Pentax HPV User manual

HPV
OPERATING INSTRUCTIONS
Rev. 0
VERTICAL MULTI-STAGE
CENTRIFUGAL PUMPS

2
INDEX
DECLARATION OF CONFORMITY
INTRODUCTION
Chap. 1: IDENTIFICATION, PACKAGING, TRANSPORT AND STORAGE
Chap. 2: SAFETY .
Chap. 3: INSTALLATION .
Chap. 4: OPERATION AND USE .
Chap. 5: MAINTENANCE .
Chap. 6: UNIT SCRAPPING .
Chap. 7: SPARE PARTS

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MADE IN ITALY
Fig.1
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/h
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MADE IN ITALY
Fig.2
Fig.3
1. IDENTIFICATION, PACKAGING, TRANSPORT AND STORAGE
1.1 IDENTIFICATION
Each pump is fitted with a metal identification plate (Fig. 1)
which as well as indicating the manufacturer's name and address
and CE mark, displays its technical data, such as:
- Type of pump
- Serial Number
- Flow rate
- Speed (RPM)
- Head
In the case of an assembly (Fig. 2) also:
- Maximum pressure
- Motor power
- Voltage
- Frequency
The serial number uniquely identifies each constructed machine.
Use this number as reference for all communication with the ma-
nufacturer.
CAUTION !
PACKING, LIFTING, HANDLING, TRANSPORT AND UNPACKING OPERATIONS
MUST BE EXCLUSIVELY ENTRUSTED TO PERSONNEL WHO ARE SKILLED IN
THESE PROCEDURES AND KNOW WELL THE PUMP AND THIS MANUAL
1.2 PACKING
Depending on their size, the pumps are shipped in the following way:
- in a wooden crate for some types of pumps and for vertical electric pumps. (Fig. 3)
CAUTION !
The dimensions and relevant net and gross weights are
shown on the packages.

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1. IDENTIFICATION, PACKAGING, TRANSPORT AND STORAGE
1.3 LIFTING AND HANDLING
Le pompe imballate possono essere sollevate e spostate con carrelli elevato-
ri o con mezzi di sollevamento (Fig. 4). Tutti i gruppi dotati di supporto in ac-
ciaio sono dotati di fori per sollevamento con gru.
CAUTION!
The selected equipment must be suitable for lifting and
safe handling, taking into account the dimensions and weights shown on the
packing. (Fig. 3)
CAUTION!
Handling may only be done by experienced and authorised personnel.
1.4 STORAGE
The packages must always be stored in covered, dry and sheltered areas at temperatures between -10°C and +40°
C and must not be exposed to direct sun radiation. (Fig. 5)
In the event of prolonged storage, once a month turn the pump over in the two rotation directions using a suitable
tool.
In the event of storage longer than 6 months, in any event contact the manufacturer.
For protection against corrosion, the outer parts of the pump may be oiled and greased.
1.5 STACKING OF PACKAGES
The type of packing provides for the possibility to stack in the warehouse and on
truck decks up to 2 stacked crates, as well as they are correctly arranged and
secured against falling. (Fig. 6)
1.6 OPENING THE PACKAGES
Upon arrival ensure the parts have not incurred damage during transport and that
all the pieces listed in the delivery note are there. (Any anomalies or damage must
be reported to the manufacturer).
The packages must be opened adopting all precautions to prevent damage to per-
sons and machine parts (prevent pieces from dropping out of the box during open-
ing)
1.7 DISPOSAL OF THE PACKAGING
The wood of the crate and pallet may be reused or recycled in compliance with
the laws in force in the country of installation of the pump.
The other materials such as straps and plastic must be disposed of in compli-
ance with the laws in force in the country.
Fig. 4
Fig. 6
Fig. 5

