AWH Tanko RT Product guide

F
OPERATING/INSTALLATION INSTRUCTIONS
(Translation)
Container cleaning device
ATEX Retractor System
TANKO®RT/TANKO®RTS
II 1/2G
Ex
IIB/IIC
T6/T6…T3
Ga/Gb
II 1G/2D
Ex
IIB/IIIC
T6/T95°C…T140°C
Ga/Db
II 1/2D
Ex
IIIC/IIIC
T60°C…T70°C/T95°C…T140°
Da/Db
II 1D/2G
Ex
IIIC/IIC
T60°C…T70°C/T6…T3
Da/Gb
BVS 10 ATEX H 006 X N3
Armaturenwerk Hötensleben GmbH
Schulstr. 5-6,
D-39393 Hötensleben, Germany
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: http://www.awh.eu ID number: 664BA030000ENX - 2020/01 Rev. 2
0044

NOTE
These instructions are an integral part of the device and must be available to operating
and maintenance personnel at all times throughout its entire life cycle. The safety
instructions contained therein must be observed.
If the device is resold, the instructions must always be passed on to the new owner.
Translation
The operating instructions must be written in an official European Community language acceptable to
the manufacturer of the machinery in which the partly completed machinery will be assembled, or to his
authorized representative. If there are any discrepancies in the translated text, the original operating
instructions (German) must be consulted for clarification, or the manufacturer must be contacted.
These instructions and all figures contained therein are protected by copyright. Any use beyond the
confines of copyright law is not permissible and liable to prosecution without the prior written approval
of the publisher. This applies in particular to reproductions, translations, microfilming, and storage and
processing in electronic systems.
© 2020 - Armaturenwerk Hötensleben GmbH. All rights reserved.

ATEX Retractor System TANKO-RT/-RTS
Contents Translation - Operating/installation instructions 2020/01 I
Contents
List of Figures ..................................................................................................................................III
List of Tables....................................................................................................................................IV
Abbreviations and Units....................................................................................................................V
1 Introduction .................................................................................................................................. 1
1.1 Means of Representation .......................................................................................................... 1
1.1.1 Explanation of Signal Words............................................................................................ 1
1.1.2 Explanation of the Warnings ........................................................................................... 2
1.1.3 Pictograms and Symbols ................................................................................................. 4
1.2 Warranty and Liability................................................................................................................. 5
1.3 Product Names and Trademarks............................................................................................... 5
1.4 Related Documents.................................................................................................................... 5
2 Safety............................................................................................................................................ 6
2.1 Intended Use............................................................................................................................... 7
2.2 Spare parts, replacement parts and accessories ..................................................................12
2.3 Duties of the Owner..................................................................................................................12
2.4 Personnel Requirements .........................................................................................................15
2.4.1 Personal Protective Equipment.....................................................................................16
2.5 Identification.............................................................................................................................17
2.5.1 Type Designation............................................................................................................17
2.5.2 Type Plate.......................................................................................................................17
2.5.3 Identification for Explosion Protection..........................................................................18
3 Design and Function................................................................................................................... 28
3.1 Design .......................................................................................................................................28
3.2 General Function Description ..................................................................................................30
3.2.1 Emergency Stop .............................................................................................................33
3.2.2 Functional Flow Chart ....................................................................................................34
3.3 Technical Data..........................................................................................................................36
3.4 Cleaning Media.........................................................................................................................44
4 Transport and Storage................................................................................................................ 49
4.1 Packaging..................................................................................................................................50
4.2 Transport...................................................................................................................................50
4.3 Storage......................................................................................................................................51
5 Installation.................................................................................................................................. 52
5.1 Safety instructions for installation...........................................................................................52
5.2 Installation ................................................................................................................................55
5.2.1 Interfaces........................................................................................................................57
5.2.2 Installation Position .......................................................................................................58
5.2.3 Installing the Device ......................................................................................................59
5.2.4 Connection of Pneumatic Actuator ...............................................................................66
6 Start-up....................................................................................................................................... 69
6.1 Safety Instructions for Start-Up ...............................................................................................69
6.2 Function Check/Trial Run ........................................................................................................74

