VacEco Eng

VACSOUND
ECO
D12 – D18 – D28
Code: 8.003.A.002 - rev. 5 26/11/2018 File: VacEco_eng.doc

2 VACSOUND ECO – Operating and maintenance instructions
CONTENTS
1. Preface 5
1.1 Purpose of this chapter 5

1.2 Safety rules 5
1.3 How to use this manual 6
2. Description and characteristics 7

2.2 Technical description 7
2.3 Lubrication 8
2.4 Vacuum seals 8
2.5 Gas Ballast Valve 8
2.6 Anti-suckback device 8
2.7 Technical data 9
2.7.1 Clearance dimensions 11
3. Installation and operation 13

3.2 Safety precautions 13
3.3 Transport and installation 13
3.4 Preliminary operations 14
3.5 Electrical connections 14
3.5.1 Models with single-phase motor 14
3.5.2 Models with three-phase motor 14
3.6 Connections on suction and exhaust sides 15
3.7 Starting and running the pump 15
3.8 Stopping the pump 16
4. Maintenance 17

4.2 Safety rules 17
4.2.1 Warning notes 17
4.2.2 Caution notes 18
4.3 Maintenance actions 18
4.4 Lubricants 19
4.5 Scheduled Maintenance Cards 20
4.6 Unscheduled Maintenance Cards 23
4.7 Troubleshooting and corrective action 44
5. Spare parts 47

5.2 Spare Parts List 47
VACSOUND ECO – Operating and maintenance instructions 3

PURPOSE OF THE MANUAL
This manual details the procedures for installation and operation of the VACSOUND D12,
D18 and D28 pumps.
The manual comprises 5 chapters, as described below:
1. Chapter 1, PREFACE, provides general safety precautions and information about the
structure of the manual and how to use it;
2. Chapter 2, DESCRIPTION AND CHARACTERISTICS, provides a description of the

structure of the pump with its main features, and lists the technical data;
3. Chapter 3, INSTALLATION AND OPERATION, provides the main items of information

needed for correct installation and explain how to start and stop the pump;
4. Chapter 4, MAINTENANCE, is a summary of the main maintenance actions, with a table

of lubrication oils and the Scheduled and Unscheduled Maintenance Cards;
5. Chapter 5, SPARE PARTS, contains a list of spare parts and accessories for the pump.

1. Preface
1.1 Purpose of this chapter
Chapter 1, PREFACE, provides the general safety rules and information on structure of the
manual and how to use it.
1.2 Safety rules
Those working on this pump must be aware of and observe at all times the general and
specific safety rules that are listed below.
Failure to observe the safety rules may result in harm being caused to personnel and/or
damage to pump components.
With a view to preventing the risks deriving from operation of the pump, suitable protection
devices must be installed, in accordance with the applicable national safety rules.
All pump installation and maintenance work is to be performed with the electric power line
not connected.
Staff responsible for installation, maintenance and operation of the pump must realize that
knowing and applying the safety precautions is an integral part of their work. In particular,
those responsible for the following:
• Putting the pump into service, or managing its operation;

• Performing different types of work on the pump, especially regarding maintenance,
control and repair of any of the pump’s components before it is switched on, during
operation, or even after it is switched off;
must read the documentation carefully so as to be aware of the potential dangers

that they may encounter in the course of their work, both as regards operation and
correct use of the safety devices.
When installing or replacing a part, take great care. Pay special attention to the three-phase
motor, where an inversion of polarity causes inversion of the direction of rotation of the
pump with consequent possibilities of mechanical damage.
Further safety rules will be found in the chapters on specific operations.

1.3 How to use this manual
This section details some of the steps taken in the preparation of this manual.
The definitions below refer to all the CAUTIONS, WARNINGS and NOTES given throughout
the manual.
CAUTION: Operating procedures, technical information and precautions which, if not

respected and/or implemented correctly may cause damage to the pump.
WARNING: Operating procedures, technical information and precautions which, if not

respected and/or implemented correctly may cause bodily harm to operators.
NOTE: Operating procedures, technical information and precautions that must be

underlined.
Figure 1-1 Product

identification plate

2. Description and characteristics
CHAPTER 2, DESCRIPTION AND CHARACTERISTICS, describes the constituent parts of the

pumps, illustrating their main features and listing the technical data.
2.2 Technical description
The VACSOUND ECO D12, D18 and D28 pumps are twin-stage, rotary, vane pumps with an
oil-bath seal, driven by a single-phase or three-phase electric motor.
These high vacuum pumps are suitable for pumping of neutral gases and CFC, HCFC and
HFC steams. The main features are:
• all parts in direct contact with the pumped fluid are free of copper alloys;
• all materials are carefully selected to provide longer life;
• a high capacity gas ballast device allows condensable vapours to be pumped;
• all parts are fully replaceable due to the close machining tolerances and centering
obtained by using reference pins;
• with its design features and low number of gaskets, the pump requires minimal
maintenance; disassembly and reassembly are extremely fast.
The pump works with forced lubrication, provided by an auxiliary gear-pump driven by the
rotor of the vacuum pump itself. This ensures proper lubrication even when pressures are
close to atmospheric.
The entire functional block (chambers, rotors, sides, valves etc.) is immersed in the oil
contained in the casing. The oil guarantees perfect sealing of the discharge valves, enters
the pump to ensure lubrication and sealing of the parts inside, facilitates heat dissipation
and reduces pump noise.
The pump is equipped with a special anti-suckback device which automatically isolates the
vacuum system when the pump stops. This avoids rises in pressure or oil flow in the
vacuum system while air is allowed back into the stator chambers.
The air entering the pump after the anti-suckback device has closed prevents the oil in the
casing from filling the stator chambers.
The inner seals are achieved by the lubricating oil, thanks to the close machining tolerances.
There is only one oil seal on the rotor shaft, the one preventing oil from seeping out of the
pump. This seal acts on a bushing fitted onto the shaft. Simple replaceable of this seal
grants the rotor a practically unlimited life (pumps D18, D28). On the D12 pump, this seal
acts on a surface-hardened area of the shaft guaranteeing long rotor life.
The vacuum pumps are connected directly to the electric motor through a flexible coupling,
so that motion is transmitted even in case of poor alignment.
A fan fitted on the joint and housed in the pump support produces a forced air flow over the
finned surfaces of the casing to avoid oil overheating.

2.3 Lubrication
The pump’s lubricating system is force-feed type. Oil circulation is obtained by means of a
gear pump connected to the rotor shaft. The oil is sucked through a gauze filter to prevent
any foreign bodies from entering the pump.
Shunt-mounted on the delivery line is a hydraulic piston which, besides actuating the anti-
suckback device (see section 2.6), also regulates pressure by discharging excess oil flow
directly into the tank. The required flow of oil under pressure passes through ducts that are
drilled in the walls of the pump and lubricates the bearings and the inside parts.
The bearing on the motor side, is lubricated by oil sucked in through two orifices which
communicate with the casing.
2.4 Vacuum seals
A special feature of this pump is the low number of gaskets that are used.
Careful surface finish of the various parts of the pump means that vacuum sealing of the
functional block is ensured by the film of oil in the metal-metal contact of the surfaces.
Sealing of the rotor shaft is guaranteed by a rotating gasket with dust-guard lip. The suction
flange and duct are sealed by means of OR gaskets.
2.5 Gas ballast valve
When the pump sucks in vapours, these condense during compression and mix with the oil,
forming an emulsion (an aqueous vapour, for example) or a solution (organic solvent
vapours, for example).
A number of problems arise from this, such as the impossibility of obtaining high vacuums,
the alteration of the properties of the oil, the danger of incrustations forming on parts of the
pump.
To avoid this, during compression at the second stage, atmospheric air is let into the pump
through an adjustable valve, or “gas ballast valve”, located at the top of the pump.
In this way, the discharge valve of the second stage opens through the effect of the
atmospheric air before the partial pressure of the vapour reaches saturation point, thus
preventing condensation from occurring. The vapours are expelled mixed with air.
2.6 Anti-suckback device
The pump is equipped with a special anti-suckback device to avoid air pressure rises and/or
oil backflow towards the evacuated vessel when the pump is switched off. This device has a
shutter which automatically closes the suction duct.
In this way the pump and vacuum system are completely isolated from each other and air
can enter the pump without any risk for the vacuum produced in the system.
The device includes some special features, namely:
• drive obtained avoiding any form of contamination of the suction duct by fluids (oil
and/or air) used to command the shutter. Thanks to this, when the pump is started
again, the pumpdown to vacuum conditions is extremely fast as these contaminants are
not present and no degassing is therefore required;
• suction flange maintained closed even when the pump is idle, so that pollutants cannot
enter from the environment and no oil can overflow from the pump.

