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Installation, Operating, and Maintenance Instructions Series 02 VAT Vakuumventile AG, CH-9469 Haag , Switzerland Tel ++41 81 771 61 61 Fax ++41 81 771 4 8 30 Email reception@vat.ch http://www.vat.ch M02001EB 2003 - 04 - …
Installation, Operating, and Maintenance Instructions
Series 02
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch
M02001EB
2003-04-14
2/13
Intended Use of Product
Use product for vacuum applications under the conditions indicated in chapter «Technical data» only! Other applications
are only allowed with the written permission of VAT.
Technical data
Leak rate Body, seat < 1 x 10
-9
mbar l s
-1
Pressure range 1 x 10
-9
mbar to 1.2 bar (abs)
Differential pressure on the gate In either direction 1.2 bar
Max. differential pressure at opening 30 mbar
Cycles until first service 1 million
Bake out temperature Valve body aluminum < 150°C
Valve body stainless steel < 200°C
Pneumatic actuator < 150°C
Standard position indicator < 80°C
Bakeable position indicator < 150°C (optional)
Solenoid < 50°C
Temperature difference body / gate < 40°C
Material Valve body aluminum 3.2315
Valve body stainless steel 1.4435 (AISI 316L)
Gate aluminum 3.2315
Gate stainless steel 1.4435 (AISI 316L)
Bellows end piece 1.4435 (AISI 316L)
Bellows AM 350 (AISI 633)
Bonnet seal VITON®
Gate seal VITON®
Actuation time Opening and closing < 1.5 s
Position indicator contact rating 5 A / 250 V AC, 3 A / 50 V DC
Solenoid See tag on solenoid
Further technical data according to «VAT catalog 2000».
Installation, Operating, and Maintenance Instructions
Series 02
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch
M02001EB
2003-04-14
3/13
Installation
Leave the blue foil on the valve body openings as long as possible in order to protect the valve interior from dust and
particles. The valve and seals must not be cleaned before installation. The valve is assembled at VAT in a clean
environment and sealed in a plastic bag.
Attach the valve to a clean system only. The screws on the flanges have to be tightened uniformly in crosswise order.
Connect compressed air and electrical power only if
valve is installed into the vacuum system
moving parts cannot be touched
Do not touch electrical parts under voltage.
Admissible forces
The dimensions and tolerances specified on the dimensional drawing must be met under all operating conditions.
Compressed air connection
Compressed air pressure
(min. - max. overpressure) :
4 - 7 bar / 55 - 95 psi
Use only clean, dry or slightly oiled air.
Connections:
internal threads Rp 1/8“ (for USA : 1/8“ NPT)
with solenoid : connection „P“ for air supply
connection „R“ for exhaust
without solenoid : connections „open“ and „closed“
Electrical connection
Sockets for position indicator and solenoid are supplied with the valve. Verify that control voltage matches voltage indicated
on the solenoid.
Wiring diagrams :
Solenoid for impulse actuation
Position indicator „open/close“
(Standard)
Position indicator 1xLo / 2xLg
(Optional)
3
MV
power
close
open
1
2
3
1
2
MV = coil of solenoid
Minimum pulse duration : 50 ms
6
5
4
3
2
1
3
1
2
4
6
5
Lo
Lg
Lo = position indicator „open“
Lg = position indicator „close“
Lg2
Lg1
Lo
6
5
4
3
2
1
6
5
4
3
2
1
Lo = position indicator „open“
Lg = position indicator „close“
Installation, Operating, and Maintenance Instructions
Series 02
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch http://www.vat.ch
M02001EB
2003-04-14
4/13
Operation
Normal operation
Valve with pneumatic actuator : Valve is opened and closed pneumatically.
Admissible temperature
See chapter «Technical data».
Compressed air failure
Valve closed: Valve remains closed (mechanically locked).
Valve open: Valve position is undefined.
Power failure
Valve supplied with pneumatic connection (ordering code 020 . . - . . 24) :
Valve position depends on applied solenoid valve. VAT recommends to operate all transfer valves with impulse actuated
solenoids.
Valve supplied with impulse solenoid (ordering code 020 . . - . . 44) :
Valve closed: Valve remains closed (mechanically locked).
Valve open: Valve remains open.
A started movement will be completed.
Emergency operation at power failure
In case of power failure, valve can be actuated if compressed air is available.
To actuate valve in case of power failure :
Press push-button : Valve opens
Pull push-button : Valve closes