VAT 65048 Series

Installation, Operating & Maintenance Instructions
Series 650, DN 100 – 250 (I.D. 4" - 10")
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email reception@vat.ch www.vatvalve.com
258550EE
2007-05-11
43/51
D e s c r i p t i o n Required tool
gate seal
10. Remove gate and body o-ring from
sealing ring carefully with a soft tool.
11. Remove grease residues at sealing
ring with alcohol.
Clean sealing ring and pendulum
plate with alcohol or in an ultrasonic
bath.
12. Clean out valve body with alcohol.
Use an appropriate non metal tool
with a cloth to enter valve body.
Do not enter valve body with hands!
Then blow out valve body with clean
air.
Do not directly expose seals
(actuator and retaining pin
feedthroughs) to air stream!
13. Clean or replace gate seal if
necessary.
Install gate o-ring to sealing ring
without grease.
body seal
Valve size Quantity of grease [ml]
DN100 / 4“
(650
40 - . . . . - . . . . )
0.1
DN160 / 6“
(650
44 - . . . . - . . . . )
0.15
DN200 / 8“
(650
46 - . . . . - . . . . )
0.2
14. Clean or replace body seal if
necessary.
Lubricate body o-ring with the
quantity of vacuum grease listed in
the table to the right.
DN250 / 10“
(650
48 - . . . . - . . . . )
0.2
15. Install body o-ring into sealing ring.
Valve size Quantity of grease [ml]
DN100 / 4“
(650
40 - . . . . - . . . . )
0.2
DN160 / 6“
(650
44 - . . . . - . . . . )
0.25
DN200 / 8“
(650
46 - . . . . - . . . . )
0.3
16. Deposit vacuum grease on the
bottom side of the body seal
according to drawing below. Pay
attention that the quantity of vacuum
grease listed in the table to the right
is distributed constantly over the
whole circumference.
DN250 / 10“
(650
48 - . . . . - . . . . )
0.4
Apply grease deposit
on this side