2.7 Technical data
Table 2-1 lists the main technical data of the VACSOUND ECO D12, D18 and D28 pumps.
PROPERTY UNIT D12 D18 D28
Nominal flow 50 Hz m3/h 14,2 20,5 30,2

3
Effective flow 50 Hz (*) m /h 11,4 17,4 26
Nominal flow 60 Hz l/min 290 420 610
Nominal flow 60 Hz cfm 10,2 14,8 21,5

-3 -3
Final vacuum (*) mbar 10 10 10-3
Final vacuum with gas ballast (*) mbar 5.10-2 5.10-2 5.10-2
Tolerated water vapor pressure mbar 20 30 30
Max. water vapor pumped g/h 160 350 550
Min./max. oil capacity l 0,25/0,6 0,5/1 0,5/1
Electric motor 50 Hz (1ph/3ph) kW 0,45/0,55 0,75/0,90 0,75/0,90
Electric motor 50/60 Hz (1ph/3ph) kW 0,37/0,45 0,75/0,90 0,75/0,90
Rotation speed 50 Hz rpm 1500 1500 1500
Rotation speed 60 Hz rpm 1800 1800 1800
Noise level at final vacuum at 1 m. dB(A) 52 52 52
Operating temperature (**) °C (°F) 45 (113) 45 (113) 45 (113)
Weight with 50 Hz, 1ph motor (3ph) kg 22,8 36,2 36,2
Weight with 50/60 Hz, 1ph motor (3ph) kg 18,5 29,2 29,2
Dimensions (cf. also next Table):
Length, 1ph (3ph) mm 471 (450) 540 (510) 540 (510)
Width mm 134 164 164
Height mm 212 242 242
DN 25KF 25KF 25KF

Suction and exhaust flanges
PN16 PN16 PN16
Table 2-1 Technical Data
(*)According to PNEUROP standards 6602

(**)At final vacuum (room temperature 20°C)

Legend (cf. figure 2-1)
1. Electric motor
2. Rubber foot
3. Screw
4. Screw
5. Screw
7. Spacer
8. Motor support
9. Handle
10. Screw
11. Right sideplate
12. Board
14. Screw
15. Support plate
16. Cylindrical pin
17. Screw
18. Rubber crown
19. Half-joint (motor side) with fan
20. Half-joint (pump side)
21. Oil-seal ring
22. Special screw
23. OR gasket
24. Gas Ballast Valve knob
25. Half-plate
26. Suction sieve
27. OR gasket
28. Suction flange
29. Anti-suckback shutter
30. Piston
31. OR gasket
32. Casing gasket
33. Inner sideplate
34. Pump support
35. Anti-wear bushing
36. OR gasket
37. Tongue
38. First stage vane
39. First stage rotor
40. Spring
41. Tongue
42. Second stage vane
43. Second stage rotor
44. Tie-rod
45. OR gasket
46. Bracket
47. Screw
49. Valve cover plate
50. Valve spring
51. Valve gasket
52. First stage stator
53. Partition wall
56. Gas Ballast Valve shutter
57. Gas Ballast Valve spring
58. Second stage stator
59. Oil pump shaft
60. Special screw
61. End sideplate
62. Tongue
63. Washer
64. Nut
69. Oil pump gears
70. Oil pump cover
71. Screw
73. Plate
74. Filter
75. Casing
76. Exhaust flange
77. OR gasket
78. Oil fill plug
79. Oil drain plug
80. Oil drain plug gasket
81. Left sideplate
83. Spring
84. Filter
85. Flange
86. Sight glass
87. OR gasket
99. Special screw
100. Piston
101. Arm
102. Spring
103. OR gasket
104. OR gasket
105. Sleeve
106. Spring
107. Ring
108. Arm
109. Insert
110. Special washer
111. Screw
Figure 2-1 View of the pump

2.7.1 Dimensions
REFER TO FIGURE 2-2

PUMP A B C D H L L M N P R W
(1ph) (3ph)
mm 30 30 35 3 212 471 450 244,5 104 105 205 134
D12
inch 1.2 1.2 1.4 0.12 8.4 18.5 17.7 9.63 4.09 4.2 8.1 5.3
mm 40 40 40 6 242 540 510 261 130 100 230 164
D18
inch 1.6 1.6 1.6 0.24 9.5 21.3 20.0 10.2 5.12 3.9 9.1 6.5
mm 40 40 40 6 242 540 510 261 130 100 230 164
D28
inch 1.6 1.6 1.6 0.24 9.5 21.3 20.0 10.2 5.12 3.9 9.1 6.5
Figure 2-2: Pump dimensions
Figura 2-3: Typical Performance Curves

3. Installation and operation
Chapter 3, INSTALLATION AND OPERATION, provides the main information required for
proper installation and the procedures for starting and stopping the pumps.
3.2 Safety rules
• Always carry the pump by means of the handles provided.

• The pump must be set in position taking the utmost care in order to avoid accidental
falls.
WARNING: In case of a need to handle the pump after a period of operation, it must be
left to cool first as the external surface temperature may be in excess of 60 °C.
3.3 Transport and installation
The pumps are shipped to the customer inside cardboard boxes. Total weight of the pack,
including the pump, is 40 kg [daN]. The case must be handled with care, using appropriate
lifting equipment.
CAUTION: When moving the case, ensure that it is securely bound to the lifting equipment
and that the equipment is strong enough to support the weight.
The pump’s working environment is a traditional industrial environment. Naturally sites with
corrosive vapors or excessive heat are best avoided. Room temperature should ideally be
between 12 °C and 45 °C. If the temperature is not inside this range, consult GALILEO TP
technical service for the changes required. Setting the pump in position should be
performed as follows:
• Pump laid on the ground. There are no special instructions for this type of installation,
except that the floor should be as flat as possible and suited to bear the weight of the
pump (it should ideally be a concrete floor) and of any accessories mounted on it. Verify
that the pump is stable on its base plate. It should not be necessary to anchor it to the
floor with bolts and screws; also vibrations to and from the pump are greatly reduced by
the use of rubber feet.
• Pump off the ground. In this case, the user must design a suitable support structure,
remembering the following points:
the plane supporting the pump must be perfectly horizontal;
the structure should be rigid;
apply the safety precautions in force.
Note also that the pump should be attached to the supporting structure after replacing
the rubber feet with special anti-vibration feet, which should be screwed to the pump
base and to the supporting plane.
After taking the pump out of its packing case, you are advised to make the following
checks:
a. Ensure that the pump has not suffered any damage during shipping.
b. Check that the guards are mounted correctly (side plates, refs. 11 and 81 in fig. 2-1)
and that there are no uncovered or loose parts.
c. Examine the power cord carefully and check that the insulation has not been damaged.

