LEYBOLD SOGEVAC SV300 B User manual

Part Numbers
960 700 to 960 703
960 706 to 960 708
960 711 to 960 713
960 716 to 960 718
960722V to 960732V
960722FP to 960732FP
and their variants
SOGEVAC
SV300 B / SV320 B
Single-stage, oil-sealed
Rotary Vane Pump
Operating Instructions 300270042_002_C2
and Spare Parts list

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Page
Contents
Important Safety Information 3
1 Description 4
1.1 Design and function 4
1.2 Standard Specification 5
1.3 Technical Data 6
1.4 Connection fittings 15
1.5 Accessories 16
1.6 Consumables 17
1.7 Lubricants & grease 17
1.8 Manipulation and stock 18
2 Operation 18
2.1 Installation 18
2.2 Connection to system 19
2.3 Electrical Connections 21
2.4 Start-up 23
2.5 Operation 23
2.6 Shutdown 25
2.7 Pump Ultimate Pressure 26
3 Maintenance 27
3.1 Maintenance Schedule 28
3.2 Checking the Oil 28
3.3 Oil Change, Replacing the Oil Filter 29
3.4 Cleaning the Dirt Trap 30
3.5 Checking the Anti-Suckback Valve 30
3.6 Cleaning the Gas Ballast Intake Filter 31
3.7 Disassembly of electrical motor 31
3.8 Radiator cleaning 31
3.9 Exhaust filter exchange 31
3.10 Heat exchanger cleaning 32
4 Troubleshooting 33
EU Declaration of Conformity 34
Spare parts list 35

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Warning
Warning
Warning
Caution
Notes
Figures
Leybold Service
Warning
Important Safety Information
It is mandatory that these operating instructions be read and understood
prior to the vacuum pump installation and start-up.
The SOGEVAC vacuum pumps have been manufactured according to the
newest technical standards and safety regulations. If not installed properly or
not used as directed, dangerous situations or damages might occur.
Under certain operating conditions, dangerous situations may occur when
running the vacuum pump. If this happens, please contact our local office.
Indicate procedures that must be strictly observed to prevent hazards to per-
sons.
Indicate procedures that must be strictly observed to prevent damage to, or
destruction of the appliance.
The references to figures, e. g. (2/10) consist of the Fig. No. and the item No.
in that order.
We reserve the right to alter the design or any data given in these Operating
Instructions.
When working on the pump system, always observe the Operating
Instructions. Disconnect the unit from the power supply before starting any
work. Take appropriate precautions to ensure that the pump cannot start.
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.
Observe all safety regulations ! Take adequate safety precautions prior to
opening the intake or exhaust port.
If you send a pump to Leybold, indicate whether the pump is free of sub-
stances damaging to health or whether it is contaminated. If it is contamina-
ted also indicate the nature of hazard.
For this you must use the form we have prepared for this purpose.
This form is available from
www.leybold.com —> Downloads —> Download Documents.
Please attach this form to the pump, or enclose it with it. This Declaration is
required to meet the law and to protect our personnel.
Leybold will return any pump received without a "Declaration of
Contamination" to the sender's address.
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.
Safety Information

