LEYBOLD SOGEVAC SV 16 User manual

SOGEVAC
®
SV16 D(I) - SV25 D(I)
Single-stage, oil-sealed rotary vane pump
Original Operating Instructions 300359027_002_C2
and spare parts list
Part No.
960180V...
960215V...
960191V
960194V
960195V
960196V
and their variants

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Contents
Page
0 Important Safety Information 4
1 Description 6
1.1 Principle of operation 6
1.2 Standard Specification 7
1.3 Technical Data 8
1.4 Ordering information 14
1.5 Accessories 16
1.6 Lubricants 17
2 Transport and Storing 18
3 Installation 19
3.1 Setting up 19
3.2 Connection to system 20
3.3 Connecting Cooling Water 22
3.4 Electrical Connections 23
3.5 Startup 28
4 Operation 29
4.1 Pumping of Non-condensable Gases 29
4.2 Pumping of Condensable Gases and Vapors 29
4.3 Switching off / Shutdown 30
4.4 Ultimate Pump Pressure 31
5 Maintenance 32
5.1 Leybold Service 32
5.2 Maintenance Schedule 33
5.3 Checking the Oil 33
5.4 Oil Change 34
5.5 Replacing the Exhaust Filters 35
5.6 Cleaning the Dirt Trap 35
5.7 Replacing Valves 35
5.8 Replacing the Vanes 36
5.9 Replacing the Electrical Devices 36
6 Troubleshooting 37
7 Spare Parts 39
8 Waste Disposal 43
EC Declaration of Conformity 44

3300359027_002_C2 - 05/2020 - © Leybold
Safety Information
Obligation to Provide Information
Before installing and commissioning the pumps, carefully read these
Operating Instructions and follow the information so as to ensure optimum
and safe working right from the start.
The Leybold SOGEVAC®has been designed for safe and efficient operation
when used properly and in accordance with these Operating Instructions. It is
the responsibility of the user to carefully read and strictly observe all safety
precautions described in this section and throughout the Operating
Instructions. The SOGEVAC®must only be operated in the proper condition
and under the conditions described in the Operating Instructions. It must be
operated and maintained by trained personnel only. Consult local, state, and
national agencies regarding specific requirements and regulations. Address
any further safety, operation and/or maintenance questions to our nearest
office.
“Trained personnel” for the operation of this pump are
■skilled workers with knowledge in the fields of mechanics, electrical engi-
neering and vacuum technology and
■personnel specially trained for the operation of vacuum pumps.
DANGER indicates an imminently hazardous situation which, if not avoid-
ed, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE is used to notify users of installation, operation, programming or
maintenance information that is important, but not hazard related.
We reserve the right to modify the design and the specified data. The illustra-
tions are not binding.
Retain the Operating Instructions for further use.
NOTICE
DANGER
WARNING
CAUTION
NOTICE

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Safety Information
0 Important Safety Information
0.1 Mechanical Hazards
1 Never expose part of the body to the vacuum. There is a danger of
injury. Never operate the pump with an open and thus accessible inlet.
Vacuum connections as well as oil filling and oil draining openings
must not be opened during operation of the pump.
0.2 Electrical Hazards
1 The electrical connection must only be provided by a trained person.
Please observe the national regulations in the country of use like
EN50110-1 for Europe, for example.
2 Disconnect the unit from the power supply before starting any work.
3 Always operate the pump with a properly connected protective earth
conductor and make sure that the pump connection box are closed.
4 Lay the connecting lines so that these cannot be damaged. Protect
the lines against humidity and contact with fluids.
5 Avoid thermally stressing the lines by unfavourable laying. Provide
strain relief for the connecting lines so that the plugs and the line con-
nectors are not subjected to excessively high mechanical stresses.
6 Lay electric feed lines so that there is no risk of tripping over these.
0.3 Thermal Hazards
1 When operating pump is hot and some surfaces could reach a tem-
perature higher than 120 °C (248 °F). There is a risk of burn by touch-
ing.
2 As a touching protection, you can use the “Noise enclosure for SV40
BI + 65 BI FC” P/N 960331NENC. The noise enclosure is an accesso-
ry not included in the pump delivery.
3 All work on a pump which is “still warm from operation” should be
done only whilst wearing protective gloves.
4 Handle the pump only while vented and after having let it cool down.
5 Never remove the oil-fill or oil-drain plugs while the pump is running.
There exists the risk of suffering burns. Always wear protective gloves
and protective goggles also for protection against the oil.
0.4 Hazards Caused by Materials and Substances
1 SOGEVAC®pumps are not designed:
■for pumping of dusty, aggressive, corrosive, flammable or explosive
gases or gases mixtures;
■for pumping of oxygen or other highly reactive gases with a greater
concentration than atmospheric concentration (>20%);
■for working in flammable, explosive or dusty environment.
For all these cases, special materials must be used. In case of doubt,
please contact Leybold.
See also the limits of use indicated in the CE declaration of conformity.
WARNING
DANGER
CAUTION
DANGER

