VAT 190 Series Assembly instructions

Installation, Operating &
Maintenance Instructions
600242EA
Edition 2013-08-12
Large vacuum gate valve
with double acting pneumatic actuator
Series 190
DN 900–1250 mm (I. D. 36"–50")
This manual is valid for the following product ordering numbers:
19059-.E14/24/34/44
19060-.E14/24/34/44
19062-.E14/24/34/44
Sample picture
+0.10
+0.30
-0.30
-0.10
ISO13715
Sauberkeitsstufe1=mediumberührend
FrontPage
Design
1
3
1Sealingsurface
2Bodylowerpart
3Bodyupperpart
4Actuator
2
4
Unpacking
Unpacking(2)
1
2
3
1FlangeA
2FlangeB
3Screws
1
2
3
4
5
6
7
Maintenace
1Liftingropes
2LoadRing
3Screws/Pins
4Bodyupperpart
5Bonnetseal
6Bearings
7Bodylowerpart
900-1250
1:20
575397
Blatt /
WerkstoffBez.
Datum
VAT-Artikelnummer
VAT Vakuumventile AG
Index
höchsteNr.
Gezeichnet
Massstab
Oberfl.[mm2]
Zünd R.
Gewicht[kg]
-
1
Zeichnung für MBA
---
3DModellnummer
25.01.13
Alle VAT-Normdokumente,aufdie in dieser Zeichnung verwiesen wird, stehen auf der Internetseite www.vat.info zur Verfügung. Sie dürfen nur im Zusammenhang mit dieserZeichnung verwendet werden.
1634.861
575394
Kundennummer
WerkstoffNr.
Gewindedarstellung
A2 232732
Diese Zeichnung bleibt unser geistiges Eigentum. Sie darf ohne unsere schriftliche Einwilligung weder kopiert, vervielfältigt noch dritten Per- sonen mitgeteilt oder zugänglich gemacht werden.
nachVATNormN-1016
Index-Zch.Nr.
190
CH-9469 Haag ,Switzerland
Tel [phone] Fax [phone]
Index
Projektion E
-
Ursprung
=Q-Merkmalsbezeichnung
Status
R
DN
Zeichnungsnummer
59639951.24
19062-PE44-0003 A
InArbeit
IN ARBEIT
1
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
Tolerierungsgrundsatz ISO 8015: Unabhängigkeitsprinzip
- - -
keine

Series 190
2/25
Edition 2013-08-12
600242EA
Imprint
Manufacturer
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Website:
Phone:
Fax:
Email:
www.vatvalve.com
[phone]
[phone]
[email protected]
Publisher
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Editor
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Print
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Copyright
© VAT Vakuumventile AG 2013
No part of these instructions may be reproduced in any way (photo-
copies, microfilms or any other reproduction processes) nor may it be
manipulated with electronic systems, duplicated or distributed without
written permission from VAT. Offenders are liable to pay damages.
The original VAT firmware and updated state of the art versions of the
VAT firmware are intended for use with VAT products. The VAT firmware
contains a limited, time unlimited user license. The VAT firmware may not
be used for purposes other than those intended nor is it permitted to
make copies of the VAT firmware. In particular, it is strictly forbidden to
give copies of the VAT firmware to other people.
The use of trade names, brand names, trademarks, etc. in these
Instructions does not entitle third parties to consider these names to be
unprotected and to use them freely. This is in accordance with the
meaning of the laws and acts covering brand names and trademarks.