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1 Description
1.1 Design and function
The SOGEVAC are single- stage, oil-sealed rotary vane pumps. The anti-
suckback valve, gas ballast valve (optional), exhaust filter, oil return circuit and
oil cooling oil are integrated functional elements. The pumps are driven by a
directly flanged motor.
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 gas through the intake port. The gas passes through the dirt trap and
the open anti-suckback 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.
At slightly above atmospheric pressure 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
oil case by deflection. Then fine filtering occurs in the exhaust filter elements.
The proportion of oil in the exhaust gas is thus reduced below the visibility
threshold (over 99 % entrapment rate).
Oil trapped in the exhaust filters is returned to the inlet chamber via an oil
return transfer. To prevent gas flowing at atmospheric pressure from the oil
reservoir into the intake port, the oil return line is controlled by a float valve.
The oil cycle is maintained by the pressure difference existing between the oil
case (pressure above or equal to atmospheric pressure) and the intake port
(pressure below atmospheric pressure).The ball bearings are greased for 30
000 hours.
A fan running on the pump shaft generates the necessary cooling air. The oil
cools down through a radiator.
Water cooled pumps with an oil-water heat exchanger and thermostatic valve
are also available (as specific variants).
By opening the gas ballast valve, a controlled amount of air so called «gas
ballast» is admitted into the pump chamber. This gas ballast prevents con-
densation (up to the limit of water vapor tolerance specified in the Technical
Data) when pumping condensable gases or vapors.
There are different types of gas ballast :
- small gas ballast ( 4 m3/h)
- standard gas ballast ( 7.5 m3/h)
- large gas ballast ( 15 m3/h)
- gas ballast with electromagnetical valve ( 10 m3/h) - See § 2.5.2
On pumps supplied without gas ballast valve, the valve can be retrofitted.
The gas ballast flows are indicative and valid at ultimate pressure.
Description

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Warning
Caution
Unintentional venting of the vacuum chamber as well as oil suckback when
shutting down the pump are prevented by the integrated anti suck-back
valve .
In applications where an oil suckback must be avoided by all means, it is
recommended to install a dedicated valve.
1.1.1 Range of use
SOGEVAC pumps are designed for pumping of inert gases in the range of
rough vacuum, between atmospheric pressure and ultimate pressure of the
pump.
SOGEVAC pumps are not designed for pumping of agressive, corrosive,
flammable or explosive gases. By presence of agressive, flammable, corrosi-
ve or explosive gases, contact Leybold Vacuum. These pumps are not desi-
gned for working in flammable or explosive environment.
In case of doubt, contact Leybold Vacuum for the ATEX pump range.
The pumps are not suitable for pumping liquids or media which contain dust.
Corresponding protective measures must be introduced.
In case of doubt, contact Leybold.
Before pumping greater than atmospheric concentrations of oxygen (> 20 %)
or other highly reactive gases, the pump must be modified, degreased and a
special oil (such as PFPE) must be used
Take adequate safety precautions. Contact Leybold for important safety
instructions.
1.2 Standard Specification
The pump is supplied with drive motor in ready-to-use condition. It is sup-
plied with mineral oil, which is filled in.
Specific variants are delivered with different oils. In any case, the oil type is
indicated on the pump. No warranty claims could be accepted with use of
another oil than specified.
The connection ports are blanked off by plastic protective caps.
Take these caps away before turning on the pump.
Description

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SV300 B 50Hz 60Hz
Nominal speed 1) m3.h-1 280 340
Pumping speed 1) m3.h-1 240 290
Ultimate partial pressure without gas ballast mbar ≤ 8·10-2 ≤ 8·10-2
Ultimate total pressure with small gas ballast 4 Nm3/h mbar ≤ 0.5 ≤ 0.5
Ultimate total pressure with standard gas ballast 7.5 Nm3/h
also for EM gas ballast 10 Nm3/h mbar ≤ 0.7 ≤ 0.7
Ultimate total pressure with big gas ballast 15 Nm3/h mbar ≤ 2.0 ≤ 2.0
Ultimate total pressure with two big gas ballasts 28 Nm3/h mbar ≤ 3.0 ≤ 3.0
Water vapour tolerance with small gas ballast 4 Nm3/h mbar 4
with turbine 220 mm
5
with turbine 220 mm
Water vapour capacity with small gas ballast 4 Nm3/h kg.h-1 0,4
with turbine 220 mm
0,6
with turbine 220 mm
Water vapour tolerance with standard gas ballast 7.5 Nm3/h
also for EM gas ballast 10 Nm3/h mbar
10
with turbine 220 mm
40
with turbine 150 mm
12
with turbine 220 mm
50
with turbine 150 mm
Water vapour capacity with standard gas ballast 7.5 Nm3/h
also for EM gas ballast 10 Nm3/h kg.h-1
1,3
with turbine 220 mm
6,0
with turbine 150 mm
1,8
with turbine 220 mm
8,0
with turbine 150 mm
Water vapour tolerance with big gas ballast 15 Nm3/h mbar 70
with turbine 150 mm
70
with turbine 150 mm
Water vapour capacity with big gas ballast 15 Nm3/h kg.h-1 11
with turbine 150 mm
14
with turbine 150 mm
Water vapour tolerance with two big gas ballasts 28 Nm3/h mbar 95
with turbine 150 mm
95
with turbine 150 mm
Water vapour capacity with two big gas ballasts 28 Nm3/h kg.h-1 15
with turbine 150 mm
17
with turbine 150 mm
Noise level 2) dB(A) 72 76
Leak rate mbar.l.s-1 ≤ 1.10-3 ≤ 1.10-3
Mains voltage (std) - for other voltages please contact Leybold V See
Ordering data
Motor power kW See Ordering data
Type of protection IP55 IP55
Rated rotational speed min.-1 1450 1750
Weight (with oil filling) kg 200 200
Oil capacity (min./max.) l 8,5/11,5 8,5/11,5
Intake connection G2 G2
NPT2 3)nN
Exhaust connection G2 G2
NPT2 3)
1.3 Technical Data
1) according to DIN28400 and following numbers, with standard gas ballast
2) operated at ultimate pressure without gas ballast, free-field measurements at a distance of 1m
3) please contact Leybold
Description