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Safety Information
2 Depending on the process involved, dangerous substances and oil
may escape from the pump. Take the necessary safety precautions!
3 Take appropriate precautions to insure that the pump cannot start.
4 If the pump has pumped hazardous gases it will be absolutely
necessary to determine the nature of the hazard involved and take
the appropriate safety precautions.
5 Observe all safety regulations!
6 Take adequate safety precautions prior to opening the intake or
exhaust port.
7 Respect the instructions concerning environment protection when
discarding used oil or exhaust filters!
8 Some pumps use perfluoropolyether (PFPE) as lubricant.
When handling PFPE you should observe the following:
During thermal decomposition at temperatures over 290 °C toxic and
corrosive gases are released. This is not likely to happen in a
SOGEVAC pump. When handling PFPE keep it away from open fires.
Do not smoke with PFPE on your fingers.
Touch the inner sections of the pumps only while wearing clean
gloves, and use clean tools; do the necessary work in clean and dry
rooms.
0.5 Danger of Pump Damage
1 Liquid and solid particles must not enter the pump. Install the ade-
quate filters, separators and/or condensers. In case of doubt consult
Leybold.
2 The intake line of the pump must never be connected to a device with
over atmospheric pressure. Design the exhaust line so that no pressure
higher than 1,15 bar abs. (0,15 bar rel.) can occur. Never work with
closed or restricted pump exhaust.
3 Operating of the pump without oil or operating with incorrect direction
of rotation can destroy the pump or lead to oil backstreaming. After
having made changes to the wiring, check the motor’s direction of
rotation.
4 Never use discarded seals. Always assemble using new seals.
5 The pump must be packaged in such a way that it will not be damaged
during shipping, and so that no harmful substances can escape from
the package.
This Manual is valid for standard products. If the delivered pump is a special
version, then the pump will be delivered with an additive document which is
to be understood as a part of the Instruction Manual.
Upon request, we can deliver translations of this manual in other languages.
NOTICE

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Description
1 Description
SOGEVAC pumps are designed for pumping of inert gases in the range of
rough vacuum, between atmospheric pressure and end pressure of the
pump, also in continuous duty.
1.1 Principle of operation
The SOGEVAC SV 16 D (I) and SV 25 D (I) are single stage, oil-sealed rotary
vane pumps.
The anti-suckback valve, gas ballast valve and an exhaust filter, oil return
circuit are integrated functional elements of the SOGEVAC. The pump is
driven by a motor directly integrated into the housing.
The rotor, mounted eccentrically in the pump cylinder, has three vanes which
divide the pump chamber into several compartments. The volume of each
changes periodically with the rotation of the rotor.
As the rotor rotates, the intake portion of the pumping chamber expands and
sucks in gas through the intake port. The gas passes through the dirt trap
and the open antisuckback valve and enters the pump chamber. As the rotor
rotates further, the vane separates part of the pump chamber from the intake
port. This part of the pump chamber is reduced, and the gas is compressed,
then the gas is expelled from the chamber via the exhaust valve.
Oil injected into the pump chamber serves to seal, lubricate and cool the
pump.
The oil entrained with the compressed gas is coarsely trapped in the bottom
part of the oil case. Then fine filtering occurs in the integrated exhaust filter
elements. The proportion of oil in the exhaust gas is thus reduced below the
visibility threshold (over 99 % entrapment rate).
The oil trapped in the exhaust filters is returned to the oil cycle at the anti-
suckback valve. The oil return is controlled by a float valve.
Oil from the oil reservoir is injected directly, so as over the end flange
bearings via bores in these end flanges in the pump.The oil flow is ensured
by the difference of pressures within the pump.
By opening the gas ballast valve, a dosed quantity or air - so-called “gas
ballast” - is admitted into the pump chamber. This gas ballast prevents
condensation (up to the vapor tolerance specified in the Technical Data)
when pumping condensable gases or vapors.
Unintentional venting of the vacuum chamber as well as oil suckback when
switching the pump off are prevented by the built-in antisuckback valve.
When the pump is switched off, the pump chamber is vented with gas from
the oil pump via a bore in the exhaust valve. Since a pressure in the inner
pump section is then higher than in the intake line, the anti-suckback valve
closes. The anti-suckback must be clean and in good condition for a tight
closing. The gas flowing into the pump chamber also prevents oil from
entering the chamber when the pump is idle.
The anti suck-back valve is not a safety valve. If oil back flowing is to be
avoided by all means, it is necessary to mount a separate safety valve on the
pump inlet.