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6.3 Switch-On Procedure ................................................................................................................75
6.4 Operation...................................................................................................................................76
7 Maintenance .............................................................................................................................. 80
7.1 Safety Instructions for Maintenance .......................................................................................80
7.2 Removal.....................................................................................................................................83
7.3 Switch-Off Procedure................................................................................................................84
7.3.1 Removing the Device .....................................................................................................85
7.4 Maintenance .............................................................................................................................89
7.4.1 Maintenance Intervals ...................................................................................................91
7.4.2 Tools and Tightening Torques .......................................................................................94
7.4.3 Replacing the O-rings, the central bearing, the piston ring and the damping ring ....95
7.4.4 Replacing the Spray Head .............................................................................................98
7.4.5 Replacing the Locking Cylinder Assembly Group .........................................................99
7.4.6 Notes on Cleaning..........................................................................................................99
7.5 Spare Parts and Customer Service....................................................................................... 101
8 Faults........................................................................................................................................ 107
8.1 Safety Instructions for Troubleshooting ............................................................................... 107
8.2 Faults and Remedial Action .................................................................................................. 109
8.3 What to do in an Emergency................................................................................................. 111
9 Putting the Device Out of Service............................................................................................. 112
9.1 Disposal.................................................................................................................................. 113
Index............................................................................................................................................ 114
Change Record ............................................................................................................................ 115
Annexes ....................................................................................................................................... 116
Notes ........................................................................................................................................... 121

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List of Figures
Figure 2.5-1: Type plate position...................................................................................................................17
Figure 2.5-2: Zone separation .......................................................................................................................18
Figure 3.1-1: General Construction...............................................................................................................28
Figure 3.1-2: Static Spray Head ....................................................................................................................29
Figure 3.2-1: Function Diagram.....................................................................................................................35
Figure 3.3-1: Diagram - Flow Rate for Rotating Spray Head........................................................................40
Figure 3.3-2: Diagram - Flow Rate for Static Spray Head ............................................................................40
Figure 3.3-3: Diagram - Range ......................................................................................................................41
Figure 3.3-4: Example Display of PA weld, Combination Adapter C3 and BioControl® ............................42
Figure 5.2-1: Device Interfaces .....................................................................................................................57
Figure 5.2-2: Self-Draining of the Device, Depending on the Installation Position....................................58
Figure 5.2-3: Installation Position for Compressed Air Disconnection .......................................................59
Figure 5.2-4: Overview of Assembly Units.....................................................................................................60
Figure 5.2-5: Combination Vessel Connector Standard Connection ..........................................................63
Figure 5.2-6: Grinding ....................................................................................................................................63
Figure 5.2-7: Container Seal..........................................................................................................................64
Figure 5.2-8: Special Connection..................................................................................................................65
Figure 5.2-9: Position of Power Cylinder Retracted Limit Switch ................................................................ 66
Figure 5.2-10: Position of Locking Cylinder Limit Switch.............................................................................67
Figure 5.2-11: Resistance thermometer position ........................................................................................68
Figure 7.3-1: Overview of Assembly Units.....................................................................................................85
Figure 7.4-1: Maintenance Points.................................................................................................................92
Figure 7.4-2: Tool for TANKO-RT/-RTS ..........................................................................................................94
Figure 7.4-3: Assembly tool 664MW01010050..........................................................................................94
Figure 7.4-4: Assembly Tools, Assembly cone (A) and Assembly Anvil (B) .................................................95
Figure 7.4-5: Replacing Consumables..........................................................................................................96
Figure 7.4-6: Overview of Assembly of Central Bearing with Assembly Cone ............................................ 97
Figure 7.4-7: Locking Pin Representation ....................................................................................................98
Figure 7.5-1: Internal Construction.............................................................................................................102

