VAT 613 Series User Manual

Series 613
FEHLER! VERWEISQUELL
E KONNTE NICHT GEFUN
DEN WERDEN.
984360EC Edition 12.08.2022 127/
149
8.2 Maintenance procedures
Two maintenance procedures are defined for this valve. This are:
• Replacement of shaft feedthrough seals and valve cleaning. Refer to chapter: «Replacement of
rotary feedthrough».
• Replacement of Option board. Refer to chapter: «Replacement of Option board»
Required frequency of cleaning and replacement of seals is depending on process
conditions.
VAT can give the following recommendations for preventive maintenance:
Replacement of unheated
1)
heated
≤
80 °C
1)
heated > 80 °C
1)
Rotary
feedthrough seals
2’000’000 cycles 6 months but
max. 2’000’000 cycles
3 months but
max. 2’000’000 cycles
1)
Those figures are reference values for clean conditions under various
temperatures. These values do not include any impact of the process. Therefore
preventive maintenance schedule has finally to be checked for the actual
process conditions.
Below pictures are sample pictures. Although there may be different variants of the
valve, the assembly procedure stays the same.
ISO-KF with heating ISO-F

VAT 613 Series Specifications

General

Brand	VAT
Model	613 Series
Category	Control Unit
Language	English