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Description
A fan attached to motor generates the air flow needed to cool the pump.
The pumps with some single phase motors have been tested to the
requirements of CAN/CSA-C22.2 No. 61010-1, third edition, including
Amendment 1, or a later version of the same standard incorporating the
same level of testing requirements up to 400 mbar abs in continuous duty.
1.2 Standard Specification
The pumps with three-phase motors are supplied with a three phase socket
and plug to be wired by the end-user. A suitable C13 plug is provided for
pumps with single-phase AC motor.
Single phase pumps include a C14 power socket and an ON-OFF switch
with overload protection.
The amount of oil needed for the first filling is supplied in oil cans.
The intake port is blanked off by a protective sticker. After having ripped off
the protective sticker, the exhaust plug is to be screwed into the exhaust
port. That plug is supplied loose with the pump.
Stability of pump is insured with accessories of Leybold.
Mounting of any other accessory will engage the responsability of user con-
cerning stability of the pump.
When ordering spare parts, please always state the serial and catalog num-
bers of the pump.

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Description
1.3 Technical Data
at 50 Hz
SV16 D SV25 D SV16 DI SV25 DI
Nominal speed 1) m3·h-1 16 25 16 25
Pumping speed 1) m3·h-1 14.5 22.5 14.5 22.5
Ultimate pressure without gas ballast 1) mbar < 0.5 < 0.5 ≤ 0.1 ≤ 0.1
Ultimate pressure with gas ballast 1) mbar < 1.5 < 1.5 < 1.0 < 1.0
Water vapor tolerance 4) mbar 15 15 15 15
Max. water vapor throughput with gas ballast 4) kg·h-1 0.05 0.15 0.05 0.15
Connections G1/2 G1/2 DN 25 ISO-KF
Weight kg 25
Oil capacity l 2
Motor power kW 0.75 0.90 0.75 0.90
Rated speed min-1 1500
Noise level 2) dB (A) ≤ 59
Leak rate mbar l·s-1 1·10-5
Type of protection IP20
Ambient temperature T 3 φ12 ... 40°C
54 ... 104°F
Ambient temperature T 1 φ18 ... 40°C
64 ... 104°F
Humidity rel. ≤ 80 % T ≤ 31°C
≤ 50 % 31°C<T ≤40°C
Supply voltage fluctuation ±10 % UN
Normal presence of transient over-voltages on the mains supply
1) to DIN 28400 and following numbers
2) operated at the ultime pressure without gas ballast, free-field measurement at a distance of 1m
4) with room temperature 20°C to 25 °C
1) Valid only with LVO120 mineral oil

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Description
250100
268
100
118 120
88 20
60
402
26
165108
247
212
43
128 218 56 38
158
19835
117
28 76
Air cooled version
Dimensions ± 5mm
Weight ± 2kg
Space for ventilation
GRAVITY CENTER
Option
Ext.Bypass
Water inlet
Water outlet
Water cooled version
G1/4
G 1/2
G 1/2
MOUNTING 4 M6 X 6
Space for mounting exhaust filter
Lifting lug
Fig. 1 Dimensional drawing of SV16 D and SV25 D

