GEA VARIVENT 24/7 PMO User manual

Original Operating Instructions
VARIVENT® 24/7 PMO Cheese Curd Valve 2.0 Type: M_C/2.0
Edition 2018-10-04
430BAL013215EN_1

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Operating Instructions · VARIVENT®Mixproof Valve M/2.0
Edition 2018-10-04
Product VARIVENT®24/7 PMO Cheese Curd Valve 2.0 Type:M_C/2.0
Document Operating Instructions
Edition 2018-10-04
430BAL013215EN_1
Manufacturer GEA Tuchenhagen GmbH
Am Industriepark 2-10
D-21514 Büchen
Phone:[phone]
Fax: [phone]
Mail: [email protected]
Web: http://www.tuchenhagen.com
These Operating Instructions are the original instructions in the sense of the EU
Machinery directive.These operating instructions are protected by copyright. All rights
reserved. The document may not, in whole or in part, be copied, reproduced, translated
or reduced to an electronic medium of machine-readable form without the express
permission of GEA Tuchenhagen GmbH.
Wordmarks The designations VARIVENT®, 24/7 PMO Valve®2.0 and T.VIS®are protected trade-
marks of GEA Tuchenhagen GmbH.

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Table of Contents
Notes for the Reader ...................................................................................................................................... 6
Binding Character of These Operating instructions .......................................................................................... 6
Notes on the Illustrations .................................................................................................................................. 6
Symbols and Highlighting ................................................................................................................................. 7
Abbreviations and Terms ................................................................................................................................. 8
Safety ............................................................................................................................................................. 10
Safety Note ..................................................................................................................................................... 10
Operator's Duties ............................................................................................................................................ 10
Qualification of Staff ....................................................................................................................................... 11
Supplementary Regulations ........................................................................................................................... 12
Instructions for the Safe Operation ................................................................................................................. 13
•General Principles ...................................................................................................................................... 13
•Installation .................................................................................................................................................. 14
•Commissioning/Setup Mode ...................................................................................................................... 14
•Setting into Operation ................................................................................................................................. 15
•Operation .................................................................................................................................................... 15
•Shutting Down ............................................................................................................................................ 15
•Maintenance and Repair ............................................................................................................................ 16
•Disassembly ............................................................................................................................................... 17
•Environmental Protection ........................................................................................................................... 17
•Electrical Equipment................................................................................................................................... 17
Signage .......................................................................................................................................................... 18
Residual Risk ................................................................................................................................................. 19
•Hazard Areas ............................................................................................................................................. 19
•Residual Dangers ....................................................................................................................................... 21
•Declaration of Conformity ........................................................................................................................... 22
Transport and Storage ................................................................................................................................. 23
Scope of Supply ............................................................................................................................................. 23
Transport ........................................................................................................................................................ 23
Storage ........................................................................................................................................................... 24
Intended Purpose ......................................................................................................................................... 25
Designated Use .............................................................................................................................................. 25
Requirements for the Operation ..................................................................................................................... 25
Pressure Equipment Directive ........................................................................................................................ 25
Improper Operating Conditions ...................................................................................................................... 25
Conversion Work ............................................................................................................................................ 26
Design and Function .................................................................................................................................... 27
Design ............................................................................................................................................................ 27
Leakageproof Shut-off .................................................................................................................................... 28
Actuator Function ........................................................................................................................................... 28
Installation .................................................................................................................................................... 29
Notes on Installation ....................................................................................................................................... 29
Valve with Detachable Pipe Connection Elements ........................................................................................ 29
Valve with Welding Ends ................................................................................................................................ 30
Pneumatic Connections ................................................................................................................................. 31
•Air requirement ........................................................................................................................................... 31
•Establishing the hose connection ............................................................................................................... 31