3.4 Preliminary operations
Before starting the pump, fill up with lubricating oil as the pumps are delivered empty.
NOTE: A tin of oil is included in the packing.
For details on how to fill up, see Scheduled Maintenance Card 01 (Section 4.5).
CAUTION: Oil must be poured into the casing through the special threaded plughole and
NOT through the suction line.
WARNING: Take out the protective caps on the suction and exhaust flanges before doing
anything else. In the event of an accidental start-up, the air inside the pump could throw
the caps against the operator.
3.5 Electrical connections
CAUTION: Check that your electrical mains voltage corresponds to that indicated on the
motor’s plate.
3.5.1 Models with single-phase motors
The pump is supplied with a power cable (twin-pole + earth) 2 m long, complete with plug.
The motor has a bipolar switch. Direction of rotation of the motor needs not to be checked
on these models.
The motor includes a thermal relay for protection against current overloads. If the motor is
switched off by this relay, it may be started again by re-energizing the relay externally after
removing the cause of the overload.
NOTE: If fuses are installed on the power line, they must have a rating of 10 A.
3.5.2 Models with three-phase motors
To connect the motor to the three-phase mains, follow the wiring diagram on the motor
plate or on the inside of the terminal strip.
Install a multipolar omnipole switch on the power line, with contact spacing of at least 3
mm.. A magneto-thermal switch must be installed downstream of this switch, tripping at
130-140 % of the nominal current.
CAUTION: It is recommended to connect the pump to the power supply through a

dedicated switch on the main electrical panel of the installation, or in proximity of the power
supply connection point.
Before starting the pump, give a short activation to the power switch, in order to check that
the motor turns in the direction indicated by the arrow on the motor body. Should it rotate
in the opposite direction, invert the connection of any two phases on the motor terminals.

3.6 Connections on suction and exhaust sides
Remove the protective caps from both flanges. Connect the system to be evacuated to the
suction flange, using a centering ring with OR and a locking collar.
NOTE: For guaranteed reliable sealing, use an OR gasket in Perbunan or Viton.
The suction duct is equipped with a sieve filter preventing solid particles from entering and
damaging the pump.
NOTE: When the gases to be sucked out contain dust, it is advisable to insert a dust filter
before the suction flange.
NOTE: When the gases to be sucked out contain large quantities of vapor, it is advisable to
include a condensate separator before the suction flange.
To make best use of the pump’s capacity, use only short, straight piping, with a diameter
not less than that of the suction inlet.
NOTE: If rigid piping is used, it is good practice to use a flexible joint in order to avoid
undue forcing of the connection on the pump.
The exhaust duct must be connected to a pipe that will take away the sucked out gases.
NOTE: Application of an oil trap filter is necessary to avoid pollution of the surrounding
atmosphere by the oil present in the exhaust duct during pump operation.
CAUTION: Never block the pump exhaust line. This would cause overpressure in the casing
with the risk of breaking the glass window of the level indicator and/or expelling the oil seal
gasket.
3.7 Starting and running the pump
Before being put into service, in order to reach maximum vacuum, the pump must be left
running for about an hour with the gas ballast valve open and the aspiration line closed.
This will eliminate any humidity from the oil.
WARNING: The vacuum pump can’t be used to pump the atmospheric pressure more than
for 15 minutes; in this case can occur the seizure of some internal parts, for the not correct
lubrication of the rotors.
WARNING: The pump is designed for operation with air, oil vapors Ester based and R134a
vapors. It is absolutely forbidden to use potentially explosive or flammable substances.
NOTE: If the pump is started with cold oil, initially more than normal noise will be heard;
this will last for a few minutes only until the oil reaches its working temperature.
There are no special instructions for normal operation of the pump, which is delivered to
you after completion of a running-in cycle in the factory. The maintenance operations for a
pump in working condition may be found on the Scheduled Maintenance Cards (Section
4.5).
If the pump is sucking in environments with liquids or vapors, it is important to leave it to

run with the gas ballast open so as to avoid condensation of the vapors and contamination
of the lubricating oil as a result. When there is no danger of the oil being contaminated, the
gas ballast valve should be closed to reduce the pump’s power absorption.

The gas ballast valve will prove useful in the cold season when, due to the lower room
temperatures, it takes longer for the pump to reach rated temperature when switched on.
Compression of the air forced in by the gas ballast valve develops heat, which in turn
increases temperature of the oil faster.
NOTE: If gases without vapors are sucked in, you are advised to open the gas ballast
device from time to time in order to eliminate the traces of humidity they contain.
NOTE: For repetitive work cycles, with brief time intervals in between, it is better not to
stop the pump.
3.8 Stopping the pump
There are no special procedures for switching the pump off; it needs only to be
disconnected from the electric power by means of the bipolar switch (version with single-
phase motor - see section 3.5.1) or of the multipolar switch (version with three-phase
motor - see section 3.5.2).
When the pump is stopped, the anti-suckback device makes it possible to maintain vacuum
in the vessel connected on the suction side of the pumps.
If the pump is expected to be stopped for a lengthy period, or in any case if it has sucked in
large amounts of vapors, it is good practice to run it with the gas ballast open and the
suction line closed for a few minutes before switching off in order to limit the risk of
corrosion or incrustations due to pollution of the oil by condensed vapors.

4. Maintenance
Chapter 4, MAINTENANCE, provides a rundown of the main maintenance operations, and

contains a lubrication table; also included are the Scheduled Maintenance and Unscheduled
Maintenance cards.
4.2 Safety rules
Personnel responsible for pump operation and maintenance must be well-trained and must
be aware of the accident prevention rules.
The accident prevention precautions contained in this section must be respected at all times
during operation and maintenance of the pump to avoid damage to operators and to the
pump.
These precautions are provided in the form of WARNING and CAUTION notes.
WARNING: Operating procedures, technical information and precautions which, if not

respected and/or implemented correctly may cause bodily harm to operators.
CAUTION: Operating procedures, technical information and precautions which, if not

respected and/or implemented correctly may cause damage to the pump.
4.2.1 Warning notes
a. Death may result from contact with high voltages. Always take extreme care and
observe the accident prevention regulations in force.
b. Always disconnect the power supply to the pump before commencing maintenance work.
Place a special warning signs over the power supply breaker switch: MACHINE
UNDERGOING MAINTENANCE - DO NOT POWER ON.
c. If you are performing maintenance after the pump has been operating for a considerable
time, allow sufficient time for it to cool as the external surface temperature may be in
excess of 60 °C.
d. Failure to provide the pump with an earth connection may cause serious damage to
operators. Always ensure that there is an earth connection and that it complies with the
standards.
e. When cleaning the pump and its component parts, avoid the use of flammable or toxic
solvents, such as benzine, benzene, ether or alcohol. The recommendation is to use a
soap and water solution, preferably in ultrasound washing machines, taking care to dry
all the cleaned parts at temperatures under 100 °C in order to eliminate residual
moisture.
f. Prolonged overloads or breakdowns may cause the electric motor to overheat, and to
release noxious smoke; remove the power immediately as a precaution and do not
approach the pump at least until you have provided ventilation to drive out the smoke.
Take care not to breathe in the fumes remaining inside the pump in the course of repair
work.
g. In case of fire, do not throw water on the pump. Switch the power off and use CO2
extinguishers.
h. Carefully inspect the flanges to ensure that there are no dust, oil, dirt or defects of the
mating surfaces, before making the required connections.
i. Ensure that all joints and couplings are locked correctly before starting the pump again
after repair work.

