INOXPA ESTAMPINOX EFI Manual

INSTALLATION, SERVICE AND MAINTENANCE INSTRUCTIONS
CENTRIFUGAL PUMP
ESTAMPINOX EFI
Original Instructions
01.020.30.08EN
(0) 2021/04
01.020.32.0023
01.020.32.0030

01.011.30.07EN
(0) 2021/04
(1) The serial number may be preceded by a slash and by one or two alphanumeric characters
01.020.30.07EN
(0) 2021/04
EC Declaration of Conformity
We,
INOXPA, S.A.U.
Telers, 60
17820 –Banyoles (Spain)
Hereby declare under our sole responsibility that the machine
CENTRIFUGAL PUMP
Designation
ESTAMPINOX EFI
Type
ESTAMPINOX EFI 0, ESTAMPINOX EFI 1, ESTAMPINOX EFI 2, ESTAMPINOX EFI 3
From serial number IXXXXXX to IXXXXXX (1) / XXXXXXXXXIIN to XXXXXXXXXIIN (1)
Fulfills all the relevant provisions of the following directive:
Machinery Directive 2006/42/EC
Applicable harmonized standards:
EN ISO 12100:2010
EN 809:1998+A1:2009/AC:2010
EN 12162:2001+A1:2009
EN 60204-1:2018
The technical file has been prepared by the signer of this document in INOXPA S.A.U.
David Reyero Brunet
Technical Office Manager
Banyoles, 12th April, 2021

INOXPA S.A.U. · 01.020.30.08EN · (0) 2021/04 3
1. Table of Contents
1. Table of Contents
2. Generalities
2.1.Instructions manual.......................................................................................................................................4
2.2.Compliance with the instructions ..................................................................................................................4
2.3.Warranty........................................................................................................................................................4
3. Safety
3.1.Warning symbols...........................................................................................................................................5
3.2.General safety instructions ...........................................................................................................................5
4. General Information
4.1.Description....................................................................................................................................................6
4.2.Application.....................................................................................................................................................6
5. Installation
5.1.Reception of the pump..................................................................................................................................7
5.2.Identification of the pump..............................................................................................................................7
5.3.Transport and storage...................................................................................................................................8
5.4.Location.........................................................................................................................................................8
5.5.Pipes.............................................................................................................................................................9
5.6.Electrical installation .....................................................................................................................................9
6. Start-up
6.1.Checks before starting the pump................................................................................................................11
6.2.Checks when starting the pump..................................................................................................................11
7. Troubleshooting
8. Maintenance
8.1.General considerations...............................................................................................................................14
8.2.Check the mechanical seal.........................................................................................................................14
8.3.Maintenance of the seals............................................................................................................................14
8.4.Tightening torque........................................................................................................................................14
8.5.Storage........................................................................................................................................................15
8.6.Dissasembly and assembly of the pump ....................................................................................................15
9. Technical Specifications
9.1.Weight with shroud .....................................................................................................................................18
9.2.Weight without shroud ................................................................................................................................18
9.3.Dimensions with shroud..............................................................................................................................19
9.4.Dimensions without shroud.........................................................................................................................20
9.5.Exploded drawing of Estampinox EFI 0/1/2 pump......................................................................................21
9.6.Parts list of Estampinox EFI 0/1/2 pump.....................................................................................................21
9.7.Exploded drawing of Estampinox EFI 3 pump with motor size 100/112 ....................................................22
9.8.Parts list of Estampinox EFI 3 pump with motor size 100/112 ...................................................................22
9.9.Exploded drawing of Estampinox EFI 3 pump with motor size 132............................................................23
9.10.Parts list of Estampinox EFI 3 pump with motor size 132 .........................................................................23
9.11.Exploded drawing of Estampinox EFI pump with shroud..........................................................................24
9.12.Parts list of Estampinox EFI pump with shroud.........................................................................................24