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Hosing Diagram............................................................................................................................................. 32
Electrical Connections and Commissioning .............................................................................................. 33
Connecting the valve....................................................................................................................................... 33
Adjusting the Position Detecting Devices........................................................................................................ 34
•Adjusting Control top T.VIS A-15 ................................................................................................................ 34
•Adjusting Control top T.VIS M-15 ............................................................................................................... 36
•Adjusting the Proximity Switch in the Lantern on Double-Disks Without Balancer..................................... 39
•Adjusting of the external Sensor in the Lantern .......................................................................................... 41
Test Procedures for
Tuchenhagen PMO Valve Type M-C/2.0 ........................................................................................................ 47
•Purpose ....................................................................................................................................................... 47
•Test Procedure Overview ........................................................................................................................... 47
•Hardware Description ................................................................................................................................. 47
•Test procedure 1 ......................................................................................................................................... 48
•Test procedure 2 ......................................................................................................................................... 49
•Commissioning ........................................................................................................................................... 49
Cleaning and Passivation............................................................................................................................. 50
Cleaning .......................................................................................................................................................... 50
•Typical cleaning parameters in dairy operations ......................................................................................... 50
•Cleaning of the leakage outletsystem ......................................................................................................... 50
•Examples of cleaning by lifting .................................................................................................................... 51
Passivation ...................................................................................................................................................... 51
Malfunctions .................................................................................................................................................. 52
Maintenance .................................................................................................................................................. 53
Inspections ...................................................................................................................................................... 53
•Product Contact Seals ................................................................................................................................ 53
•Pneumatic Connections .............................................................................................................................. 53
•Electrical Connections ................................................................................................................................ 53
Maintenance Intervals ..................................................................................................................................... 54
Prior to dismantling the Valve ......................................................................................................................... 54
Disassembling ................................................................................................................................................. 55
•Depressurizing the Actuator ........................................................................................................................ 55
•Removing the Control Top and the Switch Bar ........................................................................................... 56
•Separating the Valve from the Housing ...................................................................................................... 57
•Dismantling the Valve Disk ......................................................................................................................... 58
•Dismantling the Double Valve Disk ............................................................................................................. 59
•Dismantling the Lifting Actuator .................................................................................................................. 60
Maintenance.................................................................................................................................................... 61
•Cleaning the Valve ...................................................................................................................................... 61
•Removing V-Ring RA .................................................................................................................................. 62
•Inserting V-Ring RA .................................................................................................................................... 63
•Lubricating Seals and Threads ................................................................................................................... 64
Assembling...................................................................................................................................................... 66
•Assembling the Lifting Actuator .................................................................................................................. 66
•Assembling the Valve ................................................................................................................................. 68
•Mounting the Switching Rod and the Control Top ...................................................................................... 72
•Insert the Valve into the Housing ................................................................................................................ 73
•Torques of the Semi-annular Clamps and Clamp Joints ............................................................................ 73
•Checking the Function ................................................................................................................................ 74
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Disposal .......................................................................................................................................................... 74
•General Notes ............................................................................................................................................ 74
•Valve Actuator Disposal ............................................................................................................................. 75
Technical Data .............................................................................................................................................. 76
Type Plate ...................................................................................................................................................... 76
Technical Data ............................................................................................................................................... 76
Resistance of Sealing Materials ..................................................................................................................... 78
Pipe Ends ....................................................................................................................................................... 79
Weights .......................................................................................................................................................... 79
Tools ............................................................................................................................................................... 80
Lubricants ....................................................................................................................................................... 80
Spare Parts Lists ...........................................................................................................................................81
Dimension Sheets..........................................................................................................................................89

Notes for the Reader
Notes on the Illustrations
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Notes for the Reader
The present Operating instructions are part of the user information for the valve. The
Operating instructions contain all the information you need to transport, install, commis-
sion, operate and carry out maintenance for the valve.
Binding Character of These Operating instructions
These Operating instructions contains the manufacturer's instructions for the owner of
the valve and for all persons who work on or use the valve regarding the procedures to
follow.
Carefully read these Operating instructions before starting any work on or using the
valve. Your personal safety and the safety of the valve can only be ensured if you act as
described in the Operating Instructions.
Store the Operating instructions in such a way that they is accessible to the owner and
the operating staff during the entire life cycle of the valve. When the location is changed
or the valve is sold make sure you also provide the Operating instructions.
Notes on the Illustrations
The illustrations in these Operating instructions show the valve in a simplified form. The
actual design of the valve can differ from the illustration. For detailed views and dimen-
sions of the valve please refer to the design documents.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
Edition 2018-10-04

