VAT 75.0 Series Assembly instructions

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 1/12
Fast closing valve
with pneumatic actuator
This manual is valid for the valve ordering number(s):
75036- . E44- . . . .
75040- . E44- . . . .
75044- . E44- . . . .
75046- . E44- . . . .
The fabrication number is indicated on each product as per the label
below (or similar):
made in Sw itz erland
Fabrication No.:
patented
..
75
0
..
–
. . . .
–
. . . . / . . ..
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 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 2/12
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 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 3/12
Contents:
1Use of product .......................................................................................................................................................... 4
1.1 Technical data.................................................................................................................................................... 4
2Installation................................................................................................................................................................. 5
2.1 Unpacking.......................................................................................................................................................... 5
2.2 Installation into the system................................................................................................................................. 5
2.3 Connections....................................................................................................................................................... 6
2.3.1 Compressed air connection ..................................................................................................................... 6
2.3.2 Electrical connection................................................................................................................................ 7
3Operation.................................................................................................................................................................. 8
3.1 Normal operation................................................................................................................................................ 8
3.2 Operation under increased temperature............................................................................................................ 8
3.3 Behavior in case of compressed air pressure drop............................................................................................ 8
3.4 Behavior in case of power failure....................................................................................................................... 8
4Trouble shooting....................................................................................................................................................... 9
5Maintenance & repairs.............................................................................................................................................. 9
5.1 Exchange of Seat O-Ring ................................................................................................................................ 10
6Drawing................................................................................................................................................................... 11
7Spare parts ............................................................................................................................................................. 12
8Warranty................................................................................................................................................................. 12

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 4/12
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 <1 .10-10 mbar ls-1
- Seat <1 .10-9 mbar ls-1
Pressure range 1 .10-10 mbar to 2.0 bar
Differential pressure on the gate in closing direction ≤2.0 bar
in opening direction ≤1.2 bar (DN63, DN100) / 0.5 bar (DN160) / 0.07 bar (DN200)
Max. diff. pressure at opening in closing direction ≤0.6 bar (DN63) / ≤0.18 bar (DN100) /
≤0.05 bar (DN160) / ≤0.025 bar (DN200)
in opening direction ≤1.0 bar
Molecular flow conductance 200 (DN63) / 700 (DN100) / 1700 (DN160) / 2400 (DN200) ls-1
Cycles until first service 2000 under clean operating conditions
Bake-out temperature
- Valve Standard ≤200°C (max. 200h)
Radiation Resistant 106Gy ≤120°C (max. 100h)
- Actuator ≤50°C
- Solenoid ≤50°C
- Postion Indicator ≤50°C
Temperature difference seat/gate ≤40°C
Heating and cooling rate ≤80°Ch-1
Material
- Body 1.4404, 1.4435, AISI 316L
- Mechanism 1.4435, AISI 316L / 3.7035, Titanium
- Bellows 1.4404, AISI 316L
Seal
- Bonnet metal
- Gate
Standard FKM (Viton®)
Radiation resistant 106Gy EPDM
- Actuator NBR, PTFE/Nitril
Mounting position any; counter seat side should look in direction of the air inrush
Position indicator: contact rating ≤50 V AC / DC; ≤1.2 A

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 5/12
Radiation resistance
- Shutter Standard 105Gy (107rad)
Radiation resistant 106Gy 106Gy (108rad)
- Actuator
Standard 104Gy (106rad)
Radiation resistant 105Gy 105Gy (107rad)
- Position indicator
Standard 104Gy (106rad)
Radiation resistant 106Gy 106Gy (108 rad)
Compressed air connection R 1/8“ (1/8“ NPT for USA)
Compressed air pressure (overpressure) 5 – 8 bar / 70 – 110 psig
Solenoid (opening)
- Supply voltage 24V DC
- Power required 2.5 W
Closing time (DN63/100/160/200) <13 / 15 / 23 / 40 ms (response time of sensor is not included)
Opening time 7 s
Weight (DN63/100/160/200) 28 / 32 / 36 kg / 39kg // 62 / 70 / 80 / 86 lbs
2 Installation
2.1 Unpacking
Caution! dirt sensitive product. Touching the product or parts thereof with bare hands increases the desorption
rate.
Always wear clean lint-free gloves and use clean tools when working in this area.
2.2 Installation into the system
The valve must not support other components and has to be protected from forces of the system (e.g. by bellows
sections).

