Pfeiffer Vacuum OME 25 HP User manual

OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
EN
EN
Translation of the original instructions
Translation of the original instructions
OME 25 HP - OME 25 HP+
OME 25 HP - OME 25 HP+
Oil mist eliminator and Oil drain kits
Oil mist eliminator and Oil drain kits

OME 25 HP / OME 25 HP+
Page 1
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
II. OME 25 HP/HP+ OIL MIST ELIMINATOR..............................................1
II.1 - THE MODELS..................................................................................................................2
II.2 - OPERATING PRINCIPLE OF THE ELIMINATOR...........................................................2
II.3 - OPERATING PRINCIPLE OF THE OIL DRAIN KITS......................................................2
II.4 - CHARACTERISTICS.......................................................................................................3
II.5 - INSTALLATION................................................................................................................3
II.6 - OPERATION....................................................................................................................5
II.7 - MAINTENANCE...............................................................................................................6
II.8 - APPLICATIONS NOT RECOMMENDED ........................................................................8
II.9 - SPARE PARTS ................................................................................................................8
FIGURES..........................................................................................................................9 to 13
NOMENCLATURES ............................................................................................................... 14
DECLARATION OF INCORPORATION OF PARTLY COMPLETED MACHINERY............... 15
CONTENTS

OME 25 HP - OME 25 HP+
Page 2 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
II.1. THE MODELS
The OME 25 HP is designed for applications involving frequent cycling or high pressure operation.
Incorporating a filter element of bigger capacity, the OME 25 HP+ is the next step toward completely oil
free exhausted gases.
The OME 25 HP model and the OME 25 HP+ model are same design but have a different filter capacity.
They can be equipped with an ODK kit (see II.3).
II.2. OPERATING PRINCIPLE OF THE ELIMINATOR
The oil mist eliminator is mounted at the exhaust of a rotary vane pump and separates oil droplets and
vapours gases emitted at the exhaust of the oil-sealed vacuum pumps. The contaminated oil is filtered.
The eliminator has a safety valve set to 500 hPa relative pressure which prevents overpressure in
the pump oil case when the filter element is saturated. Do not allow solid or pasty deposits issuing of
pumped vapours to stick the valve to the filter.
II.3. OPERATING PRINCIPLE OF THE OIL DRAIN KITS
a) Oil drain kit ODK1 (see figure a)
Used with the OME 25 HP/HP+ oil mist eliminator, it allows to re-inject the filtered oil, accumulated in the
oil mist eliminator through the gas ballast.
It consists of a drain pipe which is connected on one end to the bottom of the OME 25 HP, and on the
other end to the inlet of the gas ballast.
With an ODK1 kit the pump is not sealed when switched off.
b) Oil drain kit ODK2 (see figure b)
Used with the OME 25 HP/HP+ oil mist eliminator, it is similar to the ODK1 with a NC solenoid valve
located at the inlet of the gas ballast. The valve must be connected.
In case of power failure, the valve will close and the pump will stay tight
when stopped.
II. OME 25 HP/HP+ OIL MIST ELIMINATOR

OME 25 HP / OME 25 HP+
Page 3
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
II.4. CHARACTERISTICS
Characteristics Unit OME 25 HP
104199 OME 25 HP+ 108341
Weight Kg 1.2
Connection ISO-KF DN25
Tightness hPa l/s 1·10-6
Mounting on pump nipple marked with «PUMP » label
Dimensions see figure 3
Filter element OME 25 HP OME 25 HP +
Material Original filter element from manufacturer: Cartridge: glass microfibers and epoxy resin. Original filter element from manufacturer: Borosilicate glass fiber PF impregnated and
100 % polyester fiber /NBR binder.
Filtration level Trapping: 99.99% of vapor droplets greater
than 0.6 microns in diameter. Trapping: 99.99% of vapor droplets greater
than 0.3 microns in diameter.
The OME 25 HP and OME 25 HP+, are delivered with the following connections accessories:
Description Reference
(see Figure 1A/1B) P/N
1 centering ring DN25 ISO-KF BSee the products
catalog
1 O-ring DN25 ISO-KF C
1 quick connect clamp DN25 ISO-KF D
Others available accessories P/N
Oil drain kit ODK1 104360
Oil drain kit ODK2 - 230 V 50/60 Hz 104361
Oil drain kit ODK2 - 115 V 60 Hz 104362
Oil drain kit ODK2 - 200 V 50/60 Hz 104364
Oil drain kit ODK2 - 24 V DC 104365
II.5. INSTALLATION
These operations should be performed when the pump is stopped.
In any installation configuration, remove the vent valve installed on the
pump exhaust port. This is necessary to allow oil to return to the pump
(risk of seizing). This operation is necessary to allow the oil return in
the pump (risk of seizing).