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Notes for the Reader
Symbols and Highlighting
Symbols and Highlighting
In these Operating instructions important information is highlighted by symbols or
special formatting. The following examples illustrate the most important types of high-
lighting.
DANGER
Warning: Fatal Injuries.
Failure to observe the warning can cause serious damage to health, or even death.
The arrow identifies a precautionary measure you have to take to avoid the hazard.
WARNING
Warning: Serious Injuries.
Failure to observe the warning note can result in serious damage to health.
The arrow identifies a precautionary measure you have to take to avoid the hazard.
CAUTION
Warning: Injuries.
Failure to observe the warning note can result in minor or moderate damage to health.
The arrow identifies a precautionary measure you have to take to avoid the hazard.
IMPORTANT NOTE
Warning: Damage to Property.
Non-observance of the warning note can cause serious damage to the valve or the
vicinity of the valve.
The arrow identifies a precautionary measure you have to take to avoid the hazard.
EXPLOSION HAZARD
Warning: Explosions.
Failure to observe the warning may result in a severe explosion.
The arrow identifies a precautionary measure you have to take to avoid the hazard.
Carry out the following steps: = Start of instructions for a task.
1. First step in a sequence of operations.
2. Second step in a sequence of operations.
Result of the previous operation.
The operation is complete, the goal has been achieved.

Notes for the Reader
Abbreviations and Terms
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NOTE
Further useful information.
Abbreviations and Terms
Abbreviation Explanation
a/f Indicates the size of spanners
width across flats
approx. approximately
BS British Standard
bar Unit of measurement of pressure [bar]
All pressure ratings [bar/psi] stand for over pressure [barg/psig]
if this is not explicitly described differently.
Cv value flow coefficient [US gallons per minute]
1 Cv = 1,17 x Kv
°C Unit of measurement of temperature [degree Celsius]
dm3nUnit of measurement of volume [cubic decimetre]
Volume (litre) at standard temperature and pressure
DN DIN nominal width
DIN German standard issued by DIN (Deutsches Institut für Normung e.V,
German Institute for Standardization)
EN European Standard
EPDM Material designation
Short designation according to DIN/ISO 1629:
Ethylene Propylene Diene Rubber
°F Unit of measurement of temperature [degree Fahrenheit]
FKM Material designation, short designation according to DIN/ISO 1629:
Fluorine rubber
h Unit of measurement of time [hour}
HNBR Material designation
Short designation according to DIN/ISO 1629:
Hydrogenated Acrylonitrile Butadiene Rubber
IP Protection class
Inch Unit of measurement of length [inch]
Inch OD Pipe dimension acc. to British standard
(BS), Outside Diameter
Inch IPS US pipe dimension
Iron Pipe Size
ISO International standard issued by the International Organization for Standardi-
zation
kg Unit of measurement of weight [kilogram]
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Notes for the Reader
Abbreviations and Terms
kN Unit of measurement of force [kilonewton]
L Unit of measurement of volume [litre]
max. maximum
mm Unit of measurement of length [millimetre]
μm Unit of measurement of length [micrometre]
Mmetric
Nm Unit of measurement of work [newton metre]
UNIT OF TORQUE 1 Nm = 0.737 lbft
Pound-Force (lb) + Feet (ft)
PA Polyamide
PE-LD Low-density polyethylene
psi Anglo-American Unit of measurement of pressure
[Pound-force per square inch]
All pressure ratings [bar/psi] stand for over pressure [barg/psig]
if this is not explicitly described differently.
SET-UP Self-learning installation
During commissioning and maintenance, the SET-UP procedure carries out
all the necessary settings for the generation of messages.
TIG Welding method
Tungsten inert gas welding
T.VIS Tuchenhagen Valve Information System
V AC Volt alternating current
V DC Volt direct current
W Unit of measurement of power [Watt]
Abbreviation Explanation

