WDM PI User manual

In-Line Vertical Pump PI
Operation Manual

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PI Operation Manual
These units are vertical process pumps of the overhung configuration and identified by WDM
Pumps as PI.
It is recommended that the services of a WDM Pumps installation technician be employed for
the installation and initial starting of the pump. Such service will help to ensure the user that the
equipment is properly installed, and will provide an excellent opportunity for the plant operator to
receive useful tips and guidelines relative to the unit. The tools and/or equipment referenced in
this manual are not supplied by WDM Pumps unless specifically ordered. This pump design can
be serviced with standard maintenance tools.
Instructions in this manual are written for trained, experienced technicians who are familiar with the
basic principles and tools involved in the installation, care and service of a pump and who, as part
of their trade education have acquired the ability to interpret and follow the detailed specifications
required for such installation, care, and service. Successful operation of the unit is dependent on
careful study of the manual and a well-planned maintenance program.
A complete reading of this manual by personnel in contact with the pump is essential to safety.
Incorrect installation, operation or maintenance can result in personal injury or death to personnel
and damage to the pump and plant.
Before performing any service function be certain that the unit is separate from its power source
or that the power source is locked out to prevent any form of energy from entering the equipment.
Contact with hot surfaces of the pump can cause severe burns. Care must be taken where such
surfaces are exposed. Care must also be taken to prevent ignition of flammable fluids or other
material.
Information in this manual is believed to be reliable, but it is not guaranteed by WDM Pumps as to
its completeness or accuracy.
© 2014 WDM Pumps
All Rights Reserved.
FOREWORD

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PI Operation Manual
SECTION ONE - PRODUCT DESCRIPTION ..............................................................................6
1.1 INTRODUCTION ......................................................................................................... 7
1.2 PUMP CASE, IMPELLER, AND ADAPTER ................................................................. 7
1.2.1 Pump Case .................................................................................................................7
1.2.2 Impeller ......................................................................................................................7
1.2.3 Adapter .......................................................................................................................7
1.3 MECHANICAL SEAL CHAMBER ..................................................................................7
SECTION TWO - SAFETY...........................................................................................................8
2.1 IDENTIFICATION OF SAFETY INSTRUCTIONS IN THE OPERATING MANUAL ......8
2.2 QUALIFICATION AND TRAINING OF OPERATING PERSONNEL .............................8
2.3 HAZARDS IN THE EVENT OF NON-COMPLIANCE WITH THE SAFETY
INSTRUCTIONS ..................................................................................................................9
2.4 COMPLIANCE WITH REGULATIONS PERTAINING TO SAFETY AT WORK ............9
2.5 SAFETY INSTRUCTIONS RELEVANT FOR OPERATION..........................................9
2.6 SAFETY INSTRUCTIONS RELEVANT FOR MAINTENANCE, INSPECTION AND
ASSEMBLY WORK ...........................................................................................................10
2.7 UNAUTHORIZED ALTERATIONS AND SPARE PARTS ...........................................10
2.8 UNAUTHORIZED MODES OF OPERATION ..............................................................10
SECTION THREE - TRANSPORT & STORAGE ......................................................................11
3.1 SHIPPING ARRANGEMENTS ....................................................................................11
3.2 UNLOADING AND CHECKING EQUIPMENT ............................................................11
3.3 TRANSPORT ..............................................................................................................11
3.4 STORING ....................................................................................................................12
3.5 CONSERVATION .......................................................................................................15
SECTION FOUR - PIPING ........................................................................................................16
4.1 PIPING THE SYSTEM ................................................................................................16

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PI Operation Manual
SECTION FIVE - OPERATION ......................................................................................................19
5.1 PRIMING ..........................................................................................................................19
5.2 STARTUP .........................................................................................................................19
5.3 OPERATING CHECK .......................................................................................................20
5.4 STOPPING ........................................................................................................................22
5.5 SHORT-TERM SHUTDOWN ............................................................................................22
5.6 LONG-TERM SHUTDOWN ..............................................................................................23
SECTION SIX – MAINTENANCE ....................................................................................................24
6.1 DISASSEMBLY .................................................................................................................24
6.2 INSPECTION AND CLEANING ........................................................................................26
6.3 REASSEMBLY ..................................................................................................................26
6.3.1 PI Mechanical Seal Option .............................................................................................26
6.3.2 PI Packing Option ...........................................................................................................44
SECTION SEVEN - SPARE PARTS ...............................................................................................48
SECTION EIGHT - PARTS INFORMATION ...................................................................................49
SECTION NINE - TROUBLESHOOTING CHART ..........................................................................51