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 6/12
2.3 Connections
2.3.1 Compressed air connection
Connect compressed air only if
- the valve has been installed into the vacuum system
- moving parts cannot be touched
Connect compressed air to (internal thread R 1/8“, 1/8“ NPT for USA, see dimensional drawing)
Compressed air pressure (min. - max. overpressure): 5 - 8 bar / 70 - 110 psi
Use only clean, dry or slightly lubricated air!
The air lines have to be flushed or even cleaned before they are connected to the valve.
Only clean compressed air may be used for operating the valve.
Commercially available water separators and filters have to be installed.
To avoid malfunctions of the solenoid, we recommend to seal the thread of the compressed air inlet
with liquid plastic (e.g. Loctite) and not by means of Teflon ribbon or similar fibrous material.

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 7/12
2.3.2 Electrical connection
Note: The controller has to be disconnected from the mains before it is connected to or
disconnected from the valve.
Before the controller is connected to the mains make sure that
-the voltage set inside the controller matches the mains voltage (see label near mains socket)
- the opening of the valve is completely free and the plate can move without obstruction
Do not touch any electrically charged parts!
Connect electrical power only if
- valve has been installed into the vacuum system
- moving parts cannot be touched
Electrical connection between fast closing valve and controller is performed with a 12 pole plug and a single connection
cabel according to the following drawing.
Wiring diagram 12 pole plug

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 8/12
3 Operation
3.1 Normal operation
Warning: Keep fingers and objects away from the valve opening and from slot of the distance piece
between valve body and actuator!
The fast closing valve series 75.0 may only be operated by the controller VF-2 (series 77). Start-up and operation of the
complete system is described in a separate manual.
The valve is closed and opened by compressed air. The cylinder is permanently maintained under compressed air
pressure.
Closing is initiated by solenoids, which trigger the pressure air reservoir. After triggering the compressed air pressure acts
immediately on the cylinder. This results in an extremely short closing time. The final stage of closing is pneumatically
dampened.
To open the valve, the cylinder is actuated by compressed air via a solenoid. The cylinder is filled with compressed air
again, when the piston reaches the end position “open“.
3.2 Operation under increased temperature
See «1.1 Technical data»
3.3 Behavior in case of compressed air pressure drop
valve open: no change
during opening: valve closes but is not leak tight
valve closed: valve remains leaktight until air pressure is diminished by natural leakage of the pneumatic
during opening: does not open completely until compressed air is available again)
We recommend to use an emergency air reservoir at the compressed air input.
3.4 Behavior in case of power failure
The behaviour at power failure can be set inside the controller, either for «no change» or «valve closes».

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 9/12
4 Trouble shooting
Failure Check Action
Valve does not close/open
Power available? Compressed air available?
Coil of solenoid defect?
Check voltage!
Check compressed air pressure!
Check coil of solenoid!
Leak at gate Gate seal clean?
Valve seat clean?
Compressed air pressure?
Clean gate seal!
Clean valve seat!
Replace gate seal!
Apply correct compressed air
pressure!
Leak at the body Flange seal leaktight?
Bonnet seal leaktight?
Screws at bonnet tightend?
Check flange seal!
Check bonnet seal!
Retighting of the bonnet screws!
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
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.

Installation, Operating & Maintenance Instructions
Series 75.0, DN 63-200 CF-F (I.D. 2½“- 8")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel [phone] Fax [phone] [email protected]om www.vatvalve.com 280717EA
2009-03-05 10/12
5.1 Exchange of Seat O-Ring
In order to exchange the seat O-ring you have to release the compressed air from the air cylinder to avoid accidental
closing of the valve. To achieve this:
-close the valve
-unplug air supply
-control the valve to open to release the compressed air pressure
The plate will be in an intermediate position defined by the force of gravity and the spring force of the bellows.
Now you can replace the O-Ring (63/2) without any danger.