GEA VARIVENT N User manual

Hygienic valves
GEA VARIVENT® Shut-off valve type N and U, U_R, N_V and U_V
Operating instruction (Translation from the original language)
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COPYRIGHT
These Operating Instructions are the English translation of the original operating
instructions in the sense of the EU Machinery Directive. This document is
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.
LEGAL NOTICE
Wordmarks
The designations VARIVENT® and T.VIS® are protected trademarks of GEA
Tuchenhagen GmbH. The TEFASEP® gold designation is a trademark of GEA
Tuchenhagen GmbH registered in Switzerland.
We kindly request that you answer a few short questions about these Operating
Instructions. Use the following QR code or link to access the questionnaire:
https://www.ntgt.de/ra/s.aspx?s=367112X57707125X58087
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TABLE OF CONTENTS
1 General Information 5
1.1 Information on the Document 5
1.1.1 Binding Character of These Operating Instructions 5
1.1.2 Notes on the Illustrations 5
1.1.3 Symbols and Highlighting 5
1.2 Manufacturer address 6
1.3 Contact 6
1.4 EU Declaration of Conformity in accordance with the EC Machinery Directive 2006/42/EC 7
2 Safety 8
2.1 Intended use 8
2.1.1 Requirements for operation 8
2.1.2 Pressure equipment directive 8
2.1.3 ATEX directive 8
2.1.4 Improper operating conditions 8
2.2 Operator’s Duty of Care 9
2.3 Subsequent changes 10
2.4 General safety instructions and dangers 10
2.4.1 Principles for safe operation 10
2.4.2 Environmental Protection 10
2.4.3 Electrical Equipment 11
2.5 Supplementary Regulations 11
2.6 Qualification of personnel 11
2.7 Safety equipment 12
2.7.1 Signage 12
2.8 Residual dangers 13
2.9 Danger zones 14
3 Description 16
3.1 Design 16
3.2 Functional description 18
3.2.1 Valve N 18
3.2.2 Valve U 18
4 Transport and storage 20
4.1 Storage conditions 20
4.2 Transport 20
4.2.1 Scope of supply 21
5 Technical data 22
5.1 Type plate 22
5.2 Technical data 22
5.3 Resistance and permitted operating temperature of the sealing materials 25
5.4 Pipe ends - General table of measurements 26
5.5 Tool 27
5.6 Lubricants 27
5.7 Weights 27
6 Assembly and installation 29
6.1 Safety instructions 29
6.2 Notes on installation 29
6.3 Control head 29
6.4 Valve with Detachable Pipe Connection Elements 29
6.5 Valve with Welded Ends 30
6.6 Pneumatic connections 31
6.6.1 Air Requirement 31
6.6.2 Establishing Hose Connections 31
6.7 Electrical connection with T.VIS control top 32
7 Start-up 33
7.1 Safety instructions 33
7.2 Notes on commissioning 33
8 Operation and control 34
8.1 Safety instructions 34
9 Cleaning 35
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9.1 Cleaning 35
9.1.1 Cleaning Process Examples 35
9.1.2 Cleaning results 35
9.2 Passivation 36
10 Maintenance 37
10.1 Safety instructions 37
10.2 Inspections 38
10.2.1 Product contact seals 38
10.2.2 Pneumatic connections 38
10.2.3 Electrical connections 38
10.3 Maintenance intervals 39
10.4 Prior to disassembly 39
10.5 Disassembling Valve N 40
10.5.1 Detaching the Clamp Connection (43.1) 40
10.5.2 Removing the Control Top 42
10.5.3 Disconnecting the Valve from the Housing 43
10.5.4 Removing the Valve Disk 44
10.6 Disassembling Valve U 45
10.6.1 Detaching the Clamp Connection (46) 45
Removing the Valve Disk 49
10.7 Maintenance 51
10.7.1 Cleaning the Valve 51
10.7.2 Replacing the V-Ring 51
10.7.3 Exchanging the O-ring (TEFASEP gold) 53
10.7.4 Lubricating Seals and Threads 55
10.8 Installation 56
10.8.1 Reversing the resting position 56
10.8.2 Installing the Valve 57
10.8.3 Torques for the Clamps and Clamp Connections 58
10.8.4 Checking the function 59
11 Alarms 60
11.1 Malfunctions and remedies 60
12 Decommissioning 61
12.1 Safety instructions 61
12.2 Disposal 61
12.2.1 General notes 61
12.2.2 Valve Actuator Disposal 61
13 Parts list - shut-off valve N 62
14 Parts list - shut-off valve N_V 70
15 Parts list - shut-off valve U 75
16 Parts list - shut-off valve U_V 83
17 Parts list - shut-off valve U_R 86
18 Dimension sheet - shut-off valve N 94
19 Dimension sheet - shut-off valve U 96
20 Dimensional sheet - shut-off valve U_R 98
21 Appendix 100
21.1 Lists 100
21.1.1 Abbreviations and terms 100
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1 General Information
1.1 Information on the Document
The present Operating Instructions are part of the user information for the
product. The Operating Instructions contain all the information you need to
transport, install, commission, operate and carry out maintenance for the product.