j. Do not wear any objects that may become entangled in the mechanisms and/or act as
conductors (chains, bracelets, etc.).
k. Ensure that the tools to be used are in perfect working condition and have insulating
grips, where necessary. Check that the insulating material of the cables and that the
conductors of the test equipment do not show any signs of damage.
l. Do not replace the oil immediately after stopping the machine as the oil may still be at
high temperature.
m. m. Perform repairs in clean and, where possible, dust-free areas. Protect all the
clearances of connection points with suitable plastic caps and cover the machined
surface areas of all parts stripped down up until they are put back on the pump again.
n. n. Do not start the pump if the protective sideplates (refs. 11 and 81 of fig. 2-1) are not
properly in place.
4.2.2 Caution notes
a. Before putting the pump back into operation after a breakdown, inspect it and check
carefully for any other signs of damage.
b. Use only tools that are in perfect working order and specially designed for the job; use
of inappropriate or ineffective tools may cause serious damage.
c. Perform repairs in clean and, where possible, dust-free areas. Protect all the clearances
of connection points with suitable plastic caps and cover the machined surface areas of
all parts stripped down up until they are put back on the pump again.
d. Always check the lubricant and that it is properly distributed through the pump;
inadequate lubrication may damage the pump seriously.
e. Give the parts some form of marking as you strip them down to ensure that you
reassemble them again in the proper order.
f. Check that there are no scratches or grooves on the machined shafts, in their seats
inside the pump or on machine-ground surfaces. Slight scratches and abrasions may be
eliminated with very fine emery paper or by a little light grinding.
g. Before putting a group together, always spread a little oil over inner parts and mating
surfaces. Replace all seals with original spare parts before reassembling components.
4.3 Maintenance actions
Maintenance may be seen as the totality of all scheduled and unscheduled maintenance
work.
Maintenance includes:
a. Scheduled maintenance: maintaining the nominal state of operation;

b. Unscheduled maintenance: restoring the nominal state of operation.
NOTE: The frequency with which repairs are performed depends on the process and
presence of substances that shorten pump life (dust, abrasives, solvents, water, chemically
aggressive substances).
The pump must be cleaned at regular intervals of time. Use only the strictly necessary
amount of lubricant; an excess of lubricating oil, like when there is none, may sometimes
compromise proper operation of the pump. Only the recommended lubricants, or lubricating
oils with similar characteristics and known and experimented quality, should be used.
Oil changes must be made with the oil at a sufficiently high temperature, after leaving the
pump to cool for a few minutes following operation. The drain and filler plugs must not be
left open any longer than is strictly necessary.

When performing maintenance, look out for all signals that may precede a breakdown, in
particular:
• traces of corrosion;
• oil leaks;
• slack joints or couplings.
Maintenance technicians must:
• be aware of all applicable national directives concerning accident prevention during work
on motor-driven pumps and should know how to apply them;
• have read and understood all the sections on “Safety Rules ";
• be familiar with the essential design features and operation of the pump;
• know how to use and consult the pump documentation;
• be concerned about proper operation of the pump;
• make a note of any irregularities in operation of the pump and take the necessary
action, where appropriate.
Use original spare parts wherever possible and repair a broken part as best as possible on
site or send it back to the manufacturer for repairs.
For all problems arising, or to order spare parts, refer to our service department.
GALILEO TP PROCESS EQUIPMENT S.r.l.

Via del Pantano 73 - 50018 Scandicci (Firenze) Italia
Tel. (+39) 055 7221358 – Fax (+39) 055 7222225
Website www.galileotp.com – mail info@galileotp.com
4.4 Lubricants
It will be readily understood how important adequate lubrication is to high technology

pumps like the GALILEO vacuum pumps. Correct use of appropriate lubricants makes a
significant contribution to achieving best performance and warding off defects.
When handling lubricants, the following sanitary protection measures should be observed at
all times:
• Avoid prolonged, excessive or repeated contact of the skin with products for lubrication,
and also avoid directly inhaling the fumes or vapors of such products.
• Protect the skin by wearing appropriate clothes and equipment (e.g. special suits,
glasses or, where permitted by the safety regulations, gloves) or by applying a special
protective product.
• Clean the skin carefully after contact with the lubricants by washing freely with water
and soap.
• Apply a skin cream after washing.
• Take off and change clothes or shoes on which oil has been spilled.
• Never put rags dripping with oil into the pockets of your clothes.
When disposing of waste lubricants, observe the following environment protection

regulations:
• The lubricants risk contaminating the water and the ground! Therefore never pour
lubricating products on to the ground, into water or in the sewage system. All violations
of these rules are liable to persecution as provided for by law. When using lubricants
always keep an oil can nearby.
• Take care in draining off waste oils. In disposal of these products respect all regulations
in force concerning waste oil disposal.

The recommended lubricating oil depends on the type and conditions of use.
ROTOIL ES-68: compatible with HFC steams.
ROTOIL SH-200: mineral oil of standard viscosity, for pumping of chemically inert vapors
and gases (SAE 30).
PROPERTY UNIT ROTOIL SH-200

Specific weight (15°C) g/cm3 0.86
Kinematic viscosity 40°C Cst 55
100°C cSt 8.1
Index of viscosity 90
Vapour pressure 25°C Pa 1x10-3
Fire point °C 244
Pour point °C - 15
Table 4-1: Properties of ROTOIL oils
It is absolutely necessary to continue using the lubricants initially used to fill the tank. If
this is not possible for organizational or business reasons, use only products with the same
characteristics as the previous oils.
Only use of lubricants of suitable quality will guarantee safe operation of the pumps.
CAUTION: It is forbidden to mix different lubricants, because their composition and the
related additives are not the same.
If you expect to have to use other lubricants, first find out if the two products are
compatible. In cases of doubt, the lubricant used up to that time must be flushed out by
way of a pump flushing procedure.
CAUTION: To avoid the risk of contaminating the oil, absolute cleanliness of the pump and
surrounding area must be ensured during the lubrication procedures.
4.5 Scheduled maintenance cards
N° FREQUENCY PUMP STATUS (*) OPERATION

1 MONTHLY R OIL LEVEL CHECKING
2 TWICE YEARLY S CLEANING THE SUCTION FILTER
(*) R = Running S = Stopped
Table 4-2 List of Scheduled Maintenance Cards
NOTE: When the pump is equipped with a condensation separator on the suction side these
items must also be maintained, by following the Manufacturer’s instructions.
NOTE: The numbers used in the drawings on the Scheduled Maintenance Cards are those
used in Figure 2-1 View of the pump.

Card No
Scheduled maintenance 1
Pump type: VACSOUND ECO D12, D18, D28
Frequency: Monthly Time: 5 min. Machine status: R
Type of action: Lubrication Item: Lubricating oil
N° Description Time Equipment Materials

• Cleaning rags
1 Check the oil level and top up if necessary. 5 min. Oil
• Liquid detergent
WARNING: Machine powered: take care on account of moving parts and high voltages.
WARNING: If you have to perform maintenance on the pump after a considerable time in
operation, leave it to cool as temperature of the outer surface may be in excess of 60°C.
1. Check the oil level through the sight glass: there are two clearly visible arrows indicating
maximum and minimum levels for proper pump operation.
NOTE: The amount of oil consumed depends on the type of work, particularly on the
volume being evacuated and on the frequency of the vacuum cycles.
2. If necessary, open the pump filling plug on the top plane of the pump and add oil.
NOTE: Before starting the procedure, check that the quality and type of oil used
corresponds to the indications of Table 4-1 of this manual.
Take great care to avoid oily residues or dust from entering the pump and jeopardizing
proper operation.
3. Close the fill plug and, using cotton or other suitable material rags, clean thoroughly the
outer surface of the top plane of the pump.
WARNING: Never mix lubricants of different brands or quality. To change from one oil
to another, the pump must be stripped down and all parts washed carefully, taking care
to eliminate oil residues.
4. Open the gas ballast valve to purify the oil.