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Description
GRAVITY CENTER
268
118 120
88
20
60
26
177
56
41
158
107
120
38
213
250
46
19835
218128
248
259
249
100
402
25 KF
Space for ventilation Space for mounting exhaust filter
25 KF
Lifting lug
Oil filling
Gas ballast
Oil drain G3/8"
4 X M6x6
BB
Dimensions ± 5mm
Weight ± 2kg
Fig. 2 Dimensional drawing of SV16 DI and SV25 DI

11300359027_002_C2 - 05/2020 - © Leybold
Description
without gas ballast with gas ballast
10-2
102
103
101
103
104
105
102
mbar
Pa
29.921
29.530
25.980
0
29.9
Inches.Hg
Pressure
Pumping speed
50
CFM
102
1
101
10
5
29.918
100
100
101
10-1
SV16 D
at 50 Hz
m3·h-1
SV25 D
without gas ballast with gas ballast
1
0
-2
102
103
101
103
104
105
102
mbar
Pa
29.921
29.530
25.980
0
29.9
Inches.Hg
Pressure
Pumping speed
at 50 Hz
50
CFM
m3·h-1
102
1
101
10
5
29.918
100
100
101
10-1
SV16 DISV25 DI
Fig. 3 Pumping speed curves of SV16 D(I) and SV25 D(I), 50 Hz

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Description
1.3.1 Technical Data at 60 Hz1)
SV16 D SV25 D SV16 DI SV25 DI
Nominal pumping speed cfm 11 17 11 17
Pumping speed cfm 10 15 10 15
Ultimate pressure without gas ballast Torr ≤ 0.4 ≤ 0.4 ≤ 0.08 ≤ 0.08
Ultimate pressure with gas ballast Torr ≤ 1.15 ≤ 1.15 ≤ 0.8 ≤ 0.8
Water vapor tolerance Torr 11 11 11 11
Water vapor pumping with gas ballast lbs/hr 0.05 0.2 0.05 0.2
Connections ports NPT 1/2 NPT 1/2 DN 25 ISO-KF
Weight lbs 55
Oil filling qt 2.1
Motor power hp 1.0 1.2 1.0 1.2
Rated speed r.p.m. 1800
Noise level to DIN 45 635 dB (A) ≤ 59
Leak rate mbar l·s-1 1·10-5
Type of protection IP20
Ambient temperature T 3 φ12 ... 40°C
54 ... 104°F
Ambient temperature T 1 φ18 ... 40°C
64 ... 104°F
Humidity rel. ≤ 80 % T ≤ 31°C
≤ 50 % 31°C<T ≤40°C
Supply voltage fluctuation ±10 % UN
Normal presence of transient over-voltages on the mains supply
1) Valid only with LVO120 mineral oil
Conversion of Units
Conversion mm - inch, see Fig. 1 & 2
mm 20 32 36 115 190 196 198 216 218 250 263 415
inch 25/32 1 1/4 1 7/16 417/32 71/2 723/32 713/16 81/2 819/32 927/32 10 3/8 16 11/32
Conversion factors Different pressure units Different pumping speed units
Mbar (millibar) torr inches Hg
vacuum
m3·h-1 l·s-1 cfm
1 lb = 0.453 kg 1013 760 0 m3·h-1 = m3/h 1 0.278 0.589
1 qt = 0.946 l 400 300 18.12
1 hp = 0.735 kW 133 100 25.98 l·s-1 = l/s 3.60 1 2.12
1 r.p.m. = 1 min-1 4 3 29.80
1 inch = 25.4 mm 1 0.75 29.89 cfm (cubic feet per minute) 1.699 0.472 1
0 0 29.92
1 atm (atmosphere) = 1013 mbar Example: 1 m3.H-1 = 0.589 cfm
1 Pa (pascal) = 0.01 mbar = 10-2 mbar Note: the nominal pumping speed of a pump at 60 Hz is 20% higher than at 50
Hz
1 bar = 1000 mbar
1 torr = 1.33 mbar

