INOXPA HYGINOX SEN Manual

INSTALLATION, SERVICE AND
MAINTENANCE INSTRUCTIONS
HYGINOX SEN
INOXPA, S.A.
c/Telers, 54 Aptdo. 174
E-17820 Banyoles
Girona (Spain)
Tel. : (34) 972 - 57 52 00
Fax. : (34) 972 - 57 55 02
email: [e-mail]
www.inoxpa.com
01.013.30.01EN
(0) 2014/04
01.013.32.0001

EC Declaration of Conformity
The manufacturer: INOXPA, S.A.
c/ Telers, 57
17820 Banyoles (Girona), Spain
herewith declares that the machine:
HYGINOX SEN centrifugal pump
with the serial number:________________
conforms to the relevant provisions of the following directives:
Machinery Directive 2006/42/EC (RD 1644/2008)
Low voltage Directive 2006/95/EC
Electromagnetic Compatibility Directive 2004/108/EC
Applicable harmonised Standards:
UNE-EN ISO 12100:2012
UNE-EN 809:1999+A1:2010
Identification of the person empowered to draw up the Declaration on behalf of the manufacturer, and qualified to
compile the technical file established by the Community:
Banyoles, 2April 2014
David Reyero Brunet
Technical Office Manager

2014/02 1.Safety 3
1. Safety
1.1. INSTRUCTION MANUAL
This manual contains information regarding the reception, installation, operation, assembly, disassembly and
maintenance of the HYGINOX SEN pump.
The information published in this instruction manual is based on updated data.
INOXPA reserves the right to modify this instruction manual without prior notice.
1.2. INSTRUCTIONS FOR START-UP
This instruction manual contains essential and useful information for the correct handling and maintenance of your
pump.
Carefully read the instructions prior to starting the pump, familiarise yourself with the installation, operation and
correct use of the pump and strictly follow the instructions. These instructions must be kept in a safe location near the
installation area.
1.3. SAFETY
Warning symbols
Danger for people in general
Danger of injury caused by rotating
equipment parts
Electrical hazard
Danger! Caustic or corrosive agents
Danger! Suspended loads
Danger to the correct operation of the
equipment
Mandatory to ensure safety at the workplace
Mandatory use of safety goggles
1.4. GENERAL SAFETY INSTRUCTIONS
Read the instruction manual carefully before installing and starting the pump. If in doubt, please contact
INOXPA.
During the installation
The Technical Specifications in Chapter 8 shall always be observed.
Never start the pump before connecting it to the pipework.
Do not operate the pump if the pump cover is not fitted.
Check for correct specifications of the motor, especially if its working conditions create an explosion
hazard.
During the installation, all the electrical work must be carried out by authorised personnel.

4 1.Safety 2014/02
During operation
The 1H Technical Specifications in Chapter 8 shall always be observed. The specified limit values shall NEVER
be exceeded under any circumstance.
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.
During maintenance
The Technical Specifications in Chapter 8 shall always be observed.
NEVER disassemble the pump until the pipes have been emptied. Remember that liquid will always remain
inside the pump’s body (if it does not have a purge). Bear in mind that the liquid being pumped 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 pump prior to carrying out any maintenance. Remove the
fuses and disconnect the cables from the motor terminals.
All electrical work must be carried out by authorised personnel.
Compliance with the instructions
Any failure to comply with the instructions may impose a risk to the operators, the environment and the machine, and
may ultimately result in the loss of any 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.
Warranty
Any warranty will be void immediately and lawfully; additionally, INOXPA shall be compensated for any civil liability
claims submitted by third parties, in the following cases:
The service and maintenance work have not been carried out in accordance with the service instructions, the
repairs have not been carried out by our personnel or have been carried out without our written authorisation;
Modifications have been carried out on our material or equipment without written authorisation;
The parts or lubricants used are not INOXPA genuine parts;
The material or equipment has been improperly used, has been used carelessly, or has not been used according
to the instructions and their intended purpose;
The pump parts are damaged because they have been subjected to high pressure due to not having used a
safety valve.
The General Terms of Delivery already in your possession are also applicable.