Card No
Scheduled maintenance 2
Frequency: Twice yearly Time: 10 min. Machine status: S
Type of action: Cleaning Item: Suction filter
N° Description Time Equipment Materials

1 Clean the suction filter 10 min. Compressed air gun
WARNING: Machine safety: disconnect all power lines. Hang the card “MACHINE
UNDERGOING MAINTENANCE - DO NOT POWER ON” from the main breaker switch. When
finished, remove the safety warning.
operation, leave it to cool as temperature of the outer surface may be in excess of 60 °C.
1. Remove the filter (26) from the suction flange (28).
2. Clean the filter using an aqueous solution and dry with hot air.
3. Put the filter back in place.
CAUTION: The filter element is designed to prevent solid particles in the air from
entering the inside of the pump and if it is not working properly, serious damage could
be caused the pump’s inner parts. In such cases, it may be worthwhile installing a large
surface area filter in the pump's suction line to improve effectiveness and reduce
maintenance frequency. If the pump sucks in gases and vapors that contain large
quantities of solid particles, the filter must be checked and cleaned more often than
indicated here.

4.6 Unscheduled maintenance cards
N° SUBJECT FREQUENCY
101 General warnings
102 Changing the oil Whenever necessary
103 Disassembly of oil level indicator When damaged
104 Disassembly of anti-suckback device shutter When damaged
105 Disassembly of electric motor and joint When damaged
106 Disassembly of discharge valve When damaged
107 Disassembly of oil pump When damaged
108 Disassembly of anti-suckback valve When damaged
109 Disassembly of pump body When damaged
110 Replacement of oil seal ring/wear bushing When damaged
111 Disassembly of functional block rotors When damaged
Table 4-3 List of Unscheduled Maintenance Cards
NOTE: The numbers used in the drawings on the Unscheduled Maintenance Cards are those
used in Figure 2-1 View of the pump.

Card No.
Unscheduled Maintenance 101
GENERAL WARNINGS
1. Pump disassembly and reassembly require some basic operations and use of tools found
in most workshops.
NOTE: The pump’s component parts are modular and therefore fully interchangeable.
Whenever parts have to replaced, please specify in the order:
• Pump type;
• Serial number (marked on pump identification plate);
• Reference number on the detailed diagram, name and part number as indicated on
the spare parts and accessories list (section 5.2 of this manual).
To simplify maintenance work, two kits have been devised. The Gaskets Kit, containing
all the gaskets recommended for substitution after disassembly of the pump and the
most commonly used removable parts. You are advised to keep this kit in a dry room,
away from heat and light (sun and UV rays) in order to prevent hardening of the
elastomer parts.
The Maintenance Kit, including, as well as the Gaskets Kit, the 1st and 2nd stage vanes
and other parts that it may be necessary to replace when overhauling the pump
completely. These parts have a life of approx. two years under conditions of normal
operation.
KIT D12 D18 D28 CODE

GASKETS KIT X 5.001.1.053
GENERAL MAINTENANCE KIT X 5.001.1.050
GENERAL MAINTENANCE KIT X X 2.002.1.310
Kits Table
2. Before reassembling the pump, all parts must be cleaned thoroughly with a soap and
water solution and rinsed with demineralized water.
CAUTION: Particular care must be taken in cleaning the lubrication ducts and oil
passage nozzles, which must always be kept free of impurities.
CAUTION: Take care that the soap and water solution does not remain in the various
cavities and recesses of the pump, in the blind holes in particular.
3. Then dry the parts, by heating where possible but without using compressed air (it
generally contains polluting substances), taking care not to exceed a temperature of 80
°C.
4. The sequence of reassembly is the inverse of the disassembly operation. Take the same
precautions:
• Spread some clean oil of the same type as used to lubricate the pump over the
different parts, in particular the inner lip of the oil seal, the bearings and vanes.
• If the oil seal has no inner dust-block lip, 2/3 fill the area between the two lips with
grease.
CAUTION: Do not allow the grease into the area of the circumferential spring.
• Lock without forcing the nuts on the four tie-rods (44) connecting the parts of the
pump block. Before locking, check that all parts are touching as required.
• Before putting the springs and shutters of the discharge valves back in, pour a little
oil into the stators through the holes in the valves.

CAUTION: Before hooking the recall spring to the anti-suckback command bar,
make sure you have put the bar all the way into the sleeve of the rotary feedthrough
to avoid bending the tapered part of the bar.
NOTE: On D12 pump with pumps with single-phase motor, fit the joint on the motor
shaft after careful removal of grease from the surfaces and application of LOCTITE
242.

Card No.
Unscheduled maintenance 102
Frequency: As required Time: 30 min. Machine status: S
Type of action: Changing oil Item: Lubricant
Action area
Materials required Equipment required

• Fixed wrench for exhaust top.
• Tank to collect oil.
Oil ROTOIL SH-200 (1 liter)
• Cotton (or other suitable material) rags for cleaning.
• Soap and water solution for cleaning.
WARNING: Do not change the oil immediately after stopping the machine as the oil
temperature may still be high.
NOTE: The oil has to be replaced:
• when it has become particularly dirty due to the

presence of contaminants in the environments being
evacuated;
• when the degree of vacuum achieved by the pump is
no longer satisfactory, even after running for one hour
with the gas ballast device open.
1.

1. Place a tank for the waste oil under the oil drain plug (79).
NOTE: You are advised to empty the pump before it cools down completely so that the
oil flows out more easily.
NOTE: The pump contains up to 1 litre of oil - make sure the tank you use for the waste
oil can hold this amount.
2. Open the oil drain plug slowly; let the oil flow out by opening the fill plug (78) located at
the top of the pump. In the meantime, clean the inside of the drain plug (magnetic
plug).
3. After closing the drainage hole with its plug, make the pump perform a number of turns,
giving it a brief current pulse, so as to let residual oil in the pump chambers flow out.
Then drain off the residual oil again.
4. After all the oil has been drained, close the drain plug tight; take the tank of waste oil
away and clean thoroughly, using rags of cotton or other suitable material to dry.
5. Clean thoroughly the pourer lip of the new oil tin; pour the oil slowly into the pump
through the filler plug.
WARNING: Monitor through the sight glass at the front of the pump that you are not
exceeding the maximum oil level permitted.
CAUTION: For disposal of waste oil, it is strictly necessary to respect the currently
applicable legislation on this matter.
6. To achieve a good vacuum level again, run the pump for one hour with the gas ballast
open.

Card No.
Frequency: when damaged Time: 30 min. Machine status: S
Type of action: Disassembly Item: Sight glass
action area

• OR gaskets (kit p/n 985700212001)
Mechanical tools
• Sight glass
1. Drain off the oil from the pump.
NOTE: For a description of how to drain off the oil, see

the Unscheduled Maintenance Card No. 102.
2. Unscrew the securing screws (71) and disconnect the

flange (85) from the casing.
3. Take out the OR gasket (87) and the sight glass

(86).
NOTE: When reassembling, replace the gaskets that

you have stripped down.
CAUTION: When reassembly is complete, proceed to

fill the pump with oil again following the instructions of
Unscheduled Maintenance Card No. 102.

Card No.
Type of action: Replacement Item: Anti-suckback device shutter
action area

Shutter Mechanical tools
1. Disconnect the flange (28) from the suction pipe line.
2. Unscrew the 6 securing screws (17) and remove the two half-plates (25) pressing the
suction flange (28) into its
seat.
3. Remove the flange (28) and

take out the piston (30)
with the shutter (29) of the
anti-suckback device,
freeing it by exerting force
on arm (101). Separate the
shutter (29) from the piston
rod simply by pulling.

Card No.
Type of action: Replacement Item: Electric motor and joint
action area

Electric motor Mechanical tools
1. Disconnect the motor bearing plate (8) from the support (34) by unscrewing the four
screws (4).

