20

Installation (4) .......................................................... 12

Lifting (2.3) ............................................................... 10

Location (4.1) ........................................................... 12

Lubrication (5.1.1) .................................................... 15

Maintenance (6) ....................................................... 19

Maintenance schedule (6.2) .................................... 19

Name nomenclature (3.2) ........................................ 11

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

Ordering spare parts (6.3.1) .................................... 20

Part assemblies (4.2) ............................................... 12

Parts lists (8) ............................................................ 28

Performance (3.4) .................................................... 11

Piping (4.6) .............................................................. 13

Pre-commissioning (5.1) .......................................... 15

Priming and auxiliary supplies (5.5) ......................... 17

Protection systems (4.9) .......................................... 15

Page

Reassembly (6.9, Assembly) ...................................22

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

Recommended spares (6.4) .....................................20

Recycling (2.5) .........................................................10

Replacement parts (6.3 and 6.4) ..............................20

Running the pump (5.7) ...........................................17

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 4.9)

Sectional drawings (8) ..............................................28

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

Sources, additional information (10.3) .....................36

Spare parts (6.3) ......................................................20

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

Starting the pump (5.6).............................................17

Stop/start frequency (5.7.4) ......................................18

Stopping and shutdown (5.8) ...................................18

Storage, pump (2.4) .................................................10

Storage, spare parts (6.3.2) .....................................20

Supplementary manuals or information sources ......36

Supplementary User Instructions (10.1)...................36

Tools required (6.5) ..................................................20

Torques for fasteners (6.6) .......................................20

Trouble-shooting (see 7) ..........................................26

Vibration (5.7.4) ........................................................18

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

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 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, utilising 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), minimum efficiency for some water pumps (Ecodesign) 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 complete and reliable. However, in spite of all of the efforts of Flowserve Corporation to provide comprehensive instructions, good engineering and safety practice should always be used.

Flowserve manufactures products to exacting International Quality Management System Standards as certified and audited by external Quality Assurance organisations. 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 authorised 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

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.

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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.

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 symbol is used in safety instructions to

remind not to rub non-metallic surfaces with a dry cloth; ensure the cloth is damp. 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

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 fluoro-

elastomers (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.

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If the temperature is greater than 80 ºC (175 ºF) or

below -5 ºC (20 ºF) in a restricted zone, or exceeds local regulations, action as above shall be taken.

HAZARDOUS LIQUIDS

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

must be applied.

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 or motor at full or zero flow. Pumps may be started with the valve further open only on installations where this situation cannot occur. The pump outlet control valve 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 pump and mechanical 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 back pressure on the pump may overload the motor and cause cavitation. Low flow rates may cause a reduction in pump/bearing life, overheating of

the pump, instability and cavitation/vibration.

1.6.4 Products used in potentially explosive

atmospheres

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. For ATEX, both electrical and non-electrical equipment must meet the requirements of European Directive 94/9/EC. Always observe the regional legal Ex requirements eg Ex electrical items outside the EU may be required certified to other than ATEX eg IECEx, UL.

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 ATEX pump set shall select the coupling, driver 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 and so, for pump 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.

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Temperature class

to EN13463-1

Maximum surface

temperature permitted

Temperature limit of

liquid handled *

T6 T5 T4 T3 T2 T1

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

Consult Flowserve Consult Flowserve

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

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

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 ºC (104 ºF); 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 ATEX temperature class and must not exceed the values in the table that follows:

Maximum permitted liquid temperature for pumps

* The table only takes the ATEX temperature class into consideration.

Pump design or material, as well as component design or material, may further limit the maximum working temperature of the liquid.

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

The operator is responsible to ensure that the specified maximum liquid temperature is not

exceeded.

Temperature classification “Tx” is used when the liquid temperature varies and when the pump is required to be used in differently classified potentially explosive atmospheres. In this case the user is responsible for ensuring that the pump surface temperature does not exceed that permitted in its actual installed location.

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.

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

In dirty or dusty environments, make regular checks and remove dirt from areas around close clearances, bearing housings and motors.

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

1.6.4.4 Preventing the build up of explosive mixtures

ENSURE THE PUMP IS PROPERLY FILLED

AND VENTED AND DOES NOT RUN DRY

Ensure the 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, fit an appropriate dry run protection device (for example liquid detection or a power monitor).

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

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1.6.4.5 Preventing sparks

To prevent a potential hazard from mechanical contact, the coupling guard must be non-sparking and anti-static 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 cloth is damp.

For ATEX the coupling must be selected to comply with 94/9/EC. Correct coupling alignment must be

maintained.

1.6.4.6 Additional requirement for metallic pumps on non-metallic baseplates

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

1.6.4.7 Preventing leakage

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, install a liquid detection device

1.6.4.8 Maintenance to avoid the 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.)

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. EU regulation 547/2012 requires the statement on a

product nameplate: MEI ≥ 0.10 [--,-]. (See section

1.8.2, Ecodesign.)

1.7.2 Safety labels

Oil lubricated units only

1.8 Specific machine performance

1.8.1 General

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.

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Motor size and speed

kW (hp)

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

Pump and

motor

Pump

only

Pump and

motor

Pump

only

Pump and

motor

Pump

only

Pump and

motor

<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)

1.8.2 Ecodesign

EU regulation 547/2012 of the Directive 2009/125/EC, for the minimum efficiency of defined classes of water pumps requires that products must show their Minimum Efficiency Index (MEI) value. The EU benchmark MEI ≥ 0.70. Also product information must be available to users.

Performance curves will have been provided with the quotation or order or are available at flowserve.com.

The efficiency of a pump with trimmed impeller is usually lower than that of a pump with the full impeller diameter. Trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.

The operation of this water pump with variable duty points may be more efficient and economic when controlled by, for example, by the use of a variable speed drive that matches the pump duty to the system.

Information on benchmark efficiency is available at;

www.europump.org/efficiencycharts

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.

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.

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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 14 dBA to the sound pressure value.

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 and must be received in writing within one month 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 fork lift vehicles or slings dependent on their

size and construction.

2.3 Lifting

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

No specific lifting points are provided

for this complete machine (unless so specified). Any lifting points that can be seen are provided only for dismantling parts for servicing. Slings, ropes and other lifting gear should be positioned where they cannot slip and where a balanced lift is obtained. The angle between sling or ropes used for lifting must

not exceed 60°.

Before lifting the driver alone, refer to the manufacturer’s instructions.

The driver weight is recorded on its nameplate.

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.

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 requirements. If the product contains substances that 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 that may be used in the "seal system" or other utilities.

Make sure that hazardous substances or toxic fluids 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.

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Pump

units

Construction

Casing test

pressure

Casing working

pressure

All pump sizes

except

125-225,

200-401

and 150-500

Cast iron,

bronze and

stainless

steel

24 bar

(348 psi)

16 bar

(232 psi)

125-225

15 bar

(217 psi)

10 bar

(145 psi)

200-401

Cast iron and

bronze

24 bar

(348 psi)

16 bar

(232 psi)

200-401

Stainless steel

16 bar

(232 psi)

10.6 bar

(154 psi)

150-500

Cast iron,

bronze and

stainless steel

12 bar

(174 psi)

8 bar

(116 psi)

3 DESCRIPTION

3.1 Configurations

This is a robust centrifugal pump design for a wide

range of applications.