Safety
Operator's Duties
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Safety
Safety Note
The valve is operationally reliable. It was built according to state-of-the art standards.
Nevertheless, the valve can pose dangers, especially if
•the valve is not used in accordance with its intended use,
•the valve is not used correctly,
•the valve is operated under impermissible operating conditions.
Operator's Duties
In your capacity as operator of the facility you bear a particular responsibility for the
proper and safe handling of the valve in your facility. Only use the valve when it is in
perfect condition to prevent danger to persons and property.
These Operating instructions contain the information you and your staff need for the
safe and reliable operation during the entire service life of the valve. Be sure to read
these Operating instructions carefully and ensure that the measures described here are
observed.
The operator's duty of care includes planning the necessary safety measures and moni-
toring that these measures are observed. The following principles apply:
•Only allow qualified staff to work on the valve.
•The operator must authorize the staff to carry out the relevant tasks.
•Working areas and the entire environment of the valve must be neat and clean.
•The staff must wear suitable work clothing and personal protective equipment. As
the operator of the facility make sure that work clothing and personal protective
equipment are used.
•Instruct the staff with regard to any properties of the product which might pose a
health risk and the preventative measures to be taken.
•Have a qualified first-aider on call during the operation, who can initiate the neces-
sary first-aid measures in case of an emergency.
•Clearly define processes, lines of authority and responsibilities associated with the
valve. Everybody must know what to do in case of an emergency. Instruct the staff
in this respect at regular intervals.
•The signs relating to the valve must always be complete and legible. Check, clean
and replace the signs as necessary at regular intervals.
NOTE
Carry out regular checks. This way you can ensure that these measures are actually
observed.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Safety
Qualification of Staff
Qualification of Staff
This section contains information about the qualifications that staff working on the valve
must have.
Operating and maintenance staff must
•have the necessary qualification to carry out their tasks,
•be instructed with regard to possible dangers,
•know and observe the safety instructions given in the documentation.
Only allow qualified electricians to carry out work on the electrical equipment or have a
qualified electrician supervise the work.
Only allow specially trained staff to carry out any work on explosion-protected equip-
ment. When working on explosion-protected equipment observe the standards DIN EN
60079-14 for gases and DIN EN 50281-1-2 for dusts.
The following minimum qualifications are required:
•Vocational training as a specialist whocan work on the valve independently.
•Sufficient instruction to work on the valve under the supervision and direction of a
qualified specialist.
Each member of staff must meet the following requirements to be allowed to work on the
valve:
•Personal qualification for the relevant task.
•Sufficient professional qualification for the relevant task.
•Instructed with regard to the function of the valve.
•Instructed with regard to the operating sequences of the valve.
•Familiar with the safety devices and their function.
•Familiar with these Operating instructions, especially with the safety instructions and
the information which is relevant for the task on hand.
•Familiar with the basic regulations with regard to occupational health and safety and
accident prevention.

Safety
Supplementary Regulations
12
For work to be carried out on the valve the following user groups are distinguished:
Supplementary Regulations
In addition to the instructions in this documentation the following also has to be
observed:
•pertinent accident prevention regulations,
•generally accepted safety rules,
•national regulations applicable in the country of use,
•work and safety instructions applicable in the facility,
•installation and operating regulations for use in potentially explosive areas.
User groups
Staff Qualifications
Operating staff Adequate instruction and sound knowledge in the following areas:
•Function of the valve
•Valve operating sequences
•What to do in case of an emergency
•Lines of authority and responsibilities with respect to the task.
Maintenance staff Adequate instruction as well as sound knowledge of the design and
function of the valve.
Sound knowledge in the following areas:
•Mechanical equipment
•Electrical equipment
•Pneumatic system
Authorization with regard to safety engineering standards to carry out
the following tasks:
•Setting devices into operation
•Earthing of devices
•Marking of devices
The relevant certificates of qualification must be submitted before work
can be carried out on ATEX certified machines.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Safety
Instructions for the Safe Operation
Instructions for the Safe Operation
Dangerous situations during the operation can be avoided by safety-conscious and
proactive behaviour of the staff.
General Principles
To ensure the safe operation of the valve the following principles apply:
•The Operating instructions must be kept ready to hand at the valve's place of use.
They must be complete and in clearly legible form.
•Only use the valve for its intended use.
•The valve must be functional and in good working order. Check the condition of the
valve before starting work and at regular intervals.
•Wear tight-fitting work clothing for all work on the valve.
•Ensure that nobody can get hurt on the parts of the valve.
•Immediately report any faults or noticeable changes on the valve to the person
responsible.
•Observe the accident prevention regulations and all local regulations.

