
MAINTENANCE
Series 140
22/43
Edition 14.07.2020
875067EA
7
Maintenance
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Heavy weight
Physical overstraining.
Use a crane to lift the product.
WARNING
Hazardous components
Human body parts may get jammed and severely injured.
Before starting maintenance:
– disconnect compressed air supply
– disconnect electrical power supply
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Keep human body parts away from movable parts.
7.1
Maintenance intervals
Under clean operating conditions the valve does not require any maintenance during
200 000 cycles (DN400: after 200 000 cycles in horizontal mounting position, after 50 000
cycles in vertical mounting position). After 200 000 cycles, VAT recommends to replace the
valve gate; see chapter «7.3 Removing valve gate».
For more information or a general overhaul please contact one of our service centers.
You will find the addresses on our website www.vatvalve.com.