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List of Tables
Table 1.1-1: Overview of Signal Words............................................................................................................ 1
Table 2.5-1: Relationship between zones and device protection levels (EPL) ...........................................18
Table 2.5-2: Explanation of EX marking –gas..............................................................................................23
Table 2.5-3: Explanation of EX marking - dust..............................................................................................26
Table 3.3-1: General Technical Data.............................................................................................................36
Table 3.3-2: Operating Parameter, Pneumatic Side ....................................................................................37
Table 3.3-3: Operating Parameter, Hydraulic Side.......................................................................................39
Table 3.3-4: Overview of Linear Dimensions ................................................................................................42
Table 3.3-5: Weights ......................................................................................................................................43
Table 3.3-6: Connection Variants..................................................................................................................43
Table 5.2-1: Recommended Filler Materials ................................................................................................62
Table 7.4-1: Inspection and Maintenance Work ..........................................................................................93
Table 7.4-2: Wear Parts O-Rings, Central Bearing, Piston Ring and Damping Ring...................................96
Table 7.5-1: Replacement Parts List (Standard), Wear Parts, Tightening Torques................................. 104
Table 7.5-2: Pneumatic Cylinder Pipe Depending on Stroke.................................................................... 104
Table 7.5-3: Piston Rod Depending on Stroke .......................................................................................... 104
Table 7.5-4: O-Rings for Centering Adapter and Head.............................................................................. 105
Table 7.5-5: O-Rings for Process Connection [PA]..................................................................................... 105
Table 7.5-6: Centering Adapter................................................................................................................... 105
Table 7.5-7: Hydraulic Pipe Depending on Stroke and Process Connection........................................... 106
Table 7.5-8: Spray Head Overview ............................................................................................................. 106
Table 8.2-1: Operational Disruptions –Cause and Remedy .................................................................... 110

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Abbreviations and Units
Abbreviations
ATEX
ATmosphère EXplosible; Synonym for the ATEX Directive of the European Union;
comprises measures for explosion protection for explosive atmospheres
approx.
approximately
ASSY
Assembly
AU
Assembly group
AWH
Armaturenwerk Hötensleben GmbH
BetrSichV
Betriebssicherheitsverordnung (German industrial safety and health protection
ordinance); ordinance concerning health and safety when using work equipment; German
implementation of Directive 2009/104/EC of the European Parliament concerning the
minimum safety and health requirements for the use of equipment by employees at work
CIP
Cleaning in Place; a local (automated) cleaning process without dismantling plant
components. Refers to a procedure for cleaning processing plants, predominantly in
sectors with particularly critical hygiene requirements, such as the pharmaceutical
industry, food and beverage industry or biofuel plants.
DIN
Deutsches Institut für Normung e.V.; is a national standards organization in the Federal
Republic of Germany; the standards of this organization are referred to as DIN standards.
DN
DIN nominal width
EN
European Standard (Norm)
EPL
Protection level of the device (Equipment Protection Level)
etc.
and so on
FDA
Food and Drug Administration (USA food and medication monitor regulation authority)
if nec.
if necessary
IP
Individual part
ISO
International Organization for Standardization
LE
Installation dimension; corresponds to the length from the lower edge of the process
connection to the lower edge of the cleaning head.
LEX,8h
Daily noise exposition level
LPA
Emission noise pressure level at workplace
MC
Media connection
In the context of these instructions, this term describes the interface used in cleaning
technology for supplying cleaning medium from the supply line to the device.
max.
maximum
min.
minimum
NEUMO
NEUMO Armaturenfabrik-Apparatebau-Metallgießerei GmbH + Co KG
PC
Process Connection
In the context of these instructions, this colloquial term describes the interface used in
cleaning technology for the connection to the process from the device to the container.
Ra
Average roughness value (dimension for surface roughness)

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SI
Système international d'unités; the most widely used international system of units for
physical values
SN
Serial number
SW [AF]
Width across flats [wrench size]
TRBS
“Technische Regeln für Betriebssicherheit”(German technical rules for
operational reliability and safety); these rules specify the details of the
“Betriebssicherheitsverordnung”(BetrSichV = German industrial safety and health
protection ordinance) with regard to the identification and assessment of hazards and
the derivation of suitable measures.
TRGS
“Technische Regel für Gefahrstoffe”(German technical rules for hazardous materials);
these rules reflect the state of the art, occupational medicine and occupational hygiene
as well as other sound scientific knowledge for activities involving hazardous substances,
including their classification and identification.
veff
effective vibration velocity
WA
Welded assembly
WP
Wear part