2014/02 1.Safety 5
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 is only possible with prior written authorisation from INOXPA
Please do not hesitate to contact us in case of doubts or if further explanations are required regarding specific data
(adjustments, assembly, disassembly, etc.).

6 2.Table of contents 2014/02
2. Table of contents
1. Safety 3
1.1. Instruction manual.........................................................................................................3
1.2. Instructions for start-up..................................................................................................3
1.3. Safety...........................................................................................................................3
1.4. General safety instructions..............................................................................................3
2. Table of contents 6
3. General Information 7
3.1. DESCRIPTION ...............................................................................................................7
3.2. Application ....................................................................................................................7
4. Installation 8
4.1. Reception of the pump ...................................................................................................8
4.2. Handling and storage .....................................................................................................9
4.3. Location........................................................................................................................9
4.4. Pipes ............................................................................................................................9
4.5. Electrical installation.....................................................................................................10
5. Starting the pump 11
5.1. Starting the pump........................................................................................................11
6. Operating problems 12
7. Maintenance 13
7.1. General considerations .................................................................................................13
7.2. Storage.......................................................................................................................13
7.3. Cleaning......................................................................................................................13
7.4. Assembly / disassembly of the pump .............................................................................15
8. Technical Specifications 17
8.1. Technical Specifications................................................................................................17
8.2. Tightening torques.......................................................................................................17
8.3. Cross section HYGINOX SEN .........................................................................................18
8.4. Parts list HYGINOX SEN................................................................................................18

2014/02 3.General Information 7
3. General Information
3.1. DESCRIPTION
HYGINOX SEN is a range of close-coupled centrifugal pumps with hygienic design, suitable for use in the dairy,
beverage, and food processing industry in general.
This single-stage horizontal pump has a circular body with axial suction and tangential discharge. The main pump
components are: body, impeller, cover, lantern and a shaft which is rigidly coupled to the motor shaft.
The pump is driven by a NEMA Premium Efficiency C face motor.
3.2. APPLICATION
As a general rule, the most common application of HYGINOX SEN pumps in their standard version is in the food
processing industry, mainly to transfer liquids.
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 and NPSH requirements. The intended use of the pump is defined by its
characteristic curve and operating limits provided in the Technical Specifications section.
Misuse of the pump or its use beyond the operating limits may be dangerous or cause permanent damage
to the equipment.

8 4.Installation 2014/02
01.011.32.0014
4. Installation
4.1. RECEPTION OF THE PUMP
INOXPA will not be liable for any deterioration of the material due to transport or unpacking. Visually
check that the packaging has not been damaged.
The following documentation is included with the pump:
Shipping documents
Instructions and Servicing manual for the pump.
Instructions and Servicing manual for the motor (*).
(*) If the pump has been supplied with a motor from INOXPA.
Unpack the pump and check the following:
The suction and discharge connections on the pump,
removing any remaining packaging material.
Check that the pump and motor have not suffered any
damage.
If not in good material condition and/or if not all the parts
are included, the shipping carrier should submit a report
as soon as possible.
Identification of the pump
Each pump has a nameplate with the basic data required to identify the model.
Pump plate
Serial number
01.30.32.000 2
01.30.32.000 2
01.013.32.0002

2014/02 4.Installation 9
4.2. HANDLING AND STORAGE
HYGINOX SEN pumps are too heavy to be handled and stored manually.
Lift the pump as indicated below:
4.3. 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 the Technical Specifications for dimensions and weights).
Place the pump on a flat and level surface.
Install the pump so as to allow proper ventilation.
If the pump is installed outdoors, it must be sheltered under a roof. Its location must allow for easy access
during any inspection or maintenance tasks.
4.4. PIPES
As a general rule, install the suction and discharge pipes in straight sections, with the minimum possible number of
bends and fittings in order to reduce as much as possible 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, if possible below the fluid level, or even below the tank, in
order to achieve the largest possible static head for suction.
Install support brackets for the pipes as close as possible to the pump's suction and discharge ports.
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 operation of the pump.
ATTENTION!
Always remove the motor
shroud before hoisting.
01.013.32.0003

