VAT 203 Series Assembly instructions

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 1/11
Vatterfly valve
with pneumatic actuator
This manual is valid for the valve ordering number(s):
203 . . .
204 . . .
The fabrication number is indicated on each product as per the label
below (or similar):
made in Switzerland
Fabrication No.: patented . .
20
. .. – . .. . – .. .. /. . ..
A
– ... .. .
Fabrication number
Explanation of symbols:
Read declaration carefully before you start any other
action!
Keep body parts and objects away from the valve
opening!
Attention! Hot surfaces; do not touch!
Product is in conformity with EC guidelines,
if applicable!
Loaded springs and/or air cushions are potential
hazards!
Disconnect electrical power and compressed air
lines. Do not touch parts under voltage!
Wear gloves!
Read these «Installation, Operating & Maintenance Instructions» and the enclosed «General
Safety Instructions» carefully before you start any other action!

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 2/11
Imprint:
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Manufacturer
Website
www.vatvalve.com
Phone
[phone]
Fax
[phone]
Email
[e-mail]
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 2008
No part of these Instructions may be reproduced in any way (photocopies, 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.

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 3/11
Contents:
1 Use of product .......................................................................................................................................................... 4
1.1 Technical data.................................................................................................................................................... 4
2 Installation................................................................................................................................................................. 5
2.1 Installation into the system................................................................................................................................. 5
2.2 Connections....................................................................................................................................................... 5
2.2.1 Compressed air connection..................................................................................................................... 5
2.2.2 Electrical connection................................................................................................................................ 5
3 Operation.................................................................................................................................................................. 6
3.1 Normal operation................................................................................................................................................ 6
3.2 Operation under increased temperature............................................................................................................ 6
3.3 Behavior in case of compressed air pressure drop............................................................................................ 6
3.4 Behavior in case of power failure....................................................................................................................... 6
4 Trouble shooting....................................................................................................................................................... 6
5 Maintenance & repairs.............................................................................................................................................. 7
5.1 Replacement of plate seal (1)............................................................................................................................ 7
5.1.1 Dismount plate from valve ....................................................................................................................... 7
5.1.2 Replace plate seal (1).............................................................................................................................. 8
5.1.3 Mount plate to valve................................................................................................................................. 8
5.2 Replacement of solenoid (4).............................................................................................................................. 8
5.3 Replacement of position indicator (7) ................................................................................................................ 9
5.4 Replacement of bonnet seal/feedthrough O-ring (9).......................................................................................... 9
6 Drawing................................................................................................................................................................... 10
7 Spare parts ............................................................................................................................................................. 11
8 Warranty................................................................................................................................................................. 11

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 4/11
1 Use of product
Use product for clean and dry indoor vacuum applications under the conditions indicated in chapter «Technical data» only!
Other applications are only allowed with the written permission of VAT.
1.1 Technical data
Leak rate: body, valve seat < 1 .10-9 mbar ls-1
Pressure range 1 .10-8 mbar to 2 bar (abs)
Differential pressure on the plate ≤1.2 bar in opening direction
≤1.6 bar in closing direction
Maximum differential pressure at opening 0.5 bar
Cycles until first service 100,000
at an operating temperature of 0 - 80°C
Admissible temperature range: valve 0 - 120°C
position indicator 0 - 80°C
solenoid 0 - 50°C
Solenoid: control voltage as specified on solenoid:
see (4) on drawing page 10
Position indicator: contact rating 0.5 A/50 V AC, 0.5 A/75 V DC, max. 10 W
Further data according to «Product Data Sheet»

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 5/11
2 Installation
2.1 Installation into the system
Use standard ISO centering rings only for installing ISO flanges!
The centering rings must fit well into the centering groove. Any clearance is prohibited. Too thick or
improperly centered rings can cause the plate to touch the centering ring if the plate is in open
position. This would damage the plate seal or interfere with the plate movement!
2.2 Connections
2.2.1 Compressed air connection
Compressed air may only be connected by an authorized expert!
Connect compressed air only when - valve is installed into the system
- moving parts cannot be touched
Compressed air connection:
•Internal thread M5 (1/8" optional) with valves without solenoid →(open/close)
•Internal thread 1/8" with valves with solenoid →(IN at the solenoid)
Compressed air pressure (min. - max. overpressure): 4 - 7 bar / 60 - 100 psi
Use clean, dry or slightly oiled air only!
2.2.2 Electrical connection
Electrical power may only be connected by an authorized expert!
Do not touch parts under voltage!
Connect electrical power only when
- valve is installed into the system
- moving parts cannot be touched
Verify that the control voltage is in accordance with the
voltage stated on the solenoid!
See (4) on drawing page 10
Plug for position indicator and solenoid are supplied with
the valve.
MV
2
1
power
2
1
MV = coil of solenoid
Plug (5) on drawing page 10
Connection of position indicator plug:
unisolate connection strain relief
1 press to open the clamp
2 insert the cable to the plug
5 – 6 mm

