Installation, Operating & Maintenance Instructions
Series 612 DN 40 (I.D. 1.5”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289917EA
2011-07-07
56/69
Description
Required tool
Re
m
o
v
e
val
v
e fr
om
system
1. Vent vacuum system, disconnect electrical connections and remove valve
from vacuum system.
Note: You do not need to remove the valve from the vacuum system to
replace the control and actuating unit.
Depending on
flange screws
2. Unfasten clamp coupling.
Note: If you can not access the coupling
screw, turn plate by hand until you can
access the coupling screw with Allen
Wrench.
Allen Wrench
2mm
Re
m
o
ve cont
ro
l and actuat
ing
un
it
fr
om val
v
e
uni
t
3. Unfasten and remove the 4
connection bolts and separate both
parts.
Note: Valve size DN 160 (6”) and bigger
require a shortened wrench.
For ordering number refer to «Spare
parts and accessories».
Allen Wrench
3mm
R
e
m
o
ve pl
ate
4. Unfasten all screws and remove plate
from shaft.
Allen Wrench
3mm
R
e
move and
cl
ean
mechani
cal
uni
t
5. Unfasten alternately the 2 mounting
screws little by little.
Note: If only one screw is fasten /
unfasten, the mechanical unit will be
damaged. Max. difference should be less
than 1 turn or 0.5 turn of the screws.
Allen Wrench
3mm
12 mm