3.2 Name nomenclature

The pump size will be engraved on the nameplate

typically as below:

50WPG160

Nominal discharge branch size in mm W – Cast iron design

C – Stainless steel design PG – Standard, grease lubricated bearings

PH – Heavy duty build, oil lubricated bearings Nominal maximum impeller diameter in mm

The typical nomenclature above is the general guide

to the D-line pump configuration description.

Identify the actual pump size and serial number from the pump nameplate. Check that this agrees with the

applicable certification provided.

3.3 Design of major parts

3.3.1 Pump casing

The pump casing is designed with a horizontal centreline end inlet and a vertical centreline top outlet, which makes it self-venting. For ease of maintenance, the pump is constructed so that pipe connections do not have to be disturbed when internal maintenance is required.

3.3.2 Impeller

A shrouded impeller with hub rings is fitted.

3.3.3 Shaft

The large diameter stiff shaft, mounted on bearings,

has a keyed drive end.

3.3.4 Bearing bearings and lubrication

The pump is fitted with ball and/or roller type bearings which may be configured differently dependent on use.

The bearings may be oil or grease lubricated.

3.3.5 Seal housing

The seal housing has spigots between the pump casing and bearing housing for optimum concentricity. A fully confined gasket forms the seal between the pump casing and the seal housing. The design

enables one of a number of sealing options to be fitted.

3.3.6 Shaft seal

The mechanical seal(s) attached to the pump shaft seals the pumped liquid from the environment. Gland

packing may be fitted as an option.

3.3.7 Driver

The pump is driven by a close-coupled electric motor.

The position of the terminal box can be changed by rotating the complete motor. To do this, remove the fasteners from the motor flange, rotate the motor and

re-fit the fasteners.

3.3.8 Accessories

Accessories may be fitted when specified by the

customer.

3.4 Performance and operating limits

This product has been selected to meet the specifications of the purchase order. (See section 1.5.)

These pumps are generally fitted with TEFC motors with an ambient temperature limit of 40 °C. Specific pumps may be fitted with motors to suit client's

requirements with other ambient temperature limits see motor nameplate for details.

3.4.1 Pressure limits

The operating pressure has been selected to meet your specified requirements. See paragraph 1.5, Duty conditions, for details.

The pressure and temperature operating limits for the flanges are in accordance with the relevant National or

International standards unless advised otherwise.

Heating/cooling jackets for seal or stuffing box are designed for operation up to 5 bar (72.5 psi).

Jacketed pump casings for CPG and CPH units only are designed for operation up to 5 bar (72.5 psi).

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

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.

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. Refer to the general arrangement drawing for the pump set.

4.2 Part assemblies

These pumps are not normally supplied in part assemblies but special accessories such as loose orifice plates are supplied loose. Ensure these are incorporated in the final installation.

4.3 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 and 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. Ensure the following are met:

a) The baseplate 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.)

b) Install the baseplate onto packing pieces evenly

spaced and adjacent to foundation bolts.

4.4 Grouting

Where applicable, grout in the foundation bolts.

After adding pipework connections and rechecking the coupling alignment, the baseplate should then be grouted in accordance with good engineering practice. Fabricated steel, cast iron and epoxy baseplates can be filled with grout. Folded steel baseplates should be grouted to locate their packing pieces. If in any doubt,

please contact your nearest service centre for advice.

Grouting provides solid contact between the pump unit and foundation, prevents lateral movement of vibrating

equipment and dampens resonant vibrations.

Foundation bolts should only be fully tightened when the grout has cured.

4.5 Alignment of couplings

4.5.1 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.

Motor and pump centre line height adjustment:

c) Level with shims between baseplate and packing

pieces.

d) The pump and driver have been aligned before

dispatch however the alignment of pump and motor half coupling must be checked. If this is incorrect, it indicates that the baseplate has become twisted

and should be corrected by re-shimming

e) If not supplied, guarding shall be fitted as necessary

to meet the requirements of ISO 12100 and EN953.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Graph based on the assumptions that:

1) Operating temperature rise of the motor frame is

50 C.

2) Packing piece/motor stool is not affected.

Operation:

a) Enter graph at base to shaft centre line height b) Read line for frame material c) Set motor shaft and coupling LOW by figure on

left-hand side

4.5.2 Alignment methods

Pump and driver must be isolated

electrically and the half couplings 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. Align the motor to the pump, not the pump to the

motor. Alignment is achieved by adding or removing shims

from under the motor feet and also moving the motor horizontally as required. In some cases, where the alignment cannot be achieved, it will be necessary to move the pump before recommencing the above

procedure.

For couplings with narrow flanges, use a dial indicator gauge as shown. The alignment values are

maximums for continuous service.

When checking parallel alignment, the total indicator

read-out (TIR) shown is twice the value of the actual shaft displacement.

4.5.3 Check for soft foot

This is a check to ensure that there is no undue

stress on the driver holding down bolts; due to non-

level baseplate or twisting. To check, remove all shims and clean surfaces and tighten down driver to the baseplate. Set a dial indicator as shown in sketch and loosen off the holding down bolt while noting any

deflection reading on the dial test indicator - a

maximum of 0.05 mm (0.002 in.) is considered acceptable but any more will have to be corrected by adding shims. For example, if the dial test indicator shows the foot lifting 0.15 mm (0.006 in.) then this is the thickness of shim to be placed under that foot. Tighten down and repeat the same procedure on all

other feet until all are within tolerance.

Complete piping as below and see sections 4.7,

Final shaft alignment check, up to and including section

5, Commissioning, startup, operation and shutdown,

before connecting driver and checking actual rotation.

4.6 Piping

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.

Permissible misalignment limits at working temperature:  Parallel alignment

- 0.25 mm (0.010 in.) TIR maximum

 Angular alignment

- 0.3 mm (0.012 in.) TIR maximum for couplings not exceeding 100 mm (4 in.) flange diameter

- 0.5 mm (0.020 in.) TIR maximum for couplings over 100 mm (4 in.) diameter

Page 13 of 40 flowserve.com

4.6.1 Suction and discharge pipework

Never use pump as a support for piping.

In order to minimize friction losses and hydraulic noise in the pipework it is good practice to choose pipework that is one or two sizes larger than the pump suction and discharge. Typically main pipework velocities should not exceed 2 m/s (6 ft/sec) suction and 3 m/s (9 ft/sec) on the discharge.

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Maximum forces and moments allowed on the pump flanges vary with the pump size and type. To minimize these forces and moments that may, if excessive, cause misalignment, hot bearings, worn couplings, vibration and the possible failure of the pump casing, the following points should be strictly followed:

 Prevent excessive external pipe load  Never draw piping into place by applying force to

pump flange connections

 Do not mount expansion joints so that their force,

due to internal pressure, acts on the pump flange

Ensure piping and fittings are flushed

before use.

Ensure piping for hazardous liquids is arranged

to allow pump flushing before removal of the pump. Take into account the available NPSH which must be

higher than the required NPSH of the pump.

4.6.2 Suction piping

a) The inlet pipe should be one or two sizes larger

than the pump inlet bore and pipe bends should be as large a radius as possible.

b) On suction lift the piping should be inclined up

towards the pump inlet with eccentric reducers

incorporated to prevent air locks.

c) On positive suction, the inlet piping must have a

constant fall towards the pump.

d) The pipe next to the pump should be the same

diameter as the pump suction and have a minimum of two pipe diameters of straight section between the elbow and the pump inlet flange. Where the NPSH margin is not large, it is recommended that the pipe straight is 5 to 10 pipe diameter. (See section 10.3, Reference 1.) Inlet strainers, when used, should have a net 'free area' of at least three times the inlet pipe area.

e) Fitting isolation and non-return valves will allow

easier maintenance.

f) Never throttle pump on suction side and never

place a valve directly on the pump inlet nozzle.