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Units of Measure
The following factors given below are intended for orientation and the conversion of the SI units
to common units of measure for the American market.
bar
Unit of measure for pressure p [bar]
All pressure [bar] specifications stand for overpressure [bar o] = positive pressure [bar g],
unless expressly described otherwise (e.g. absolute pressure [bar a]).
Conversion: 1 bar = 14.50376… psi [pound-force per square inch]
°C
Unit of measure for temperature T [degrees Celsius]
Conversion from Celsius to Fahrenheit: °C 1.8 + 32 = °F [degrees Fahrenheit]
h
Unit of measure for time t [hour]
K
Unit of measurement for temperature T and temperature differences ΔT [Kelvin]
Conversion: 273.15 K = 0 °C
kg
Unit of measure for mass m [kilogram]
Conversion: 1 kg = 2.20462 … lb [Latin: libra; pound]
l/min
Unit of measure for volume flow rate V [liters per minute]
Conversion: 1 l/min = 0.06 m3/h [cubic meters per hour]
1 l/min = 0.26417… gpm (US) [gallons per minute (US)]
1 m3/h = 4.40286… gpm (US) [gallons per minute (US)]
lx
Unit of measure for luminance intensity Ev[lux]
m
Unit of measure for length l [meter]
Conversion: 1 m = 3.28083… ft [feet]
mm
Unit of measure for length l [millimeter]
Conversion: 1 mm = 1/25.40005 in [inch] = 0.03937 in [inch]
Nm
Unit of measure for moment/torque M [newton meter]
Conversion: 1 Nm = 0.737 lbft [pound-force feet]
rpm
Unit of measure for speed n [revolutions per minute]
Conversion: 1 U/min = 1 rpm [revolutions per minute]
µm
Unit of measure for length l [micrometer]
MΩ
Unit of measure for electrical resistance R [Mega Ohm = 1 million ohms]
pS/m
Unit of measure for electrical conductivity of materials κ [picosiemens per meter]

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ATEX Retractor System TANKO-RT/-RTS
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1Introduction
These operating/installation instructions (referred to hereinafter as the instructions) are a component
part of the device. They provide you with all the information required for smooth operation of the
TANKO®RT/RTS retractor system (referred to hereinafter as the device).
The instructions must be read, understood, and applied by all persons assigned to carry out installation
and assembly, start-up, maintenance, cleaning and troubleshooting of the device. This applies in
particular to the safety instructions listed.
After studying the instructions, you will be able to
–install and operate the device safely,
–clean and service the device correctly and
–take the correct action if a fault occurs.
In addition to these instructions, generally applicable, statutory and other binding regulations for the
prevention of accidents and for environmental protection in the country of use must also be observed.
The instructions must be kept at the place of use of the device so that they are available in legible
condition at all times. If the device is resold, the instructions must always be passed on to the new
owner.
If necessary, download the instructions from the website: http://www.awh.eu/de/downloads.
1.1 Means of Representation
1.1.1 Explanation of Signal Words
The warnings are introduced by a signal word that describes the extent of the hazard. Their meaning
and their classification in hazardous situations are explained in the following overview.
Signal Word
Meaning
Consequences of Failure to Observe
DANGER
Hazard with a high level of risk
Death or severe physical injury
WARNING
Hazard with a moderate level
of risk
Death or severe physical injury
CAUTION
Hazard with a low level of risk
Minor or moderate physical injury
NOTE
Hazard with a low risk
Risk of material damage
NOTE ON EXPLOSION
PROTECTION
Important note on explosion
protection
Disables the explosion protection and
resulting dangers
Table 1.1-1: Overview of Signal Words

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1.1.2 Explanation of the Warnings
Section-related Warnings
The section-related warnings apply not only to one particular action, but to all actions within a section.
In addition, the pictograms and symbols indicate a general or specific danger.
DANGER
This warning warns of a hazard with a high level of risk!
Failure to observe it can result in death or severe physical injury.
Measure(s) to prevent the danger
WARNING
This warning warns of a hazard with a moderate level of risk!
Failure to observe it can result in death or severe physical injury.
Measure(s) to prevent the danger
CAUTION
This warning warns of a hazard with a low level of risk!
Failure to observe it can result in minor or moderate injury.
Measure(s) to prevent the danger
NOTE
This warning warns of a hazard with a slight level of risk!
Failure to observe it can result in material damage.
Measure(s) to prevent the danger
NOTE ON EXPLOSION PROTECTION
This note contains instructions regarding explosion protection.
Non-compliance can disable the explosion protection, thus resulting in hazards.
Embedded Warnings
The embedded warnings apply to specific actions and are integrated directly into the action before the
specific action step.
The embedded warnings are structured as follows.
SIGNAL WORD type and source of the danger
Possible consequences in case of failure to observe
Measure(s) to prevent the danger

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Further Means of Representation
The Information symbol provides useful information, additional tips and recommendations.
–
Texts that follow this mark are bulleted lists.