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PI Operation Manual
Theseoperatinginstructions containimportantinformation abouttheinstallation, operationandservice
ofthe unit.It istherefore imperativethat theinstalling engineerand theresponsible specialist/operating
personnel read and understand these operating instructions before installation and commencement
of operation.
This manual must always be available in the operational area of the machine/plant.
Please contact a WDM Pumps dealer should problems arise. The pump may only be opened by a
WDM Pumps approved technician during the guarantee period.
In case of queries, please have your project number and type designation of the pump available. You
can find both of these on the first page of these operating instructions or on the rating plate fixed to
the pump.
When ordering spare parts we would further request that you give the description of the required
parts, together with their part numbers and identity numbers. You can find these on the sectional
drawing and spare part list enclosed.
WDM Pumps of type PI are In-Line Vertical pumps, vertically (radially) split case, centerline supported
with an overhung impeller.
The PI is a single stage, single suction pump. For these pumps, rotation is clockwise as viewed
from the motor (coupling) end. These pumps have a top Pull-Out which simplifies maintenance.
The complete rotor assembly is easily removed for inspection without disturbing the pump’s piping.
When performing maintenance to the mechanical seal, it is not necessary to remove the complete top
assembly, as this pump has a split coupling that allows easy removal and access to the mechanical
seal without removing the motor (driver) or adapter.
The PI pump has a carbon made bushing for pump shaft alignment.
The following information is included in the nameplate of your pump unit:
• Serialnumber
• RPM
• Head
1. SECTION ONE - PRODUCT DESCRIPTION
1.1 Introduction

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PI Operation Manual
1.2.1 Pump Case
Developed in cast iron, it is radially split with four bosses for cooling purposes, venting valve to
extract air from the system, and manometers inspection.
1.2.2 Impeller
Single-suction, closed-cast impeller, in one piece, dynamically balanced with balancing holes
near the hub, designed to meet high performance during the pumps life.
1.2.3 Adapter
The adapter connects the vertical motor with the case to transmit the power to the impeller through
the shafts (motor and pump) and the split coupling. This part has with two lifting ears that allow an
easier carry and handle. The bracket has a drainer plug, which avoids accumulation of condensed
water inside the pump.
The PI pump has an outside balanced mechanical seal option, inside unbalanced mechanical seal
option, as well as packaging option. Mechanical seal (stationary part) holder with cooling system.
1.2 PUMP CASE, IMPELLER, AND ADAPTER
1.3 SEAL CHAMBER

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PI Operation Manual
This operation manual gives basic instructions that should be observed during installation,
operation and maintenance of the pump. It is therefore imperative that this manual be read by the
responsible personnel/operator prior to assembly and commissioning.
It must always bekept available attheinstallation site. Notonly are the generalsafety instructions
contained under this SECTION TWO - SAFETY that must be observed but also the specific
information provided in other sections.
Safety instructions given in this manual whose non-compliance would affect personal and
equipment safety are identified by the following symbol.
Where electrical safety is involved, the following symbol is shown.
The symbol is inserted in safety instructions whenever non-compliance
might endanger the machine or its function.
It is imperative that signs affixed to the machine are observed and kept legible, for example:
• arrowindicatingthedirectionofrotation
• symbolsindicatingfluidconnections
2. SECTION TWO - SAFETY
2.1 IDENTIFICATION OF SAFETY INSTRUCTIONS IN THE OPERATING MANUAL

