PVR EU 160 Manual

EU 160
Lubricated vane
vacuum pump
Operating and maintenance
instructions
Publication Number:
LI 2333.03 January 2020
EN
TRANSLATION

Operating and maintenance instructions
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LI 2333.03
Index
1. General information ..............................................................................................page 3
2. Product specifications ....................................................................................... page 4
2.1 Pump description............................................................................................. page 4
2.2 Expected use.....................................................................................................page 5
2.3 Forbidden use....................................................................................................page 5
2.4 Protections........................................................................................................page 5
2.5 Accessories .......................................................................................................page 5
3. Safety rules ........................................................................................................... page 6
4. Transport/handling ............................................................................................ page 8
4.1 Lifting ................................................................................................................ page 8
4.2 Unpacking and components control.............................................................. page 8
4.3 Storage ............................................................................................................. page 8
5. Installation and operation .................................................................................. page 9
5.1 Assembly........................................................................................................... page 9
5.2 Operating vacuum range changing ..............................................................page 10
5.3 Location ........................................................................................................... page 11
5.4 Connection to the machine............................................................................page 12
5.5 Discharge air pipe line installation ................................................................ page 12
5.6 Electrical connection......................................................................................page 13
5.7 Commissioning ...............................................................................................page 14
5.8 Tips for using................................................................................................... page 14
5.9 Water vapour intake........................................................................................page 15
6. Servicing...............................................................................................................page 15
6.1 General information ........................................................................................page 15
6.2 Oil change........................................................................................................page 16
6.3 Coupling elastic element replacement ......................................................... page 17
6.4 Exhaust filters replacement ...........................................................................page 18
6.5 Spares necessary for normal servicing.........................................................page 18
6.6 Pump overhaul ................................................................................................page 18
6.7 How to order spare parts................................................................................page 18
7. Lubricants.............................................................................................................page 19
8. Decommissioning................................................................................................page 19
9. Return for repair..................................................................................................page 19
10. Disposal.............................................................................................................. page 20
11. Troubleshooting ................................................................................................. page 21
Attachments
Technical data sheet, exploded view and parts list (RDT)
EC declaration of conformity (DC)
Electric motor operating instructions
Instructions for the accessories

Operating and maintenance instructions
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1. General information
This manual contains information necessary for the proper operation of the pump in
order to prevent unsuitable use and for the safety of the operators. Do not attempt any
other type of operation without having first contacted our Service Department. The
information provided herewith does not intend to replace, integrate or change any rules,
regulations, law by decree, directive or law of specific character in force in the Country
where the installation takes place.
The suggestions given to the sta engaged in the installation and servicing assumes
that the personnel is expert and prepared in facing any problem of servicing, both
mechanical and electrical. For any questions or information not included in this manual,
please contact our Service Department,always providing: model (Model),serial number
(Serial), year of manufacture, stated on the pump name plate.
Symbols used:
WARNING:
Instructions that, if not followed, ELECTRIC SAFETY
could result in serious
personal injuries.
FIRE HAZARD
NOTE:
Instructions that, if not followed,
could result in pump damages. READ THE OPERATING
INSTRUCTIONS
HOT SURFACES
INLET PORT
HARMFUL SUBSTANCES
EMISSIONS EXHAUST PORT
DO NOT DISPOSE INTO
THE ENVIRONMENT DISPOSAL

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2. Product specifications
2.1 Pump description
EU 160 pumps are single-stage, rotary vane lubricated vacuum pumps, with oil
recirculation.
The flanged electric motor is coupled by means of an elastic coupling.
Cooling is achieved by means of an air/oil cooler and a centrifugal fan.
At the pump inlet there is a mesh filter in order to protect it from solid parts having
diameter larger than 1.5 mm.
Furthermore, an integrated non-return valve prevents the oil coming back and the return
of air in the chamber to be pumped down during the stop phase.
In the tank there is a system of oil smokes separation from the discharged air (maximum
residual 2PPM/weight corresponding to 2.4 mg/m3).
The separated oil is recovered automatically by the pump.
The gas ballast valve prevent condensation inside the pump when pumping down small
quantity of vapour.

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2.2 Expected use
These vacuum pumps have been designed to handle air and small quantity of water
vapour only. They are suitable to evacuate closed systems or to operate at a constant
vacuum within the following vacuum range:
EU160 from 0.5 to 350 mbar (absolute)
EU160/B from 10 to 850 mbar (absolute)
The ambient temperature and the inlet temperatures must be included between 12°
and 40°C.
In case you get temperatures outside this range, please get in touch with us.
Handling of other types of gas or vapours must be declared in advance to PVR that will
give the conformity to the specific use.
2.3 Forbidden use
WARNING:
The pump MUST NOT handle:
- liquids or solid substances;
- dangerous, explosive or aggressive gases and vapours;
- pure oxygen or air mixtures enriched with oxygen;
It is forbidden to use the discharge of the pump to create even limited pressures.
WARNING:
It is forbidden to install the pump in a potentially explosive environment.
2.4 Protections
The pump must be protected against suction of dust, solids or liquids.
For those applications where such a protection is not ensured, a vacuum gauge must be
installed on the oil tank for a visual check of the exhaust filter clogging.
In order to get an automatic pump stop, a pressure switch set at 0.6 bar can be installed.
Thepumpissuppliedwithoutelectriccontrolpanel.Theelectricmotormustbeprotected
according to the regulations in force.
WARNING:
In case of applications where the pump stop or failure can cause damages to people
or things, safety measures for the system must be adopted.
2.5 Accessories
The following accessories useful for the installation and for the control of the operation
parameters of the pump are available:
- external inlet filter
- connection fittings
- vacuum meters/ vacuum switches
- pressure meters/ pressure switches
- temperature switch
- low oil level switch