Series 190
600242EA
Edition 2013-08-12
3/25
Contents
1Description of product........................................................................4
1.1 Identification of product.......................................................................................4
1.2 Use of product.....................................................................................................4
1.3 Related documents.............................................................................................4
1.4 Important information..........................................................................................4
1.5 Technical data.....................................................................................................4
2Safety ...................................................................................................5
2.1 Compulsory reading material..............................................................................5
2.2 Danger levels......................................................................................................5
2.3 Personnel qualifications......................................................................................6
2.4 Safety labels........................................................................................................6
3Design and Function...........................................................................7
3.1 Design.................................................................................................................7
3.2 Function ..............................................................................................................7
4Installation...........................................................................................8
4.1 Unpacking...........................................................................................................8
4.2 Installation into the system..................................................................................9
4.2.1 Admissible forces and bending moments.............................................10
4.3 Compressed air connection..............................................................................11
4.4 Electrical connection.........................................................................................11
5Operation...........................................................................................12
5.1 Normal operation...............................................................................................12
5.2 Operation under increased temperature...........................................................12
5.3 Behavior in case of compressed air pressure drop ..........................................12
5.4 Behavior in case of power failure......................................................................12
5.4.1 Manual emergency operation...............................................................12
5.5 Trouble shooting ...............................................................................................14
6Maintenance ......................................................................................15
6.1 Maintenance intervals.......................................................................................15
6.2 Required tools...................................................................................................15
6.3 Replacement of valve gate seal / bonnet seal..................................................16
7Repairs...............................................................................................19
8Dismounting and Storage.................................................................20
8.1Dismounting......................................................................................................21
8.2 Storage..............................................................................................................21
9Packaging and Transport.................................................................22
9.1 Packaging .........................................................................................................23
9.2 Transport...........................................................................................................23
10 Disposal.............................................................................................24
11 Spare parts ........................................................................................25

DESCRIPTION OF PRODUCT
Series 190
4/25
Edition 2013-08-12
600242EA
1 Description of product
1.1 Identification of product
The fabrication number and order number are fixed on the product directly or by means of
an identification plate.
made in Switzerland
Fabrication No.:
190..-....-..../....
A-......


Fabrication number
Order number
1.2 Use of product
Use product for clean and dry vacuum applications only. Other applications are only allowed
with the written permission of VAT.
1.3 Related documents
Product data sheet
Dimensional drawing
1.4 Important information
This symbol points to a very important statement that requires particular
attention.
Example:
VAT disclaims any liability for damages resulting from inappropriate packaging.
1.5 Technical data
See product data sheet and dimensional drawing.

Series 190
SAFETY
600242EA
Edition 2013-08-12
5/25
2 Safety
2.1 Compulsory reading material
Read this chapter prior to performing any work with or on the product. It contains important
information that is significant for your own personal safety. This chapter must have been
read and understood by all persons who perform any kind of work with or on the product
during any stage of its serviceable life.
NOTICE
Lack of knowledge
Failing to read this manual may result in property damage.
Firstly, read manual.
These Installation, Operating & Maintenance Instructions are an integral part
of a comprehensive documentation belonging to a complete technical
system. They must be stored together with the other documentation and
accessible for anybody who is authorized to work with the system at any
time.
2.2 Danger levels
DANGER
High risk
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING
Medium risk
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION
Low risk
Indicates a hazardous situation which, if not avoided, may result in minor or
moderate injury.
NOTICE
Command
Indicates a hazardous situation which, if not avoided, may result in property
damage.

SAFETY
Series 190
6/25
Edition 2013-08-12
600242EA
2.3 Personnel qualifications
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
2.4 Safety labels
Label
Part No.
Location on valve
T-9001-155
Protective cover
405300
Body cover and actuator
Table 2-1