OME 25 HP - OME 25 HP+
Page 4 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
Case 1: The oil mist eliminator is mounted on the exhaust port located vertically on the pump.
Proceed as follows:
• Remove the vent valve (150) mounted in the exhaust port (120).
• Assemble as shown in Figure 1a) using the connection accessories provided with the eliminator.
Case 2: The oil mist eliminator is mounted on the exhaust port located horizontally on the pump.
• Assemble as shown in Figure 1b) using the connection accessories provided with the eliminator
and a 90° elbow (ordered separately).
Case 3: The oil mist eliminator is equipped with ODK1 kit (Figure 2a)
• Install the oil mist eliminator on the rotary vane pump exhaust.
• On the pump oil casing, unscrew the gas ballast cover (2 screws) with an allen wrench, and
remove the adjustment button, the spring and the oil case feedthrough (55).
• Replace the oil case feedthrough (55) by the ODK1’s, by checking the good positioning of the
jet (52).
• On the oil mist eliminator, remove the drain plug (11) equipped with its O’ring.
• Screw the connector (53) in the bottom of the OME 25 HP with a thin spanner 12 mm and install
the 4/6 Rilsan pipe on the connector and secure with the nut.
Cas 4: The oil mist eliminator is equipped with ODK2’s kit (Figure 2b)
• Install the oil mist eliminator on the rotary vane pump exhaust.
• On the pump oil casing, unscrew the gas ballast cover (2 screws) with an allen wrench, and
remove the adjustment button, the spring and the oil case feedthrough (55).
• Replace the oil case feedthrough (55) by the ODK2’s, by checking the good positioning of the
jet (52).
• On the oil mist eliminator, remove the drain plug (11) equipped with its O’ring.
• Screw the connector (53) in the bottom of the OME 25 HP with a thin spanner 12 mm and
install the 4/6 Rilsan pipe on the connector and secure with the nut.
• Unscrew the nut (59) on the valve and equip with the supplied coil by checking its compatibility with
the power supply voltage.
• Wire the connector (58).
• Connect the connector (58) and the coil (59). Power the coil with the corresponding voltage.
In four cases:
• The oil mist eliminator can be located away from the pump.
• Use a suitable diameter of pipe between pump and oil mist eliminator.
In all cases:
• Connect the nipple marked with the «Pump »label on the exhaust side of the pump.

OME 25 HP / OME 25 HP+
Page 5
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
All maintenance must be performed by as skilled maintenance operator
trained in the relevant health and safety aspects (EMC, electrical
hazards, chemical pollution, etc.). Isolate the product from all energy
sources (mains electricity, compressed air, etc.) before starting work.
Always check that the voltage of the Oil drain kit ODK2 match with the sector voltage.
The electrical connection is at the customer’s expense in accordance with main voltage and the type of
operation: tightness when the pump stops or air inlet on request.
• 1) Used to assure the tightness of the pump when the pump stops:
The solenoid valve (NC) has to be connected on the same main supply of the pump in order to close it
when the pump stops.
• 2) Used to rmote control cyclic airinlet on the pump: :
The solenoid valve (NC) has to be connected on a main supply independent from that of the pump.
This mode of wiring does not insure the tightness in case of power cut.
The opening of the solenoid valve allows to send back the oil into the case of the pump in a very short
time.
II.6. OPERATION
Switch-on the pump. When working, oil and settlings are trapped by the filter element until it will
be clogged. In such case the safety valve should open when the inner pressure is exceeding the
atmospheric pressure by 500 hPa (7 PSI).
When the oil level in the oil mist eliminator exceeds the level of the sight glass, put the pump in low
pressure in order to let return the oil in the pump. Check again and fill the oil if necessary.
In case the level remains high and that the pump is in low pressure, the filter element is certainly
saturated (see a1, chapter I.7).
Do not reuse an oil eliminator that has been stored for a long period
( > 1 year) without first performing maintenance on it and replacing its
filter element.
• At the pump exhaust, the discharge circuit must be such that the
resulting overpressure in the oil case is as low as possible. The
maximum overpressure recommended for correct pump operation is
500 hPa (7 PSI). A slight negative pressure in the oil case
(100 to 200 hPa / 1.5 PSI), at the exhaust, will prevent gases from
accumulating and reduce pump corrosion and pollution.
• When the oil mist eliminator is installed, check periodically at the
exhaust orifice that:
- the exhaust valve can move, so the exhaust is not blocked,
- the exhaust valve can move, no overpressure in the oil case.

