VAT 650 Series Installation, Operating, & Maintenance Instructions page 83

39. If necessary adjust pendulum plate:
a. Move pendulum plate a little towards
open (e.g. position 1% of full stroke)
b. Use adjustment screw at flange side
of actuator (1 turn clockwise adjusts
pendulum plate by about 3mm
towards open).
c. Restart valve in menu
'System/Recovery'
d. Check pendulum plate position
according step 38 and redo
adjustment procedure if necessary.
40. Clean the valve sealing surface
41. Clean the valve bonnet o-ring
42. Mount valve bonnet.
• Tightening torques for bonnet
screws, see in table to the right.
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
Installation, Operating & Maintenance Instructions
Series 650 DN 100-250 (I.D. 4" - 10"), CC-Link
D e s c r i p t i o n
Adjusting screw mounted either in actuator
position «B1 standard» or «B2 option»
Max. torque 6 Nm
Required tool
Allen wrench
2mm
Lint-and dust-
free towel a little
soaked with
isopropyl alcohol
Lint-and dust-
free towel
Allen wrench
5mm
280672EB
83/94
2010-12-15