4.6.3 Discharge piping

a) A non-return valve should be located in the

discharge pipework to protect the pump from excessive back pressure and hence reverse rotation when the unit is stopped.

b) Fitting an isolation valve will allow easier

maintenance.

4.6.4 Flange loads

The permissible flange loading is dependent on a number of factors such as dimensions, flange rating, pressure, temperature, material, pump configuration etc.

The recommendations contained in the section on pipework connections should be followed to eliminate these loads.

When requested the permissible flange loading will have been supplied separately to the purchaser and should be obtained and retained with this manual. If in

doubt contact Flowserve for information.

4.6.5 Auxiliary piping

The connections that are to be piped

up will have been fitted with protective metal or

plastic plugs which will need to be removed.

4.6.5.1 Pumps fitted with packed glands

a) When suction pressure is below ambient pressure

and differential head is less than 10 m, it may be necessary to feed gland packing with liquid to

provide lubrication and prevent the ingress of air.

b) When pumping “dirty” liquids a clean liquid supply

to the gland is recommended.

4.6.5.2 Pumps fitted with mechanical seals

a) Single seals requiring re-circulation will normally

be provided with the auxiliary piping from pump

casing already fitted.

b) Seal housings/covers having an auxiliary quench

connection require connection to a suitable source of liquid flow, low pressure steam or static pressure from a header tank. Recommended

pressure is 0.35 bar (5 psi) or less.

c) Double seals require a barrier liquid between the

seals, compatible with the pumped liquid.

d) With back-to-back double seals, the barrier liquid

should be at a minimum pressure of 1 bar above the maximum pressure on the pump side of the inner seal. The barrier liquid pressure must not exceed limitations of the seal on the atmospheric side. For toxic service the barrier liquid supply and

discharge must be in a safe area.

e) Special seals may require modification to auxiliary

piping described above. Consult Flowserve if

unsure of correct method or arrangement.

f) For pumping hot liquids, to avoid seal damage, it is

recommended that any external flush/cooling

supply be continued after stopping the pump.

4.6.5.3 Pumps fitted with heating/cooling jackets

Connect the heating/cooling pipes from the site supply. The top connection should be used as the outlet to

ensure complete filling/venting of the annulus.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

4.6.6 Final checks

Check the torque of all bolts in the suction and discharge pipework. Check also the torque of all foundation bolts.

4.7 Final shaft alignment check

After connecting piping to the pump, rotate the shaft several times by hand to ensure there is no binding and all parts are free. Recheck the coupling alignment, as previously described, to ensure no pipe

strain. If pipe strain exists, correct piping.

4.8 Electrical connections

Electrical connections must be made

by a qualified Electrician in accordance with relevant

local national and international regulations.

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.

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 must

be fitted.

If not supplied pre-wired to the pump unit, the controller/ starter electrical details will also be supplied within the controller/starter.

For electrical details on pump sets with controllers

see the separate wiring diagram.

See section 5.2, Direction of rotation,

before connecting the motor to the electrical supply.

4.9 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 any 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, install a protection device to ensure the temperature of the liquid does not rise to an unsafe level.

If there are any circumstances in which the system can allow the pump to run dry, or start up empty, fit a power monitor 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 install an appropriate leakage detection system.

To prevent excessive surface temperatures at bearings carry out temperature or vibration monitoring.

5 COMMISSIONING, START-UP, OPERATION AND SHUTDOWN

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 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 it with oil. Watchdog oilers are self-setting and internally vent balanced. Where an adjustable body Denco oiler is fitted this should be set to the height shown in the following diagram:

Page 15 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Centrifugal pump

lubrication

Oil

Splash / force feed / purge oil mist/ pure oil mist lubrication

Viscosity cSt

@ 40 ºC

Oil temperature range *

-5 to 65 ºC

(23 to 149 ºF)

-5 to 78 ºC

(23 to 172 ºF)

-5 to 80 ºC

(23 to 176 ºF)

Designation to ISO 3448

and DIN51524 part 2

ISO VG 32

32 HLP

ISO VG 46

46 HLP

ISO VG 68

68 HLP

Oil companies and

lubricants

BP Castrol †

Energol HLP-HM 32

Energol HLP-HM 46

Energol HLP-HM 68

ESSO †

NUTO HP 32

NUTO HP 46

NUTO HP 68

ELF/Total †

ELFOLNA DS 32

Azolla ZS 32

ELFOLNA DS 46

Azolla ZS 46

ELFOLNA DS 68

Azolla ZS 68

LSC (for oil mist)**

LSO 32 (Synthetic oil)

LSO 46 (Synthetic oil)

LSO 68 (Synthetic oil)

ExxonMobil †

Mobil DTE 24

Mobil DTE 25

Mobil DTE 26

Q8 †

Q8 Haydn 32

Q8 Haydn 46

Q8 Haydn 68

Shell †

Shell Tellus 32

Shell Tellus 46

Shell Tellus 68

Chevron Texaco †

Rando HD 32

Rando HD 46

Rando HD 68

Wintershall (BASF Group) †

Wiolan HS32

Wiolan HS46

Wiolan HS68

Fuchs †

Renolin CL 32

Renolin CL 46

Renolin CL 68

Grease

NLGI 2 *

NLGI 3

Temp. range

-20 to +100 ºC (-4 to +212 ºF)

Designation

acc. to DIN

KP2K-25

KP3K-20

Energrease LS-EP2

Energrease LS-EP3

Elf

Multis EP2

Multis EP3

Fuchs

RENOLIT EP2

RENOLIT EP3

ESSO

Beacon EP2

Beacon EP3

Mobil

Mobilux EP2

Mobilux EP3 **

Rembrandt EP2

Rembrandt EP3

Shell

Alvania EP2

Texaco

Multifak EP2

Multifak EP3

SKF

LGEP 2

Grease lubricated pumps and electric motors are

supplied pre-greased.

Where the ambient temperature is very low special lubricants are required. Where oil lubrication is

utilized and the ambient is less than -5 °C (23 °F)

ensure the oil’s pour point is at least 15 °C (27 °F) below the ambient temperature or use oil class SAE 5W-50 or API-SJ and ensure the upper operating range of the oil is then not exceeded. . IS0 VG 46 oil

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.

is generally selected for an initial lubrication schedule.

Other drivers and gearboxes, if appropriate, should

be lubricated in accordance with their manuals.

5.2 Pump lubricants

5.2.1 Recommended oil lubricants

* Note that it normally takes 2 hours for bearing temperature to stabilize and the final temperature will depend on the ambient, r/min, pumpage

temperature and pump size. Also some oils have a greater viscosity index than the minimum acceptable of 95 (eg Mobil DTE13M) which may extend the minimum temperature capability of the oil. Always check the grade capability where the ambient is less than -5 ºC (23 ºF).

†

Use LSC for oil mist. Oil parameters provide flash point >166 ºC (331 ºF), density >0.87 @ 15 ºC (59 ºF), pour point of -10 ºC (14 ºF) or lower.

Normal compounded oils CANNOT be used with oil mist as anti-foam additives need to be avoided. Most oils recommended for wet splash lubrication contain foam inhibitors as well as antioxidants and anticorrosion additives, so they are unsuitable for oil mist. Some synthetic lubricants may attack the Nitrile seals used in a regular bearing housing. The LSC LSO oils are recommended for oil mist applications.