Generalities
4 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
2. Generalities
2.1. INSTRUCTIONS MANUAL
This manual contains information regarding the reception, installation, operation, assembly, disassembly and
maintenance of the ESTAMPINOX EFI pump.
Carefully read the instruction prior to starting the pump, familiarize yourself with the installation, operation and
correct use of the filter and strictly follow the instructions. These instructions should be kept in a safe location
near the installation area.
The information published in the instruction manual is based on updated data.
INOXPA reserves the right to modify this instruction manual without prior notice.
2.2. COMPLIANCE WITH THE INSTRUCTIONS
Not following the instructions may impose a risk for the operators, the environment and the machine, and may
result in the loss of the right to claim damages.
This non-compliance may result in the following risks:
•failure of important machine/plant functions,
•failure of specific maintenance and repair procedures,
•possible electrical, mechanical and chemical hazards,
•risk to the environment due to the type of substances released.
2.3. WARRANTY
The conditions of the warranty are specified in the General Sales Condition that has been delivered at the time
of placing your order.
The machine may not undergo any modification without prior approval from the manufacturer.
For your safety, only use original spare parts and accessories.
The usage of other parts will relieve the manufacturer of any liability.
Changing the service conditions can only be carried out with prior written authorization from
INOXPA.
The non-compliance of the prescribed indications in this manual means misuse of this gear on the technical side
and the personal safety and this, exempt INOXPA of all responsibility in case of accidents and personal injuries
and/or property damage. Also, excluded from the warranty all breakdowns caused by improper use of the gear.
Please do not hesitate to contact us in case of doubts or if further explanations are required regarding
specific data (adjustments, assembly, disassembly, etc.)

Safety
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3. Safety
3.1. WARNING SYMBOLS
Safety hazard for people in general and/or for equipment
Electric hazard
Important instruction for the protection of the equipment and its functions
3.2. GENERAL SAFETY INSTRUCTIONS
Read the instruction manual carefully before installing and starting the pump. Contact INOXPA in
case of doubt.
3.2.1. During the installation
The Technical Specifications of chapter 9 should always be observed.
Never start the pump before connecting it to the lines.
Check for proper specifications of the motors, especially if its working conditions create an
explosions hazard.
During the installations, all the electric work should be carried out by authorized personnel.
3.2.2. During operation
The Technical Specification of chapter 9 should always be observed. Under no circumstances can
the specified limit values be exceeded.
NEVER touch the pump or the pipework during operation if the pump is being used for transferring
hot liquids or during cleaning.
The pump contains moving parts. Never place your fingers inside the pump during operation.
NEVER operate with the suction and discharge valves closed.
NEVER spray water directly on the electrical motor. The standard motor protection is IP-55:
protection against dust and water spray.
3.2.3. During maintenance
The Technical Specifications of chapter 9 shall always be observed.
NEVER disassemble the pump until the pipes have been emptied. Remember that liquid will
remain inside the pump’s pump casing (if does not have a purge). Bear in mind that the pumped
liquid may be hazardous or extremely hot. Consult the regulations in effect in each country for
these cases.
Do not leave loose parts on the floor.
ALWAYS disconnect the electrical power to the pumps prior to carrying out any maintenance.
Remove the fuses and disconnect the cable from the motor’s terminals.
All electrical work must be carried out by authorized personnel.
ATTENTION

General Information
6 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
4.General Information
4.1. DESCRIPTION
ESTAMPINOX EFI centrifugal pumps have designed to pump water and compatible liquids with AISI 316L
stainless steel.
ESTAMPINOX EFI is a close-coupled centrifugal pump. It is made of a cold-formed stainless steel casing, open
impeller manufactured with stainless steel cold-formed plate or investment casting according to model,
mechanical seal, pump cover, lantern and shaft. ESTAMPINOX EFI centrifugal pump is provided with an
internal single mechanical seal.
The motor is IEC standard, B34 flange (B35 for frame 132), protection IP55, class F-insulation, three-phase
220-240/380-420 a 50 Hz.
4.2. APPLICATION
ESTAMPINOX EFI is designed to cater for the needs of auxiliary services in the food-processing, chemical,
pharmaceutical and wine-making industries.
For each type of the pump, the hydraulic performance is given by the choice of impeller diameters and speeds.
The characteristic curves also show the power requirements. The intended us of the pump is defined by its
characteristic curve and operating limits provided in the chapter 9. Technical Specifications.
The range of application for each type of pump is limited. The pump was selected for a given set of
pumping conditions when the order was placed. INOXPA shall not be liable for any damage
resulting from the incompleteness of the information provided by the purchaser (nature of the fluid,
rpm, etc.).
ATTENTION