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Description
without gas ballast with gas ballast
1
0
-2
102
103
101
103
104
105
102
mbar
Pa
29.921
29.530
25.980
0
29.9
Inches.Hg
Pressure
Pumping speed
at 60 Hz
50
CFM
102
1
101
10
5
29.918
100
100
101
10-1
SV16 D
m3·h-1
SV25 D
without gas ballast with gas ballast
1
0
-2
102
103
101
103
104
105
102
mbar
Pa
29.921
29.530
25.980
0
29.9
Inches.Hg
Pressure
Pumping speed
at 60 Hz
50
CFM
m3·h-1
102
1
101
10
5
29.918
100
100
101
10-1
SV25 DI SV16 DI
Fig. 4 Pumping speed curves of SV16 D(I) and SV25 D(I), 60 Hz

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Description
1.4 Ordering information
P/N Pump Motor Cooling GB Oil Inlet & Exhaust
connections
SV16 D
960180V SV16 D A Air Y1 LVO120 G1/2
960181V SV16 D C Air Y1 LVO120 G1/2
960184V SV16 D G Air Y1 LVO120 G1/2
960185V SV16 D D Air Y1 LVO120 G1/2
960186V SV16 D F Air Y1 LVO120 G1/2
SV16 DI
960191V3001 SV16 DI C Air Y1 LVO700 DN 25 KF
960194V3001 SV16 DI E Air Y1 LVO700 DN 25 KF
960195V3001 SV16 DI D Air Y1 LVO700 DN 25 KF
960196V3001 SV16 DI F Air Y1 LVO700 DN 25 KF
SV25 D
960210V SV25 D A Air Y LVO120 G1/2
960211V SV25 D C Air Y LVO120 G1/2
960215V SV25 D E Air Y LVO120 G1/2
Motor
AThree phase
200 V + 10 % - 10 % ; 0.55 kW ; 4.4 A; 50 Hz
200 V + 10 % - 10 % ; 0.75 kW ; 3.8 A; 60 Hz
CThree phase
200 – 240 V ±10 % ; 0.75 kW ; 5.0 A ; 50 Hz
380 – 415 V ±10 % ; 0.75 kW ; 2,2 A ; 50 Hz
200 – 240 V ±10 % ; 0.90 kW ; 4.3 A ; 60 Hz
380 – 460 V ±10 % ; 0.90 kW ; 2.2 A ; 60 Hz
DSingle phase
200 … 240 V ±10% ; 0.75 kW ; 5.4 A ; 50 Hz
200 … 240 V ±10% ; 0.90 kW ; 3.6 A ; 60 Hz
ESingle phase
230 V ±10%; 0.75 kW ; 5.2 A ; 50 Hz
230 V ±10%; 0.90 kW ; 5.3 A ; 60 Hz
FSingle phase 110 … 115 V ±10% ; 50/60 Hz & 220 … 230 V ±10% ; 50/60Hz ; 0.66 kW
GSingle phase 100 V - 15 % & 100 V + 10 %; 50/60 Hz
Cooling
H2O Water (pump) & air (motor)
Air Air for pump & motor
Gas ballast
N No
Y1 Manual 0.4 m3/h
Y2 Manual 1.0 m3/h

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Description
Motor Pump motor plate Motor Pump motor plate
A E
C F
D G
COMPLIANCE WITH EUROPEAN DIRECTIVE RoHS 2011/65/UE
CONFORME DIRECTIVE EUROPEENNE RoHS 2015/863/UE
Surface protection
Machining
Leybold France, All rights reserved. ( c ) 2016
28/11/2017
Review
F.MARTIN
Design
Review
28/11/2017
F.MESANA
Date
Name
ECR No.
Version
Drawing-No.
Part-No.
of
TID
Sheet
Designation
Basic Material
Weight [kg]
Semi Finished Product
Scale
Format
Product
SV16 D
119846
300704922
000
6528240
1
1
STICKER MOTOR 1PH SV16D - LOW VOLTAGE
ETIQ. MOTEUR 1PH SV16D - BASSE TENSION
A4
A0
Motor 1 PH
Cp: 270-324µF 125VAC
Cd: 50µF 280VAC
IP20 cl.F 40°C amb S1 UN±10%
V
Hz
min-1
Kw
Cos φ
A
100
50
1440
0.66
0.9
10
100-120
60
1730
0.66
0.95
9
MATIERE :
Plaque aluminium demi-dur 99,5% Ep:0.35 - 4 coins
vifs
Adhesif 3M 468
Texte , cadre : noir brillant
Fond : aluminium MILL FINISH
IMPRESSION:
Obtenue par oxydation, résistant aux solvants
Police : Arial hauteur caractère mini 1.5 mm
MATERIAL:
Aluminium plate Hardness-Half 99,5% Tn : 0.35 – 4
corner
Adhesive 3M 468
Text, Frame : Brighting black
Bottom: aluminium MILL FINISH
Printing:
With oxidation, solvent resistant
Font: Arial minimal height 1.5 mm
35
6528240
63