Series 190
DESIGN AND FUNCTION
600242EA
Edition 2013-08-12
7/25
3 Design and Function
3.1 Design
1 Sealing surface
2 Body lower part
3 Body upper part
4 Actuator
Figure 3-1
3.2 Function
The valve features the VATLOCK sealing technology. This means, the valve is mechani-
cally locked in the closed position. In the open position, the mechanism is not locked. Leaf
springs hold gate and counter plate against the carriage with the ball retainers. The ball
pairs are in the detents. For closing, the mechanism is moved forward into the closing
position. The locking starts after the leaf spring stop touches the body. The ball retainers
move the ball pairs out of the detents. Gate and counter plate are spread apart. The gate
seal is pressed against the sealing surface without scuffing. The arrangement of the ball
pairs ensures an increase of the sealing force with vacuum on either side of the gate.
During opening the movements proceed in the reverse order; see «Figure 3-2».
1 Valve gate
2 Counter-plate
3 Leaf springs
4 Ball pairs
5 Ball detents
6 Gate seal
7 Spring stop
Figure 3-2
+0.10
+0.30
-0.30
-0.10
ISO13715
Sauberkeitsstufe1=mediumberührend
FrontPage
Design
1
3
1Sealingsurface
2Bodylowerpart
3Bodyupperpart
4Actuator
2
4
Unpacking
Unpacking(2)
1
2
3
1FlangeA
2FlangeB
3Screws
1
2
3
4
5
6
7
Maintenace
1Liftingropes
2LoadRing
3Screws/Pins
4Bodyupperpart
5Bonnetseal
6Bearings
7Bodylowerpart
900-1250
1:20
575397
Blatt /
WerkstoffBez.
Datum
VAT-Artikelnummer
VAT Vakuumventile AG
Index
höchsteNr.
Gezeichnet
Massstab
Oberfl.[mm2]
Zünd R.
Gewicht[kg]
-
1
Zeichnung für MBA
---
3DModellnummer
25.01.13
Alle VAT-Normdokumente,aufdie in dieserZeichnung verwiesen wird, stehen auf der Internetseite www.vat.info zur Verfügung. Sie dürfen nur im Zusammenhang mit dieserZeichnung verwendet werden.
1634.861
575394
Kundennummer
WerkstoffNr.
Gewindedarstellung
A2 232732
Diese Zeichnung bleibt unser geistiges Eigentum. Sie darf ohne unsere schriftliche Einwilligung weder kopiert, vervielfältigt noch dritten Per- sonen mitgeteilt oderzugänglich gemacht werden.
nachVATNormN-1016
Index-Zch.Nr.
190
CH-9469 Haag , Switzerland
Tel [phone] Fax[phone]
Index
Projektion E
-
Ursprung
=Q-Merkmalsbezeichnung
Status
R
DN
Zeichnungsnummer
59639951.24
19062-PE44-0003 A
InArbeit
IN ARBEIT
1
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
Tolerierungsgrundsatz ISO 8015: Unabhängigkeitsprinzip
- - -
keine

INSTALLATION
Series 190
8/25
Edition 2013-08-12
600242EA
4 Installation
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Heavy weight
Physical overstraining.
Use a crane to lift the product.
4.1 Unpacking
Make sure that the supplied products are in accordance with your order.
Inspect the quality of the supplied products visually. If it does not meet
your requirements, please contact VAT immediately.
Store the original packaging material. It may be useful if products must be
returned to VAT.
The valve can be lifted only at the load rings threats;
see «Figure 4-1» below.
1 Load ring for
valve lifting
Figure 4-1
+0.10
+0.30
-0.30
-0.10
ISO13715
Sauberkeitsstufe1=mediumberührend
FrontPage
Design
1
3
1Sealingsurface
2Bodylowerpart
3Bodyupperpart
4Actuator
2
4
Unpacking
Unpacking(2)
1
2
3
1FlangeA
2FlangeB
3Screws
1
2
3
4
5
6
7
Maintenace
1Liftingropes
2LoadRing
3Screws/Pins
4Bodyupperpart
5Bonnetseal
6Bearings
7Bodylowerpart
900-1250
1:20
575397
Blatt /
WerkstoffBez.
Datum
VAT-Artikelnummer
VAT Vakuumventile AG
Index
höchsteNr.
Gezeichnet
Massstab
Oberfl.[mm2]
Zünd R.
Gewicht[kg]
-
1
Zeichnung für MBA
---
3DModellnummer
25.01.13
Alle VAT-Normdokumente,aufdie in dieserZeichnung verwiesen wird, stehen auf der Internetseite www.vat.info zur Verfügung. Sie dürfen nur im Zusammenhang mit dieserZeichnung verwendet werden.
1634.861
575394
Kundennummer
WerkstoffNr.
Gewindedarstellung
A2 232732
Diese Zeichnung bleibt unser geistiges Eigentum. Sie darf ohne unsere schriftliche Einwilligung weder kopiert, vervielfältigt noch dritten Per- sonen mitgeteilt oderzugänglich gemacht werden.
nachVATNormN-1016
Index-Zch.Nr.
190
CH-9469 Haag , Switzerland
Tel [phone] Fax [phone]
Index
Projektion E
-
Ursprung
=Q-Merkmalsbezeichnung
Status
R
DN
Zeichnungsnummer
59639951.24
19062-PE44-0003 A
InArbeit
IN ARBEIT
1
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
Tolerierungsgrundsatz ISO 8015: Unabhängigkeitsprinzip
- - -
keine
1