10 4.Installation 2014/02
4.5. ELECTRICAL INSTALLATION
The connection of the electrical motors must be performed by qualified personnel.
Take the necessary precautions to prevent damage to cables and connections.
Electrical equipment, terminals and components of the control systems may still bear electrical current
when they are disconnected. Contact with them may be dangerous for operators or cause irreversible
damage to equipment.
Prior to handling the pump, make sure that the electrical panel is disconnected.
Connect the motor in accordance with the instructions supplied by the motor manufacturer.
Check the direction of rotation.
Start and stop the pump motor momentarily. Make sure, looking at the
pump from behind, that the motor fan rotates in a clockwise direction.
ALWAYS check the direction of rotation of the motor with liquid inside the pump.
ATTENTION!
See indicator label on the pump.
Seen from the rear of
the motor.
01.013.32.0004

2014/02 5.Starting the pump 11
5. Starting the pump
Prior to starting the pump, carefully read the instructions in Chapter 4. 49H Installation .
5.1. STARTING THE PUMP
Carefully read Chapter 8. 50H Technical Specifications . INOXPA cannot be held responsible for the improper
use of the equipment.
NEVER touch the pump or the pipes if hot liquids are being pumped.
Checks before starting up the pump
Fully open the shut-off valves on the suction and discharge pipes.
If liquid does not flow into the pump, fill it with the liquid to be pumped.
The pump must NEVER rotate without a liquid inside it.
Check that the direction of rotation of the motor is correct.
Checks to be carried out when starting up 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. Check the curve to determine the
minimum pressure required above the vapour pressure (NPSHr).
Control the discharge pressure.
Check that there are no leaks through the sealed areas.
Do not use a shut-off valve to regulate the flow in the suction pipe. 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.
When the sound pressure level in the operating area exceeds 80 dB(A), appropriate personal protective
equipment must be used.
01.013.32.0005

12 6.Operating problems 2014/02
6. Operating problems
The following table provides solutions to problems that may arise while operating the pump. It is assumed that the
pump has been properly installed and that is has been selected correctly for the specific application.
Please contact INOXPA if technical assistance is required.
Motor overload.

The pump flow or pressure is insufficient.

There is no pressure on the discharge side.

Uneven discharge flow rate / pressure.

Noise and vibrations.

The pump gets clogged.

Pump overheated.

Abnormal wear.

The mechanical seal leaks.

PROBABLE CAUSES
SOLUTIONS
•
•
Wrong direction of rotation
Reverse the direction of rotation
•
•
•
•
Insufficient NPSH
Raise the suction tank.
Lower the pump.
Reduce the vapour pressure.
Widen the diameter of the suction pipe.
Shorten and simplify the suction pipe.
•
Pump not purged
Purge or fill
•
•
•
•
Cavitation
Increase the suction pressure.
•
•
•
•
The pump sucks in air
Check the suction pipe and all of its
connections
•
•
•
Suction pipe obstructed
Check the suction pipe and the filters, if
available
•
•
Discharge pressure too high
If necessary, reduce the pressure losses,
for example, by increasing the pipe
diameter.
•
•
•
Flow rate too high
Reduce the flow by means of a
diaphragm.
Partially close the discharge valve.
Trim the impeller.
Decrease speed
•
•
•
•
•
•
Viscosity of the liquid too high
Reduce the viscosity, for example, by
heating the liquid
•
•
•
•
•
Liquid temperature is too high
Decrease the temperature by cooling the
liquid
•
Mechanical seal worn or damaged
Replace the seal
•
Inadequate O-rings for the liquid
Install the correct O-rings after
consulting the supplier
•
•
•
•
The impeller scrapes
Lower the temperature
Reduce the suction pressure.
Adjust the impeller/cover play.
•
•
•
•
Tension in the pipes.
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