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2. SAFETY
It is extremely important to read this chapter carefully and in all parts as it
contains important information on the risks that operator and
maintenance technician may incur in the event of incorrect pump use.
ATTENZIONE!
The electric pumps have been designed and constructed for processing geothermal water in
the industrial sector.
Limitaons for pump usage are indicated in chapter 2 “TECHNICAL SPECIFICATIONS”.
THE MANUFACTURER DECLINES ALL RESPONSIBILITY FOR ANY DAMAGE TO
PERSONS OR THINGS DUE TO EITHER WRONG OR NOT ALLOWED INTERVENTIONS ON THE PUMPS NOT
ALLOWED.
GENERAL PRECAUTIONS
The operator and maintenance technician are bound to comply with the provisions of laws and accident
prevention regulations in force in the country of installation of the pump.
Furthermore, they:
- Must not remove or de-activate casings and mechanical, electrical or other types of protections.
- Pay attention to the safety warnings contained in the plates applied to the machine and in the manual.
- Always use personal protective equipment such as safety shoes and gloves.
The safety warnings shall be highlighted in the following ways:
DANGER: Indicates an imminent hazard that may cause harm to people (serious injury or even
death).
ATTENTION: Indicates hazardous situations and/or behaviours that may cause harm to
people (injury of varying severity and/or even death).
CAUTION: Indicates hazardous situations and/or behaviours that may cause less severe harm
to people and/or damage to property.
RISK OF ELECTROCUTION: It is a special safety warning that is displayed on the
panel of the pump, via a plate, in certain points where the risk of strong electric shock is particu-
larly high.
RISKS AND PROTECTIONS
Below is a detailed list of the risks the operators or the maintenance technician
may incur during assembly or maintenance and what protections have been adopt-
ed by the manufacturer to reduce these risks to the minimum (Fig.16)
ATTENTION!
It is the buyer's duty to check conformity of use of the pump and compliance with
safety aspects of the premises where it is installed.
ATTENTION!
Connection operations with the piping line and relevant plant must be performed by
skilled personnel in compliance with the laws in force in the Country where the
pump is installed.
RISK OF COLLISION!
Due to pump parts at a man's height.
RISK OF ENTRAPMENT
Always restore safety protections due to rotating parts.

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RISK OF CRUSHING
During all handling, assembling, maintenance stages always use personal protective equipment
such as gloves, safety shoes and anything else set forth by the laws in force in the country.
RISK OF SLIPPING
Due to wet areas of the floor or with oil.
In order to prevent the risk of slipping use the suitable personal equipment
(safety shoes).
RISK OF BREAKAGE OR LEAK OF HIGHLY PRESSURISED WATER
Pay attention to accidental leaks: immediately alert maintenance.
Upon starting up always remember to prime the pump and open the delivery valve: Danger
of overheating.
RISK OF COMPONENT BREAKAGE DURING OPERATION
The manufacturer has used materials and design and constructive procedures suitable for the
intended use and to obtain a reliable and safe device but it is necessary
to comply with the use the assembly (motor / pump) has been designed for as well as with the
inspections and maintenance recommended in chapter 6 "MAINTENANCE".
RISK OF ELECTROCUTION
Jets of water, steam, solvents or paints must be avoided near parts of the pump containing
electrical wires, and especially in close proximity to the electrical panel.
Always power off the electric pump before performing any maintenance operation
Always earth the pump.
RISK FROM UNSUITABLE LIGHTING (where applicable)
The operator and maintenance technician must ensure all areas of the pump are always lit
consistently and in compliance with the provisions
of the regulations in force in the place of installation.
NOISE HAZARD
In the event of application of the pump with motor by other supplier, and in any case of
installation in the pump room, the overall noise level of the premises must be assessed in
compliance with the laws in force in the country.
Pay attention to any abnormal noise emissions during operation.
RISKS FOR UNAUTHORISED USE
Every use of the pump other than that for which it has been designed may cause accidents,
even very severe, to the persons working in its close proximity.
It is therefore extremely important to strictly comply with all rules concerning use, maintenance
and safety contained in this manual.
CAUTION! Do not intervene on the pump before closing all gate valves and discharging
the pump's pressure; only with pump stopped and powered off.
RISKS DUE TO HIGH TEMPERATURE
With cold liquids, the pumps are sized and protected so that the temperature of mechani-
cal parts falls within the limits set by the standards.
CAUTION! DANGER OF HIGH TEMPERATURES in the event of applications with hot or
pressurised liquids, in certain areas of the pump especially supports; do not go close to the
pump and only effect procedures with the pump stopped and powered off.
(Fig. 17)
RISKS DUE TO HAZARDOUS LIQUIDS AND ENVIRONMENTS
See special requirements supplied by the plant manufacturer.
2. SAFETY