Texts that follow this mark describe measures for avoiding the danger.
1.
Texts that follow this numbering describe the first step of a task, followed by further numbered
steps that have to be performed in the specified order.
a)
Texts that follow this lettering as subitems of a numbering (e.g. 1) describe the first step of a task
of a higher-level task, followed by further lettered steps that have to be performed in the specified
order.
(1)
Numbers in parentheses reflect the item numbers in figures or parts lists.
““
Texts in quotation marks are (direct) quotes from documents (e.g. directives or standards) or
words, word groups and parts of a text with a special meaning.
Important, significant information is additionally highlighted in bold type, italics or CAPITAL
LETTERS for individual words or phrases.

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1.1.3 Pictograms and Symbols
The following pictograms and symbols are used as an additional measures in warnings to clarify the
sources of dangers and measures. They can appear at all danger levels.
Warning of electrical
voltage
Warning of a potentially
explosive atmosphere
Warning of hand
injuries
Warning of a hot
surface
Warning of corrosive
substances
Warning of magnetic
field
Warning of automatic
startup
Warning of trapping/
entanglement hazard
Warning of substances
that pose a water
hazard
Unauthorized access
prohibited
People with
pacemakers must
keep away
Wear protective work
clothing
Wear safety shoes
Wear protective gloves
Wear safety goggles
Wear a hard hat
Wear hearing
protection
Wear a welding mask
Isolate from power
supply before work
Follow instructions
Protective grounding
connection required
Secure against power
supply being switched
back on
Return for recycling
Operating equipment
for Ex zone

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1.2 Warranty and Liability
The obligations agreed in the contract of supply and delivery, the general terms and conditions and
the terms of delivery of Armaturenwerk Hötensleben GmbH (referred to hereinafter as AWH) and the
statutory regulations valid at the time the contract was concluded shall apply.
Warranty and liability claims in case of personal injury and material damage shall be ruled out, in
particular if these can be attributed to one or more of the following causes:
–improper or incorrect use of the device,
–improper assembly and installation, start-up, operation and maintenance of the device,
–failure to observe the notes in the instructions regarding assembly and installation, start-up,
operation and maintenance of the device,
–constructional modifications to the device (conversions or other modifications to the device must not
be made without the previous written approval from AWH. In case of infringement, the device will
lose its EC conformity and the operating permit.),
–use of spare parts that do not comply with the specified technical requirements,
–improperly performed repairs,
–disasters, the effects of foreign matter and force majeure.
Disclaimer
AWH reserves the right to make changes to this document at any time and without prior notice. AWH
provides no guarantee (neither explicitly nor implied) with regard to all information in this document,
including but not limited to the implied warranty of merchantability and suitability for a particular
purpose. Furthermore, AWH does not guarantee the correctness or completeness of information, text,
graphics or other parts in this document.
1.3 Product Names and Trademarks
The product names and trademarks included in these instructions are brands or registered trademarks
of the respective owners.
TANKO®and AWH®are registered trademarks of Armaturenwerk Hötensleben GmbH.
1.4 Related Documents
The following documents may contain additional information to these instructions:
–Manufacturer's declaration and/or certificates of conformity,
–Certificates,
–Additional documents for any attached or upstream components, e.g. drawings, performance data
and information on accessories, etc.,
–Supplements to these instructions (e.g. special versions),
–AWH catalog, product data sheet.