2014/02 7.Maintenance 13
7. Maintenance
7.1. GENERAL CONSIDERATIONS
This pump, just like any other machine, requires maintenance. The instructions 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 8. 51H Technical Specifications .
All replaced material should be duly disposed of/recycled according to the directives in force in each area.
ALWAYS disconnect the pump before beginning any maintenance work.
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 section Assembly and Disassembly.
7.2. STORAGE
Before storing the pump it should be completely drained. Prevent as far as possible exposing the parts to excessively
humid environments.
7.3. CLEANING
The use of aggressive cleaning products such as caustic soda and nitric acid may burn the skin.
Wear rubber gloves during all cleaning procedures.
Always wear protective goggles.
CIP (Clean-in-Place) cleaning
If the pump is installed in a system with a CIP process, its disassembly will not be required.
If an automatic cleaning process is not available, disassemble the pump as indicated in the section 52H Assembly and
Disassembly .
Cleaning solutions for CIP processes.
Only use clear water (chlorine-free) to mix with the cleaning agents:
a) Alkaline solution: 1% by weight of caustic soda (NaOH) at 70ºC (150ºF)
1 kg NaOH + 100 litres of water = cleaning solution
or
2.2 litres of 33% NaOH + 100 litres of water = cleaning solution
b) Acid solution: 0.5% by weight of nitric acid (HNO3) at 70ºC (150ºF)
0.7 litres of 53% HNO3+ 100 litres of water = cleaning solution

14 7.Maintenance 2014/02
Check the concentration of the cleaning solutions; incorrect concentrations may lead to deterioration of
the pump seals.
To remove any traces of cleaning products, ALWAYS perform a final rinse with clean water at the end of the cleaning
process.
SIP (Sterilization-in-Place) cleaning
Sterilization with steam is applied to all equipment including the pump.
Do NOT use the equipment during the steam sterilization process.
The parts/materials will not be damaged if the indications specified in this manual are observed.
Make sure that no cold liquid enters the system until the temperature of the pump is lower than 60°C
(140°F).
The pump generates an important pressure loss through the sterilization process. We recommend the
use of a branch circuit with a discharge valve to ensure that steam / superheated water sterilizes the
integrity of the circuit.
Maximum conditions during the SIP process with steam or overheated water
a) Max. temperature: 140°C / 284°F
b) Max. time: 30 min
c) Cooling: Sterile air or inert gas
d) Materials: EPDM
FPM

2014/02 7.Maintenance 15
7.4. ASSEMBLY / DISASSEMBLY OF THE PUMP
Pump and mechanical seal
Disassembly
1. Remove the clamping ring (15) and disassemble
the pump casing (01).
2. Check the condition of the O-ring (80A) on the
pump body and replace it if damaged.
3. Remove the screws (50A) and the lantern
protections (47A).
4. Introduce a pin in the hole in the shaft (05) to
prevent the shaft from rotating.
5. Remove the impeller nut (45) to release the O-
ring (80D).
6. Pull out the impeller (02). If necessary, hit it with
a dead blow using a plastic mallet in order to
disengage the cone.
7. Remove the rotating part of the mechanical seal
(08A) from the rear side of the impeller (02).
8. Remove the pump cover (03) from the lantern
(04).
9. Manually remove the stationary part of the
mechanical seal (08A) which is located in the
pump cover (03).
10. Remove the splash ring (82) from the shaft (05).
11. Loosen the studs (55) on the shaft (03) in order
to separate the shaft (03) from the motor (93).
01.013.32.0006
01.013.32.0007
01.013.32.0008