1.1.1 Binding Character of These Operating Instructions
These Operating Instructions contain the manufacturer's instructions to the
operator of the product and to all persons who work on or use the product
regarding the procedures to follow.
Carefully read these Operating Instructions before starting any work on or using
the product. Your personal safety and the safety of the product can only be
ensured if you act as described in the Operating Instructions.
Store the Operating Instructions in such a way that they are accessible to the
operator and the operating staff during the entire life cycle of the product. When
the location is changed or the product is sold make sure you also provide the
Operating Instructions.
1.1.2 Notes on the Illustrations
The illustrations in these Operating Instructions show the product in a simplified
form. The actual design of the product can differ from the illustration. For detailed
views and dimensions of the product please refer to the design documents.
1.1.3 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 highlighting.
Danger
Warning: Fatal Injuries
Failure to observe the warning can result in serious damage to health, or
even death.
► The arrow identifies a precautionary measure you have to take to avoid
the hazard.
Warning: Explosions
Failure to observe the warning can result in severe explosions.
► The arrow identifies a precautionary measure you have to take to avoid
the hazard.
General Information
Information on the Document
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Warning!
Warning: Serious Injuries
Failure to observe the warning 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 can result in minor or moderate damage to
health.
► The arrow identifies a precautionary measure you have to take to avoid
the hazard.
Notice
Warning: Damage to Property
Failure to observe the warning can result in serious damage to the
component or in the vicinity of the component.
► The arrow identifies a precautionary measure you have to take to avoid
the hazard.
Carry out the following steps: = Start of a set of instructions.
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.
Hint!
Further useful information.
1.2 Manufacturer address
GEA Tuchenhagen GmbH
Am Industriepark 2-10
21514 Büchen
1.3 Contact
Tel.:[phone]
Fax:[phone]
[email protected]
www.gea.com
General Information
Manufacturer address
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1.4 EU Declaration of Conformity in accordance with the EC Machinery Directive
2006/42/EC
Manufacturer: GEA Tuchenhagen GmbH
Am Industriepark 2-10
21514 Büchen
We hereby declare that the machine named below
Designation: Valve with actuator
Type: VARIVENT®
due to its design and construction as well as in the versions sold by us, meet the basic safety and health
requirements of the following guideline:
Relevant EC directives: 2006/42/EC EC Machinery Directive
Applicable harmonized standards,
in particular:
EN ISO 12100: 2010
Remarks: •This declaration will become invalid if any
alterations are made to the machine which have
not been agreed with us
•We also declare that the relevant technical
documentation for this machine has been
prepared in accordance with Annex VII, Part A,
and agree to submit the documentation on
justified request of national authorities on a data
carrier
Person authorised for compilation and handover of
technical documentation:
GEA Tuchenhagen GmbH
CE Documentation Officer
Am Industriepark 2-10
21514 Büchen, Germany
Büchen, 24 January 2020
Franz Bürmann
Managing Director i.V. Matthias Südel Head of Engineering
General Information
EU Declaration of Conformity in accordance with the EC Machinery Directive 2006/42/EC
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2 Safety
2.1 Intended use
The shut-off valve N and U are used to open and close pipe sections.
The medium should preferably flow in the opening direction of the valve disk to
avoid pipe hammers when the valve is opened or closed.
Hint!
The manufacturer will not accept any liability for damage resulting
from any use of the valve which is not in accordance with the
designated use of the valve. The risk of such misuse lies entirely with
the operator of the facility.
2.1.1 Requirements for operation
The prerequisite for reliable and safe operation of the component is proper
transportation and storage as well as professional installation and assembly.
Operating the unit within the limits of its designated use also involves adhering to
the operating, inspection and maintenance instructions.
2.1.2 Pressure equipment directive
The valve is a piece of pressure equipment (without safety function) in the sense
of the pressure equipment directive 2014/68/EU: Classified according to Annex II
in category 1.
According to the scope of directive 2014/34/EC, article 1, paragraph 2, f, the
exception of the directive applies, due to conformity with the machine directive
2006/42/EU.
The nominal diameters smaller than DN 25 are subject to article 4, paragraph 3
of the Pressure Equipment Directive which specifies sound engineering practice.
Nominal diameters ≥ IPS 4“; DN 125 valid for the fluid group II.
In the event of any deviations, GEA Tuchenhagen GmbH will supply a specific
Declaration of Conformity.