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 6/11
3 Operation
3.1 Normal operation
Valve is pneumatically opened and closed (double acting compressed air cylinder).
Compressed air pressure:see «2.2.1 Compressed air connection »
Voltage: according to specification on solenoid: see (4) on drawing page 10
3.2 Operation under increased temperature
See «1.1 Technical data»
3.3 Behavior in case of compressed air pressure drop
Valve position Reaction of valve
closed remains closed
open remains open
in any intermediate position plate movement is undefined
3.4 Behavior in case of power failure
Valve Reaction of valve
supplied with solenoid closes
without solenoid dependent on pneumatics connection
4 Trouble shooting
Failure Check Action
Valve cannot be
opened/closed Correct control voltage on solenoid? Apply correct voltage
Appropriate compressed air pressure? Apply compressed air pressure according to
«2.2.1 Compressed air connection»
Solenoid defective? Replace solenoid
No position indication Position indicator defective? Replace position indicator
Valve does not close tight Obstacle in the plate rotation area? Clear plate rotation area
Valve seat or seal contaminated? Clean valve seat and seal
If you need any further information, please contact one of our service centers. You can find the addresses on our website:
http://www.vat.ch

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 7/11
5 Maintenance & repairs
Under clean operating conditions, the valve does not require any maintenance during the specified cycle life.
Contamination from the process may influence the function and requires more frequent maintenance.
Before carrying out any maintenance or repairs, please contact VAT. It has to be individually decided whether the
maintenance/repair can be performed by the customer or has to be carried out by VAT. The fabrication number on the
valve
made in Switzerland
Fabrication No.: patented . .
. . . . . – . . . . – . . . . / .. . .
A
– . . . . . .
Fabrication number
has always to be specified.
All supplies (e. g. compressed air, electrical power) must be disconnected for removal/installation of the valve from/into
the system and for maintenance work.
Even with disconnected supply, loaded springs and/or air cushions in cylinders can be potential hazards.
Keep fingers and objects away from the valve opening!
Products returned to VAT must be free of harmful substances such as e.g. toxical, caustic or microbiological ones. If
products are radioactively contaminated, fill in the VAT form «Contamination and Radiation Report» and send it with the
product. The form is available at VAT. The maximum values indicated in the form must not be exceeded.
5.1 Replacement of plate seal (1)
The item numbers in brackets refer to the drawing on page 10
Valve must be removed from the system!
5.1.1 Dismount plate from valve
•Fasten valve in vertical position in a vise with soft braces (see picture)
Attention: Do not damage the sealing surface inside the bolt circle!
•If valve is provided with a solenoid, dismount it:
Remove 2 screws (6) and solenoid (4)
•Loosen screw (3), but do not unscrew it
⇒
•Open valve:
Keep any objects/body parts away from the plate moving area and
feed compressed air into the inlet «OPEN»; recommended pressure
2 bar
•Remove screw (3) and plate (2)
Attention: Between plate (2) and shaft are sometimes adjustment
washers installed, which have to be reinstalled after the maintenance!

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 8/11
5.1.2 Replace plate seal (1)
•Stick a needle into the O-ring (1) and pull it out
Attention: Do not damage the sealing surface!
•Remove support ring (11)
•Clean sealing surface and support ring (11)
•Insert support ring (11)
•Put new O-ring (1) on groove and press it first into groove
at 4 points displaced by 90° (see picture)
•Then press O-ring completely and uniformly into groove
5.1.3 Mount plate to valve
•Insert plate (2)
•Insert screw (3) completely, but do not fasten it
Attention: Between plate (2) and shaft the adjustment washers, which may have been dismounted
when the plate was dismounted, have to be reinstalled!
⇒
•Close valve:
Keep any objects/body parts away from the plate moving area and
feed compressed air into the inlet «CLOSE»; recommended pressure 2 bar
•Fasten screw (3)
torque: DN [mm] 63 80 100 160 200
[Nm] 3.5 6 8 15 30
•Mount solenoid (4)
5.2 Replacement of solenoid (4)
The item numbers in brackets refer to the drawing on page 10
•Switch off compressed air
•Disconnect compressed air line
•Switch off electrical power
•Remove plug (5) from solenoid
•Remove 2 screws (6) and solenoid (4)
•Clean sealing surface, if necessary
•Mount new solenoid (4) to valve
Attention: Make sure that voltage is correct!
•Connect plug (5) to solenoid (4)
•Connect compressed air
•Switch on electrical power

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 9/11
5.3 Replacement of position indicator (7)
The item numbers in brackets refer to the drawing on page 10
•Switch off electrical power
•Remove plug from position indicator (7)
•Remove screws (8)
•Remove position indicator (7)
•Fasten new position indicator (7) by the screws (8)
•Connect plug to position indicator (7)
•Switch on electrical power
5.4 Replacement of bonnet seal/feedthrough O-ring (9)
The item numbers in brackets refer to the drawing on page 10
Valve must be removed from the system!
•Dismount plate from valve according to «5.1.1 Dismount plate from
valve»
•Remove both screws (10)
•Vertically withdraw actuator with shaft
•Remove O-ring (9)
•Clean sealing surfaces on body and shaft
•Put grease layer on shaft (see picture)
•Lubricate new O-ring (9) with plenty of vacuum grease
(see «7 Spare parts») and insert it
•Insert actuator with shaft
•Insert both screws (10) and fasten them alternately step-by-step
•Mount plate to valve according to «5.1.3 Mount plate to valve»

Installation, Operating & Maintenance Instructions
Series 203 + 204, DN 63 - 200 (I.D. 2½ - 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [e-mail] www.vatvalve.com 229793EE
2006-03-17 10/11
6 Drawing