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SV320 B 50Hz 60Hz
Nominal speed 1) m3.h-1 330 385
Pumping speed 1) m3.h-1 284 330
Ultimate total pressure without gas ballast 1) mbar ≤ 0.08 ≤ 0.08
Ultimate total pressure with standard gas ballast 1) mbar ≤ 0.7 ≤ 0.7
Ambient temperature 10 ... 50 °C
Water vapour tolerance with standard gas ballast 1) mbar 10 12
Water vapour tolerance with standard gas ballast 1) kg.h-1 1.3 1.8
Noise level 2) dB(A) 72 73
Motor voltage V 220-240 / 380-415
V ± 10 %
440-460
V ± 10 %, 60 Hz
Motor power kW 7.5
Net weight (with oil filling) kg 211
Intake connection G2" BSP
for NPT use adapter P/N 71231973
Exhaust connection G2" BSP
for NPT use adapter P/N 71231973
Other data as per SV300 B GAET
1) to DIN 28400 and following numbers, with standard gas ballast & 220 mm turbine
2) operated at the ultimate pressure without gas ballast, free-field measurement at a distance of 1 m
Description
mbar (millibar) torr inches Hg
vacuum
1lb = 0.453 kg 1013 760 0
1 qt = 0.946 l 400 300 18.12
1 hp = 0.735 kW 133 100 25.98
1 inch = 25.4 mm 4 3 29.80
1 r.p.m. = 1 min - 1 0,75 29.89
0,1 0,75 29.92
1 atm (atmosphere) = 1013 mbar
1 Pa (pascal) = 0.01 mbar =10-2 mbar
1 bar = 1000 mbar
1 torr = 1.33 mbar
Different pressure units Different pumping speed units
m3·h-1 l·s-1 cfm
m3·h-1 = m3/h 1 0.278 0.589
I·s-1 = I/s 3.60 1 2.12
cfm (cubic feet per
minute)
1.699 0.472 1
Example : 1m3·h-1 = 0.589 cfm
Note : the nominal pumping speed of a pump at 60Hz is
20% higher than at 50Hz
Conversion factors
These values are valid for the standard variants and with the use of the recommended Leybold oils.