5.2.2 Recommended grease lubricants

Page 16 of 40 flowserve.com

* NLGI 2 is an alternative grease and is not to be mixed with other

grades.

** Standard pre-packed grease for fitted antifriction bearings.

5.2.2.1 Food grade grease, when applicable:

NSF H1 Klubersynth UH1 64-62 is the food grade grease option and it is NLGI grade 2.

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Frame

size

Integral and 2 piece

grease lubricated frames

Heavy duty oil lubricated

bearings

Approx.oil

capacity

Pump end

Drive end

Pump end

Drive end

Ball

bearing

Ball

bearing

Roller

bearing

Back-to-

back pair

2 & 3

4 5

6206 Z-OO 6309 Z-OO 6311 Z-OO 6314 Z-OO

6206 ZNR-OO 6309 ZNR-OO 6311 ZNR-OO 6314 ZNR-OO

NU 206 C3 NU 309 C3 NU 311 C3

Not available

T206 BG 7309 BG

7311 BG

Not available

0.6 L

0.8 L

1.0 L

1.2 L

5.2.3 Bearing sizes and oil capacities

NB The bearing sizes do not constitute a purchasing specification.

5.3 Direction of rotation

Serious damage can result if the

pump is started or run in the wrong direction of rotation. Ensure the pump is given the same rotation

as the pump direction arrow.

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 supply phasing has been altered.

5.4 Guarding

Guarding is supplied fitted to the pump set.

In member countries of the EU and EFTA, it is a legal requirement that fasteners for guards must remain captive in the guard to comply with the Machinery Directive 2006/42/EC. When releasing such guards, the fasteners must be unscrewed in an appropriate way to ensure that the fasteners remain captive.

Whenever guarding is removed or disturbed ensure that all the protective guards are securely refitted prior to start-up.

5.5 Priming and auxiliary supplies

5.5.1 Filling and priming

Ensure inlet pipe and pump casing is

completely full of liquid before starting continuous

duty operation.

Priming may be carried out with an ejector, vacuum pump interceptor or other equipment, or by flooding

from the inlet source.

When in service, pumps using inlet pipes with foot valves may be primed by passing liquid back from the

outlet pipe through the pump.

5.6 Starting the pump

a) Ensure flushing and/or cooling/

heating liquid supplies are turned ON, before

starting pump.

b) CLOSE the outlet valve. c) OPEN all inlet valves. d) Prime the pump. e) Start motor and check the outlet pressure. f) If the pressure is satisfactory, SLOWLY open the

outlet valve.

g) Do not run the pump against a

closed valve for more than 10 seconds.

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

pump. Refer to section 7, Faults; causes and remedies, for fault diagnosis.

5.7 Running the pump

5.7.1 Pumps fitted with packed glands

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 pressurised.

If no leakage takes place stop the unit, take out the packing and repack to avoid the packing overheating. If overheating takes place the pump should be stopped and allowed to cool. before being re-packing. When the pump is re-started it should be checked to ensure leakage is taking place at the packed gland.

If hot liquids are being pumped it may be necessary

to slacken the gland nuts to achieve leakage.

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, normally 30 to 120 drops per minute. Bedding

in of the packing may take another 15 minutes.

5.7.2 Pumps fitted with mechanical seal

Mechanical seals require no adjustment. Any slight initial leakage will stop when the seal is run in. Seals will always have leakage emission from the boundary film edge in operation.

Before pumping dirty liquids it is advisable, if possible,

to run the pump in using clean liquid to safeguard the

seal face.

For external flush or quench, this

should be started before the pump is run and allowed

to flow for a period after the pump has stopped.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Vibration velocity –

unfiltered

Horizontal pumps

 15 kW mm/sec

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

> 15 kW

mm/sec (in./sec)

r.m.s.

Normal N

 3.0 (0.12)

 4.5 (0.18)

Alarm N x 1.25

 3.8 (0.15)

 5.6 (0.22)

Shutdown trip N x 2.0

 6.0 (0.24)

 9.0 (0.35)

Motor rating kW (hp)

Maximum stop/starts

per hour

Up to 15 (20)

Between 15 (20) and 45 (60)

Where duty and standby pumps are installed it is

Never run a mechanical seal dry, even

for a short time.

recommended that they are run alternately every week.

5.8 Stopping and shutdown (all series)

5.7.3 Bearings

a) Close the outlet valve, but ensure

If the pumps are working in a potentially explosive atmosphere monitor temperature and/or vibration at the bearings.

If bearing temperatures are to be monitored it is

that the pump runs in this condition for no more

than a few seconds. b) Stop the pump. c) Switch off flushing and/or cooling/heating liquid

supplies at a time appropriate to the process.

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) ºC (t+tb-ta+10) ºF

and the trip at 100 ºC (212 ºF) for oil lubrication and 105 ºC (220 ºF) for grease lubrication

It is important, 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 should then remain constant or marginally reduce with time.

5.7.4 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 recommended maximum levels below are based on those standards.

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

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

d) For prolonged shut-downs and

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.

5.9 Hydraulic, mechanical and electrical 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.

5.9.1 Specific gravity (SG)

Pump capacity and total head in metres (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.

5.9.2 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.

5.9.3 Pump speed

5.7.5 Stop/start frequency

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

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.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

5.9.4 Net positive suction head (NPSHA)

NPSH available (NPSHA) is a measure of the head available in the pumped liquid, above its vapour pressure, at the pump suction branch.

NPSH required (NPSHR) is a measure of the head required in the pumped liquid, above its vapour pressure, to prevent the pump from cavitating. 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.

5.9.5 Pumped flow

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

6 MAINTENANCE

6.1 General

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.)

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.

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 guard rails 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.

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, to include the following: a) Any auxiliary systems installed must be monitored,

if necessary, to ensure they function correctly.

b) Check for any leaks from gaskets and seals. The

correct functioning of the shaft seal must be checked regularly.

c) Check that the duty condition is in the safe

operating range for the pump.

d) Check vibration, noise level and surface temperature

at the bearings to confirm satisfactory operation.

e) Check dirt and dust is removed from areas around

close clearances, bearing housings and motors.

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 19 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Fastener size

Torque Nm (lbf•ft)

M8 M10 M12 M16 M20

16 (12) 25 (18) 35 (26) 80 (59)

130 (96)

6.2.1 Routine inspection (daily/weekly)

The following checks should be made

and the appropriate action taken to remedy any

deviations: a) Check operating behaviour. Ensure noise,

vibration and bearing temperatures are normal.

b) Check that there are no abnormal fluid l leaks

(static and dynamic seals).

c) Check shaft seal leaks are within acceptable limits. d) Check running hours since last recharge of

grease or complete grease change.

e) Check any auxiliary supplies eg heating/cooling

(if fitted) are functioning correctly.

Refer to the manuals of any associated

equipment for routine checks needed.

6.2.2 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.

Refer to the manuals of any associated

equipment for periodic checks needed.

6.2.3 Re-lubrication

For general guidelines refer to section 5.1,

Lubrication.

Lubricant and bearing temperature analysis can be

useful in optimizing bearing change intervals.

6.2.4 Mechanical seals

When leakage becomes unacceptable the seal will

need replacement.

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 – taken from section 8.

4) Part number – taken from section 8.

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 is

recommended at 6 monthly intervals.

6.4 Recommended spares

Recommended spares are defined on the following basis and contained in the table in section 8.

