Page 1
Edition: 12.2009 · 610.44440.40.200 Original operating instructions · English
Supplementary instructions L-BV2, L-BV5
Supplement to instruction manual 610.44440.40.000
Devices of group II, category 2G
2BV2 060
2BV2 061
2BV2 070
2BV2 071
2BV5 110
2BV5 111
2BV5 121
2BV5 131
2BV5 161
L-Serie
L-Series
Flüssigkeitsring
Liquid Ring
Page 2
Concerning 1 Safety
Content
Concerning 1 Safety
Concerning 1
Safety.........................................2
Concerning 1.2 General safety instructions.2
Concerning 2 Correct use of the equipment ....3
Concerning 3 Technical Data ........................... 5
Concerning 3.3 Operating conditions,
normal operation............... .............................5
Concerning 5 Installation..................................5
Concerning 5.1 Installing the unit ................5
Concerning 5.2 Connecting the unit
mechanically................................................... 5
Concerning 5.2.1 Connecting the suction
and discharge branches............................5
Concerning 5.2.3 Connecting up system
components...............................................5
Concerning 5.2.4 Ancillaries ...................8
Concerning 5.3 Connecting the motor
electrically.......................................................8
Concerning 5.3.2 Operating with a
frequency converter...................................8
Concerning 7 Operation ...................................8
Concerning 9 Maintenance ..............................8
Concerning 9.1 Servicing.............................8
EU Declaration of conformity...............................9
Form for statement on safety ............................10
Concerning 1.2 General safety instructions
WARNING
The respective national accident prevention
regulations must be complied with!
WARNING
Improper handling of the system can result
in serious or even fatal injuries!
Operating manual 610.44440.40.000 as well as
this supplementary operating manual:
must be read and understood before
commencing any work on or with the unit,
must be strictly adhered to.
must be available where the unit is used.
WARNING
Improper handling of the system can result
in serious or even fatal injuries!
All work on and with the system (transport,
installation, commissioning, decommissioning,
maintenance, disposal) may only be carried out
by trained and reliable skilled staff!
© 2009 Gardner Denver Deutschland GmbH · Industriestraße 26 · 97616 Bad Neustadt · Germany
Disclosure, replication, distribution and / or editing of this document and the use and distribution of its
content are prohibited if not explicitly permitted. Violation obligates compensation. All rights reserved
in case of the issue of a patent, utility patent or design patent.
Page 3
Concerning 2 Correct use of the equipment
Concerning 2 Correct use of the
equipment
Point 2 “Intended Use” from 610.44440.40.000 is
replaced by:
This operating manual
is applicable to L-Series Liquid ring vacuum
pumps / compressors (units) types:
2BV2 060 2BV2 061 2BV2 070 2BV2 071
2BV5 110 2BV5 111 2BV5 121 2BV5 131
2BV5 161
Additional instructions Concerning explosion
protection according to Guideline 94/9/EG
contains instructions for the unit’s
transportation, installation, start-up, operation,
shut-down, storage, maintenance and
disposal,
must have been read and properly understood
by operating and maintenance staff before
beginning any work with or on the unit.
must be complied with and
must be at hand where the unit is installed.
G-BH1 units
create a vacuum or overpressure.
are used to extract, deliver and compress the
following gases / vapours:
− all dry and damp gases which are not
explosive, combustible, aggressive or
poisonous,
− air or air-vapour mixtures.
− in the case of aggressive or poisonous
gases / vapours, please consult the
manufacturer.
− the gases / vapours must be free of solid
matter.
Small quantities of light suspended matter
or liquids can be conveyed along too.
are suitable for a deep vacuum range.
are equipped with RL 94/9/EG three-phase
drive motors. For more detailed information
please consult the motor manufacturer’s
accompanying operating instructions.
are available in two constructions:
− Construction for normal requirements
− Construction for higher corrosion-resistance
and hygiene requirements (only 2BV2 070.
2BV2 071 and 2BV5 ..)
Operating and maintenance personnel
Operating and maintenance personnel for G-BH1
units must be trained and authorised for the work
to be carried out.
Work on electrical installations may only be
carried out by an electrics specialist.
An electrics specialist is someone who can
evaluate and identify potential risks for the
assigned task as a result of their technical
training, knowledge and experience as well as
knowledge about relevant regulations.
are designed for industrial plants.
are designed for continuous operation.