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Description
1.5 Accessories
Item Designation Connections Part No
1Connecting piece (three piece)* G1/2 711 18 020
2Screw-in nipple* G1/2-DN 16 KF 711 18 120
3Centering ring DN 16 KF 183 26
4Clamping ring DN 16 KF 183 41
5Hose connection DN 16 KF-25 mm 711 18 300
6Hose connection* G1/2-25 mm 711 18 011
7PVC hose 25 mm 711 18 323
8 T-piece G1/2 711 18 250
11 Ball valve G1/2 711 30 113
12 Spring vacuum meter G1/2 951 92
13 Elbow 90° G1/2 711 18 210
14 Dust filter F 16/25
with paper cartridge
Spare cartridge (paper)
with metal cartridge
Spare cartridge (metal)
with active-charcoal cartridge
Spare cartridge (active-charcoal)
G1/2 951 50
710 40 762
711 27 093
710 65 813
711 27 092
710 65 713
* with NBR O-ring
Separator SL 2 951 38
Exhaust filter overpressure manometer 951 93
Fig. 5 Accessories

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Description
List of single phase power cords
Part No. Plug pump side Plug mains side Length
971443450 C13 Euro / Schuko 16 A 2 m
EK6508756 C13 NEMA 6-15P 250 V 2 m
9714434GB C13 UK plug 13 A 2 m
9714434CH C13 Swiss plug 10 A 2 m
9714434WW C13 w/o 2 m
E6500255 C13 C14 2.5 m
1.6 Lubricants
The SOGEVAC SV 16 D(I) and SV 25 D(I) should be run with LVO120 or an
equivalent oil approved by Leybold that meets these requirements:
■low vapor pressure, when at high temperatures;
■flat viscosity curve;
■minimum water content and absorption;
■good lubricating properties and
■resistant to aging under mechanical strain.
When using other oil brands, employ lowdoped, non detergent mineral oils of
viscosity class ISO VG 32.
Using the other special-grade lubricants for specific applications is possible.
Please consult Leybold.
Only use lubricants which have been fully qualified by Leybold.
Pump oil LVO 120 Part No.
2 liters L12002
5 liters L12005
20 liters L12020
Pump oil LVO 700 Part No.
1 l L70001 (x2)

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Transport and Storing
2 Transport and Storing
Pumps which have been filled with operating agent must only be moved in
the upright position (horizontally). The angle of slope may not be over 10°
max. Otherwise oil may escape. Avoid any other orientations while moving
the pump.
Use only lifting devices appropriated to the pump weight. Check name plate.
Do not use other pump elements than the lifting lugs as handles.
Check the pump for the presence of any oil leaks, because there is the
danger that someone may slip on the oil which has leaked from the pump.
Only use the lifting lugs which are provided on the pump to lift the pump with
the specified lifting devices.
Make sure that these have been installed safety. Use suitable lifting
equipment. Make sure that all safety regulations are observed.
Storage temperature: - 15°C to + 50°C
Until the pump is put back into service once more, the pump should be
stored in a dry place, preferably at room temperature (20 °C). Before taking
the pump out of service, it should be properly disconnected from the vacuum
system, purged with dry nitrogen and the oil should be exchanged too. The
inlet and exhaust ports of the pump must be blanked off using the shipping
seals which are included upon delivery of the pump. The gas ballast must be
closed and if the pump is to be shelved for a longer period of time it should
be sealed in a plastic bag together with a desiccant (Silicagel).
If the pump has been shelved for over one year, standard maintenance must
be run and the oil must be exchanged too before the pump is put into
service once more. We recommend that you contact the service from
Leybold.
WARNING