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ATTENTION!
The lifting equipment to be used (including ropes, harnesses and eyebolts) must be
suitable to the stated weights of parts also considering any accessories (the weights
of piping).
In the case of bare shaft pump, never connect ropes to the end of the shaft.
ATTENTION!
IN THE EVENT OF PURCHASING THE PUMP ONLY AND COUPLING IT TO AN-
OTHER COMPANY'S MOTOR, THE PERSON PERFORMING THIS COUPLING
MUST ASSURE COMPLIANCE WITH ALL SAFETY REQUIREMENTS.
Do not lift assemblies using the motor eyebolts.
In any case follow the instructions given in the coupling joint booklet and in chapter 5
"MAINTENANCE".
3. INSTALLATION
Fig.7
Fig.8
3.1 INSTALLATION OF THE ELECTRIC MOTOR PUMP ASSEMBLY
In this case the electric pump is supplied by the manufacturer already mounted.
Handling must always be performed with lifting equipment of load capacity suita-
ble to the unit (see the weights on the packages). (Fig. 7-8)
TIGHTENING TORQUES NM

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3.2 LUBRICATION
Bearings lubricated with oil.
The support must be filled with one of the following types of oil:
- AGIP : ACER 46
- ESSO Teresso 68
- MOBIL D.TE Oil Medium
- SHELL Tellus 68
FILLING WITH OIL
Through the breather cap, pour the oil until it reaches the level of the sight
glass and stabilises at that level.
Close the filling cap again.
3.3 ELECTRICAL SYSTEM
ATTENTION!
Connection to the motor and relevant electrical installation must be per-
formed by a skilled electrical technician in compliance with electrical
standards in force.
Connection operations must be performed with no electrical volt-
age.
Ensure the power supply voltage matches that set out on the motor plate.
The connecting cable must be sized based on motor absorption and ca-
ble length (refer to the motor plate).
THREE-PHASE MOTORS
For motors of power greater than 7.5 KW it is good practice to provide star-
delta start-up.
Check the type of connection set out in the electrical motor plate. The con-
nection varies depending on the type of motor winding and voltage.
Ensure the terminals of the electrical box are connected according to the cor-
rect diagram (Fig. 9).
ATTENTION!
Always perform earthing connection. The motor crankcase must be earthed
via the suitable connection.
Check resistance to insulation before commissioning.
The motor must always be protected from overloads by a thermal breaker
installed downstream of the cut-out switch calibrated to a tripping current not
exceeding 1.15 times the motor's rated current.
It will be the technician's duty and responsibility to perform final electrical test-
ing set out by the standards and, upon completing them, issue the certificate
of conformity concerning the electrical system.
3. INSTALLATION
Fig.9
CONNECTION DIAGRAM FOR THREE-PHASE MOTORS PROVIDED
FOR STARTING:
THREE-PHASE LINE - HIGHER CONNECTION VOLTAGE
CONNECTION: (star)
THREE-PHASE LINE - LOWER CONNECTION VOLTAGE
CONNECTION: (delta)