16 7.Maintenance 2014/02
Assembly
1. Fit the shaft (03) on the motor (93).
2. Secure the shaft (03) to the motor (93) with the
studs (55), leaving it slightly loose to allow
positioning the impeller (02) relative to the
cover (03).
3. Hold the cover (03) on the lantern (04) with the
hand.
4. Fit the impeller (02) on the shaft, secure it with
the nut (45) and check the mounting position
with a feeler gauge.
5. Firmly tighten the studs (55) securing the shaft
(03) to the motor (93).
6. Unscrew the nut (45) and remove the impeller
(02) and the cover (03).
7. Fit the splash ring (82) on the shaft (03).
8. Place the stationary part of the mechanical seal
(08A) on the cover (03).
9. Install the cover (03) on the lantern (04).
10. Slide the rotating part of the mechanical seal
(08A) over the shaft (03) and install the impeller
(02).
11. Place the O-ring (80D) on the nut (45) and
secure the impeller (02) with the nut (45).
12. Place the O-ring (80A) on the cover (03) making
sure it is not twisted.
13. Install the body (01) and secure it to the
Lantern (04) using the clamp ring (15); firmly
tighten the clamp nut.
ATTENTION! When installing the new mechanical seal, use soapy water when fitting the different
parts and gaskets to allow them to slide better; apply to the stationary part on the cover as well as
the rotating parts on the shaft.
01.013.32.0011
01.013.32.0006
01.013.32.0010
01.013.32.0006

2014/02 8.Technical Specifications 17
8. Technical Specifications
8.1. TECHNICAL SPECIFICATIONS
Maximum operating pressure 1000 kPa (10 bar)
Temperature range - 10 to 120 °C (EPDM)
Maximum speed 3000 rpm (50 Hz)
3600 rpm (60 Hz)
Materials
Parts in contact with the product AISI 1.4404
Other steel parts AISI 304 L (1.4306)
Seals in contact with the product EPDM (standard)
FPM (ask for other materials)
Exterior surface finish Bright polished
Interior surface finish Polished Ra<0,8 μm
Mechanical seal
Type Single internal seal
Material rotary part Graphite (C) (standard)
Silicon carbide (SiC)
Material stationary part Silicon carbide (SiC) (standard)
Seal material EPDM (standard)
FPM
Motor
Type Three-phase asynchronous motor, NEMA C Face, 2 or 4 poles, IP55
protection, class F insulation
Power 1HP to 30HP
Voltage and frequency 208-230 V / 460 V, 60 Hz
8.2. TIGHTENING TORQUES
If not stated otherwise, the torques listed in the following table should be applied on 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

18 8.Technical Specifications 2014/02
8.3. CROSS SECTION HYGINOX SEN
8.4. PARTS LIST HYGINOX SEN
Item
Description
Quantity
Material
01
Pump housing
1
AISI 316L
02
Impeller
1
AISI 316L
03
Pump cover
1
AISI 316L
04
Lantern
1
AISI 304
05
Shaft
1
AISI 316L
08A
Mechanical seal
1
-
09
Seal cover
1
AISI 316L
15
Clamp body
1
AISI 304
45
Cap nut
1
AISI 316L
47A
Lantern protection
2
PETP
50A
Protector screw
4
A2
52
Hexagonal screw
4
A2
55
Threaded stud
2
A2
80A
O-ring
1
EPDM
80D
O-ring
4
EPDM
82
Splash ring
1
-
93
Motor
1
-
01.013.32.0009

In addition to our branches, INOXPA has a network of independent distributors in over 50 countries worldwide.For further information, visit our
website. 58Hwww.inoxpa.com
INOXPA, S.A.
DELEGACIÓN NORD-ESTE / ARAGÓN
DELEGACIÓN LEVANTE
c/ Telers, 54 –PO Box 174
BARBERÀ DEL VALLÈS (BCN)
PATERNA (VALENCIA)
17820 BANYOLES (GIRONA)
Tel: [phone]
Tel: [phone]
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Fax: [phone]
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e-mail: inoxpa.norde[email protected]
e-mail: inoxpa.lev[email protected]
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DUBAI - U.A.E
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IMPROVED SOLUTIONS PORTUGAL LDA
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Maharashtra, INDIA.
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EQUIPMENT, CO., LTD.
MOSCOW (RUSIA)
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JIAXING (China)
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