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Ordering data Ref. No. SV300 B
Pump with three-phase motor CEI w/o gas ballast
230 V/400 V, +/-10% , 50 Hz, 5.5 kW
460 V, +/-10% , 60Hz, 6.3 kW
960 700
Pump with three-phase motor CEI and integrated gas ballast valve
230 V/400 V, +/-10% , 50 Hz, 5.5 kW
460 V, +/-10% , 60Hz, 6.3 kW
960 702
Pump with three-phase motor NEMA and integrated gas ballast
208V +/-10% and 230/460 +/-10%, 60Hz, 10 hp
400V +/-10% 50Hz, 10 hp
960 707
Pump with three-phase motor JIS and integrated gas ballast valve
200V +10% -15%, 50/60Hz, 7.5 kW
960 712
Pump with wide range motor and integrated gas ballast valve
200V -15% ... 230V +10% / 380 ... 400 V +/-10%, 50Hz, 5.5 kW
200V -15% ... 230V +10% / 380 ... 400 V +/-10% & 460 +/-10%, 60Hz, 6.6 kW
960 717
Other gasballast variants available. Please contact us.
Ordering data Ref. No. SV320 B
Pump with three-phase motor IEC and integrated gas ballast valve, air cooled, mineral oil
230 V/400 V, +/-10% , 50 Hz, 7.5 kW
460 V, +/-10% , 60Hz, 7.5 kW
960 722V
Pump with three-phase motor IEC and integrated gas ballast valve, water cooled, mineral oil
230 V/400 V, +/-10% , 50 Hz, 7.5 kW
460 V, +/-10% , 60Hz, 7.5 kW
960 722V2002
Pump with wide range motor and integrated gas ballast valve, air cooled, mineral oil
200V -15% ... 230V +10% / 380 ... 400 V +/-10%, 50Hz, 6.0 kW
200V -15% ... 230V +10% / 380 ... 400 V +/-10% & 460 +/-10%, 60Hz, 7.2 kW
960 732V
Pump with wide range motor and integrated gas ballast valve, water cooled, mineral oil
200V -15% ... 230V +10% / 380 ... 400 V +/-10%, 50Hz, 6.0 kW
200V -15% ... 230V +10% / 380 ... 400 V +/-10% & 460 +/-10%, 60Hz, 7.2 kW
960 732V2002
Pump with three-phase motor IEC and integrated gas ballast valve, air cooled, food grade oil
230 V/400 V, +/-10% , 50 Hz, 7.5 kW
460 V, +/-10% , 60Hz, 7.5 kW
960 722FP
Pump with three-phase motor IEC and integrated gas ballast valve, water cooled, food grade oil
230 V/400 V, +/-10% , 50 Hz, 7.5 kW
460 V, +/-10% , 60Hz, 7.5 kW
960 722FP2002
Other gasballast variants available. Please contact us.
Description

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WATER COOLING
WATER QUALITY
TH(°F)
0°
CORROSION
(WATER TOO SOFT)
4° 8° 12° 20°
CARBONAT CONTENT
PPm
0
CORROSION
(AGRESSIVE WATER)
30 90 160 300
PH
CORROSION
(AGGRESSIVE WATER)
5 7.5
PRESSURE OF WATER NETWORK : 2 Bar MINI / 8 Bar MAXI
MINIMUM WATER SUPPLY : 600 L/H FOR WATER TEMPERATURE 15°C
VALVE REGULATION ON 2 FOR WARM AMBIANCES 40°C
MAX . WATER TEMPERATURE : 30°C
SERVICE AREA INCRUSTING WATER
(DEPOSIT OF SCALE
SERVICE
AREA
INCRUSTING
WATER VERY INCRUSTING
WATER
SERVICE AREA INCRUSTING WATER
Description

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Fig. 1a
1115 1115 1115
1145
Description
SV300 B

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Description
Fig. 1b
SV300 B H2O