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2Safety
The device was built in accordance with state-of-the-art technology and the recognized safety rules.
Nevertheless, the use of the device may still pose a danger to the life and limb of the user and third
parties or a risk of impairments to the device and other objects of material value as a result of its
function.
The following basic safety instructions are intended to prevent injury to personnel and material damage.
The owner must ensure that the basic safety instructions are observed and adhered to.
These instructions contain basic notes on installation, operation, maintenance and servicing of the
device that must be complied with.
Everyone involved in assembly, installation, operation, maintenance and servicing must have read and
understood these instructions.
The safety systems and safety instructions described in these instructions must be adhered to.
WARNING
Failure to comply with these instructions, incorrectly performed installation and repair
work or incorrect operation could lead to malfunctions at the device and to dangerous
situations!
There is a risk of death or severe physical injury.
Have all work performed on the device carried out by an expert only and in
compliance with
–the corresponding detailed operating and installation instruction(s),
–the warnings and safety signs on the device,
–the regulations and requirements specific to the plant and
–the national/regional regulations for safety and the prevention of accidents.
Never install damaged devices or components.
The figures in these instructions are intended to provide a basic understanding, and are
primarily illustrations of the principles involved. They may deviate from the actual design of the
device.
For maintenance and repairs, we recommend a training course provided by the manufacturer
or by a person authorized by the manufacturer.
If you have questions or doubts about handling the cleaning device, please contact AWH.

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Integrated Safety Systems
The integrated safety equipment used by the higher-level plant in which the device is installed is to be
checked at regular intervals.
WARNING
Dangerous situations will result from modifying or disabling safety devices!
Only functioning safety equipment can ensure safe operation and prevent
non-permissible operating conditions.
Modifying or disabling safety equipment can result in unforeseen and dangerous
situations.
There is a risk of death or severe physical injury.
Disabling the safety equipment or changing the way it works is strictly prohibited.
2.1 Intended Use
WARNING
Risk of hazardous situations caused by use other than the intended use and/or other
types of use of the device!
There is a risk of death or severe physical injury.
Only use the device as intended.
–Only use the device in accordance with the specifications contained in these
instructions and the specifications on the device's type plate.
–All specifications in these instructions must be adhered to at all times.
–Always keep the operating instructions at the location where the device is used.
–Keep all signs on the device in legible condition.
–Only use original spare parts.
Modifications or conversions to the device are NOT permitted.

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WARNING
Danger from incorrect use of materials/media!
The materials/media to be used for operation of the device as intended are procured and
utilized by the owner of the device.
If unsuitable materials/media are selected, strong chemical reactions could result in fatal
injury or severe physical injuries.
The proper selection and handling of these materials/media is the sole responsibility
of the owner.
When selecting the materials/media, make sure that the permitted technical
parameters of the device are NOT exceeded.
The cleaning agents and media must be approved for all of the materials of the device
(e.g. washers, bushings) and for the substances in the container to be cleaned which
come into contact with them.
Adhere to the specified chemical limits for use in the material data sheets.
Adhere to the safety data sheets provided by the manufacturers of the materials and
media, in particular for hazardous substances:
–Comply with the hazard and disposal instructions.
–Specify protective measures and compile operating instructions for hazardous
substances.
–This also applies to hazardous substances that may develop during work processes.
Use of the retractor systems in potentially explosive areas is only permitted if the pneumatic actuator is
operated using operating materials that are suitable for the application in question (for information on
limit switches and temperature sensors, see Table 7.5-1: Replacement Parts List (Standard), Wear
Parts, Tightening Torques) and that have been brought onto the market in accordance with Directive
2014/34/EU. A separate risk assessment must be performed with regard to the assembly of the
retractor systems using operating materials not specified in these operating instructions.
The provisions of EN 60079-14 regarding the selection and setup of electrical operating materials must
be observed.
Refer to the order confirmation/parts list from AWH for the materials used in the device.
The device is used for cleaning the interiors of containers with and without installed equipment.
The option of using retractor systems is useful, particularly in situations where there is little
space available for a cleaning device, due to projecting agitators or other installations, or where
critical products prevent permanent installation of the device.
For the purpose of these instructions the word container refers to closed tanks, silos, drums,
containers, pipes, etc. that are provided with a drain that ensures that the supplied cleaning medium
can drain freely.