When operating the units, the limiting values
listed in chapter 3 operating manual
610.44440.40.000 "Technical Data" are to be
complied with.
Scope of application for units according to
Guideline 94/9/EG
Inside area of explosion prevention design
G-BH1 units are suitable for conveying
gases/vapours where a potentially explosive
atmosphere is occasionally expected to be
present.
This specification includes category 2G for the
internal space of the units.
If the specified maximum temperatures are
complied with, the units are suitable for
temperature class T4.
Surrounding area
When rating the device category, both the place
where it is installed and its internal space must
be taken into consideration.
Installing G-BH1 units for category 2G is allowed
for areas where potentially explosive gases /
vapours are expected to occur occasionally.
© Gardner Denver Deutschland GmbH 3 / 12 610.44440.40.200
Page 4
Concerning 2 Correct use of the equipment
If the specified maximum temperatures are
Foreseeable misuse
complied with, the units are suitable for
temperature class T3.
G-BH1 unit operating liquid
WARNING
The ignition temperature of the operating fluid
must be above 150°C [150.00°F].
The chosen operating liquid must comply with
the requirements / properties stated below.
It must not corrode or destroy the pump
components used.
WARNING
Monitoring of the operating liquid status before
starting up as well as monitoring of trouble-free
feeding of the operating liquid while in operation
should be built into the system.
The system must shut down if there is a failure
in the operating fluid feed.
Operating without operating fluid must be
avoided under all circumstances.
NOTE
When using operating fluids with a heat capacity
of < 3 kJ/kg K, or a boiling point which does not
lie 20 K above the input temperature, consult
the manufacturer.
The following are forbidden:
Use of the unit2BV2 060 2BV2 061 2BV2
070 2BV2 071 2BV5 110 2BV5 111
2BV5 121 2BV5 131 2BV5 161 in nonindustrial plants, unless the necessary
precautions and protective measures have
been taken at the plant, e.g. protection
against contact by children's' fingers.
Setting up and use of units in zones 0, 20, 21
and 22.
The extraction, transport and condensing
of aggressive or poisonous media unless the
units are specifically designed for such media.
to evacuate, convey and compress explosive,
inflammable, or aggressive mediums, which
could damage the slide ring seal.
To evacuate, convey and compress gases or
gas mixtures which are explosive when air is
not present, or may change the unit’s safetyrelevant material properties.
Operation with a frequency converter.
Operation of the unit at any values other than
those specified in chapter 3 “Technical data”
in the 610.44440.40.000 operating manual.
Modifications to the units are forbidden for safety
reasons.
The operator is not allowed to carry out
maintenance, servicing and repair work which
requires the machine to be dismantled.
Operating liquid type:
Normally use water with a pH-value between 6
and 9, or any other liquid compatible with the
process.
It must be free of:
− Foreign matter and objects:
− Crystalline precipitate substances
− Substances which tend to stick or jam
No precipitate substances may be produced from
the operating fluid during the sealing process.
Likewise, no substances may be used which tend
to polymerise of their own accord or when in
contact with propellant gas.
Compatibility must be checked with regards to
chemical reactions between the operating liquid
and the slide ring seal, the operating fluid and
other pump parts as well as the operating fluid
and the propellant gas.
610.44440.40.200 4 / 12 © Gardner Denver Deutschland GmbH
Page 5
Concerning 3 Technical Data
Concerning 3 Technical Data
Concerning 5.2 Connecting the unit
mechanically...............
Concerning 3.3 Operating conditions,
normal operation...............
Temperatures
Concerning 5.2.1 Connecting the suction and
discharge branches
In order to prevent overloading from throttle on
the discharge side, pressure monitoring (G2,
Temperature of the operating liquid
[°C] [°F]
max. +65 max. +149
Nominal value:
min. +5 min. +41
+15 +59
Fig. 1, page 6) must be installed on the other side
of the unit’s gas output flange. If the maximum
outlet pressure p
specified in the
2 max
610.44440.40.000 operating manual section 3.3,
“Operating conditions, normal operation” is
exceeded, the equipment must switch off.
If operating with cavitation protection, the line
must have sufficient electrical conductivity
(bleeder resistance < 10
6
Ω).
Foreign bodies must be prevented from getting
Pressures
into the pump.
If there is danger of foreign bodies getting in
Minimum suction pressure of the gas
while the pump is operating or switched off,
suitable filters must be attached.