2.1.3 ATEX directive
In areas with an explosive atmosphere, only valves suitable for use in such areas
may be used.
Refer to and observe the additional operating instructions “ATEX version valves”.
For details regarding the marking of valves for potentially hazardous areas also
refer to the additional operating instructions “ATEX version valves”.
If these valves are used in areas with a potentially explosive atmosphere, you
must absolutely comply with directive 2014/34/EC with respect to all ignition
hazards.
2.1.4 Improper operating conditions
The operational safety of the component can not be guaranteed under improper
operating conditions. Therefore avoid improper operating conditions.
Safety
Intended use
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The operation of the component is not permitted if:
•Persons or objects are in the danger zone.
•Safety devices are not working or were removed.
•Malfunctions have been detected on the component.
•Damage to the component has been detected.
•Maintenance intervals have been exceeded.
2.2 Operator’s Duty of Care
The operating company of the component has a special responsibility for the
proper and safe handling of the component within their company. Only use the
component when it is in perfect operating condition in order to prevent danger to
persons and property.
This operating manual contains information that you and your employees need
for safe operation over the life of the component. 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
monitoring that these measures are observed. The following principles apply:
•Only qualified personnel may work on the component.
•The operating company must authorize personnel to carry out the relevant
tasks.
•Order and cleanliness must be maintained at the work stations and in the
entire area surrounding the component.
•Personnel must wear suitable work clothing and personal protective
equipment. As the operating company must ensure that work clothing and
personal protective equipment are used.
•Inform personnel regarding any properties of the product which might pose a
health risk and the preventative measures to be taken.
•Have a qualified first-aid representative on call during the operation. This
person must be able to initiate any necessary first-aid measures in case of an
emergency.
•Clearly define procedures, competences and responsibilities for those
working in the area of the component. Everybody must know what to do in
case of an emergency. Instruct the staff in this respect at regular intervals.
•The signs on the component must always be complete and easy to read.
Check, clean and replace the signs as necessary at regular intervals.
•Observe the Technical Data specified and the limits of use!
Hint!
Carry out regular checks. This way you can ensure that these
measures are actually observed.
Safety
Operator’s Duty of Care
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2.3 Subsequent changes
No technical modifications should ever be made to this component. Otherwise
you will have to undergo a new conformity process in accordance with the EC
Machinery Directive on your own.
In general, only original spare parts supplied by GEA Tuchenhagen GmbH
should be fitted. This ensures that the component is always operating properly
and efficiently.
2.4 General safety instructions and dangers
The component is safe to operate. It was built according to state-of-the-art
science and technology.
Nevertheless, dangers can arise from the component, if:
•the component is not used as intended
•the component is used improperly
•the component is operated under impermissible conditions
2.4.1 Principles for safe operation
Dangerous situations during operation can be avoided by safety-conscious and
proactive behaviour of the staff.
To ensure 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.
•Never touch the pipes and the valve when these components are hot! Avoid
opening the valve unless the process plants have been emptied and
depressurised.
•Observe the accident prevention regulations and all local regulations.
2.4.2 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.
Safety
Subsequent changes
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•Substances harmful to the environment must be collected and stored in
suitable containers. Clearly mark the containers.
•Dispose of lubricants as hazardous waste.
2.4.3 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.
Modifications are only permitted with the express permission of the
manufacturer.
•After completion of all work, check that the protective devices are fully
functional.
2.5 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.
2.6 Qualification of personnel
This section provides information on how the personnel working on the
component must be trained.
Operating and maintenance personnel 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 personnel to carry out work on an explosion-
protected system. 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:
•Training as a specialist for working independently on the component.
•Adequate instruction to work on the component under the supervision and
guidance of a trained specialist
Each employee must meet the following requirements to work on the component:
Safety
Supplementary Regulations
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•Personal suitability for the respective task.
•Sufficient professional qualification for the respective task.
•Received instruction about the functionality of the component.
•Received instruction about operating sequences on the component.
•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.
When working with the component, a distinction is made between the following
user groups:
User groups
Staff Qualifications
Operating personnel Adequate instruction and sound knowledge in the following areas:
•Functionality of the component
•Operating sequences on the pump
•What to do in case of an emergency
•Lines of authority and responsibilities with respect to the task
Maintenance personnel Appropriate training and a sound knowledge of the structure and
functionality of the component.
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.
2.7 Safety equipment
2.7.1 Signage
Dangerous points on the valve are indicated by warning signs, prohibition signs
and mandatory signs.
Safety
Safety equipment
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The signs and notes on the valve must always be legible. Any illegible signs must
be replaced immediately.
Signs on the valve
Sign Meaning
Fig.1
General hazard warning
Fig.2
Warning Crushing
Fig.3
Explosive atmosphere hazard warning
2.8 Residual dangers
Dangerous situations can be avoided by safety-conscious and proactive
behaviour of the staff and by wearing personal protective equipment.