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Description
Fig. 1c
SV320 B

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Description
without gas ballast with gas ballast
at 60Hz
mbar (millibar) torr inches Hg
vacuum
1lb = 0.453 kg 1013 760 0
1 qt = 0.946 l 400 300 18.12
1 hp = 0.735 kW 133 100 25.98
1 inch = 25.4 mm 4 3 29.80
1 r.p.m. = 1 min - 1 0,75 29.89
0,1 0,75 29.92
1 atm (atmosphere) = 1013 mbar
1 Pa (pascal) = 0.01 mbar =10-2 mbar
1 bar = 1000 mbar
1 torr = 1.33 mbar
Different pressure units Different pumping speed units
m3.h-1 l.s-1 cfm
m3. h-1 = m3/h 1 1 0.278 0.589
I.s-1 = I/s 3.60 1 2.12
cfm (cubic feet per
minute)
1.699 0.472 1
Example : 1m3.h-1 = 0.589 cfm
Note : the nominal pumping speed of a pump at 60Hz is
20% higher than at 50Hz
Conversion factors
at 50Hz
1
10
100
1000
0,01 0,1 1 10 100 1000
Pressure (mbar)
Pumping speed (m3/h)
60 Hz
GB 7,5 m3/h
1
10
100
1000
0,01 0,1 1 10 100 1000
Pressure (mbar)
Pumping speed (m3/h)
50 Hz
GB 7,5 m3/h
Fig. 2a
60Hz
Nominal speed 1) cfm 200
Pumping speed 1) cfm 171
Ultimate partial pressure without gas ballast Torr 6.10-2
Ultimate total pressure with gas ballast Torrr 0.5
Water vapour tolerance with standard gas ballast standard1) Torr ≤ 30
Motor power hp 10.5
Rated rotational speed rpm 1750
Weight (with oil filling) lb 430
Oil capacity (min./max.) qt 9/12.2
Intake connection NPT (F) inches NPT2
Exhaust connection NPT (F) inches NPT2
SV300 B

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Sept. 2018 GA ET SV 320 B 5 / 5
Pumping speed curves 50 Hz
Saugvermögenskurven 50 Hz
Courbes de débit 50 Hz
without gas ballast with gas ballast
at 60Hzat 50Hz
Sept. 2018 GA ET SV 320 B 6 / 6
Pumping speed curves 60 Hz
Saugvermögenskurven 60 Hz
Courbes de débit 60 Hz
Fig. 2b
Description

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Item Description Size Cat. Nr.
1 Union coupling + seal G2 F/M 711 18 025
2 Nipple G2 M/M - 150 mm
long
711 18 035
3 Threaded flange adapter G2 M - DN 63 ISO-K 711 18 126
4 Centering ring 63 ISO-K AL/NBR 268 07
5 Set of 4 clamps for M10 x 24 267 01
ISO-K flanges
6 Adapter for tubing G2 DN 50 711 18 015
7 PVC tubing 50 mm, 1 m long 711 18 325
8 Adapter for tubing G2 DN 60 711 18 016
9 PVC tubing 60 mm, 1 m long 711 18 326
10 Right-angle bend 90° 63 ISO K 887 25
11 Dust filter, paper
Dust filter, charcoal
Dust filter metal
Dust filter polyester
63 ISO K 951 68
711 27 125
711 27 126
711 27 127
12 Ball valve G2 F/F 711 30 107
13 Tee reducer bush G2-G2-G1/2 F/F/F 711 18 265
14 Elbow 90° G2 F/F 711 18 215
15 Dust filter, paper
Dust filter, charcoal
Dust filter, metal
Dust filter polyester
G2 M/F 951 65
711 27 122
711 27 123
711 27 124
16 Vacuum gauge G1/2 M 951 92
17 Ball valve G1/2 M/F 711 30 113
18 Threaded flange adapter G1/2 M - DN 16 KF 711 18 120
21 Condensate Trap G2 F -G2 F 951 44
Fig. 3
1.4 Connection fittings
Description