2. Remove the half-joint/fan (19) from the support, together with the motor (1), the
plate (8) and the plate (12) (for the D18 and D28 only).
3. Slacken the nut blocking the half-joint (19) to the motor shaft and take it out, using
leverage between the plate (8) and the back of the joint. For D12, D18, D28 and
D12 pumps, the tool kit includes an extractor (see figure in the next page) for the
half-joint (19). Tighten the three screws into their respective holes in the half-joint
until the plate is pressed against the head of the teeth of the half-joint. Lock the
central screw until the half-joint comes out of the motor shaft.
4. Unscrew the four screws (5) and separate the plate (8) from the motor (1).
5. Reassemble by proceeding in the inverse order.
Exctractor

Card No.
Frequency: when damaged Time: 1 hour Machine status: F
Type of action: Disassembly Item: Discharge valves

action area

Shutters (Gaskets kit) Mechanical tools

1. Drain off all the oil from the pump.
NOTE: For a description of how to drain off the oil, see the Unscheduled Maintenance
Card No. 102.
2. Disconnect the discharge flange from its piping.
3. Unscrew the nuts (3) and remove the pump casing (75).
4. Unscrew the securing screw (47) holding the splash guard (49) and remove it.
5. Unscrew the two screws (47) on the valve press-bracket (46) and remove the bracket
(46), the springs (50) and the shutters (51).
NOTE: When reassembling, replace all the gaskets stripped down.
CAUTION: When reassembly is complete, proceed to fill the pump with oil following the
instructions of Unscheduled Maintenance Card No. 102.

Card No.
Frequency: when damaged Time: 1 hour Machine status: S
Type of action: Disassembly Item: Oil pump
action area

Oil pump Mechanical tools
NOTE: For a description of how to drain the oil from the pump, see the Unscheduled
Maintenance Card No. 102.
3. Unscrew the nuts (3) and remove the casing from the pump (75).

4. Unscrew the three screws (71) connecting the closing plate (70) to the side and take it
out.
5. Remove the pump gear-wheels (69).
NOTE: A magnet may be used to remove the gear-wheels.
NOTE: When reassembling, replace all the gaskets you have stripped down.
CAUTION: When reassembly is complete, proceed to fill the pump with oil again
following the instructions of Unscheduled Maintenance Card No. 102.

Card No.
Type of action: Disassembly Item: Anti-suckback device
action area

OR gaskets Mechanical tools

NOTE: For a description of how to drain the oil, see the Unscheduled Maintenance Card
No. 102.
2. Disconnect the discharge flanges from their piping.
3. Unscrew the locking nuts (3) and remove the casing (75) from the pump.
4. Unscrew the securing screw (47) and remove the splash guard (49).
5. Remove the shutter from the anti-suckback device.
NOTE: For more details on how to remove the anti-suckback device, see Unscheduled
6. Unscrew the screw (102), take out the arm (101) from the rod.
7. Release the spring (106) from the rod arm (108).
8. Pull the rod (108) out of the rotary feedthrough (105) sleeve.
9. Remove the two OR gaskets (104) from the rod (108) using a screwdriver, if necessary.
Be careful not to bend the rod in doing so.
10. Unscrew the sleeve (105) and remove it from the support (34) together with its OR
gasket (103).
11. Remove the hydraulic piston (100) from its seat in the body.

Card No.
Type of action: Disassembly Item: Pump body
action area

OR gaskets Mechanical tools

NOTE: For a description of how to drain off the oil, see the Unscheduled Maintenance
Card No. 102.
3. Disconnect the electric motor (1) complete with half-joint.
NOTE: For a description of how to disassemble the electric motor, see the
4. For D18 and D28 pumps only ; unscrew the screw (111) anf remove the ring
(110).Slacken the nut locking the half-joint (20) to the shaft of the rotor (39) and
take out the half-joint. Remove the tongue (37) with it as well.
5. Unscrew the securing screw (47) and remove the valve screen (49).
6. Slacken the four nuts (64) and take out the tie-rods (44) and the complete
functional block (76), lifting it from the pump support (34) and take out the OR
gaskets (27) and (45), from the gas ballast line and suction line respectively.
WARNING: Be careful not to cut the lip of the oil seal with the sharp edges of the
shaft key seat.

Card No.
Frequency: when damaged Time: 1 hour 15 min Machine status: F
Type of action: Replacement Item: Oil seal/anti-wear bushing
Action area
Required materials Required equipment

• Oil seal
• Anti-wear bushing Mechanical tools
• OR gaskets
NOTE: For a description of how to drain

off the oil, see the Unscheduled
2. Separate the functional block from the

pump support.
NOTE: For a description of how to

separate the functional block from the
support, see the Unscheduled
3. Remove the worn out oil seal (21) from

the pump support (34) using a
screwdriver for leverage and taking care
not to scratch the seat.
4. Take the anti-wear bushing (35) off the

shaft and take out the OR Gasket (36)
(only D18, D28 pumps).
NOTE: For assembly of the new oil seal, use the special tool included in the toolkit.

5. After applying silicone grease to the external diameter of
the oil seal, engage it on the “A-A” side of the tool and
push it into its seat.
CAUTION: The flat part of the oil seal must be facing

the motor. Ensure also that the seal touches against its
seat along the entire circumference.
NOTE: It is possible to replace the oil seal without

stripping down the rotor. After taking out the worn out
seal using a screwdriver, cover the protruding part of
the rotor shaft with the special sheath included in the tool
kit (see figure above).Fit the suitably greased oil seal on
to the rotor shaft and use the tool from side B-B to push
it into its seat.
NOTE: It is possible to replace the anti-wear bushing

without stripping down the pump, using the special
extractor tool included in the tool kit (see following
figure). Engage the extractor on the protruding part of
the anti-wear bushing and after tightening the transverse
screw, pull to slip the bushing off the rotor shaft.
6. Reassemble by proceeding in the inverse

order.
NOTE: When reassembling, replace all the

gaskets stripped down.
CAUTION: When reassembly is complete,

proceed to fill the pump with oil again following
the instructions of Unscheduled Maintenance
Card No. 102.

Card No.
Type of action: Disassembly Item: Functional block rotors
Action area

• Oil seal ring
• Anti-wear bushing
• OR gaskets
• 1st stage vanes
Mechanical tools
• 2nd stage vanes
• Gas Ballast shutter
(the above items of material are included in the General
Maintenance kit)
NOTE: For a description of how to drain the oil from the pump, see the Unscheduled
2. Detach the entire functional block from the pump support.
NOTE: For a description of how to detach the functional block, see the Unscheduled
3. Disassemble the discharge valves.
NOTE: For a description of how to disassemble the discharge valves, see the

4. Detach the end plate (61) from the rest of the pump body, exerting leverage if
necessary on the reference notches between the parts. This will give you access to the
retaining valve (56) and associated spring (57) at the gas ballast inlet.
5. Disconnect the 2nd stage stator (58), remove the two vanes (42), take the 2nd stage
rotor (43) off the shaft and take out the key (41).
6. Remove the partition wall (53) from between the 1st and 2nd stages.
7. Detach the 1st stage stator (52) from the inner side (33), pressing back on the springs
(40) of the vanes (38) to avoid the vanes from touching against the sharp corners of the
body and becoming damaged.
8. Take out the 1st stage rotor (39), the vanes (38) and the springs (40).
CAUTION: After reassembly is complete, proceed to fill the pump again with oil

4.7 troubleshooting and corrective action
NOTE: If the pump breaks down or does not work well, first check thoroughly that all the
standards rules listed in the chapter INSTALLATION AND OPERATION are currently
observed. If you cannot get sufficiently low pressure, the problem may lie with the system
connected to the pump, i.e. the vacuum chamber and suction line. Even when the design
sizes are correct, the problems listed below are still fairly frequent:
a. faulty seals: check that the seals are fitted, are in good working order and are clean;
check all joints, taps, sight glasses, weld joints, etc.
b. unsuitable materials: avoid the use of rubber, plastic or even metal parts that are
porous or permeable.
c. volatile substances: as far as possible, eliminate humidity, grease, dirt, rust, solvents
(even small traces).
Symptom Probable cause Suggested remedy Card Ref.
The motor-pump coupling is Check state of the elastic joint and