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4. OPERATION AND USE
CHECKS BEFORE STARTING UP
ATTENTION!
Before proceeding with starting up operations, the following guidelines must be
adhered to:
Check connections of piping lips.
Check any flushing and cooling system connections (where applicable).
Check the direction of rotation by briefly starting the pump and stopping it
immediately, as it must not operate dry.
Ensure the lubricant oil is as required and in sufficient amount.
Ensure conformity of electrical connections and relevant protections.
Ensure all protections of rotating parts are correctly installed.
Ensure the system is ready for starting up.
4.1 STARTING UP/STOPPING
PUMP COMMISSIONING AND OPERATION
- When the motor has reached the rated speed adjust the delivery valve until
achieving the rated pump head.
ATTENTION!
Avoid operating the pump for a long time with the pressing gate valve closed.
Prolonged operation with delivery valve closed causes overheating which
may damage the pump.
Pump operation must be noiseless and vibration-less, the pump must not
run dry.
If the pump is fitted with gland packing, it should drip slightly during opera-
tion. (Fig. 10)
The gland must be tightened only lightly.
If the pump is equipped with mechanical seal, it does not require monitoring
as it has no leaks.
Also ensure maximum absorption of the assembly does not exceed the value set
out in the plate.
ATTENTION!
Backup pumps must be operated at least once a week in order to assure they
are always ready for use.
Braided gasket
Fig. 10
Gland packing seal

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STOP
The pump must be stopped by powering off the motor.
Centrifugal pumps may be stopped with the adjustment valve either open or
closed; a non-return valve must be installed on the delivery piping, in order to
protect it from water hammer.
After stopping the pump also close any auxiliary shutter devices or other types of
external flushing.
Any cooling must only be interrupted after the pump has reached ambient tem-
perature.
In the event of prolonged stops, completely empty the pump to prevent freezing
issues during the cold season or corrosion due to possible chemical alteration of
the liquid standing in the pump.
4.2 • REGULATION AND OPERATION CONTROL
Below is a description of the main checks to be carried out after starting up the
pump.
HEAD
The delivered flow rate of the pump is a function of the head developed according
to the pump's operation curve.
After starting up ensure the head developed by the pump matches the rated one.
For the calculation read the values displayed by the pressure gauge on delivery
and vacuum gauge on intake and apply the following formula:
H = differential head (m)
Y = specific weight at pumping temperature (Kg/dm 3)
Pm= delivery pressure
Pa = intake pressure
In the event the pump head is lower than rated, slowly close the delivery regula-
tion valve until reaching the
correct value.
Pressure leaks greater than the design, result in a greater head developed by the
pump than the rated one. In this case, to obtain the correct head value, the plant
must be modified to reduce
the leaks.
VIBRATIONS / NOISE
Operation at rated pump speed must take place without abnormal vibration or
noise. Should there be any, immediately stop the pump, seek the cause and elim-
inate it.
10,2 (Pm - Pa)
H = ————————-
Y
4. OPERATION AND USE
STOP
The pump must be stopped by powering off the motor.
Centrifugal pumps may be stopped with the adjustment valve either open or closed; a non
stalled on the delivery piping, in order to protect it from water hammer.
After stopping the pump also close any auxiliary shutter devices or other types of external flushing.
Any cooling must only be interrupted after the pump has reached ambient temperature.
In the event of prolonged stops, completely empty the pump to prevent freezing issues during the cold season or corro-
sion due to possible chemical alteration of the liquid standing in the pump.
STOP
The pump must be stopped by powering off the motor.
Centrifugal pumps may be stopped with the adjustment valve either open or closed; a non
stalled on the delivery piping, in order to protect it from water hammer.
After stopping the pump also close any auxiliary shutter devices or other types of external flushing.
Any cooling must only be interrupted after the pump has reached ambient temperature.
In the event of prolonged stops, completely empty the pump to prevent freezing issues during the cold season or corro-
sion due to possible chemical alteration of the liquid standing in the pump.