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ISO 9001
EN 29001
Installation, Operating, and Maintenance Instructions
Series 021
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
205440EC
2003-04-14
4/12
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 M 5
with solenoid :
connection „P“ for air supply
connection „R“ for exhaust
without solenoid :
connections „open“ and „closed“, quick connect fitting for 4 mm tube
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
Standard position
indicator
Position indicator
„open/close“ (Opt.)
Standard position
indicator 1xLo / 2xLg
Position indicator
1xLo / 2xLg (Opt.)
6
5
4
3
2
1
3
1
2
4
6
5
Lo
Lg
4
32
1
5
6
7
8
9
10
11
12
13
14
15
3
1
7
4
2
8
13
15
11
Lo1
Lg1
Lg2
1
2
4
1
2
4
1
2
4
9
Lg2
Lg1
Lo
6
5
4
3
2
1
6
5
4
3
2
1
3
MV
power
close
open
1
2
3
1
2
MV = coil of solenoid
Min. pulse duration:
50 ms
Lo = position indicator „open” Lg = position indicator „close“ Voltage max. 50 V DC
*) Standard specification. Specifications for optional features are provided on the dimensional drawing of the product.