If an explosive gas mixture should arise due to
ambient air entering the unit, the use of process
gas must be ensured for the cavitation protection.
If the unit suction pressure (p
) doesn’t stand
1 min
at a minimum of 50 mbar above the vapour
pressure (p
(=> p
1 min
≤ p
) of the operating fluid
Vapour
+ 50 mbar) or when there are
Vapour
changes in the operating conditions (media,
temperatures), consult the manufacturer.
Concerning 5 Installation
Concerning 5.2.3 Connecting up system
components...............
The built-in monitoring systems must be fully
functional independently from one another. The
systems must also remain independent if
computer-programmed controls are used.
Monitoring of continual operating liquid feed
Concerning 5.1 Installing the unit
Monitoring of continual operating liquid feed is
compulsory. Monitoring can be ensured by the
Conditions for setting up the system:
The type of protection on the drive motor must
correspond to the ambient atmosphere
requirements in accordance with guideline
94/9/EG.
The equipment and components added to the
unit must also correspond to the requirements for
device group II category in guideline 94/9/EG.
The equipment and components added to the
unit must also correspond to the requirements for
device group II category in guideline 94/9/EG,
unless they have their own ignition source. The
bleeder resistance for each installed accessory or
attached part as well as for the unit must have
6
< 10
Ohm to ground when assembled!
following alternative systems:
a) Measuring the operating liquid volume flow
(F1, Fig. 1, page 6) with suitable sensor and
analysis device. Switching commands must
operate directly on the switches.
When using a volume flow device which can
block, an additional redundant monitoring
system must be provided.
Specifications regarding failure safety as well
as calibration and servicing intervals should
be taken from the monitoring device operating
manual.
Disconnection condition:
Volume flow ≤ 50 % of the design operating
fluid flow
(see 610.44440.40.000 operating manual
section 3.3, “Operating conditions, normal
operation”)
© Gardner Denver Deutschland GmbH 5 / 12 610.44440.40.200
Page 6
Concerning 5 Installation
b) Operating fluid temperature measurement in
the drain tapping (F2, Fig. 1, page 6), or on
the unit housing (F5, Fig. 1, page 6) with
suitable temperature sensor.
Disconnection condition:
Temperature ≥ 60 °C (140 °F)
2BV2 0.. 2BV5 1..
G1
F3
G2
F5
F4
F2
The measurement and control device must be
suitable or certified to take reliable
measurements for disconnection conditions and
shut down the equipment if necessary.
The device must be certified with regard to its
point of installation in accordance with its
category.
It is recommendable to implement the monitoring
systems in accordance with EN ISO 13849.
The volume flow measurement sensor must be
suitable for the area prevailing in the measuring
point internal space.
F3
F5
F1
F4
F2
G1G2
F1
A
F1 Flow measurement in the operating fluid feed. G1 Pressure measurement in propellant gas on
suction side, to monitor suction pressure
≤ p
p
1
F2 Temperature measurement in the operating
fluid.
F3 Liquid level for operating liquid, maximum. A Drain tapping
F4 Liquid level for operating liquid, minimum. B,C Drain tapping (only 2BV5 1..)
F5 Temperature measurement on housing
Fig. 1: Position of measuring points
G2 Pressure measurement in propellant gas on
suction side as overload protection.
+ 50 mbar
vapour
B C A
Monitoring liquid level before starting up
Monitoring the liquid level before starting up is
compulsory.
Monitoring can be ensured, for instance, by
inductive proximity switches, solenoid-operated
sensors, or pressure-dependent sensors, each
combined with an analysis device.
The liquid level switches (F3, F4, Fig. 1, page 6)
should be installed in the liquid level monitoring
device (position Fig. 1 page 6).
The monitoring device sensors must be noncorrosive and certified for category 2 if there is
direct contact with the internal space.
The measurement and control device must be
suitable or certified to take reliable
measurements for disconnection conditions and
shut down the equipment if necessary.
The device must be certified with regard to its
point of installation in accordance with its
category.
It is recommendable to implement the monitoring
systems in accordance with EN ISO 13849.
The liquid level monitoring sensor must be
suitable for the area prevailing in the measuring
point internal space.
It must only be possible to turn on the unit if the
given fluid level stands between h
f min
and h
(Fig. 2, page 7).
f max
610.44440.40.200 6 / 12 © Gardner Denver Deutschland GmbH
Page 7
Concerning 5 Installation
NOTE
The liquid level monitoring device (Fig. 1,
page 6) is equipped with a shut-off valve which
opens after the unit is switched off and closes
again before starting up after the filling level has
been regulated.