Safety
Instructions for the Safe Operation
14
Installation
For installation, the following principles apply:
•Only properly qualified staff is allowed to install, assemble and set the valve into
operation.
•Ensure that adequate working and traffic areas are available at the place of installa-
tion.
•Observe the maximum load-bearing capacity of the installation surface.
•Observe the transport instructions and markings on the part(s) to be transported. For
transportation and installation of the valve, it is imperative to remove the control top
and the switch bar from the actuator (2) and to use the screwed-in eye bolt (1), part
no. 221-104.98 for lifting the valve, see “Removing the Control Top and the Switch
Bar“ (Page 52).
•Remove any nails protruding from transport crates immediately after opening the
crate.
•Under no circumstances should anyone stand under a suspended load.
•During assembly, the valve safety devices might not be working effectively.
•Reliably secure machine parts which have already been connected against inadvert-
ently being switched on.
Commissioning/Setup Mode
For commissioning, the following principles apply:
•Take protective measures against dangerous contact voltages in accordance with
pertinent regulations.
•The valve must be completely assembled and correctly adjusted. All screw connec-
tions must be securely tightened. All electrical cables must be installed correctly.
•Reliably secure machine parts which have already been connected against inadvert-
ently being switched on.
•Relubricate all lubricating points.
•Make sure lubricants are used properly.
•After conversion of the valve, residual risks must be reassessed.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Safety
Instructions for the Safe Operation
Setting into Operation
For setting into operation, the following principles apply:
•Only allow properly qualified staff to set the valve into operation.
•Establish all connections correctly.
•The safety devices for the valve must be complete, fully functional and in perfect
condition. Check the function before starting any work.
•When the valve is switched on, the danger zones must be free.
•Remove any liquids that have escaped without leaving residues.
Operation
For operation, the following principles apply.
•Monitor the valve during the operation.
•Safety devices must not be changed, removed or taken out of service. Check all
safety devices at regular intervals.
•All guards and hoods must be fitted as intended.
•The place of installation of the valve must be adequately ventilated at all times.
•Structural alterations of the valve are not permitted. Immediately report any changes
on the valve to the person responsible.
•Always keep danger zones clear. Do not leave any objects in the danger zone. Only
allow persons to enter the danger zone when the machine is de-energized.
•Regularly check that all emergency stop devices are working correctly.
•Observe the safety information sheets issued by the detergent manufacturers! Only
use detergents which are non-abrasive and not aggressive towards the used mate-
rial.
Shutting Down
For shutting down, the following principles apply:
•Switch off the compressed air.
•Switch off the valve via the main switch.
•Padlock the main switch (if fitted) in the off position to prevent it from being switched
back on. The key to the padlock must be deposited with the person responsible until
the machine is restarted.
•For longer periods of standstill, observe the storage conditions, see “Storage“
(Page 24).