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Description
1.5 Accessories
Description Size Cat. Nr.
Oil filter by-pass 712 30 570
Oil drain tap G" ¾ 711 30 114
Gas ballast kit manual ("small", "standard",
"big") 9 714 64 130
Gas ballast standard with EM valve 24 V DC
SV300 B (retrofit kit)
with end-plate
without end-plate
9714 65 380 *
9714 65 680 *
Exhaust filter gauge 951 94
Exhaust filter overpressure switch 712 22 360 *
Oil level monitor (only with all option oil casing)
712 21 992V *
or
9714 58 110 *
Thermal switch (105°C) 9 714 63 930
PT100 9 714 64 020
Adapter Roots 500 9 714 63 880
Adapter Roots 1000 9 714 63 890
Base frame for pump only 711 19 208
Base frame for Roots direct mounting 9 714 56 590
Water cooling with thermostatic valve
(only with all option oil casing) EK971449111 *
Turbine kit 150 mm EK6503195
* Please consult us for retrofit. Our Service can carry out these
upgrades.
Stability of pump is insured with accessories of Leybold; moun-
ting of any other accessory will engage the responsibility of user
concerning stability of pump.

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Description
1.6 Consumables
Description Size Cat.Nr.
Oil filter standard EK96006
Exhaust filter 9 714 31 120
1.7 Lubricants & grease
Unless otherwise specified on the pump, we recommend to run the
Sogevac pumps with Leybonol from Leybold Vacuum which meets following
requirements and is approved by Leybold Vacuum:
- low vapor pressure, even at high temperatures ;
- flat viscosity curve ;
- minimum water content and absorption ;
- good lubricating properties ;
- resistant to aging under mechanical strain.
If you use a non-approved oil, we cannot guarantee that our pumps will
meet their operating specifications (ultimate pressure, pumping speed, noise,
operating temperature, etc). However, the warranty is voided only if the
nonapproved oil adversely affects the operation or reliability of the pump.
When using other oil brands, employ nondetergent mineral oils of viscosity
class ISO VG68 to ISO VG 100.
Use of other special-grade lubricants for specific applications is possible.
Please consult us.
Only use lubricants and grease which have been fully qualified by Leybold.
Pump oil Ref. No
5 liters mineral oil L13005
20 liters mineral oil L13020
200 liters mineral oil L13099
20 liters Food grade oil L15020

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1.8 Manipulation and stock
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 during transpor-
tation.
Check the pump for the presence of any oil leaks, because there is the dan-
ger 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.
Until the pump is put back into service again, the pump should be stored in a
dry place, preferably at room temperature (20 °C) but not below 0°C. Before
taking the pump out of service, it should be properly disconnected from the
vacuum system, purged with dry nitrogen and oil should be exchanged too.
The inlet and exhaust ports of the pump must be blanked off using the ship-
ping 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 more than one year, standard maintenance
must be run and oil must be exchanged too before the pump is put into ser-
vice again. We recommend that you contact the service from Leybold.
2 Operation
2.1 Installation
It is essential to observe the following instructions step by step to ensure a
safe start-up. Start-up may only be conducted by trained specialists.
The SOGEVACs can be set up on any flat, horizontal surface. Under the four
feet, there are metric threaded holes for securing the pump.
The oil level cannot be read properly if the pump is tilted. Pump risks to run
dry. The ambient temperature should be between 12°C (55°F) and 40°C
(104°F) depending on oil type. By modifying the pump or changing the oil
type, the pump can be run at a lower ambient temperature. Please consult
us about this.
To ensure adequate cooling of the pump, leave enough space at the air
intake and exhaust points, so as for access and maintenance. Make sure to
keep the air intake of motor clear.
Do not step on the pump.
Caution
Caution
Caution
Operation
Warning

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Operation
2.2 Connection to system
The standard pump is not suitable for installation in explosion hazard areas.
Please contact us, when you are planning such an application. Before instal-
ling 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.
Observe all safety regulations.
2.2.1 Intake Side
The pump has an internally-threaded intake flange. Using suitable connecting
elements (see Fig. 3 and Section 1.4), the pump can be connected to the
vacuum system. The cross-section of the intake line should be at least the
same as the intake port. If the intake line is too narrow, it reduces the pum-
ping speed. We recommend to apply either LOCTITE or TEFLON tape to the
screwed unions so that they are vacuum-tight (especially if gases are dange-
rous).
- Pump should be connected to inlet line without any tension. Use flex lines
or pipe unions in your inlet and exhaust lines so that they can be easily remo-
ved for pump maintenance.
- The maximum pressure at the inlet may not exceed atmospheric pressure
(about 1013 mbar). Never operate the pump in the presence of over pressu-
res at its intake.
- Type of materials used for mounting of canalisations should take care of
pumped gases. It is the same for its tightness.
If the process gas contains dust or particles, it is absolutely essential to install
a dust filter in addition to the dust trap supplied (see Section 1.4). We recom-
mend to install the dust filter horizontally using the T-piece (3/13) or the elbow
(3/14). This ensures that when removing the filter, no particle falls into the
intake port.
You have a choice of four cartridges for the optional inlet filters. The metal
cartridge prevents solid particles such as paper or plastics from entering
the pump ; the paper and polyester cartridges remove small particles such
as dust and powder down to one micron ; the activated carbon cartridge
absorbs chemical vapors of acids, solvents, etc. If the carbon cartridge was
stored in a damp place, bake it for 2 hours at 212°F (100°C) before use.
When pumping vapors, we recommend to install condensate traps or con-
densers on the intake side (see Section 1.4).
By pumping of dangerous gases, inlet line must be tight.
No particles or liquids may enter in the pump.
Warning

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Warning
Warning
Operation
Warning
2.2.2 Exhaust Side
The SOGEVACs have integrated exhaust filters which, even at a high gas
throughput, trap the oil mist and guarantee exhaust gas free of oil mist. If
the exhaust filters are clogged, pressure relief valve opens and the filters are
bypassed. As a result, the proportion of oil in the exhaust gas as well as the
pump’s oil consumption rise. Installing new exhaust filters will correct this
problem. (See Section 3.9)
This situation must be resolved by changing the exhaust filters. It is under
utiliser’s responsability to assure maintenance on materiel to avoid any tres-
passement of the limits autorised by regulations.
Check in the individual case whether an exhaust line is necessary and/or
prescribed. Volatile substances can pass through the filter. Depending on the
processed gas, we recommend to connect an exhaust line ; this is always
necessary when the exhaust gases are dangerous.
Observe the safety precautions that apply to your application and process
gases. The pump’s exhaust port also has an internal thread (ET3/18). A hose
can be connected via a suitable screw-in nipple (see Fig. 3 and Section 1.4).
The cross-section of the exhaust line should be at least the same as the
pump’s exhaust port. If the exhaust line is too narrow, overpressure may
occur in the pump.
Before installing the exhaust line, remove the exhaust-flange plate and ensu-
re that the exhaust demister(s) are secured tightly in place. They sometimes
loosen during shipping and installation. A loose demister results in exhaust
smoke during start-up and operation.
Install the exhaust line with a downward slope to prevent condensate from
flowing back into the pump. If this is not possible, we strongly recommend to
install a condensate trap (see Section 1.5). if several pumps are connected to
one exhaust line, ensure an adequate cross-section and a non-return valve at
the exhaust of each pump.
Never operate the pump with a blocked or restricted exhaust line. Before
start-up ensure, that any blinds or similar shut-off devices in the exhaust line
on the pressure side are opened and that the exhaust line is not obstructed.
Such restrictions reduce the pumping speed, increase the temperature, and
could overload the motor or cause a dangerous overpressure in the pump.
Excessive pressure in the pump could damage the seals, blow out the sight
glass, or destroy the pump housing. In addition to this explosion hazard,
excessive backpressure can result in hazardous process gases leaking out of
the pump. If you are purging the oil casing with inert gas, limit the inert-gas
flow. Contact Leybold for recommendations.
When pumping dangerous gases, exhaust line must be tight.
The maximum exhaust pressure must not exceed 1,15 bar (absolute).
Also reliably prevent the occurrence of any blockage in the exhaust line.
Exhaust filter, accessories and the tubing must be rated according to
the maximum throughput. The maximum throughput is equivalent to the
pumping speed of the pumps.