If a connection between the device and the
ambient atmosphere is not possible, or
undesirable, due to the type of media used, the
line should be routed back into the equipment
behind the shut-off valve on the suction side in a
suitable way (Fig. 1. page 6).
2BV2 0.. 2BV5 1..
h
f max
h
f min
h
f max
h
f min
0
0
Type Minimum h
[mm]
f min
Maximum h
[mm]
f max
Minimum h
[inches]
f min
Maximum h
2BV2 060
75 95 2.95 3.74
2BV2 061
2BV2 070
95 120 3.74 4.72
2BV2 071
2BV5 110
116 156 4.57 6.14
2BV5 111
2BV5 121 130 170 5.12 6.69
2BV5 131 140 185 5.51 7.28
2BV5 161 175 235 6.89 9.25
Fig. 2 Operating liquid level
[inches]
f max
© Gardner Denver Deutschland GmbH 7 / 12 610.44440.40.200
Page 8
Concerning 7 Operation
Concerning 5.2.4 Ancillaries
Operating fluid separator
The 2BX1 102, 2BX2 103 und 2BX1 107
stainless steel separators do not come under
guideline 94/9/EG as they don’t have their own
ignition sources. The propellant gas and the
operating fluid must not react chemically to the
separator. The separator bleeder resistance must
have < 10
6
Ohm to ground when attached or
installed!
When a suction-side separator is used, only a
pressure-resistant construction is permitted in
accordance with guideline 97/23/EG. The
standard separator as in the catalogue must not
be used.
Check valve
The 2BY6 9-type metal check valves do not
come under guideline 94/9/EG as they don’t have
their own ignition sources. The propellant gas
and the operating fluid must not react chemically
to the check valve. The check valve bleeder
resistance must have < 10
6
Ohm to ground when
attached or installed!
Gas ejector
The 2BP5-type metal gas ejectors do not come
under guideline 94/9/EG as they don’t have their
own ignition sources. The propellant gas and the
operating fluid must not react chemically to the
gas ejector. The gas ejector bleeder resistance
must have < 10
6
Ohm to ground when attached
or installed! The gas propellant must be free of
statically rechargeable particles.
Concerning 9 Maintenance
Concerning 5.3 Connecting the motor
electrically...............
The accompanying drive motor operating manual
must be strictly adhered to:
Concerning 5.3.2 Operating with a frequency
converter
WARNING
Operating the unit with a converter is not
permitted.
Concerning 7 Operation
DANGER
If the system is shut down by a monitoring
system during operation, its cause must be
identified and the problem must be rectified
before restarting.
Do not go below the safety level required by the
device category!
Concerning 9.1 Servicing
The operator is not allowed to carry out any kind of maintenance, servicing and repair work which
requires the machine to be dismantled.
Interval Maintenance procedure
weekly Remove dust deposits from unit.
2 years or
18,000 operating hours
Ball bearings to be replaced or re-greased by service technician.
610.44440.40.200 8 / 12 © Gardner Denver Deutschland GmbH
Page 9
EU Declaration of conformity
EU Declaration of conformity
EU declaration of conformity
Manufacturer: Gardner Denver Deutschland GmbH
P.O. Box 1510
D-97605 Bad Neustadt / Saale
Responsible for documentation: Holger Krause
P.O. Box 1510
D-97605 Bad Neustadt / Saale
Designation:
L Series Liquid ring vacuum pump/ compressor
L-BV2, L-BV5
Types 2BV2 060-..D..-Z
2BV2 061-..D..-Z
2BV2 070-..D..-Z
2BV2 071-..D..-Z
2BV5 110-..D..-Z
2BV5 111-..D..-Z
2BV5 121-..D..-Z
2BV2 060-..G..-Z
2BV2 070-..G..-Z
2BV2 071-..G..-Z
2BV5 110-..G..-Z
2BV5 121-..G..-Z
2BV5 131-..D..-Z
2BV5 161-..D..-Z
The liquid ring vacuum pump/compressor described above with motor fitted as per the EC declaration of conformity
issued by Siemens complies with the following applicable Community harmonisation legislation:
94/9/EC Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of
the laws of the Member States concerning equipment and protective systems intended for use in
potentially explosive atmospheres
II 2G b c T3
2006/42/EC Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and
amending Directive 95/16/EC
The protection targets of the directive 2006/95/EC have been met
Harmonised standards applied:
EN 1012-1:1996 Compressors and vacuum pumps — Safety requirements — Part 1: Compressors
EN 1012-2:1996 Compressors and vacuum pumps — Safety requirements — Part 2: Vacuum pumps
EN 1127-1:2007 atmospheres — Explosion prevention and protection —
Part 1: Basic concepts and methodology
EN 13463-1:2001 Non-electrical equipment for potentially explosive atmospheres —
Part 1: Basic method and requirements
EN 13463-5:2003 Non-electrical equipment intended for use in potentially explosive atmospheres —
Part 5: Protection by constructional safety "c"
EN 13463-6:2005 Non-electrical equipment for use in potentially explosive atmospheres —
Part 6: Protection by control of ignition source "b"
The technical documentation is stored at the notified body DEKRA EXAM GmbH, no. 0158 under certification number
BVS 03 ATEX H/B 072/ BVS 03 ATEX H/B 073.