Installation
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 7
5.Installation
5.1. RECEPTION OF THE PUMP
INOXPA cannot be held responsible for the damage sustained by the equipment during transport
or unpacking. Please visually check that the packaging is not damaged.
The pump package includes the following documents:
•shipping documents,
•installation, service and maintenance instructions manual,
•instructions and service manual of the motor
1
.
Unpack the pump and check the following:
•The suction and discharge connections of the pump, removing any rest of packaging materials,
•The pump and the motor are not damaged,
•If the equipment is not in good condition and/or any part is missing, the carrier should report accordingly as
soon as possible.
5.2. IDENTIFICATION OF THE PUMP
Each pump has a nameplate with the basic data required to identify the model.
1
If the pump has been supplied with a motor from INOXPA
Serial number
01.020.32.0024
01.020.32.0006

Installation
8 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
5.3. TRANSPORT AND STORAGE
The ESTAMPINOX EFI pumps are often too heavy to be stored manually.
Use an appropriate means of transport.
Use the points which are indicated in the drawing for lifting the pump.
Only authorized personnel should transport the pump.
Do not work or walk under heavy loads.
Lift the pump as indicated below:
•Always use two support points placed as far apart as possible.
Always remove the motor shroud before hoisting.
•Secure the supports so that they will not move.
See chapter 9. Technical Specifications to consult dimensions and weights.
During the transport, disassembly or assembly of the pump, there is a risk of loss of stability and
that the pump could fall down and cause damages to the operators. Make sure that the pump is
properly supported.
5.4. LOCATION
Place the pump in a position that allows enough space around it to provide access to the pump as well as to the
motor. See chapter 9. Technical Specifications to consult dimensions and weights.
Install the pump to allow proper ventilation.
If the pump is installed outdoors, it should be covered by a roof. Its location should allow easy
access for inspection or maintenance operations.
ATTENTION
ATTENTION
ATTENTION
01.020.32.0007
ATTENTION

Installation
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 9
5.4.1. Excessive temperatures
Depending on the fluid to be pumped, high temperatures can be reached inside and around the pump.
Over 68ºC the operator should take protective measures and place warning notices advising of the
danger which exists if the pumped is touched.
The type of protection selected should not isolate the pump entirely. It should allow for the bearings
to be cooled more efficiently and for the bearings to be lubricated.
5.5. PIPES
•As a general rule, install the suction and discharge lines in straight sections, with the minimum possible
number of elbows and fittings in order to reduce any pressure losses that may be caused by friction.
•Make sure that the pump’s ports are properly aligned with the pipework and have a diameter similar to that
of the pump connections.
•Place the pump as close as possible to the suction tank and whenever possible below the liquid level, or
even below the tank level in order to achieve the largest possible static head for suction.
•Install support brackets for the lines as close as possible to the pump’s suction and discharge ports in order
to avoid vibrations and stress on the pump.
5.5.1. Shut-off valves
The pump may be isolated for maintenance. To accomplish this, shut-off valves must be installed and
connected to the pump’s suction and discharge connections.
These valves must ALWAYS be open during the operation of the pump.
5.6. ELECTRICAL INSTALLATION
Only qualified personnel can connect the electric motors.
Take the necessary measures to prevent damage to cables and connections.
Electrical equipment, terminals and components of the control systems may still carry current when
they are disconnected. Contacting them may impose a hazard to operators or cause irreparable
material damage.
Before handling the pump, make sure that the motor is stopped.
•Connect the motor in accordance with the instructions supplied by the motor manufacturer, in accordance
with the current national legislation and in compliance with EN 60204-1.
•Check the direction of rotation (see the signalling label on the pump).
•Start and stop the pump motor momentarily. Make sure that the direction of rotation is correct. If the pump
rotates in the wrong direction it could cause serious damage.
ATTENTION
01.020.32.0008
See from the rear of
the motor