Series 190
INSTALLATION
600242EA
Edition 2013-08-12
9/25
4.2 Installation into the system
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Do not connect or supply electrical power and compressed air before the
product is completely mounted in the system.
NOTICE
Contamination
Product may get contaminated.
Always wear cleanroom gloves when handling the product.
NOTICE
Inappropriate tools
Sealing surfaces may get damaged.
Do not use sharp-edged tools.
NOTICE
Wrong tightening torque
Valve body and screws may get damaged.
Use tightening torque according the size of the screws.
NOTICE
Too long screws
Valve body may get deformed and / or malfunctions may occur.
Use only screws recommended by VAT.
1. Remove protective covers from body flanges.
2. Clean sealing surfaces and seals of both flanges;
see (1) and (2) according to «Figure 4-2» on page 10.
The valve seat side is marked with the symbol « » on flange «A».
3. Lift the valve to the mounting position, use only the load rings; see «Figure 4-1» on
page 8.
4. Mount the four screws (3) according to «Figure 4-2» on page 10, evenly in crosswise
order until the seal touches the sealing surface.

INSTALLATION
Series 190
10/25
Edition 2013-08-12
600242EA
5. Tighten all screws with the torques appropriate for their property classes.
1 Flange A
2 Flange B
3 Screws
Figure 4-2
4.2.1 Admissible forces and bending moments
Forces from evacuating the system, from the weight of other components or
from baking can lead to deformation of the valve body and to malfunction of
the valve. The stress has to be relieved by suitable means; see «Table 4-1»
below.
The following forces or bending moments are admissible:
DN (nom. I.D.)
Axial tensile or com-
pressive force «FA»
Bending moment
«M»
mm
inch
N
lbf
Nm
lbf ∙ft
900
36
9800
2200
1274
940
1000
40
9800
2200
1372
1015
1250
50
9800
2200
1470
1090
If a combination of both forces («FA» and «M») occurs, the values
mentioned above are invalid. Please contact VAT for more
information.
Table 4-1
+0.10
+0.30
-0.30
-0.10
ISO13715
Sauberkeitsstufe1=mediumberührend
FrontPage
Design
1
3
1Sealingsurface
2Bodylowerpart
3Bodyupperpart
4Actuator
2
4
Unpacking
Unpacking(2)
1
2
3
1FlangeA
2FlangeB
3Screws
1
2
3
4
5
6
7
Maintenace
1Liftingropes
2LoadRing
3Screws/Pins
4Bodyupperpart
5Bonnetseal
6Bearings
7Bodylowerpart
900-1250
1:20
575397
Blatt /
WerkstoffBez.
Datum
VAT-Artikelnummer
VAT Vakuumventile AG
Index
höchsteNr.
Gezeichnet
Massstab
Oberfl.[mm2]
Zünd R.
Gewicht[kg]
-
1
Zeichnung für MBA
---
3DModellnummer
25.01.13
Alle VAT-Normdokumente,auf die in dieser Zeichnung verwiesen wird, stehen auf der Internetseite www.vat.info zur Verfügung. Sie dürfen nur im Zusammenhang mit dieserZeichnung verwendet werden.
1634.861
575394
Kundennummer
WerkstoffNr.
Gewindedarstellung
A2 232732
Diese Zeichnung bleibt unser geistiges Eigentum. Sie darf ohne unsere schriftliche Einwilligung weder kopiert, vervielfältigt noch dritten Per- sonen mitgeteilt oder zugänglich gemacht werden.
nachVATNormN-1016
Index-Zch.Nr.
190
CH-9469 Haag , Switzerland
Tel [phone] Fax [phone]
Index
Projektion E
-
Ursprung
=Q-Merkmalsbezeichnung
Status
R
DN
Zeichnungsnummer
59639951.24
19062-PE44-0003 A
InArbeit
IN ARBEIT
1
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
Tolerierungsgrundsatz ISO 8015: Unabhängigkeitsprinzip
- - -
keine
FA M

Series 190
INSTALLATION
600242EA
Edition 2013-08-12
11/25
4.3 Compressed air connection
WARNING
Valve in open position
Risk of injury when compressed air is connected to the valve.
Connect compressed air only when:
–valve is installed in the vacuum system
–moving parts cannot be touched
Use clean, dry or slightly oiled air only.
Admissible air pressure range, see product data sheet.
1. Connect compressed air according to the product data sheet and dimensional drawing.
4.4 Electrical connection
DANGER
Electric shock
Parts being under voltage will result in serious injury or death.
Do not touch parts being under voltage.
NOTICE
Wrong voltage
Electrical components may get damaged.
Supply electrical components with the correct voltage.
1. Connect solenoid valve according to the product data sheet and dimensional drawing.
2. Connect position indicator according to the product data sheet and dimensional
drawing.