Bad Neustadt/Saale, 29.12.2009
(Place and date of issue)
ppa. Fred Bornschlegl
(Name and function) (Signature)
664.44440.40.200
© Gardner Denver Deutschland GmbH 9 / 12 610.44440.40.200
Page 10
Form for statement on safety
Form for statement on safety
For the safety of our employees and to comply with statutory requirements on handling substances harmful to the health and
the environment, this statement must be enclosed, fully completed, with each unit/system sent.
Without the fully completed statement, repair/disposal is not possible and delays are unavoidable!
The statement is to be completed and signed by suitably qualified, authorised personnel at the operating organisation.
In the case of shipment to Germany, the statement is to be completed in German or English.
The statement is to be attached to the outside of the packing on shipment.
If necessary, the carrier is to be informed.
1. Product designation (type):
2. Serial number (no. BN):
3. Reason for sending:
4. The unit/system
has not come into contact with hazardous substances. There will be no hazards for personnel or the environment during
repair/disposal. Continue with "6. Legally binding statement“
has come into contact with hazardous substances. Continue with "5. Information on the contamination“
5. Information on the conta mina tio n
The unit/system was used in the following application:
and has come into contact with the following classifiable substances or substances presenting a hazard to health/environment:
Trade name: Chemical designation:
Statement on health safety and on the protection of the environment
(if necessary provide more information on an additional sheet)
Hazardous
substance class:
Properties (e.g. toxic, inflammable,
caustic, radioactive):
The unit/system has been emptied in accordance with the operating instructions, flushed and cleaned externally.
Safety data sheets in accordance with the applicable regulations are enclosed ( sheet).
The following safety precautions are necessary for handling (e.g. personal protective equipment):
6. Legally binding statemen t
I herewith guarantee that the details specified are true and complete and that I, as signatory, am in a position to judge that this is
so.
We are aware that we are liable to the contractor for any damages arising from incomplete or incorrect specifications. We are
obliged to indemnify the contractor against claims for damages by third parties arising from incomplete or incorrect specifications.
We are aware that, irrespective of this statement, we are directly liable to third parties - in particular including the contractor's
employees tasked with repair/disposal.
Company/institute:
Name, position: Phone:
Street: Fax:
Post code, city:
Country: Stamp:
Date, signature:
© Gardner Denver Deutschland GmbH 610.00250.40.905
P.O. box 1510 Phone: +49 7622 392 0 E-mail: er.de@gardnerdenver.com 10.2009
97605 Bad Neustadt Fax: +49 7622 392 300 Internet: www.gd-elmorietschle.com English
610.44440.40.200 10 / 12 © Gardner Denver Deutschland GmbH
Page 11
© Gardner Denver Deutschland GmbH 11 / 12 610.44440.40.200
Page 12
Elmo Rietschle is a brand of
Gardner Denver‘s Industrial Products
Group and part of Blower Operations.
www.gd-elmorietschle.de
er.de@gardnerdenver.com
Gardner Denver
Schopfheim GmbH
Roggenbachstraße 58
79650 Schopfheim · Deutschland
Tel. +49 7622 392-0
Fax +49 7622 392-300
Gardner Denver
Deutschland GmbH
Industriestraße 26
97616 Bad Neustadt · Deutschland
Tel. +49 9771 6888-0
Fax +49 9771 6888-4000
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