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6
Maintenance
6.1
Maintenance intervals
Under clean operating conditions the valve does not require any maintenance during 10 000
cycles; see product data sheet. After these cycles, VAT recommends replacing the
mechanism unit; see chapter «6.3 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.
6.2
Required tools
• Torque wrench
• Cleanroom wiper soaked with alcohol (2% methyl ethyl ketone)
16/26
MAINTENANCE
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
Heavy weight
Physical overstraining.
Use a crane to lift the valve insert.
Hazardous components
Human body parts may get jammed and severely injured.
Before starting maintenance:
– disconnect compressed air supply
– disconnect electrical power supply
Movable parts
Human body parts may get jammed and severely injured.
Keep human body parts away from movable parts.
Edition 2018-08-22
WARNING
WARNING
WARNING
WARNING
Series 191 / 192
600246EA
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