Series 111
12/24
Edition 03.02.2021
984134EA
6
Trouble shooting
Failure
Check
Action
See
Leak at gate
Gate seal all right?
Replace valve
gate
«7.3 Replacement of valve gate /
mechanism unit»
Gate damaged or
contaminated?
Replace valve
gate
«7.3 Replacement of valve gate /
mechanism unit»
Leak at body
Bonnet seal and
sealing surface all
right?
Clean sealing
surface
– if necessary,
replace bonnet
seal
«7.3 Replacement of valve gate /
mechanism unit»,
steps 1 to 4
Bellows all right?
Contact VAT
Table 6-1
If you need any further information, please contact one of our service centers. You will find the
addresses on our website www.vatvalve.com.