 Class 1 (S1) – start-up and commissioning spares.  Class 2 (S2) – two year spares requirement

covering maintenance for this period.

 Class 3 (S3) –capital spares requirement. A multiplier is provided in the last column of the table

for multiple pump purchases, which can be used where more than one pump is purchased to give the estimated volume of spares required.

See section 8 for recommended spares.

6.5 Tools required

A typical range of tools that will be required to maintain these pumps is listed below.

Readily available in standard tool kits, and dependent on pump size:

 Open ended spanners (wrenches) to suit up to

M 20 screws/nuts

 Socket spanners (wrenches), up to M 20 screws  Allen keys, up to 10 mm (A/F)  Range of screwdrivers  Soft mallet  Thickness feeler gages

6.6 Fastener torques

Screws for the drive end bearing cover should

be tightened uniformly to 7 Nm (5 lbf•ft).

Non-metallic gaskets incur creep relaxation - before commissioning the pump check and retighten fasteners to tightening torques stated.

Page 20 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

6.7 Disassembly

Refer to Safety section 1.6 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. (See section 8, Parts

lists and drawings.)

6.7.1 Dismantling bearing housing assembly

To remove proceed as follows: a) Disconnect all auxiliary pipes and tubes where

applicable. b) Remove coupling guard and disconnect coupling. c) If oil lubricated frame, drain oil by removing drain

plug. d) Pull off the pump half of coupling and remove

coupling key. e) Remove support foot. Fit a screw into the tapped

hole in the frame to act as support. (NB: On larger

units leave the support foot in place.) f) Remove the nuts which secure the integral frame

or bearing housing/adaptor to the pump casing. g) Remove the rotating element complete with

bearing frame or bearing housing as one complete

unit for further dismantling. h) Prise open the impeller locknut washer and

remove impeller nut (right hand thread). If an inlet

inducer is fitted then this should be removed first

(right hand thread).

i) Pull off the impeller. j) On units fitted with gland packing, remove the

gland nuts and remove the gland from the studs.

Unscrew the stuffing box cover/bearing bracket

bolts (where fitted) and remove the stuffing box

cover. k) Remove gland packing, lantern ring and packing

seating ring. l) Remove shaft sleeve (if fitted). m) On units fitted with mechanical seals, the

manufacturer's instructions should be followed

when dismantling and assembling. For standard

mechanical seals the following procedures give

general guidance. n) Remove the nuts securing the seal plate to the

casing backplate seal housing and slide the seal

plate away. o) Unscrew the stuffing box cover/bearing adaptor

bolts (where fitted) and remove the stuffing box

cover. The inboard seat on a double seal will

come away with the stuffing box cover. p) Mark the position of the seal drive collar on the

shaft (or sleeve if fitted). Loosen the drive screws

in the seal drive collar and remove the rotating

element of the seals from the shaft or sleeve. For double seals, smooth any marks on the shaft or sleeve made by the inboard seal before removing

the outboard seal.

q) Remove stationary seat(s) from the seal plate

and seal housing. This should only be necessary if the stationary face or its seating ring are being replaced.

r) Remove shaft sleeve (if fitted).

6.7.2 Dismantling bearing frame

This operation should only be necessary if the

bearings are to be replaced. a) Pull off the pump half coupling and remove

coupling key. Remove liquid thrower and both bearing covers noting that metal labyrinth throwers

are secured by M 4 socket head setscrews.

b) Press shaft, complete with bearings, out of bearing

housing towards coupling end. On oil lubricated units the outer race and roller of the pump end bearing will stay in the housing. These should

now be removed.

c) Remove bearing locknut (and lockwasher where

fitted) and drive off bearings.

6.7.3 Renewable rings

a) When fitted, these should only be removed from

the casing and stuffing box cover when they need

to be replaced.

b) They should be prised out from behind using

levers, or alternatively, carefully drilled followed by

chiselling to split the ring to facilitate removal.

c) Replacement rings should be pressed into position

ensuring they are square within the recess.

6.8 Examination of parts

Used parts must be inspected before assembly to ensure the pump will subsequently run properly. In particular, fault diagnosis is essential to enhance pump and plant reliability.

6.8.1 Casing, seal housing and impeller

Inspect for excessive wear, pitting, corrosion, erosion or damage and any sealing surface irregularities. Replace as necessary.

6.8.2 Shaft and sleeve (if fitted)

Replace if grooved, pitted or worn.

6.8.3 Gaskets and O-rings

After dismantling, discard and replace.

6.8.4 Bearings

It is recommended that bearings are not re-used after any removal from the shaft.

Page 21 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

6.8.5 Bearing isolators, labyrinths or lip seals (if fitted)

The lubricant, bearings and bearing housing seals are to be inspected for contamination and damage. If oil bath lubrication is utilised, these provide useful information on operating conditions within the bearing housing. If bearing damage is not due to normal wear and the lubricant contains adverse contaminants, the cause should be corrected before the pump is returned to service.

If the pump is fitted with lip seals they should be

replaced at overhaul.

Labyrinth seals and bearing isolators should be

inspected for damage but are normally non-wearing parts and can be re-used.

Bearing seals are not totally leak free devices. Oil from these may cause staining adjacent to the bearings.

Inspect the bearing carrier circlip groove. Ensure it is free from damage and that housing lubrication

passages are clear.

Replace grease nipples or the filter breather (where

fitted) if damaged or clogged.

On oil lubricated versions, the oil level sight glass

should be replaced if oil stained.

6.9 Assembly

To assemble the pump, consult the sectional drawings. (See section 8, Parts lists and drawings.)

Ensure threads, gasket and O-ring mating faces are clean. Apply thread sealant to non-face sealing pipe thread fittings.

6.9.1 Bearing housing and rotating element assembly

a) Clean the inside of the bearing housing, bearing

carrier and bores for bearings.

b) Attach bearing housing support foot. c) Press drive side bearing(s) on to shaft. If duplex

bearings are to be fitted, these must be mounted

back-to-back, as shown below:

The following methods are recommended for fitting the

bearings onto the shaft:

Method 1. Use a hotplate, hot bath, oven or induction heater to heat the bearing race so it can easily be placed in position then allowed to shrink and grip the shaft. It is important that the temperature is not raised

above 100°C (212°F).

Method 2. Press the bearing onto the shaft using equipment that can provide a steady, even load to the inner race. Take care to avoid damage to the bearing

and shaft. a) Fit bearing locknut (and lockwasher where

applicable).

b) On grease lubricated pumps, pack the bearings

with grease and pack the bearing cover cavity

approximately one third full with grease.

c) Insert the shaft, complete with bearings, into the

bearing housing/frame towards the pump end.

d) When fitting a labyrinth flinger, the groove in the

pump end bearing cover should be filled with grease and the labyrinth flinger positioned to give a clearance of 0.5 to 0.65 mm in front of the bearing cover. Screws for the drive end bearing cover should be tightened uniformly to 6.8 Nm

(5 lbf•ft). e) Refit the liquid thrower. f) Fit the shaft sleeve (if applicable) ensuring the

O-seal ring is correctly fitted.

6.9.2 Packed gland units

a) The stuffing box should be packed with good quality

packing suitable for the liquid being handled. b) Assemble the gland packing into the stuffing box

housing before fitting on to the shaft. c) Stagger the joints in the gland packing by 90

degrees to each other. d) The lantern ring halves (if required) should be

positioned mid-way along the packing. e) Position the gland squarely against the last ring

and tighten the gland nuts finger-tight only. f) Install into bearing housing assembly and fit the

two screws to hold the seal housing in place. g) Check that the shaft rotates freely.