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PI Operation Manual
Thepersonnelresponsibleforoperation,maintenance,inspectionandassemblymustbeadequately
qualified. The responsibilities and supervision of the personnel must be exactly defined by the
plant operator. If the staff does not have the necessary knowledge, they must be trained and
instructed. Training may be performed by a WDM Pumps representative on behalf of the plant
operator. Moreover, the plant operator is to make sure that the contents of the operating manual
are fully understood by the personnel.
2.3 HAZARDS IN THE EVENT OF NON-COMPLIANCE WITH THE SAFETY INSTRUCTIONS
Non-compliance with the safety instructions may produce a risk to the personnel as well as to the
environment and the unit and results in loss of any right to claim damages.
Non-compliance may involve the following hazards:
• Riskofinjuryordeath.
• Failureofimportantfunctionsofthemachine/plant.
• Exposureofpeopletoelectrical,mechanical,chemical,andthermalhazards.
• Endangeringordamagingtheenvironmentduetohazardoussubstancesbeingreleased.
2.4 COMPLIANCE WITH REGULATIONS PERTAINING TO SAFETY AT WORK
When operating the pump, the safety instructions contained in this manual, the relevant national
accident prevention regulations, local and federal health and safety regulations, quality system
requirements, and any other service and safety instructions issued by the plant operator must be
observed
2.5 SAFETY INSTRUCTIONS RELEVANT FOR OPERATION
• Ifhotorcoldmachinecomponentsinvolvehazards,theymustbeguardedagainstaccidental
contact (attach warning signs).
• Anyleakageofhazardousfluidsmustbedrainedawaytopreventanyrisktopersonsorthe
environment. Statutory regulations are to be complied with.
• Hazardsresultingfromelectricitymustbeprevented.
2.2 QUALIFICATION AND TRAINING OF OPERATING PERSONNEL

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PI Operation Manual
2.6 SAFETYINSTRUCTIONSRELEVANTFORMAINTENANCE,INSPECTIONAND ASSEMBLY
WORK
It is the plant operator’s responsibility to ensure that all maintenance, inspection and assembly work
is performed by authorized and qualified personnel who have adequately familiarized themselves with
the subject in matter by studying this manual in detail.
Any work on the machine shall only be performed when it is at a standstill. To shut off the machine
it is imperative to follow the procedure for shutting down the machine as described in SECTION
5.4-STOPPING.
Pumps and pump units that convey hazardous materials must be decontaminated before any
maintenance work is performed.
On completion of work all safety and protective facilities must be re-installed and made operative
again.
Prior to restarting the machine, follow the instructions listed under SECTION 5.2-STARTUP .
2.7 UNAUTHORIZED ALTERATIONS AND SPARE PARTS
Modifications may be made to the machine only after consultation with a WDM Pumps representative.
Using spare parts and accessories authorized by WDM Pumps is in the interest of safety. The use of
parts not authorized by the dealer exempt the manufacturer from any liability, voiding the warranty.
2.8 UNAUTHORIZED MODES OF OPERATION
Thereliabilityofthemachineisguaranteedifandonlyifitisusedintheintendedmanner,inaccordance
with the statutes of this manual. The limit values specified in the data sheet must never be exceeded
under any circumstance.

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PI Operation Manual
3.1 SHIPPING ARRANGEMENTS
A wooden skid is furnished for support and ease of transportation. Other required items (e.g.
hardware, spare parts, etc.) are boxed or secured to the skid.
3.2 UNLOADING AND CHECKING EQUIPMENT
The following steps should be completed for all pumps when received.
1. Handle all equipment carefully.
2. Remove unit only by properly supporting the wooden shipping skid.
3.Afterunloading,inspectthepump,checktheshipmentagainstthepackinglist,andreportdamages
or shortages immediately to freight carrier and to the designated WDM Pumps representative.
3.3 TRANSPORT
• Toavoiddamage,theunitmustbetransportedandhandledwithcare.Itshouldbegently
lowered onto an even surface. Pay attention to and indentify the signs marking the points of
equilibrium and fastening places for ropes, or the openings for forklift trucks.
• Observetheplant’ssafetyprecautionswhenliftingheavycomponents.
• Since the unit is shipped horizontally, it must first be placed vertically to remove it from
the pallet. To do such operation, use the lifting lug on the motor (driver), to tilt the unit until it is in
vertical position. To prevent the pallet from moving, secure it before starting this operation. Once
the pump is in vertical position and correctly supported, the rope or chain is placed under the driver
and through the adapter. Both techniques are illustrated in Figure 3.1.
• Onsomepumps,itmaybenecessarytoremovethecouplingguardbeforeplacingtherope
or chain under the driver and through the adapter. After moving the pump, and before start-up, the
coupling guard must be placed back in place.
3. SECTION THREE - TRANSPORT & STORAGE