Installation
10 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
See indicator label on the pump.
ALWAYS check the direction of rotation of the motor with liquid inside the pump.
ATTENTION

Start-up
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 11
6. Start-up
Prior to starting the pump, carefully read the instructions in chapter 5. Installation.
Carefully read chapter 9. Technical Specifications. INOXPA will not be liable for improper use of
the equipment.
NEVER touch the pump or the lines if hot liquids are being pumped.
6.1. CHECKS BEFORE STARTING THE PUMP
•Completely open the shut-off valves on the suction and discharge lines.
•If liquid does not flow towards the pump, fill it with the liquid to be pumped.
The pump must never turn dry.
•Check that the power supply matches the rating indicated on the motor plate.
•Check that the direction of rotation of the motor is the right one.
6.2. CHECKS WHEN STARTING THE PUMP
•Check that the pump is not making any strange noises.
•Check if the absolute inlet pressure is sufficient to prevent cavitation in the pump.
•Control the discharge pressure.
•Check for leaks in the sealing areas.
Shut-off valves on the suction pipe must not be used to regulate the flow. All shut-off valves must
be fully open during operation.
Control the motor consumption to prevent an electrical overload.
Reduce the flow rate and the electrical power consumed by the motor:
•by regulating the pump’s discharge flow
•by decreasing the motor speed
ATTENTION
ATTENTION
ATTENTION
01.020.32.0009

Start-up
12 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
Use special protection when the sound pressure in the operation area exceeds 85 db(A).
If the pump has not incorporated a pressure by-pass you should mount a relief valve or any other
device that limits the pressure to 7 bar.

Troubleshooting
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 13
7. Troubleshooting
The following table provides solutions to problems that might arise during the operation of the pump. The pump
is assumed to have been properly installed and be suitable for the relevant application.
Please contact INOXPA if technical assistance is required.
Motor overload
The pump does not provide enough flow or pressure
No pressure on the discharge side
Uneven discharge flow / pressure
Noise and vibration
The pump gets clogged
Overheated pump
Excessive wear
The mechanical seal leaks
PROBABLE CAUSES
SOLUTIONS
•
•
Wrong direction of rotation
Reverse the direction of rotation
•
•
•
•
NPSH is not high enough
Raise the suction tank
Lower the pump
Reduce the vapour pressure
Widen the diameter of the suction pipe
Shorten and simplify the suction line
•
Pump not drained
Drain or fill
•
•
•
•
Cavitation
Increase suction pressure
•
•
•
•
Air is suctioned by the pump
Check the suction pipe and all its
connections
•
•
•
Clogged suction pipe
Check the suction pipe and all its
filters, if any
•
•
Discharge pressure too high
If necessary, reduce load losses, e.g.
by increasing the pipe diameter
•
•
•
Flow too high
Reduce the flow by means of a
diaphragm.
Partially close the discharge valve.
Trim the impeller
Decrease speed
•
•
•
•
•
•
Fluid viscosity too high
Reduce the viscosity, e.g. by heating
the fluid
•
•
•
•
•
Fluid temperature too high
Reduce the temperature by cooling
the fluid
•
Mechanical seal damaged or worn
out
Replace the seal
•
O-rings unsuitable for the fluid
Fit suitable O-rings. Consult the
manufacturer.
•
•
•
•
The impeller scrapes
Lower the temperature
Reduce the suction pressure
Adjust the impeller / cover play
•
•
•
•
Tension in the lines
Connect the pipes to the pump without
tension
•
•
•
•
Foreign matter in the liquid
Install a filter in the suction pipe
•
Mechanical seal spring tension Is too
low
Adjust as indicated in this manual