6.9.3 Seal housing and seal assembly

a) Extreme cleanliness is required. The sealing

faces and shaft or sleeve surface must be free

from scratches or other damage. b) Carefully press the stationary seat into the

mechanical seal housing or cover, ensuring that

the seating ring is not deformed. c) Where an anti-rotation pin is fitted ensure that

correct engagement with the slot is achieved.

d) Place any separate seal covers over the shaft.

Page 22 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Pump

size

Impeller hub diameter

(mm)

Diametral ring or casing clearance

(mm)

Front

Back

Front

Back

65-100

82.54/82.45

0.64/0.4

0.64/0.46

50-125

50-160

40-200

40-250

32-125

70.54/70.47

70.75/70.47

0.60/0.46

0.60/0.4 32-160

32-200

65-125

93.54/93.45

93.54/93.4

0.64/0.46

65-160

50-200

50-250

50-315

80-125

111.47/111.38

93.54/93.45

0.71/0.53

0.64/0.46

25-161

55.54/55.47

0.60/0.46

80-160

111.47/111.38

0.71/0.53

0.71/0.53 65-200

65-250

65-315

100-160

152.47/152.37

0.67/0.53

100-200

100-250

125-250

100-315

125-315

100-400

125-225

168.10/168.00

0.80/0.60

0.80/0.63

125-400

184.00/183.90

0.71/0.53

150-250

209.40/209.30

0.80/0.60

0.80/0.63

150-315

150-400

200-401

269.24/269.14

0.85/0.65

150-500

219.47/219.37

0.73/0.53

e) Set the seal to the same position as marked when

dis-assembling the unit or refer to manufacturer's

instructions to position the mechanical seal

rotating elements on the shaft or sleeve.

f) Tighten any drive screws in the seal drive collar. g) For precise compression most cartridge seals

should be set after complete pump assembly.

h) Refit the seal plate and check that the seal is not

over-compressed or locked up solid.

i) Fit new casing gasket and refit the complete

stuffing box cover/bearing housing unit to the

pump casing. Coat the screws with anti-galling compound and tighten into casing.

6.9.4 Rotary oil seals

a) Oil lip seals are not totally leak free devices and oil

leaking from a bearing housing can be visually unpleasant in a clean pump room. Very careful fitting practice for lip seals is therefore essential. Particular attention must be paid to protecting the seal from keyways by using shimming or tape and careful handling of the shaft to avoid even fine

longitudinal scratches.

b) Perfectly assembled oil seals can have a leakage

rate from almost zero to 40 mg/hr. This is equivalent to approximately 2 drops per hour and at this rate the constant level oiler would need

filling only once every 6 months.

c) Fit oil seal carefully into position and refit the drive

side bearing cover and screws and tighten up.

d) Refit coupling key and pump half coupling using

heat, if necessary, to facilitate fitting. Do not hammer the pump half coupling onto the shaft as this will cause loading and damage to the bearings.

e) Rotate pump shaft by hand to check for freedom

of rotation.

6.9.5 Refit to baseplate

a) Refit pump to baseplate and check coupling

alignment as described in section 4.7, Final shaft

alignment check.

b) Refit all safety guards and ensure all other items

have been re-attached and all fasteners tightened. as section 6.6, Fastener torques,

6.9.6 Wear ring clearances

Page 23 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

6.10 Sealing arrangements

This section shows details of the seal arrangements. Contact your nearest Flowserve sales office or service centre if you require further information or are unsure

of the specific arrangement supplied.

6.10.1 Single seal types

6.10.1.1 Single seal with simple seal cover

6.10.1.2 Single seal arranged for recirculation back to inlet

6.10.1.4 Single seal with external lip seal

VIEW SHOWING PINNED SEAT

6.10.2 Double seal types

6.10.2.1 Double back-to-back seal

6.10.1.3 Single seal with external PTFE neck bush

Note:

1. Seal seat seating ring not fitted to Ø70 units.

2. When pinned seat used, pin is located axially.

6.10.3 External seals

Page 24 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Pump

size

Seal size (mm)

100/125

Cooling annulus

Not

applicable

160

Cooling annulus

Cooling cap

200

Cooling annulus

Cooling

cap

Cooling annulus

225/250

Not applicable

Cooling cap

See note 2

Cooling

cap

315

400

Cooling cap

See note 1

500

Not applicable

6.10.4 Packed gland seal types

6.10.4.1 Packed gland with modern fibre packing

Packed gland seal with lantern ring

Note:

1. Pressed stainless steel gland illustrated.

2. Cast split gland optional.

6.10.5 Stuffing box cover/seal housing data

Notes:

1. Sizes 200-401 and 150-500 have no cooling feature on the stuffing box cover when fitted with 70 mm diameter seal.

2. Cooling cap not fitted for 0 to 110 C packed gland units and 0 to 80 C standard seal units.

Cooling annulus Cooling cap

Page 25 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

FAULT SYMPTOM

P u m p o ve r h e a t s a nd se i z es



Be a ri n g s h a v e s h o r t li f e



P u m p v ib r a t e s o r i s no i sy



M e c h a n i ca l s e a l h a s sh o rt li f e



M e c h a n i ca l s e a l l e a ks e xc es s i ve l y



P u m p r eq u i r e s e x c e s si v e p ow e r



P u m p l o s e s p r i m e a f te r st a rt i ng



I n s uf f i ci e n t p r e s s u r e d ev el o p ed



I n s uf f i ci e n t ca p ac i ty d e l i v e r e d



P u m p d oe s n o t d e l iv er l iq ui d



POSSIBLE CAUSES

POSSIBLE REMEDIES

A. System troubles



Pump not primed.

Check complete filling. Vent and/or prime.

 



Pump or suction pipe not completely filled with liquid.

  



Suction lift too high or level too low.

Check NPSHA > NPSHR, proper submergence, losses at strainers and fittings.

 



Insufficient margin between suction pressure and vapour pressure.

  

Excessive amount of air or gas in liquid.

Check and purge pipes and system.

 



Air or vapour pocket in suction line.

Check suction line design for vapour pockets.

 

Air leaks into suction line.

Check suction pipe is airtight.

 

Air leaks into pump through mechanical seal, sleeve joints, casing joint or pipe lugs.

Check and replace faulty parts. CONSULT FLOWSERVE.

 

Foot valve too small.

Investigate replacing the foot valve.

 

Foot valve partially clogged.

Clean foot valve.

  



Inlet of suction pipe insufficiently submerged.

Check out system design.

 



Speed too low.

CONSULT FLOWSERVE.



Speed too high.

CONSULT FLOWSERVE.

  

Total head of system higher than differential head of pump.

Check system losses. Remedy or CONSULT FLOWSERVE.



Total head of system lower than pump design head.



Specific gravity of liquid different from design.

Check and CONSULT FLOWSERVE.



Viscosity of liquid differs from that for which designed.

 

Operation at very low capacity.

Measure value and check minimum permitted. Remedy or CONSULT FLOWSERVE.



Operation at high capacity.

Measure value and check maximum permitted. Remedy or CONSULT FLOWSERVE.

B. Mechanical troubles

    



Misalignment due to pipe strain.

Check the flange connections and eliminate strains using elastic couplings or a method permitted.



Improperly designed foundation.

Check setting of baseplate: tighten, adjust, grout base as required.