OME 25 HP - OME 25 HP+
Page 6 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
II.7. MAINTENANCE
During pump removal, draining or oil mist eliminator maintenance, the
operator may come in contact with process residues which could cause
severe injury or death. Ask your safety department for instructions
according to the local regulations.
We recommend:
- Wearing gloves, safety glasses, respirator mask, or any appropriated
safety equipment.
- Ventilating the premises well or working under an extracted hood.
- Not disposing of maintenance waste through standard disposal
channels. Have it destroyed by a qualified company if necessary.
- Not disposing of the used filter element through standard disposal
channels; have it destroyed by a qualified company if necessary.
- Install the inlet and exhaust backing plates; these accessories are
shipped with the pump.
a) Filter element saturation
The following saturated filter element appears:
- excessive smoke or droplets, or puffs of steam appear at the oil mist eliminator exhaust,
- a rapid or significant drop in the oil level,
- an increase in the pump oil case temperature.
The time taken to reach saturation point depends on the number of pumping operations, their frequency,
the volume of pumped gas, and the kind of the oil used. When the filter element is saturated, replace as
follows:
a1) Draining the eliminator OME 25 HP/HP+
• Drain by removing the plug (11) and recover oil in appropriate containers.
The connection of the drain port to a circuit collectory expelled liquid unsures an automatic purge. In this
case, connect the circuit collectory expelled liquid to a gas collector.
a2) When the OME 25 HP/HP+ is equipped with an oil drain kit ODK1 or ODK2
• Spray with compressed air to remove any obstructions.
b) Disassembly (OME 25 HP: Figure 4a) or (OME 25 HP+: Figure 4b)
These operations should be performed when the pump is stopped.
• Detach the eliminator from the pump and disassemble on a workbench.
• Unscrew the assembling screw (22): the filter element (21) stays on the base (2), remove it.
• Remove the o-ring (9) from the base (2).
• Remove the equipped valve seat (13) from the body (1).
• Unscrew the assembling screw (17) and remove the washer (15) and the valve (16).
c) Oil drain kit removal
• Remove the pipe on the connector (53).
• Remove the DN25 (D) clamping ring and remove the OME.

OME 25 HP / OME 25 HP+
Page 7
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
d) Cleaning
Never clean the filter element: always install a new one equipped with 2
rings.
During disassembly, if the filter element appears very clogged, filled with condensable products or gels,
or is filled with very blackish, strong-smelling oil, it is then necessary to check the quality of the pump oil.
It probably needs to be changed. In this case, drain the pump, replace the oil before installing an oil mist
eliminator equipped with a new filter element.
Elastomer seal (9) must alway be replaced by new one.
After use in mineral or synthetic oil, clean the metal components with a mineral products based
solvent such a AXAREL (1), CARECLEAN (2), PREMACLEAN (3), NAPHTESOL (4). Proceed as follows:
• Clean when cold or hot (max. 45 °C) by dipping or using a cloth.
• Vacuum dry in a ventilated oven.
• The component must be cleaned a second time with alcohol.
After use in (perfluorinate) synthetic oil, clean the metal components in a solvent such as
GALDEN S 90 (5) and proceed as follows:
• Clean when cold by dipping or using a cloth.
• Dry the components in the air or with compressed air.
After use in (non-perfluorinate) synthetic or minetal oil, clean the metal components with a solvent
such as alcohol and proceed as follows:
• Clean when cold by dipping or using a cloth.
• Dry the components in the air.
• Industrial washing solutions can also be used. The cleaning operation should be followed by
vacuum drying.
e) Reassembly
• Position the new o-ring (9) in the lower support (2).
• Install the washer (15) on a new valve (16).
• Position on the valve seat (14) the valve (16) and its washer
(15) (the valve flat face must rest on the valve seat).
• Install the spring (19) on the washer (15), then assemble the
spring support (18) on the valve seat (14) with screws (17) and
washers (20).
• Center the set on a new filter element (21).
(OME 25HP+ filter element is equipped with 2 o-rings).
• Install the set in the lower support (2), by aligning the spring support (18) in the axis of the fixing
holes of the body (1).
• Install the body (1) on the lower support (2) and assemble with the screws (22) and washers (23),
from underneath, without returning the set.
• Connect the eliminator to the pump exhaust port and install the oil kit if necessary (see paragraph
II.5.).
(1). . . . DUPONT DE NEMOURS registered trademark (4) NIPPON OIL CORPORATION registered trademark
(2). . . .CASTROL registered trademark (5) MONTEDISON registered trademark
(3). . . .DOW registered trademark
18