Maintenance
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8. Maintenance
8.1. GENERAL CONSIDERATIONS
This pump, just like any other machine, requires maintenance. The instructions contained in this manual cover
the identification and replacement of spare parts. The instructions are aimed at maintenance personnel and
those responsible for the supply of spare parts.
Carefully read chapter 9. Technical Specifications.
Maintenance work can only be carried out by qualified personnel that are trained and equipped
with the necessary resources to carry out this work.
All parts or materials that are replaced must be properly disposed of/recycled in accordance with
the current directives applicable in each area.
ALWAYS disconnect the pump before beginning any maintenance work.
8.2. CHECK THE MECHANICAL SEAL
Periodically check that there are no leaks around the shaft. If leakage is detected through the mechanical seal,
replace it following the instructions in the chapter 8.6. Disassembly and assembly of the pump.
8.3. MAINTENANCE OF THE SEALS
SEALS REPLACEMENT
Preventive maintenance
Replace after twelve (12) months. We also recommend replacing the
gaskets during seal or pump shaft replacement.
Maintenance after a leak
Replace at the end of the process. If the impeller nut gasket fails, the
threaded hole on the impeller and the threads on the end shaft have to be
cleaned.
Scheduled maintenance
Regularly check that there are no leaks and that the pump is operating
correctly.
Keep a record of the pump.
Use statistics to plan inspections.
Lubrication
During assembly, use soapy water when fitting the different gaskets to
allow them to slide better.
The period between each preventive maintenance service will vary depending on the operating condition of the
pump: temperatures, flow, number of operating hours, cleaning solutions used, etc.
8.4. TIGHTENING TORQUE
If not stated otherwise, the torques listed in the following table should be applied to the nuts and bolts of this
pump.
Size
Nm
lbf·ft
M6
10
7
M8
21
16
M10
42
31
M12
74
55
M16
112
83

Maintenance
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 15
8.5. STORAGE
Before being stored the pump must be completely emptied of liquids. Avoid, as far as possible, the exposure of
the parts to excessively damp atmospheres.
8.6. DISSASEMBLY AND ASSEMBLY OF THE PUMP
The assembly and disassembly of the pumps should be done by qualified personnel. Make sure that the
personnel read carefully this instruction manual and, in particular, those instructions which refer to the work they
will perform.
Incorrect assembly or disassembly may cause damage to the pump’s operation and lead to high
repair costs and a long period of downtime.
INOXPA is not responsible for accidents or damages caused by a failure to comply with the
instructions in this manual.
Preparation
Provide for a clean working environment so some parts, including the mechanical seal, require very careful
handling and others have close tolerances.
Check that the parts which are used are not damaged during transport. When doing this, you need to inspect
the adjustment edge, the butted faces, the tight fit, burrs, etc.
After each disassembly, carefully clean the parts and check for any damage. Replace all damaged parts.
Tools
Use the proper tools for assembly and disassembly operations. Use them correctly.
Cleaning
Before disassembling the pump, clean it outside and inside.
NEVER clean the pump by hand when it is running.
ATTENTION

Maintenance
16 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
8.6.1. Disassembly of the pump and single mechanical seal
1. Remove the screws, nuts and washers (51, 53 and 54A) and
disassembly the pump casing (01).
2. Check the condition of the O-ring (80) on the pump casing
and replace it if damaged.
3. Place an open-end wrench on the flat sides of the shaft (05)
to prevent it from rotating. For ESTAMPINOX EFI 3 pump
place a pin into the shaft hole (05).
4. Pull out the impeller (02) disassembling the screw (52A) and
washer (53). For the EFI-3, quit the blind nut (45) and
washer (35).
5. Remove the rotating part of the seal (08) sliding in front of
the shaft (05).
6. Remove the pump cover (03) from the lantern (04).
7. Manually remove the stationary part of the seal (08) which is
located in the pump cover (03).
8. Remove the splash ring (82).
9. Loosen the studs (55) from the shaft (05) and take them off
from the motor (93).
8.6.2. Assembly of the pump and single mechanical seal
1. Place the shaft (05) on the motor (93).
2. Fix the shaft (05) with the studs (55) to the motor (93)
leaving it to gauge the impeller (02) with the pump cover
(03).
3. Hold the pump cover (03) on the lantern (04) with the hand and gauge the assembly position according to
the distance A.
Pump model
A (mm)
EFI - 0 / 1
33
EFI - 2 / 3
35
01.020.32.0014
01.020.32.0010
01.020.32.0011
01.020.32.0014
01.020.32.0012
01.020.32.0029