    

Shaft bent.

Check shaft runouts are within acceptable values. CONSULT FLOWSERVE.

   

Rotating part rubbing on stationary part internally.

Check and CONSULT FLOWSERVE, if necessary.

7 FAULTS; CAUSES AND REMEDIES

Page 26 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

FAULT SYMPTOM

P u m p o ve r h e a t s a nd se i z es



Be a ri n g s h a v e s h o r t li f e



P u m p v ib r a t e s o r i s no i sy



M e c h a n i ca l s e a l h a s sh o rt li f e



M e c h a n i ca l s e a l l e a ks e xc es s i ve l y



P u m p r eq u i r e s e x c e s si v e p ow e r



P u m p l o s e s p r i m e a f te r st a rt i ng



I n s uf f i ci e n t p r e s s u r e d ev el o p ed



I n s uf f i ci e n t ca p ac i ty d e l i v e r e d



P u m p d oe s n o t d e l iv er l iq ui d



POSSIBLE CAUSES

POSSIBLE REMEDIES

    

Bearings worn

Replace bearings.

  

Wearing ring surfaces worn.

Replace worn wear ring/surfaces.



Impeller damaged or eroded.

Replace or CONSULT FLOWSERVE for improved material selection.



Leakage under sleeve due to joint failure.

Replace joint and check for damage.

 

Shaft sleeve worn or scored or running off centre.

Check and renew defective parts.

  

Mechanical seal improperly installed.

Check alignment of faces or damaged parts and assembly method used.

  

Incorrect type of mechanical seal for operating conditions.

CONSULT FLOWSERVE.

    

Shaft running off centre because of worn bearings or misalignment.

Check misalignment and correct if necessary. If alignment satisfactory check bearings for excessive wear.

    

Impeller out of balance resulting in vibration.

Check and CONSULT FLOWSERVE.

  

Abrasive solids in liquid pumped.



Internal misalignment of parts preventing seal ring and seat from mating properly.



Mechanical seal was run dry.

Check mechanical seal condition and source of dry running and repair.



Internal misalignment due to improper repairs causing impeller to rub.

Check method of assembly, possible damage or state of cleanliness during assembly. Remedy or CONSULT FLOWSERVE, if necessary.

  

Excessive thrust caused by a mechanical failure inside the pump.

Check wear condition of impeller, its clearances and liquid passages.

 

Excessive grease in ball bearings.

Check method of regreasing.



Lack of lubrication for bearings.

Check hours run since last change of lubricant, the schedule and its basis.



Improper installation of bearings (damage during assembly, incorrect assembly, wrong type of bearing etc).

Check method of assembly, possible damage or state of cleanliness during assembly and type of bearing used. Remedy or CONSULT FLOWSERVE, if necessary.



Damaged bearings due to contamination.

Check contamination source and replace damaged bearings.

C. MOTOR ELECTRICAL PROBLEMS

   

Wrong direction of rotation.

Reverse 2 phases at motor terminal box.

 

Motor running on 2 phases only.

Check supply and fuses.

  

Motor running too slow.

Check motor terminal box connections and voltage.

Page 27 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

8 SECTIONAL ARRANGEMENT DRAWINGS AND PARTS LISTS

8.1 WPG sectional drawing

Page 28 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Ref on

drawing

Part

no.

Description

Start-up

spares (S1)

2 year

spares (S2)

5 year

spares (S3)

Multiplier for

multiple pumps

3260.1

Bearing cover

3712

Bearing locknut

YES

25 %

3013

Thrust ball bearing

YES 50 %

6544 ***

Circlip

YES

25 %

Integral frame

3200

Bearing housing

1340

Adaptor

6570.1

Screw

4590.1

Gasket

YES

YES 50 %

6570.2

Screw

9322

Plate

6700.1

Coupling key

YES

25 %

2100

Shaft

YES

25 %

6700.2

Key

YES

25 %

3011

Radial ball bearing

YES 50 %

4590.2

Gasket YES 50 %

3260.2

Bearing cover

6570.3

Screw

3711

Bearing labyrinth ring

YES 50 %

6569

Plug

4590.3

Gasket YES 50 %

6570.4

Screw

6570.5

Screw

6580.1

Nut

3134.1

Support foot

6570.6

Screw

6570.7

Screw

4122

Gland nut

6572.1

Stud

4121

Gland, split

26A

4120

Gland

4590.4

Gasket YES 50 %

2400

Sleeve YES 25 %

4130

Gland packing

YES

YES 50 %

4134

Lantern ring

YES

YES 50 %

4133

Packing seating ring

YES

YES 50 %

6550

Cooling device

4610.1

O-ring YES 50 %

4610.2

O-ring YES 50 %

Stuffing box cover (cooling cap)

35A

4113

Stuffing box cooling chamber cover

35B

4590.5

Gasket YES 50 %

35C

4610.3

O-ring YES 50 %

4590.6

Gasket YES 50 %

1521

Casing cover wear ring

YES

25 %

2200

Impeller

YES

25 %

6543

Lockwasher for impeller nut

YES

25 %

1500

Casing wear ring

YES

25 %

6570.8

Screw

3134.2

Support foot

1100

Casing

6515

Drain plug

2912

Impeller nut

YES

25 %

2215**

Inducer

8.1.1 WPG parts list and recommended spare parts

Note: Reference 29 – for details of various arrangements, refer to section 6.10, Sealing arrangements. * Not fitted on 100 and 125 size pumps. ** Optional features. *** Frame 3/4 sleeved units only.

Page 29 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

8.2 CPG sectional drawing

Page 30 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Ref on

drawing

Part

no.

Description

Start-up

spares (S1)

2 year

spares (S2)

5 year

spares (S3)

Multiplier for

multiple pumps

3260.1

Bearing cover

3712

Bearing locknut

YES

25%

3013

Thrust ball bearing

YES

6544 **

Circlip

YES

25%

Integral frame

3200

Bearing housing

1340

Adaptor

6570.1

Screw

Gasket

YES

YES 50%

6570.2

Screw

9322

Plate

6700.1

Coupling key

YES

25%

2100

Shaft

YES

25%

6700.2

Key

YES

25%

3011

Radial ball bearing

YES 50%

4590.2

Gasket YES 50%

3260.2

Bearing cover

6570.3

Screw

3711

Bearing labyrinth ring

YES 50%

6569

Plug

4590.3

Gasket YES 50%

6570.4

Screw

6570.5

Screw

6580.1

Nut

3134.1

Support foot

6570.6

Screw

6570.7

Screw

4135

Drip pan

6580.2

Nut

6572.2

Stud

4212

Seal cover

4420

Seal pipe

4590.7

Gasket YES 50%

4590.8 **

Gasket YES 50%

2400 **

Sleeve YES 25%

4200

Mechanical seal

YES

YES 50%

6550

Cooling device

4610.1

O-ring YES 50%

4610.2

O-ring YES 50%

Stuffing box cover (cooling cap)

36A

4113

Stuffing box cooling chamber cover

36B

4590.5

Gasket YES 50%

36C

4610.3

O-ring YES 50%

4590.6

Gasket YES 50%

1521 *

Casing cover wear ring

YES

25%

2200

Impeller

YES

25%

6543

Lockwasher for impeller nut

YES

25%

1500

Casing wear ring

YES

25%

6570.8

Screw

3134.2

Support foot

1100

Casing

6569.2

Drain plug

2912

Impeller nut

YES

25%

2215**

Inducer

8.2.1 CPG parts list and recommended spare parts

NB: Reference 32 - for details of various arrangements, refer to section 6.10, Sealing arrangements. * These items are integral with the stuffing box cover on the following pump sizes: 125CPG225, 150CPG250, 50CPG315, 65CPG315,

100CPG315, 125CPG315, 150CPG315, 100CPG315, 125CPG400, 150CPG400.