OPERATION
Series 190
12/25
Edition 2013-08-12
600242EA
5 Operation
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Do not operate before product is installed completely into the vacuum system.
5.1 Normal operation
Valve is opened and closed pneumatically.
5.2 Operation under increased temperature
Maximum allowed temperature, see product data sheet.
5.3 Behavior in case of compressed air pressure drop
See product data sheet.
5.4 Behavior in case of power failure
See product data sheet.
5.4.1 Manual emergency operation
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Keep human body parts away from movable parts.

Series 190
OPERATION
600242EA
Edition 2013-08-12
13/25
Standard solenoid valve
To open the valve:
Push and turn the slotted screw (1) clockwise to its stop.
To close the valve:
Turn the slotted screw (1) counter-clockwise to its stop.
1 Slotted screw
Figure 5-1
For remote operation make sure that the slotted screw is turned counter-clockwise
to its stop.
Impulse solenoid valve
To close the valve:
Push the button (3) –coil CLOSE
To open the valve:
Push the button (2) –coil OPEN
1 Coil OPEN
2 Button of coil OPEN
3 Button of coil CLOSE
4 Coil CLOSE
Figure 5-2

OPERATION
Series 190
14/25
Edition 2013-08-12
600242EA
5.5 Trouble shooting
Failure
Check
Action
See
Valve does not
close / open
Air pressure
Connect
compressed air
«4.3 Compressed air
connection»
Operating
pressure
Adjust operating
pressure
Product data sheet
Voltage at
solenoid valve
Connect voltage
«4.4 Electrical connection»
Leak at gate
Gate seal all
right?
Replace gate
seal
«6.3 Replacement of valve
gate seal / bonnet seal»
Gate damaged or
contaminated?
Contact VAT
www.vatvalve.com
Operating
pressure
Adjust operating
pressure
Product data sheet
Leak at body
Bonnet seal and
sealing surface all
right?
Clean sealing
surface, if
necessary,
replace bonnet
seal
«6.3 Replacement of valve
gate seal / bonnet seal»
Table 5-1
If you need any further information, please contact one of our service centers. You will find
the addresses on our website www.vatvalve.com.

Series 190
MAINTENANCE
600242EA
Edition 2013-08-12
15/25
6 Maintenance
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Heavy weight
Physical overstraining.
Use a crane to lift the valve insert.
WARNING
Hazardous components
Human body parts may get jammed and severely injured.
Before starting maintenance:
–disconnect compressed air supply
–disconnect electrical power supply
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Keep human body parts away from movable parts.
6.1 Maintenance intervals
Under clean operating conditions the valve does not require any maintenance until 10 000
cycles; see product data sheet. After these cycles, VAT recommends to get in contact with
the service center.
For more information or a general overhaul please contact one of our service centers. You
will find the addresses on our website www.vatvalve.com.
6.2 Required tools
Torque wrench
Cleanroom wiper soaked with alcohol (2% methyl ethyl ketone)