OME 25 HP - OME 25 HP+
Page 8 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
II.8. APPLICATIONS NOT RECOMMENDED
Oil mist eliminators should not be used for the following applications:
drying, freezedrying, pumping condensable vapors, impregnation with
polymerizable resins and debubbling monomers. Filter elements are
flammable: do not use eliminators when pumping flammable products
such as oxygen or silane.
The standard oil mist eliminator must also not be used for pumping
corrosive products or for microelectronic and chemical applications.
Oil mist eliminator must be essentially used with rotary vane pumps type 3 to 13 cfm I and SD series.
II.9. SPARE PARTS
Parts which must be replaced each time the filter element is changed:
Rep. Description P/N Qty
OME 25 HP OME 25 HP+
21 Filter element
* (equipped with 2 O-rings) 100522 107494 * 1
16 Valve 054196 1
9O’Ring 083539 1
3Oil level sight glass with O’ring 083546 1
11 Equipped drain plug with O’ring 101575 1
Spare parts for oil drain kit
Rep. Description P/N Qty
52 Jet (ODK1, ODK2) 102832 1
59 Coil 230V 50/60 Hz 103552 1
59 Coil 115V 60 Hz 038122 1
59 Coil 100V 50/60 Hz 038126 1
59 Coil 200V 50/60 Hz 038125 1
59 Coil 24V DC 038066 1

OME 25 HP / OME 25 HP+
Page 9
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
FIGURES
Accessoires livrés avec le séparateur de brouillard / Accessories delivered with OME Pièces de la pompe primaire / Rotary vane pump parts
Asp. / In.
Pump
Ref. / Exh.
B C D
120
110 150
140
130 130
Pump
Asp. / In. Ref. / Exh.
DBC
D
B C
120130140110
Figure 1a Figure 1b

OME 25 HP - OME 25 HP+
Page 10 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
SEPARATEUR DE BROUILLARD
OME 25 HP
OIL MIST ELIMINATOR
PPM PASCAL
PASCAL RVP
TRAVERSEE DE CUVE DU
LEST D'AIR
OIL CASE FEEDTHROUGH
BOUCHON DE
VIDANGE G 1/8
TUYAU 4/6
4/6
PIPE
Ø
Ø
DRAIN PLUG G 1/8
18,5
26
58
53
54
52
51
55
KIT RETOUR D'HUILE TYPE ODK1
OIL DRAIN KIT ODK1
Figure 2a

OME 25 HP / OME 25 HP+
Page 11
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
.
PPM PASCAL
SEPARATEUR DE BROUILLARD
OME 25 HP
OIL MIST ELIMINATOR
LEST D'AIR
PASCAL RVP
BOUCHON DE VIDANGE G 1/8
TUYAU 4/6
TRAVERSEE DE CUVE DU
4/6PIPE
Ø
Ø
DRAIN PLUG G 1/8
OIL CASE FEEDTHROUGH
53
54
52
56
51
59
58
57
74,5
24,7
23,5
58
55
KIT RETOUR D'HUILE TYPE ODK2
OIL DRAIN KIT ODK2
Figure 2b