1.a 105
defective replace the parts as needed
Examine the oil and change if

1.b Viscosity of the oil has increased necessary (find out why it has 102
deteriorated)
The pump does
not start (or Test the resistance to rotation, by
stops turning the joint by hand. If the
immediately) 1.c Excessive friction inside pump rotors are blocked, disassemble the 111
pump body and check state of the
parts inside
1.d Electrical protections not set Adjust the protections

Heat the oil up to a temperature of 20
Oil too viscous because of low room
1.e °C or use an oil recommended for low 102
temperature
temperatures.
The pump stops 2.a Seizure of some internal parts Proceed as at 1-C
(stalls) 2.b Oil very dirty Proceed as at 1-B
3.a Too much friction inside Proceed as at 1-C
Try changing the oil, otherwise
The pump 3.b Oil ducts clogged inside disassemble the pump and clean it 102, 111
overheats well
Change over two phase wires of the
3.c Direction of rotation inverted 111
electric power supply
Gas Ballast device broken (always Check the device to ensure the gas
4.a 111
Too much oil open) ballast is properly adjusted
drained off by Heavy duty work (high suction
4.b Check condition of the oil trap filter
the exhaust pressures or very frequent cycles)
4.c Leak in system Check the system (see “Note”)
Replace the oil seal and the anti-wear
5.a Seal on shaft defective 110
bushing
The pump is Refer to the
Identify the areas where seeping
losing oil card related
5.b Other gaskets defective occurs and check the associated to involved
gaskets item
6.a Exhaust valves damaged Inspect the valves 106
The pump is very High suction pressure, or gas Check the system and the gas ballast
6.b
noisy even at ballast device is open valve (see items 4-A and 4-B)
steady operating 6.c Elastic star of joint is damaged Check and replace if necessary
conditions A grain of the joint has become Lock the grain after application of
6.d
loose Loctite 222 (for slack threads)
When the pump The anti-suckback device is Disassemble and check the anti-
7.a 108
is stopped, the defective suckback device
suction pressure The cause of the problem is not
7.b See “Note”
rises rapidly with the pump

Sintomo Causa probabile Rimedio suggerito Rif. scheda
Check level and appearance of the oil.
Open the Gas Ballast for half an hour
8.a Not enough oil, or oil contaminated 01, 102
at least; change the oil whenever
necessary
8.b Oil ducts clogged inside Proceed as at 3-B
8.c Direction of rotation inverted Proceed as at 3-C
OR gaskets communicating with the
8.d Replace the gaskets 109
suction line defective
Exhaust valves damaged or out of
8.e Proceed as at 6-A
place
Insufficient oil pressure in the
The pump does Inspect the gears of the oil pump and
8.f lubricating circuit, preventing the 107
not produce a check that it is working
anti-suckback device from opening
sufficient
Disassemble the pump, and replace
vacuum 8.g Internal moving parts worn 111
any worn parts
Pump working with gas ballast
8.h Close the gas ballast device
device open
Disassemble the suction flange and
8.i Anti-suckback valve fails to open 104, 108
check the device
Parts of the functional block not in
Disassemble and check condition of
perfect contact because of deposits
8.j the part surfaces and that plugs have 111
of dirt or failure to put a plug on
been used
the service holes
The cause of the problem is not
8.k See “Note”
with the pump

5. Spare parts
Chapter 5, SPARE PARTS, presents a list of spare parts and accessories for the pump.
5.2 Spare parts list
DESCRIPTION D12 D18 D28 CODE Ref. No.

ELECTRIC MOTOR 100V ,200-240V, 1ph, 50Hz 1 5.033.0.006 1
100-120V ,200-230 V 1ph ,60Hz
ELECTRIC MOTOR 100V ,200-240V, 1PH, 50Hz 1 1 5.033.0.008 1
100-120V ,200-230 V 1ph, 60Hz
ELECTRIC MOTOR 200-230V, 380-415V 3ph 50Hz 1 5.033.0.007 1
200-230 V, 460V 3ph 60Hz
ELECTRIC MOTOR 200-230V, 380-415V 3ph 50 Hz 1 1 5.033.0.009 1
200-230 V, 460V 3ph 60Hz
ELECTRIC MOTOR Eex-e 230V/400V 3ph 50 Hz 1 1 5.033.0.005 1
BUFFER FOOT 4 4 4 ** 2
SCREW M6x60 UNI 5931 4 --- 3
SCREW M8x80 UNI 5931 4 4 --- 3
SCREW M6x16 UNI 5931 3 --- 4
SCREW M6x30 UNI 5931 4 4 --- 4
SCREW M6x12 UNI 5931 4 --- 5
SCREW M6x16 UNI 5931 4 4 --- 5
SPACER 1 1 100500850702 7
MOTOR SUPPORT 1 100500871892 8
MOTOR SUPPORT 1 1 100500871896 8
HANDLE 1 100501180020 9
HANDLE 1 1 100501180019 9
SCREW M4x8 UNI 5933 4 4 4 --- 10
RIGHT SIDEPLATE 1 100500440277 11
RIGHT SIDEPLATE 1 1 100501051333 11
BOARD 1 1 100501051045 12
SCREW M6x16 UNI 5933 2 4 4 --- 14
SUPPORT PLATE 1 200500500324 15
SUPPORT PLATE 1 1 200500500327 15
CYLINDRICAL PIN 12 12 12 --- 16
SCREW M5x10 UNI 5931 6 6 6 --- 17
RUBBER CROWN FOR 3PH – 1PH MOTOR 1 1 1 500501190001 18
HALF-JOINT WITH FAN FOR 1PH - 3PH MOTOR 1 200500970017 19
HALF-JOINT WITH FAN FOR 1PH - 3PH MOTORS 1 1 200500970014 19
HALF-JOINT FOR 1PH - 3PH MOTOR 1 100501680017 20
HALF-JOINT FOR 1PH - 3PH MOTOR 1 1 100501680010 20
OIL SEAL RING 1 * 21
OIL SEAL RING 1 1 * 21
SPECIAL SCREW 1 1 1 100500880349 22
OR GASKET 1 1 1 * 23
GAS BALLAST KNOB 1 1 1 100500500027 24
HALF-PLATE 2 100501051329 25
HALF-PLATE 2 2 100501051331 25
SUCTION SIEVE 1 1 1 200500430054 26
OR GASKET 1 * 27
OR GASKET 1 1 * 27
SUCTION FLANGE 1 100500321463 28
SUCTION FLANGE 1 1 100500321080 28
ANTI-SUCKBACK SHUTTER 1 1 1 * 29
PISTON 1 1 1 100500080059 30
OR GASKET 1 * 31
OR GASKET 1 1 * 31
CASING GASKET 1 * 32
CASING GASKET 1 1 * 32
INNER SIDEPLATE 1 100500440154 33