Residual dangers on the valve and measures
Danger Cause Measure
Danger to life Inadvertent switch-on of the
valve
Effectively disconnect all components, effectively prevent switch-
on.
Electric power Observe the following safety rules:
1. Isolate from the power supply.
2. Take appropriate measures to prevent switch on.
3. Test absence of voltage.
4. Earthing and short-circuiting.
5. Cover or safeguard any adjacent live parts.
Spring tension in the actuator Danger to life caused by compression spring in the actuator. Do
not open the actuator but return it to GEA Tuchenhagen for
proper disposal.
Safety
Residual dangers
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Residual dangers on the valve and measures
Danger Cause Measure
Danger of injury Danger presented by moving or
sharp-edged parts
The operator must exercise caution and prudence.
For all work:
•Wear suitable work clothing.
•Never operate the machine if the cover panels are not
correctly fitted.
•Never open the cover panels during the operation.
•Never reach into openings.
As a precautionary measure, wear personal protective equipment
in the vicinity of the valve:
•Protective gloves
•Safety shoes
Environmental damage Operating materials with
properties which are harmful to
the environment
For all work:
•Collect lubricants in suitable containers.
•Dispose of lubricants in accordance with the pertinent
regulations.
2.9 Danger zones
Please observe the following notes:
Fig.4
•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 motor stool (9) or the valve housing (401/402) when the
valve is switching. Fingers can be crushed or cut off.
•On a spring-closing valve there is danger of injury when the clamp
connections (43.1/46) are opened, as the released spring pretension will
suddenly lift the actuator. Therefore, release the spring tension before
Safety
Danger zones
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detaching the clamp connection (43.1) 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.
•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.
Safety
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3 Description
3.1 Design
Fig.5
Design
No. Designation
A Actuator
B T.VIS control top
1 Sealing ring
2 Bearing
3 Sealing disk
4 Bearing disk
9 Lantern
15 Valve disk
22 Air connection
Description
Design
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Design
No. Designation
24 Electrical connection
402 Valve housing
Description
Design
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3.2 Functional description
3.2.1 Valve N
Closing Direction
Closing direction: from top to bottom
Standard: spring-to-close
Fig.6: Distinguishing Feature of Spring-To-Close Actuator (Z)
The valve is closed in the non-actuated position.
Identification:
–Green steady light (1): valve in non-actuated position
–Yellow steady light (1): valve in end position (actuated position)
Fig.7: Distinguishing Feature of Spring-To-Open Actuator (A)
The valve is open in the non-actuated position.
Identification on the T.VIS control top once the installation (SET-UP) has been
completed:
–Green steady light (1): valve in non-actuated position
–Yellow steady light (1): valve in end position (actuated position)
3.2.2 Valve U
Closing Direction
Description
Functional description
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Closing direction: from the bottom to the top
Standard: spring-to-close
Marking, type U: Ring groove (a) on the width across flats of the valve disk rod.
Fig.8: Distinguishing Feature of Spring-To-Close Actuator (Z)
The valve is closed in the non-actuated position.
Identification:
–Green steady light (1): valve in non-actuated position
–Yellow steady light (1): Valve in end position (actuated position),
distinguishing feature
Fig.9: Distinguishing Feature of Spring-To-Open Actuator (A)
The valve is open in the non-actuated position.
Identification on the T.VIS control top once the installation (SET-UP) has been
completed:
–Green steady light (1): valve in non-actuated position
–Yellow steady light (1): valve in end position (actuated position)
Description
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4 Transport and storage
4.1 Storage conditions
The valves, valve inserts or spare parts should be stored in a dry place, free of
vibrations and dust, and protected from light. To avoid damage, leave the
components in their original packaging if possible.
If, during transport or storage, the valve is going to be exposed to temperatures ≤
0°C, it must be dried beforehand and suitable measures must be taken to protect
it from damage.
Hint!
We recommend that the valve should be stored at a temperature of ≥ 5
°C for a period of 24 hours prior to any handling (disassembling the
housings / activation of actuators) so that any ice crystals formed by
condensation water can melt.
4.2 Transport
Fig.10
For transport, the following principles apply:
•When transporting the valve be sure to unscrew the control top and the switch
bar from the actuator (2) and use the screwed-in eye bolt (1), material no.
221-104.98, to lift the valve.
•Only use suitable lifting gear and slings for transporting the package units/
valves.
•Observe the pictograms on the package.
•Handle valves with care to avoid damage caused by impact or careless
loading and unloading. The outside synthetic materials are susceptible to
breaking.
•Control tops must be protected from animal and vegetable fats.
•Only allow qualified staff to transport the valve.
•Movable parts must be properly secured.
Transport and storage
Storage conditions
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