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Installation
3 Installation
The standard pump is not suitable for installation in explosion hazard areas.
Please contact us, when you are planning such an application. Before install-
ing the pump you must reliably disconnect it from the electrical power supply
and prevent the pump from running up inadvertently. The pump must only be
installed by suitably qualified and trained personnel. Only install the pump
indoor.
Observe all safety regulations.
It is essential to observe the following instructions step by step to ensure
safe start-up. Start-up may only be conducted by trained specialists.
3.1 Setting up
The pump can be set up on any flat, horizontal surface on its rubber
supports.
Under the pump are threaded bores M6 for securing the pump or screwing in
vibration absorbers (extras).
Install the pump horizontally for a correct oil level reading in the oil sight glass.
The pump’s ambient temperature should be between 12°C (55°F) and 40°C
(104°F).
To ensure adequate cooling of the pump leave space at the air intake and
exhaust points at least 50 mm on both pump sides and min 100 mm above
it. Also ensure that there is enough space for changing the exhaust filter.
Make sure to keep the air intake of the motor clean.
The pump must be kept clean (no dust deposit).
The main air flow for cooling the pump passes between the pump and the
baseplate. The air inlets and outlets must not be obstructed.
On request the SOGEVAC SV 16/25 D pumps can be supplied with an
additional water cooling.
If the pump is enclosed in a machine, the below air flow is to be respected.
WARNING
90 m3/h

20 300359027_002_C2 - 05/2020 - © Leybold
Installation
3.2 Connection to system
3.2.1 Intake Side
Remove the protective cap from the intake orifice.
The SV 16/25 D have a 1/2“ internally-threaded connection, the SV 16/25 DI
a KF flange connection. Using suitable connecting pieces (see Section 1.5),
the pump can be connected to the vacuum system.
For the SV 16/25 D, adaptation to a KF flange connection is also possible.
For an ISO-KF flange connection, a clamping ring and a centering ring with
associated O-ring are always needed. You can connect a gauge or a venting
valve to a T-piece.
The cross-section of the intake line should be at least the same as that of the
intake port. If the intake line is too narrow, it reduces the pumping speed. We
recommend appyling LOCTITE® 567, 572 or 577 Teflon tape to the screwed
unions so that they are vacuum-tight.
It is recommended to install a dust filter horizontally. This ensures that when
removing the filter no particles fall into the intake port.
For pumping vapors, we recommend that condensate traps be installed on
the intake and exhaust sides (see Section 1.5).
No particles or liquids may enter in the pump.
The pump should be connected to inlet line without any tension.
Use flex lines or pipe unions in your inlet and exhaust lines so they can be
easily removed for pump maintenance.
Type of materials used for mounting of canalisations should take care of
pumped gases. It is the same for its tightness.
The maximum pressure at the inlet may not exceed atmospheric pressure
(about 1013mbar). Never operate the pump in the presence of over pres-
sures at its intake.
3.2.2 Exhaust Side
The plug is to be screwed into the exhaust of the pump. This plug allows
exhaust gases to pass through it, while preventing particles from entering the
pump. The plug should be descarded only if the pump is connected to an
exhaust line.
The SOGEVAC SV 16 D(I) and SV 25 D(I) have integrated exhaust filters
which, even at a high gas throughput, trap over 99% of oil mist and
guarantee exhaust gas free of oil. If the exhaust filters are clogged, a pressure
relief valve opens at 1.5 bar, absolute (7 psid), and the filters are bypassed.
As a result, the proportion of oil in the exhaust gas as well as the pump oil
consumption rise. Installing new exhaust filters corrects this problem (See
Section 5.5).
Check in the individual case whether an exhaust line is necessary and/or
prescribed. Volatile substances can pass through the filter.
An exhaust line is always necessary if the exhaust gases are dangerous.
WARNING