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When using the device, it is necessary to distinguish between the following operating states.
Operating state –cleaning process (cleaning > cleaning head extended)
In this case, flammable gases, vapors, mists or flammable dust may already be present in the container
or are only added by the intended cleaning process in the form of sprayed fluid (aerosol).
Flammable vapors and mists must be expected as soon as flammable fluids with a flash point of 15 K
above the cleaning medium temperature are sprayed, including those permitted in accordance with
Section 3.4 Cleaning Media. For this reason, both the conditions in the container and the type and
temperature of the cleaning medium must be taken into account when defining the following three
process conditions:
A) During cleaning, no explosive mixture is present, nor is it possible for one to develop from the
cleaning medium. (Explosive mixtures consist of flammable gases, vapors, mists or stirred-up dust
in the air or another oxidizing agent that reacts to a self-propagating flame when an ignition source
becomes active, generally causing an abrupt increase in temperature and pressure).
Pressure in the container: 0 to 0.5 bar (0 to 7.25 psi g)
Temperature of the cleaning medium: +5 °C to +95 °C
Ambient temperature in the container to be cleaned: +5 °C to +95 °C
Ambient temperature outside the container to be cleaned: +5 °C to +40 °C
B) A potentially explosive atmosphere (ATEX conditions) is present during cleaning (A potentially
explosive atmosphere is a potentially explosive mixture with air as an oxidizing agent under
atmospheric conditions (ambient temperature of -20 °C to +60 °C and absolute pressure of 0.8 bar
a to 1.1 bar a, that is already present before the use of the device, or that develops when spraying
a cleaning medium during the cleaning process)
Pressure in the container: 0 to 0.1 bar (0 to 1.45 psi g)
Temperature of the NON-flammable cleaning medium: +5 °C to +60 °C
Temperature of the flammable cleaning medium: +5 °C to flash point T flash point -15 °C
(max. +60 °C)
Ambient temperature in the container to be cleaned: +5 °C to +60 °C
Ambient temperature outside the container to be cleaned: +5 °C to +40 °C
C) A potentially explosive mixture is present during cleaning, but there is no explosive atmosphere.
Cleaning is PROHIBITED! If necessary, the process conditions must be changed before using the
device so that process conditions exist in accordance with A) or B).
For processes that are outside atmospheric conditions, the owner must make a differentiated
assessment of the effects.
The necessary safety-related parameters must be determined and an additional hazard assessment
must be created for explosion hazards in order to separately verify the suitability of the device used.
The cleaning process for the retractor systems is prohibited in operating conditions that lead to
explosive mixtures outside atmospheric conditions (outside temperatures of –20 °C to +60 °C and
absolute pressures of 0.8 bar a to 1.1 bar a) in the container to be cleaned or in the presence of
oxidizing agents other than air.
The cleaning process with the retractor systems is also prohibited in the presence of explosive mixtures
with ignitable substances such as hydrogen, ethylene, acetylene, carbon disulfide, carbon monoxide,
ethylene oxide and trichlorosilane.

ATEX Retractor System TANKO-RT/-RTS
10/121 Translation - Operating/installation instructions 2020/01 2Safety
Operating state –rest position (NO cleaning > cleaning head retracted)
Pressure in the container: -1 to 3.0 bar (-14.5 to 43.5 psi g)
Ambient temperature in the container to be cleaned:
-20 °C to +130 °C (O-Ring material EPDM)
-15 °C to +140 °C (O-Ring material FKM or FFKM)
Ambient temperature outside the container to be cleaned: -10 °C to +40 °C
The device was developed, engineered and built exclusively for industrial and commercial use (food,
chemical and pharmaceutical industries and low-germ processes). It must not be used for private
purposes.
The device is constructed so that it can be operated safely within the specified technical parameters
(see Section 3.3 Technical Data).
The TANKO-RT and TANKO-RTS retractor system is suitable for use in Zone 0 or Zone 20 (in the
container) and Zone 1 or Zone 21 (outside the container / actuator unit) explosive atmospheres.
Please note the additional information on the type plate for the Ex labeling (see Section 2.5.3 Identification
for Explosion Protection).
The owner must always check whether the device is suitable for his application.
NOTE ON EXPLOSION PROTECTION
The area of application of the device must always be adapted to the corresponding
operating conditions and the materials in contact with the product. These materials must
be selected so that there are no reactions between them and the cleaning medium or the
substances in the container to be cleaned, which could impair explosion safety.
It must be ensured that no hybrid mixtures can develop in the container or in the
environment (a hybrid mixture is a mixture of air with flammable substances in different
aggregate states, e.g. gas / vapor and dust)
If this is not observed, the explosion protection could be disabled.
Locations for containers in which the device is to be installed are usually closed rooms. If the set-up
is different, the owner is responsible for ensuring the device is protected against harmful weather
and environmental influences in compliance with the specified operational limits / conditions
(see Section 3.3 Technical Data).