Maintenance
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 17
4. Now, tighten the studs (55) strongly that fix the shaft (05) to
the motor (93) from the bottom lantern window (04).
5. Take off the pump cover (03).
6. Place the splash ring (82) in the shaft (05).
7. Fit the stationary part of the mechanical seal (08) on the
pump cover (03).
8. Put the pump cover (03) on the lantern (04).
9. Fit the rotating part of the mechanical seal (08) in the shaft
(05) and place the impeller (02).
10.Fix the impeller (02) with the screw (52A) and washer (53).
For the EFI-3, fix it with the washer (35) and blind nut (54B).
When installing the new seal, use soapy water when fitting the different parts and seals to allow
them to slide better. Apply to the stationary as well as the rotating parts.
11.Mount the O-ring (80) on the pump cover (03) taking care
that it is not twisted.
12.Put the pump casing (01) and secure it on the lantern (04)
by the screws, nuts and washers (51, 53A and 54).
01.020.32.0015
ATTENTION
01.020.32.0010

Technical Specifications
18 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
9.Technical Specifications
Maximum operating pressure 600 kPa (6 bar)
Temperature range -10ºC to 120ºC
Maximum speed 3500 rpm (50 Hz)
Materials
Parts in contact with the product 1.4404 (AISI 316L)
Other stainless steel parts 1.4301 (AISI 304)
Seals in contact with the product EPDM (standard)
Other materials for the seal consult with INOXPA
Surface finish matt
Mechanical seal
Type of seal: single inside seal
Stationary parts material graphite (C) (standard)
Rotary parts material ceramic (Cer) (standard)
Seal material EPDM (standard)
Motor
Type three-phase asynchronous motor, flange B34 (B35 for
motor frame 132), 2 or 4 poles, IP55 protection, class F
insulation
Power 0,37 to 7,5 kW
Voltage and frequency 220-240 V Δ / 380-420 V Υ, ≤ 4 kW
380-420 V Δ / 660-690 V Υ, ≥ 5,5 kW
9.1. WEIGHT WITH SHROUD
9.2. WEIGHT WITHOUT SHROUD
Weight (kg)
IEC
71
80
90
100
112
132
kW
0,25
0,37
0,55
0,75
1,1
2,2
2,2
4
5,5
7,5
EFI 0
11
11
EFI 1
17
18
EFI 2
24
26
EFI 3
39
44
48
78
Weight (kg)
IEC
71
80
90
100
112
132
Kw
0,25
0,37
0,55
0,75
1,1
2,2
2,2
4
5,5
7,5
EFI 0
8
8
EFI 1
12
13
EFI 2
19
21
EFI 3
32
37
41
67

Technical Specifications
INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04 19
9.3. DIMENSIONS WITH SHROUD
Pump type
Motor
Dimensions (mm)
IEC
A
ØB
C
EFI 0
71
430
230
260
EFI 1
80
500
290
315
EFI 2
90
517
290
335
EFI 3
100
600
350
375
112
600
350
390
132
730
400
425
01.020.32.0025

Technical Specifications
20 INOXPA S.A.U. 01.020.30.08EN · (0) 2021/04
9.4. DIMENSIONS WITHOUT SHROUD
Pump type
Motor
Dimensions (mm)
IEC
kW
rpm
A
ØB
C
EFI 0
71
-
-
370
140
190
EFI-1
80
-
-
405
165
220
EFI 2
90L
2,2
2 900
475
200
240
90S
1,1
1 450
450
200
240
EFI 3
100
-
-
520
250
265
112
-
-
535
250
295
132
-
-
600
250
335
01.020.32.0026