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3. Safety rules
WARNING:
Despite of all the precautions adopted when designing the equipment, there are
some risk elements that arise during operation and servicing.
HOT SURFACES
The temperature of the pump surfaces may exceed 80°C.
Install the pump in a protected area accessible only by authorized personnel, to prevent
possible personal injures due to contact with hot surfaces.
The pump can be placed inside other machines by adopting the necessary safeguards.
Before carrying out any maintenance on the pump, be sure the pump is cold.
HARMFUL SUBSTANCES EMISSIONS
The discharged air contains part of traces of oil mist.
Check the compatibility with the environment.
Make sure a correct air change is allowed otherwise convey the pump discharge outside.
A failure or the seals wear can cause an oil leakage.
Avoid the dispersion to the ground and the pollution of other materials. In case that any
air containing dangerous substances must be pumped down (for example, biological
or microbiological agents), make sure to adopt filtering systems before introducing air
in the work environment.
Used discharged oil from the pump must be disposed in accordance with the regulations
in force in the Country of use.
Do not dispose into the environment.
HAZARD CAUSED BY VACUUM
Any contact with parts under vacuum can cause injuries.
Avoid any contact with the pump inlet port during the pump operation. Introduce air in
the inlet circuit before every operation cycle.
HAZARD CAUSED BY PRESSURE
The pump tank is pressurized. Do not open the oil filling and discharge plugs during
operation.
FOR A SAFE MAINTENANCE
All maintenance operations must be carried out with the pump idle, disconnected from
the electrical supply, with the pump cold, vented to atmospheric pressure. Prevent
unexpected start-up (e.g. block the power switch with a personal lock).

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ELECTRIC SAFETY
Some components of the electric equipment are electrically charged during operation.
Any contact may cause serious injuries to persons or objects.
Connection and control of the electric system must be carried out by skilled personnel
only.
The electrical equipment must comply with the EN 60204-1 standard and with any other
law in force in the Country of use.
Besides, electrical equipment must comply with EN 61000-6-4 and EN 61000-6-2
standards concerning electromagnetic compatibility and electromagnetic immunity
for industrial environment.
FIRE HAZARD
WARNING! The use of the pump in situations unforeseen or not recommended by this
manual, as well as lack of correct maintenance, may create high risks for overheating
or fire.
In case of a fire do not use water to extinguish but use a powder CO2extinguisher or
other means compatible with the electrical equipment and lubricating oil.

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4. Transport/handling
4.1 Lifting
The orientation of the packed components must correspond to the instructions given
by the pictograms on the external covering of the packaging.
For unloading use a lifting equipment suitable for the pump weight.
For lifting the packaging and the pump, please refer to the figures here below.
Pump packaged (Figure 1)
Pump with motor (Figure 2).
Pump without motor (Figure 2).
4.2 Unpacking and components control
When receiving the machine, check that the packaging is intact or shows any signs of
damagesoccurredduringtransportation.Ifthereisnodamage,proceedtotheunpacking
and check the machine further. In case of damages are found, inform immediately PVR
and the carrier. A representative will contact you or it may be dispatched to the site to
inspect and file full damage report.
4.3 Storage
Thepumpsmustbe storedor transportedwithoutoilandprotectedfromtheatmospheric
agents at a temperature between -15°C and 70°C (normal humidity rate max. 95% non
condensing).
EU 205
Fig.2
L HB
Packing size 930 mm 410 mm490 mm
Pump Packaged pump
Weight of the pump with motor 50Hz
104 Kg
110 Kg
75 Kg
114 Kg
120 Kg
85 Kg
Weight of the pump with motor 60Hz
Weight of the pump without motor
Fig.1
L
B
H

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5. Installation and operation
5.1 Assembly
If the pump is supplied without any electric motor, install a motor whose characteristics
are the same as stated on the technical sheet, constructive form IM B 5.
WARNING:
- Use lifting equipment suitable for the motor weight (between 29 and 35 Kg
depending on the versions)
- To assure the continuity of the equipotential circuit of the pump, clean the contact
surfaces very well, by removing any grease or protective painting.
NOTE:
After the assembly, check that the distance between the two coupling halves is
20 ±1.5 mm (Figure 4)
Remove inlet and exhaust plastic caps.
Fit the external filter in horizontal position to prevent dirt coming inside the pump
during the cleaning of the cartridge. (Figure.5)
Fig.5
Fig.4
20
+1,5
0
A

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5.2 Operating vacuum range changing
Pumps of EU205 - EU300 series are fitted with a manual selector switch for the choi-
ce of the suitable working vacuum range:
· EU from 0.5 to 300 mbar
· EU/B from 10 to 850 mbar
In case the pump working range needs to be changed, please follow the instructions.
Remove the casing (Pos.89) by unscrewing the screws (Pos.52-92) to reach the tap
(Pos.109).
Position the selector switch horizontal for the EU type, position it vertical for the
EU/B one. The predetermined vacuum range is the one stated on the pump name
plate.
89 92 52
EU
EU/B
109