** Optional features.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

8.3 WPH sectional drawing

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Ref on

drawing

Part

no.

Description

Start-up

spares (S1)

2 year

spares (S2)

5 year

spares (S3)

Multiplier for

multiple pumps

4300.1

Radial lip seal

YES 50%

3260.1

Bearing cover

4542

Seal ring YES 50%

3712

Bearing locknut

YES

25%

3713

Bearing locknut washer

YES

25%

3013

Thrust ball bearing

YES 50%

3645

Disc spacer (thrust ring)

YES 50%

6544

Circlip

YES

25%

3200

Bearing housing

3855

Constant level oiler

YES

25%

6529

Breather

4590.1

Gasket

YES

YES 50%

6700.1

Key

YES

25%

2100

Shaft

YES

25%

6700.2

Key

YES

25%

3012

Radial roller bearing

YES 50%

2905

Washer

3260.2

Bearing cover

6570.1

Screw

4300.2

Radial lip seal

YES 50%

3711

Bearing labyrinth ring

YES 50%

6569.1

Plug

6569.2

Plug

2400 **

Sleeve YES 25%

4590.2 **

Gasket YES 50%

3134.1

Support foot

6570.2

Screw

3134.2

Support foot

6570.3

Screw

1340

Adaptor

9322

Nameplate

6570.4

Screw

6570.5

Screw

6570.6

Screw

6580.1

Nut

6572.1

Stud

4212

Seal cover

4420

Seal pipe

4200

Mechanical seal

YES

YES 50%

6570.7

Screw

4590.3

Gasket

Cooling cap

4610.1

O-ring YES 50%

4610.2

O-ring YES 50%

Stuffing box cover (cooling cap)

45A

Stuffing box cover (cooling annulus)

45B

4590.4

Gasket YES 50%

45C

4610.3

O-ring YES 50%

4590.5

Gasket

YES

YES 50%

1500

Stuffing box cover renewable ring

YES

25%

2200

Impeller

YES

25%

6541

Impeller lockwasher

YES

25%

1500.1

Casing renewable ring

YES

25%

6570.8

Screw

Casing support foot

1100

Casing

6569.3

Plug

2912

Impeller nut

YES

25%

2215**

Inducer

8.3.1 WPH parts list and recommended spare parts

NB: Reference 39 - for details of various arrangements, refer to section 6.10, Sealing arrangements. * Not fitted on 100 and 125 size pumps. ** Optional features.

Page 33 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

8.4 CPH sectional drawing

Page 34 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Ref on

drawing

Part

no.

Description

Start-up

spares (S1)

2 year

spares (S2)

5 year

spares (S3)

Multiplier for

multiple pumps

4300.1

Radial lip seal

YES 50%

3260.1

Bearing cover

YES 50%

4542

Seal ring YES 50%

3712

Bearing locknut

YES

25%

3713

Bearing locknut washer

YES

25%

3013

Thrust ball bearing

YES 50%

3645

Disc spacer (thrust ring)

YES 50%

6544

Circlip

YES

25%

3200

Bearing housing

3855

Constant level oiler

YES

25%

6529

Breather

4590.1

Gasket YES 50%

6700.1

Key

YES

25%

2100

Shaft

YES

25%

6700.2

Key

YES

25%

3012

Radial roller bearing

YES 50%

2905

Washer

3260.2

Bearing cover

6570.1

Screw

4300.2

Radial lip seal

YES 50%

3711

Bearing labyrinth ring

YES 50%

6569.1

Plug

6569.2

Plug

2400

Sleeve YES 25%

4590.2

Gasket YES 50%

3134.1

Support foot

4590.3

Gasket YES 50%

6570.2

Screw

6570.3

Screw

1340

Adaptor

9322

Nameplate

6570.4

Screw

6570.5

Screw

6570.6 *

Screw

6580.1

Nut

6572.1

Stud

Drip tray

4212

Seal cover

4420

Seal pipe

4200

Mechanical seal

YES

YES 50%

6570.7

Screw

4590.4

Gasket

Cooling cap

4610.1

O-ring YES 50%

4610.2

O-ring YES 50%

Stuffing box cover

46A

Stuffing box cover

46B

4590.4

Gasket YES 50%

46C

4610.3

O-ring YES 50%

4590.5

Gasket

YES

YES 50%

1500**

Stuffing box cover renewable ring

YES

25%

2200

Impeller

YES

25%

6541

Impeller lockwasher

YES

25%

Casing support foot

6570.8

Screw

1100

Casing

Washer

6569.3

Plug

2912

Impeller nut

YES

25%

2215**

Inducer

8.4.1 CPH parts list and recommended spare parts

NB: Reference 40 - for details of various arrangements, refer to section 6.10, Sealing arrangements. * These items are integral with the stuffing box cover on the following pump sizes: 125CPH225, 150CPH250, 50CPH315, 65CPH315,

100CPH315, 125CPH315, 150CPH315, 100CPH315, 125CPH400, 150CPH400.

** Optional features.

Page 35 of 40 flowserve.com

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

8.5 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 Instruction

manuals

Supplementary instruction determined from the contract requirements for inclusion into User Instructions such as for a driver, instrumentation, controller, sub-driver, seals, sealant system, mounting component etc are included

under this section. If further copies of these are required they should be obtained from the purchaser for retention with these User Instructions.

Where any pre-printed set of User Instructions are used, and satisfactory quality can be maintained only by avoiding copying these, they are included at the end of these User Instructions such as within a standard clear polymer software protection envelope.

10.2 Change notes

If any changes, agreed with Flowserve Solution Group, 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 Rotordynamic Pumps: a reference guide, Europump Guide No. 1, Europump & 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.

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Notes:

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Notes:

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WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12

Notes:

Page 39 of 40 flowserve.com

WR and CR USER INSTRUCTIONS ENGLISH 26999968 10-12

Your Flowserve factory contact:

Flowserve Pumps Flowserve GB Limited Lowfield Works, Balderton Newark, Notts NG24 3BU United Kingdom

Telephone (24 hours) +44 1636 494 600 Sales & Admin Fax +44 1636 705 991 Repair & Service Fax +44 1636 494 833 Email newarksales@flowserve.com

Your local Flowserve representative:

To find your local Flowserve representative please use the Sales Support Locator System found at www.flowserve.com

FLOWSERVE REGIONAL SALES OFFICES:

USA and Canada

Flowserve Corporation 5215 North O’Connor Blvd., Suite 2300 Irving, Texas 75039-5421, USA Telephone +1 972 443 6500 Fax +1 972 443 6800

Europe, Middle East, Africa

Flowserve Worthington S.r.l. Via Rossini 90/92 20033 Desio (Milan), Italy Telephone +39 0362 6121 Fax +39 0362 303 396

Latin America and Caribbean

Flowserve Corporation 6840 Wynnwood Lane Houston, Texas 77008, USA Telephone +1 713 803 4434 Fax +1 713 803 4497

Asia Pacific

Flowserve Pte. Ltd 10 Tuas Loop Singapore 637345 Telephone +65 6771 0600 Fax +65 6862 2329

Flowserve WPG IDP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual