LEYBOLD Sogevac Neo D Series User guide

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Sogevac®Neo D
NEO D 16
NEO D 25
NEO D 40
NEO D 65
Oil sealed rotary vane pump.
Original Instruction manual
P/N
970100V to 970102V
970200V to 970202V
970300V to 970302V
970400V to 970402V
And their variants.
Document Y26/

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Contents
Page
Important Safety Information 3
1 Description 6
1.1 Principle of operation 6
1.2 Technical characteristics 8
1.3 Ordering Information 21
1.4 Accessories 22
1.5 Spare parts 23
1.6 Lubricants 23
2Transport and Storing 24
2.1 Transport and packaging 24
2.2 Mounting orientation 26
2.3 Storage 26
3Installation 27
3.1 Installation 27
3.2 Connection to system 28
3.3 Electrical connections 29
3.4 Start-up 32
4Operation 33
4.1 Operation 33
4.2 Shutdown 35
4.3 Ultimate pump pressure 35
4.4 Taking out of use 35
5Maintenance 36
5.1 Safety Information 36
5.2 Maintenance Intervals 37
5.3 Service at Leybold facilities 37
5.4 Maintenance Work 39
6Troubleshooting 44
7 Spare parts 46
EC Conformance Declaration 48
Declaration of Contamination of Compressors 49
Vacuum Pumps and Components
Contents

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Important Safety Information
Indicates procedures that must be strictly observed to prevent hazards to
persons.
Indicates procedures that must be strictly observed to prevent damage to, or
destruction of the product.
Emphasizes additional application information and other useful information
provided within these Operating Instructions.
The Leybold SOGEVAC®Neo D have 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®Neo D must only be operated in
the proper condition and under the conditions described in the
Operating Instructions.
SOGEVAC®pumps are not designed:
■for pumping of aggressive, corrosive gases or gases mixtures ;
■for pumping of oxygen or other highly reactive gases with a greater
concentration than atmospheric concentration (>20%) ;
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.
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.
When operating pump is hot and some surfaces could reach a temperature
higher than 80°C (176°F). There is a risk of burn by touching.
Depending on the process involved, dangerous substances and oil may
escape from the pump. Take the necessary safety precautions !
When working on the pump system always observe the Operating
Instructions.
Disconnect the unit from the power supply before starting any work.
Pump must not be operated above 2000 m sea level
Warning
Caution
Note
Warning
Caution
High electric voltages! When touching parts at high electric voltages, there is
the risk of suffering severe injuries by an electric shock! Covers marked with
this symbol must only be opened by trained electricians after having reliably
deenergised (lockout/tagout) the equipment.
Always operate the pump with a properly connected protective earth con-
ductor and make sure that the motor & FC connection box are closed.
Use only the Leybold frequency converter for the pumps equipped with one.
Lay the connecting lines so that these cannot be damaged. Protect the lines
against humidity and contact with fluids. Avoid thermally stressing the lines by
unfavorable laying. Provide strain relief for the connecting lines so that the
plugs and the line connectors are not subjected to excessively high mechani-
cal stresses.
Lay electric feed lines so that there is no risk of tripping over these.
Important Safety Information

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Take appropriate precautions to insure 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.
Failure to observe the following precautions could result in damage to
the equipment!
Liquid and solid particles or dust must not enter into the pump. Install the
adequate filters, separators and/or condensers. In case of doubt consult
Leybold.
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. The pressure regulation device is
to be installed by the end-user. We recommend also to collect the pump
exhaust and to treat the gases in function of their nature.
Operating of the pump without oil or operating with incorrect direction of
rotation can destroy the pump.
Never use discarded seals. Always assemble using new seals.
Respect the instructions concerning environment protection when discarding
used oil or exhaust filters !
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.
We reserve the right to alter the design or any data given in these Operating
Instructions. The illustrations are not binding.
It is mandatory that these operating instructions be read and
understood prior to the vacuum pump installation and start-up.
We reserve the right to alter the design or any data given in these Operating
Instructions. The illustrations are not binding.
Caution : hot surface ! In normal operation, the pump surface temperature
can reach 85°C. There is a risk of burning. Switch off the pump and let it cool
down before any intervention or take appropriate precautions. It is
recommended to use an oil casing or pump touching protection at high
ambient temperatures.
As a touching protection, you can use the “Noise enclosure for SV40 BI + 65
BI FC” P/N 960331NENC. The noise enclosure is an accessory not included
in the pump delivery.
All work on a pump which is “still warm from operation” should be done only
whilst wearing protective gloves.
Handle the pump only while vented and after having let it cool down.
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 protec-
Warning
Caution
Note
Important Safety Information

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tive goggles also for protection against the oil.
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 way 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.
Do not allow the ingestion of any objects (screws, welding beads, nuts,
washers, pieces of wire, fittings etc.) through the intake port of the pump.
Objects falling into the pump can cause severe damage.
Some variants are equipped with a frequency converter giving a constant
pumping speed independently of the mains frequency and regulating the
pump power consumption. At high inlet pressures, the pump speed is
decreased.
The pump speed can be reduced to 1200 rpm (idle mode) to reduce the
power consumption w/o loss of end pressure on some pump variants. In this
idle mode, the pump inlet pressure must remain below 10 mbar
Information to user
The user's manual or instruction manual for an intentional or unintentional
radiator shall caution the user that changes or modifications not expressly
approved by the party responsible for compliance could void the user's
authority to operate the equipment.
Note : This equipment has been tested and found to comply with the limits for
a Class B, group 1 digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy
and, if not installed and used in accordance with the instruction manual, may
cause harmful interference to radio communications Operation of this equip-
ment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.

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1. Description
SOGEVAC
®
pumps are designed for pumping of inert gases in the range of
medium vacuum, between atmospheric pressure and end pressure of the
pump. When removing condensable vapors, a gas ballast valve must be
installed or opened.
1.1 Principle of operation
The SOGEVAC®Neo D are oil-sealed rotary vane pumps. The anti-suckback
valve, gas ballast valve, 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 thru 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 line.
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
casing (pressure above or equal atmospheric pressure) and the intake port
(pressure below atmospheric pressure) and by an oil pump. On part of the oil
is taken from the oil casing and flows via the oil filter to the bearing points of
the rotor and to the pump chamber. The other part of oil injected in the pump
does not run through the oil filter.
A fan running on the motor shaft generates the necessary cooling air.
Pumps depending of their P/N are equipped with a gas ballast device. If
opened, a controlled amount of air so called "gas ballast" is admitted into the
pump chamber. This gas ballast prevents condensation (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 :
- standard manual gas ballast closed, small flow & standard flow,
- EM 24 V DC gas ballast available upon request,
- permanent, available upon request,
Note
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Unintentional venting of the vacuum chamber as well as oil suck back when
shutting down the pump are prevented by the integrated anti suck back valve.
This valve is not a safety device and its correct operation & tightness can only
be assured if the valve plate & sealing zone are kept clean and in good
condition.
If all returns are to be avoided by all means, it is required to install a vacuum
safety valve on the pump suction flange. Please consult us.
Warning
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1.2 Technical characteristics Sogevac NEO D 16
NEO D 16
50 Hz 60 Hz
Nominal speed 1) m3. h
-1 19 23
Pumping speed 1) m3. h
-1 16 19
Ultimate partial pressure
without gas ballast 1)
mbar ≤8 x 10 -3 ≤8 x 10 -3
Ultimate total pressure with
standard gas ballast 1)
mbar ≤0.1 ≤0.1
Ambient temperature 12 … 40 °C
Water vapor tolerance with
standard gas ballast 1)
mbar 10 10
Water vapor tolerance with
standard gas ballast
kg.h -1
Noise level 2) dB (A) 54 54
Leak rate mbar.l.s-1 ≤1.10-3 ≤1.10-3
Rated rotational speed min. -1 1500 1800
Net weight (with oil filling) kg
Oil capacity l 1.5
Intake connection DN 25 ISO-KF
Exhaust connection DN 25 ISO-KF
1) to DIN 28400 and following numbers, with standard gas ballast
2) operated at the ultimate pressure without gas ballast, free-field measurement at a distance of 1 m
These values are valid for the standard variants and with the use of the recommended oils acc. § 1.6.
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1.2 Technical characteristics Sogevac NEO D 25
NEO D 25
50 Hz 60 Hz
Nominal speed 1) m3. h
-1 24 29
Pumping speed 1) m3. h
-1 28 34
Ultimate partial pressure
without gas ballast 1)
mbar ≤8 x 10 -3 ≤8 x 10 -3
Ultimate total pressure with
standard gas ballast 1)
mbar ≤0.1 ≤0.1
Ambient temperature 12 … 40 °C
Water vapor tolerance with
standard gas ballast 1)
mbar 10 10
Water vapor tolerance with
standard gas ballast
kg.h -1
Noise level 2) dB (A) 54 54
Leak rate mbar.l.s-1 ≤1.10-3 ≤1.10-3
Rated rotational speed min. -1 1500 1800
Net weight (with oil filling) kg
Oil capacity l 1.5
Intake connection DN 25 ISO-KF
Exhaust connection DN 25 ISO-KF
1) to DIN 28400 and following numbers, with standard gas ballast
2) operated at the ultimate pressure without gas ballast, free-field measurement at a distance of 1 m
These values are valid for the standard variants and with the use of the recommended oils acc. § 1.6.
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1.2 Technical characteristics Sogevac NEO D 40
NEO D 40
50 Hz 60 Hz
Nominal speed 1) m3. h
-1 40 48
Pumping speed 1) m3. h
-1 47 56
Ultimate partial pressure
without gas ballast 1)
mbar ≤8 x 10 -3 ≤8 x 10 -3
Ultimate total pressure with
standard gas ballast 1)
mbar ≤0.1 ≤0.1
Ambient temperature 12 … 40 °C
Water vapor tolerance with
standard gas ballast 1)
mbar 10 10
Water vapor tolerance with
standard gas ballast
kg.h -1
Noise level 2) dB (A) 57 57
Leak rate mbar.l.s-1 ≤1.10-3 ≤1.10-3
Rated rotational speed min. -1 1500 1800
Net weight (with oil filling) kg
Oil capacity l 3
Intake connection DN 40 ISO-KF
Exhaust connection DN 40 ISO-KF
1) to DIN 28400 and following numbers, with standard gas ballast
2) operated at the ultimate pressure without gas ballast, free-field measurement at a distance of 1 m
These values are valid for the standard variants and with the use of the recommended oils acc. § 1.6.
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1.2 Technical characteristics Sogevac NEO D 65
NEO D 65
50 Hz 60 Hz
Nominal speed 1) m3. h
-1 63 76
Pumping speed 1) m3. h
-1 74 89
Ultimate partial pressure
without gas ballast 1)
mbar ≤8 x 10 -3 ≤8 x 10 -3
Ultimate total pressure with
standard gas ballast 1)
mbar ≤0.1 ≤0.1
Ambient temperature 12 … 40 °C
Water vapor tolerance with
standard gas ballast 1)
mbar 10 10
Water vapor tolerance with
standard gas ballast
kg.h -1
Noise level 2) dB (A) 57 57
Leak rate mbar.l.s-1 ≤1.10-3 ≤1.10-3
Rated rotational speed min. -1 1500 1800
Net weight (with oil filling) kg
Oil capacity l 3
Intake connection DN 40 ISO-KF
Exhaust connection DN 40 ISO-KF
1) to DIN 28400 and following numbers, with standard gas ballast
2) operated at the ultimate pressure without gas ballast, free-field measurement at a distance of 1 m
These values are valid for the standard variants and with the use of the recommended oils acc. § 1.6.
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Dimensional drawing NEO D 16
Fig 1.1
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Dimensional drawing NEO D 25
Fig 1.2
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Installation drawing NEO D 25
Fig 1.2
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Dimensional drawing NEO D 40
Fig 1.3
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Dimensional drawing NEO D 65
Fig 1.4
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NEO D 16 Pumping speed curve 50 Hz
NEO D 16 Pumping speed curve 60 Hz
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NEO D 25 Pumping speed curve 50 Hz
NEO D 25 Pumping speed curve 60 Hz
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NEO D 40 Pumping speed curve 50 Hz
NEO D 40 Pumping speed curve 60 Hz
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NEO D 65 Pumping speed curve 50 Hz
NEO D 65 Pumping speed curve 60 Hz
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