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
57/69
Description
Required tool
6. Remove mechanical unit and clean
shaft.
Seal
r
e
moval
and
val
v
e c
leani
ng
7. Remove o-rings.
8. Clean shaft feedthrough and valve
body.
Lint and dust
free cloth
soaked with
isopropyl
alcohol
9. Lubricate seal contact surface of
valve body with a slight film of
vacuum grease (0.025 ml).
10. Lubricate each o-ring with a slight
film of vacuum grease (0.0125 ml).
Vacuum grease
Lubr
ic
ate and i
n
st
al
l seal
s
11. Lubricate seal contact surface of
shaft with a slight film of vacuum
grease (0.0125 ml).
12. Slide both o-rings onto shaft till the
end.
13. Deposit 0.0375 ml vacuum grease
between the o-rings
14. Clean shaft from vacuum grease.
Vacuum grease
