VAT 11136 E01/08 Series, Инструкции по установке, эксплуатации и обслуживанию

Страница: 13 / 24

Series 111 MAINTENANCE
984134EA Edition 03.02.2021 13/24
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 valve.
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.
After 200 000 cycles, VAT recommends replacing the mechanism unit;
see chapter «7.3 Replacement of valve gate / mechanism unit».
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.
7.2 Required tools
•
Torque wrench DN63-160 20 Nm and DN200 40Nm
•
Cleanroom wiper soaked with alcohol (2% methyl ethyl ketone)
•
O-Ring removal tool; see «Table 12-1» on page 24.
Figure 7-1