MAINTENANCE
Series 190
16/25
Edition 2013-08-12
600242EA
6.3 Replacement of valve gate seal / bonnet seal
WARNING
Loaded spring steel sheet
Human body parts may get jammed and severely injured.
Do not put human body parts between valve gate and spring steel sheet.
NOTICE
Contamination
Product may get contaminated.
Always wear cleanroom gloves when handling the product.
NOTICE
Inappropriate tools
Sealing surfaces may get damaged.
Do not use sharp-edged tools.
1 Lifting ropes
2 Load ring
3 Body cover screws /
pins
4 Bonnet seal
5 Body lower part
6 Bearings
7 Body upper part
Figure 6-1
+0.10
+0.30
-0.30
-0.10
ISO13715
Sauberkeitsstufe1=mediumberührend
FrontPage
Design
1
3
1Sealingsurface
2Bodylowerpart
3Bodyupperpart
4Actuator
2
4
Unpacking
Unpacking(2)
1
2
3
1FlangeA
2FlangeB
3Screws
1
2
3
4
5
6
7
Maintenace
1Liftingropes
2LoadRing
3Screws/Pins
4Bodyupperpart
5Bonnetseal
6Bearings
7Bodylowerpart
900-1250
1:20
575397
Blatt /
WerkstoffBez.
Datum
VAT-Artikelnummer
VAT Vakuumventile AG
Index
höchsteNr.
Gezeichnet
Massstab
Oberfl.[mm2]
Zünd R.
Gewicht[kg]
-
1
Zeichnung für MBA
---
3DModellnummer
25.01.13
Alle VAT-Normdokumente, auf die in dieser Zeichnung verwiesen wird, stehen auf der Internetseite www.vat.info zur Verfügung. Sie dürfen nur im Zusammenhang mit dieser Zeichnung verwendet werden.
1634.861
575394
Kundennummer
WerkstoffNr.
Gewindedarstellung
A2 232732
Diese Zeichnung bleibt unser geistiges Eigentum. Sie darf ohne unsere schriftliche Einwilligung weder kopiert, vervielfältigt noch dritten Per- sonen mitgeteilt oder zugänglich gemacht werden.
nachVATNormN-1016
Index-Zch.Nr.
190
CH-9469 Haag , Switzerland
Tel [phone] Fax [phone]
Index
Projektion E
-
Ursprung
=Q-Merkmalsbezeichnung
Status
R
DN
Zeichnungsnummer
59639951.24
19062-PE44-0003 A
InArbeit
IN ARBEIT
1
1 2 3 4 5 6 7 8 9 10 11
A
B
C
D
E
F
G
H
Tolerierungsgrundsatz ISO 8015: Unabhängigkeitsprinzip
- - -
keine

Series 190
MAINTENANCE
600242EA
Edition 2013-08-12
17/25
1. Vent chambers on either side to atmospheric pressure.
2. Open the valve.
3. Disconnect electrical power supply.
4. Remove the screws (3) from the body upper part (7) in crosswise order;
see «Figure 6-1» on page 16.
5. Lift actuator / mechanism unit carefully from body without touching the body wall and
sealing surfaces.
Do not touch the actuator with the lifting ropes, if you lift the actuator +
mechanism out of the valve body!
6. Move the mechanism unit with the body upper part to a clean, safe table for
maintenance.
7. Disconnect compressed air supply.
8. If the mechanism unit is out of the valve body you have the opportunity to clean the
mechanism unit with alcohol.
9. If the O-rings at the gate and the bonnet flange are not damaged you should clean
them with cleanroom wiper.
Do not clean the O-ring with alcohol, because alcohol may damage the
surface of the O-rings, we recommend to treat the O-rings with a small
amount of vacuum grease.
10. If the O-rings at the gate unit and the bonnet flange are damaged, they have to be
changed.
11. Take out the gate O-ring with the O-ring removal tool.
12. Put some slight vacuum grease on the new gate O-ring.
13. Put in the new gate O-ring into the gate groove.
14. Take out the bonnet O-ring.
15. Put some slight vacuum grease on the new bonnet O-ring.
16. Put in the new bonnet O-ring into the bonnet flange groove.
17. Connect compressed air supply and put air on bring the mechanism into open position.
18. Lift the actuator / mechanism unit back into the valve body and do not touch any
sealing surfaces.
19. Tighten the screws (3) from the body upper part (7) in crosswise order with the correct
tightening torque.

MAINTENANCE
Series 190
18/25
Edition 2013-08-12
600242EA
20. Connect electrical power supply.
21. Close the valve.
Valve is ready for use.

Series 190
REPAIRS
600242EA
Edition 2013-08-12
19/25
7 Repairs
Repairs may only be carried out by the VAT service staff. In exceptional cases, the
customer is allowed to carry out the repairs, but only with the prior consent of VAT.
Please contact one of our service centers. You will find the addresses on our website
www.vatvalve.com.

DISMOUNTING AND STORAGE
Series 190
20/25
Edition 2013-08-12
600242EA
8 Dismounting and Storage
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Heavy weight
Physical overstraining.
Use a crane to lift the product.
WARNING
Hazardous components
Human body parts may get jammed and severely injured.
Before dismounting the product
–disconnect compressed air supply
–disconnect electrical power supply
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Keep human body parts away from movable parts.
NOTICE
Contamination
Product may get contaminated.
Always wear cleanroom gloves when handling the product.