OME 25 HP - OME 25 HP+
Page 12 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
Carre / Square 95 x 95
Refoulement Pompe Primaire à palettes
Niveau d'huile / Level sight glass
Vidange / Drain plug
DN 25 ISO-KF
Carre / Square 86 x 86
DN 25 ISO-KF
Possibilité de raccorder kit de retour d'huile
Must be connected on the rotary vane pump exhaust
Oil drain kit connection
144,3
50
12,8
0,5
25,3
7,5
41
31,5
201,3
86Ø
0,5
Figure 3

OME 25 HP / OME 25 HP+
Page 13
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
Raccordement pompe primaire à palettes
Rotary vane pump connection
18
19
20
11
9
21
2
17 14 15 16
22
1
23
3
2
18 17
21
3 9 11
19
14
15
16
Raccordement pompe primaire à palettes
Rotary vane pump connection
22
1
23 20
OME 25 HP Figure 4a
OME 25 HP+ Figure 4b

OME 25 HP - OME 25 HP+
Page 14 Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+
NOMENCLATURE KIT DE RETOUR D’HUILE
OIL DRAIN KIT NOMENCLATURE
Rep. Désignation Description ODK1 ODK2 Nbr.
51 Raccord équerre mâle Mâle elbow connector X X 1
52 Gicleur Jet X X 1
53 Raccord union mâle Mâle connector X X 1
54 Tuyau Rilsan (naturel) Rilsan pipe X X 35 cm
55 Traversée de cuve Feedthrough XX1
56 Raccord mam. mâle Mâle connector - X 1
57 Electrovanne vide Electrovalve - X 1
58 Câble électrique et connecteur Equipped cable + connector - X 1
59
Bobine minisol 230 V 50/60 Hz Coil 230 V 50/60 Hz - X
Bobine minisol 115 V 60 Hz Coil 115 V 60 Hz - X 1
Bobine minisol 100 V 50/60 Hz Coil 100 V 50/60 Hz - X 1
Bobine minisol 200 V 50/60 Hz Coil 200 V 50/60 Hz - X 1
Bobine minisol 24 V DC Coil 24 V DC - X 1
NOMENCLATURE OME 25 HP - OME 25HP+
Rep. Désignation (matériau) Description (material) Nbr.
1Corps du séparateur (aluminium) Body (aluminium) 1
2Corps inférieur (aluminium) Lower support (aluminium) 1
3Voyant de niveau + joint
(polyamide + élastomère NBR)* Sight glass + O-ring (polyamid + elastomer NBR)* 1
9Joint torique (élastomère NBR)* O-ring (elastomer NBR)* 1
11 Bouchon 1/8 + Joint torique (aluminium + NBR) Plug 1/8 + O-ring (aluminium + NBR) 1
14 Support clapet (aluminium) Valve seat (aluminium) 1
15 Rondelle (acier inoxydable) Washer (stainless steel) 1
16 Clapet (élastomère FPM)* Valve (elastomer FPM)* 1
17 Vis CHC M 8 x 3 (acier) Screw CHC M8 x 3 (steel) 2
18 Ressort support (acier) Spring support (steel) 1
19 Ressort (acier) Spring (steel) 1
20 Rondelle (acier) Washer (steel) 2
21
Élément filtant (OME 25 HP)
époxy + fibre de verre Filter element (OME 25 HP) (epoxy binder + glass microfibers) 1
Élément filtant (OME 25 HP+) + 2 joints (NBR)
(fibre de verre borosilicatées imprégnées résine
phénolique + fibre 100 % polyester)
Filter element (OME 25 HP+) + 2 O-rings
(NBR)
(borosilicate glass fiber PF impregnated +
100 % polyester fiber)
1
22 Vis CHC M 5 x 16 (acier) Screw CHC 5 x 16 (steel) 4
23 Rondelle (acier) Washer (steel) 4
(*) suivant norme NFT 40-002 - following NFT 40-002 standard

OME 25 HP / OME 25 HP+
Page 15
Pfeiffer Vacuum SAS - Operating Instructions OME 25 HP / OME 25 HP+

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T [phone]
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Ed 07 - Date 2016/11 - P/N:10421SOFR
Ed 07 - Date 2016/11 - P/N:10421SOFR
*104210*