INNER SIDEPLATE 1 1 5.001.1.060 33
PUMP SUPPORT 1 200500500261 34
PUMP SUPPORT 1 1 200500500287 34
ANTI-WEAR BUSHING 1 1 --- 35
OR GASKET 1 1 * 36
KEY 4x4x16 UNI 6604 1 --- 37
KEY 4x4x20 UNI 6604 1 1 --- 37
1st STAGE VANE 2 ** 38
1st STAGE VANE 2 2 ** 38
1st STAGE ROTOR 1 200500580040 39
1st STAGE ROTOR 1 1 200500580031 39
SPRING 2 2 2 * 40
KEY 4x4x14 UNI 6604 1 --- 41
KEY 5x5x16 UNI 6604 1 1 --- 41
2nd STAGE VANE 2 ** 42
2nd STAGE VANE 2 2 ** 42
2nd STAGE ROTOR 1 100500260028 43
2nd STAGE ROTOR 1 1 100500260027 43
TIE-ROD 4 100500540252 44
TIE-ROD 4 4 100500540268 44
OR GASKET 1 * 45
OR GASKET 1 1 * 45
BRACKET 1 100500141528 46
BRACKET 1 1 100500141487 46
SCREW M4x8 UNI 5931 3 --- 47
SCREW M5x8 UNI 5931 3 3 --- 47
VALVE COVER 1 100500110198 49
VALVE COVER 1 1 100501051184 49
VALVE SPRING 3 3 3 * 50
VALVE GASKET 3 3 3 * 51
1st STAGE STATOR 1 100500240069 52
1st STAGE STATOR 1 100500240072 52
1st STAGE STATOR 1 100500240073 52
PARTITION WALL 1 100500440155 53
PARTITION WALL 1 1 200501250039 53
GAS BALLAST SHUTTER 1 1 1 * 56
GAS BALLAST SPRING 1 1 1 * 57
2nd STAGE STATOR 1 100500240071 58
2nd STAGE STATOR 1 1 100500240056 58
OIL PUMP SHAFT 1 *** 59
OIL PUMP SHAFT 1 1 *** 59
SPECIAL SCREW 1 1 1 *** 60
END SIDEPLATE 1 200501250076 61
END SIDEPLATE 1 1 200501250074 61
KEY 2x2x6 UNI 6604 1 1 1 --- 62
WASHER 6,4x11 UNI 6592 4 4 4 --- 63
NUT M6 UNI 5588 4 4 4 --- 64
OIL PUMP GEARS 1 1 1 *** 69
OIL PUMP COVER 1 1 1 100500020127 70
SCREW M4x8 UNI 5931 8 11 11 --- 71
PLATE 1 1 100500300415 73
FILTER 1 1 ** 74
CASING 1 200500440164 75
CASING 1 1 200500440145 75
EXHAUST FLANGE 1 1 1 100500321155 76
OIL FILL PLUG 1 1 1 500500740128 78
OIL DRAIN PLUG 1 1 1 5.008.5.035 79
OIL DRAIN PLUG WASHER 1 1 1 1.021.0.010 80
LEFT SIDEPLATE 1 100500440276 81
LEFT SIDEPLATE 1 1 100501051332 81
SPRING 1 100500060207 83
FILTER 1 ** 84
FLANGE 1 1 1 100501280036 85
SIGHT GLASS 1 1 1 5.001.1.061 86
SPECIAL SCREW 1 1 1 100500880368 99

PISTON 1 100500080055 100
PISTON 1 1 100500080058 100
LEVER 1 100500620256 101
LEVER 1 1 100500620255 101
SPRING 1 1 1 ** 102
OR GASKET 1 1 1 * 103
OR GASKET 2 2 2 * 104
SLEEVE 1 1 1 100500901164 105
SPRING 1 ** 106
SPRING 1 1 ** 106
RING 1 1 1 ** 107
LEVER 1 100500340963 108
LEVER 1 1 100500340962 108
INSERT 1 500501170006 109
SPECIAL WASHER 1 1 100500100509 110
SCREW M5x16 UNI 5933 1 1 --- 111
OTHER SPARE PARTS D12 D18 D28 CODE

GASKETS KIT X 5.001.1.053
GENERAL MAINTENANCE KIT X 5.001.1.050
GENERAL MAINTENANCE KIT X X 2.002.1.310
OIL PUMP KIT X X X 2.002.1.041
ACCESSORY ITEM IN SUCTION D12 D18 D28 CODE

CONDENSATION SEPARATOR DN25KF X X X 5.001.1.047
ACCESSORY ITEM ON EXHAUST D12 D18 D28 CODE

OIL TRAP FILTER DN25KF X X X 2.009.0.003
OIL TRAP FILTER CARTRIDGE DN25KF X X X 5.007.0.009
RECOMMENDED OIL CODE Q.TY

ROTOIL SH - 200 5.023.0.012 1[l]
ROTOIL SH - 200 5.023.0.013 5[l]
ROTOIL SH - 200 5.023.0.014 25 [ l ]
ROTOIL ES - 68 5.023.0.007 1[l]
ROTOIL ES - 68 5.023.0.008 2[l]
ROTOIL ES - 68 5.023.0.009 5[l]
ROTOIL ES – 68 5.023.0.010 25 [ l ]
Legend:
• Parts marked with an asterisk (*) may be found in both the Gaskets Kit and the General Maintenance Kits.
• Parts marked with two asterisks (**) may be found in the General Maintenance Kit only.
• Parts marked with three asterisks (***) may be found in the OIL PUMP KIT.
• Parts marked with three dashes (---) are not scheduled for supply as spares.
• Parts marked with “X” letter are scheduled for supply as spares and/or accessories.

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VACSOUND

Code: 8.003.A.002 - rev. 5 26/11/2018 File: VacEco_eng.doc

1.1 Purpose of this chapter 5

2. Description and characteristics 7

2.1 Purpose of this chapter 7

3. Installation and operation 13

3.1 Purpose of this chapter 13

4.1 Purpose of this chapter 17

5.1 Purpose of this chapter 47

VACSOUND ECO – Operating and maintenance instructions 3

The manual comprises 5 chapters, as described below:

2. Chapter 2, DESCRIPTION AND CHARACTERISTICS, provides a description of the

3. Chapter 3, INSTALLATION AND OPERATION, provides the main items of information

4. Chapter 4, MAINTENANCE, is a summary of the main maintenance actions, with a table

4 VACSOUND ECO – Operating and maintenance instructions

1.2 Safety rules

• Putting the pump into service, or managing its operation;

must read the documentation carefully so as to be aware of the potential dangers

Further safety rules will be found in the chapters on specific operations.

VACSOUND ECO – Operating and maintenance instructions 5

CAUTION: Operating procedures, technical information and precautions which, if not

WARNING: Operating procedures, technical information and precautions which, if not

NOTE: Operating procedures, technical information and precautions that must be

Figure 1-1 Product

6 VACSOUND ECO – Operating and maintenance instructions

CHAPTER 2, DESCRIPTION AND CHARACTERISTICS, describes the constituent parts of the

2.2 Technical description

VACSOUND ECO – Operating and maintenance instructions 7

2.4 Vacuum seals

2.5 Gas ballast valve

2.6 Anti-suckback device

8 VACSOUND ECO – Operating and maintenance instructions

PROPERTY UNIT D12 D18 D28

Nominal flow 50 Hz m3/h 14,2 20,5 30,2

Nominal flow 60 Hz l/min 290 420 610

Nominal flow 60 Hz cfm 10,2 14,8 21,5

Tolerated water vapor pressure mbar 20 30 30

Max. water vapor pumped g/h 160 350 550

Min./max. oil capacity l 0,25/0,6 0,5/1 0,5/1

Electric motor 50 Hz (1ph/3ph) kW 0,45/0,55 0,75/0,90 0,75/0,90

Electric motor 50/60 Hz (1ph/3ph) kW 0,37/0,45 0,75/0,90 0,75/0,90

Rotation speed 50 Hz rpm 1500 1500 1500

Rotation speed 60 Hz rpm 1800 1800 1800

Noise level at final vacuum at 1 m. dB(A) 52 52 52

Operating temperature (**) °C (°F) 45 (113) 45 (113) 45 (113)

Weight with 50 Hz, 1ph motor (3ph) kg 22,8 36,2 36,2

Dimensions (cf. also next Table):

Length, 1ph (3ph) mm 471 (450) 540 (510) 540 (510)

Width mm 134 164 164

Height mm 212 242 242

DN 25KF 25KF 25KF

(*)According to PNEUROP standards 6602

VACSOUND ECO – Operating and maintenance instructions 9

Figure 2-1 View of the pump

10 VACSOUND ECO – Operating and maintenance instructions

REFER TO FIGURE 2-2

Figure 2-2: Pump dimensions

Figura 2-3: Typical Performance Curves

VACSOUND ECO – Operating and maintenance instructions 11