Safety
Instructions for the Safe Operation
16
Maintenance and Repair
Before starting any maintenance and repair work on the electrical devices of the valve,
carry out the following steps in accordance with the "5 safety rules":
•Isolate from the power supply
•Take appropriate measures to prevent switch on
•Test absence of voltage
•Earthing and short-circuiting
•Cover or safeguard any adjacent live parts.
For maintenance and repair, the following principles apply:
•Observe the intervals specified in the maintenance schedule.
•Only allow qualified staff to carry out maintenance or repair work on the valve.
•Before starting any maintenance or repair work, the valve must be switched off and
secured against being switched back on. Work may only be started once any
residual energy has been discharged.
•Block access for unauthorized persons. Put up notice signs which draw attention to
the maintenance or repair work going on.
•Do not climb on the valve. Use suitable access aids and working platforms.
•Wear suitable protective clothing.
•Only use suitable and undamaged tools to carry out maintenance work.
•When replacing parts only use approved, fully functional load lifting devices and
lifting accessories which are suitable for the intended purpose, see “Storage“
(Page 24).
•Before setting the valve back into operation refit all safety devices as originally
provided in the factory. Then check that all safety devices are working correctly.
•Make sure lubricants are used properly.
•Check pipes are firmly secured, also check for leaks and damage.
•Check that all emergency stop devices are working correctly.
•The housing sockets have very sharp edges. When transporting and assembling the
valve be sure to wear suitable protective gloves.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
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Safety
Instructions for the Safe Operation
Disassembly
For disassembly, the following principles apply:
•Only allow qualified staff to disassemble the valve.
•Before starting disassembly, the valve must be switched off and secured against
being switched back on. Work may only be started once any residual energy has
been discharged.
•Disconnect all power and utility lines.
•Markings, e.g. on lines, must not be removed.
•Do not climb on the valve. Use suitable access aids and working platforms.
•Mark the lines (if unmarked) prior to disassembly to ensure they are not confused
when re-assembling.
•Protect open line ends with blind plugs against ingress of dirt.
•Pack sensitive parts separately.
•For longer periods of standstill, observe the storage conditions, see “Storage“
(Page 24).
Environmental Protection
Harm to the environment can be avoided by safety-conscious and proactive behaviour
of the staff.
For environmental protection the following principles apply:
•Substances harmful to the environment must not be discharged into the ground or
the sewage system.
•Always observe the pertinent regulations relating to waste avoidance, disposal and
utilization.
•Substances harmful to the environment must be collected and stored in suitable
containers. Clearly mark the containers.
•Dispose of lubricants as hazardous waste.
Electrical Equipment
For all work on electrical equipment, the following principles apply:
•Access to electrical equipment should only be allowed to qualified electricians.
Always keep unattended switch cabinets locked.
•Modifications of the control system can affect the safe and reliable operation. Modifi-
cations are only permitted with the express permission of the manufacturer.
•After completion of all work, check that the protective devices are fully functional.

Safety
Signage
18
Signage
Dangerous points on the valve are indicated by warning signs, prohibition signs and
mandatory signs.
The signs and notes on the valve must always be legible. Any illegible signs must be
replaced immediately.
Signs on the valve
Sign Meaning
General hazard warning
Warning Crushing
Explosive atmosphere hazard warning
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Safety
Residual Risk
Residual Risk
Hazard Areas
Please observe the following notes:
•In the event of malfunctions, shut down the valve (disconnect from the power and air
supply) and secure it against being used.
•Never reach into the lantern (9) or the valve housing when the valve is switching.
Fingers can be crushed or cut off.
•On a spring-closing valve there is danger of injury when the clamps (43) are opened
as the released spring pretension will suddenly lift the actuator. Therefore, release
the spring tension before detaching the clamps by supplying the actuator (A) with
compressed air.
•Before starting any service, maintenance or repair work, disconnect the valve from
the power supply and secure it against inadvertently being switched back on again.
•Only allow a qualified electrician to carry out any work on the electrical power
supply.
•Check the electrical equipment of the valve at regular intervals. Immediately remedy
loose connections and molten cables.

Safety
Residual Risk
20
•If work on live parts cannot be avoided, call in a second person, who can operate
the main switch in case of an emergency.
•The housing sockets have very sharp edges. When transporting and assembling the
valve be sure to wear suitable protective gloves.
•When the valve is lifting, when the valve seat is cleaned or if a seal is defective,
cleaning medium escapes from the leakage outlet. This leakage must be collected in
a suitable container, e.g. a funnel or a drip pan, and removed in a controlled
manner. Observe the instructions in the safety data sheets issued by the detergent
manufacturers.
•The housing of the T.VIS control top is made of Noryl or PA. The operator must pay
particular attention to the selection of a suitable cleaning agent.The operator must
ensure that safety valve E2 is functional all the time.
Operating Instructions · VARIVENT® Mixproof Valve M-C/2.0
Edition 2018-10-04