®
Done
Hint!
The electrical cable must be long enough to allow the control top to be
removed via the switch bar.
10.3
Maintenance intervals
To ensure the highest operational reliability, all wearing parts should be replaced
at longer intervals.
The actual maintenance intervals can only be determined by the user since they
depend on the operating conditions, for instance:
•
daily period of use,
•
switching frequency,
•
type and temperature of the product,
•
type and temperature of the cleaning solution,
•
ambient conditions.
Maintenance intervals
Applications
Maintenance Intervals
(Guideline Values)
Elastomers
Maintenance Intervals
(Guideline Values)
TEFASEP gold (hard
seal)
Media at
temperatures of
60 °C to 130 °C
(140 °F to 266 °F)
approx. every 3 months
approx. every 12 months
Media at
temperatures of
< 60 °C
(< 140 °F)
approx. every 12 months
approx. every 12 months
10.4
Prior to disassembly
Prerequisite:
•
Make sure that during maintenance and repair work no process is in operation
in the area concerned.
Carry out the following steps:
1.
Drain all pipe system elements that lead to the valve and, if necessary, clean
or rinse them.
2.
Shut off the control air supply.
3.
Disconnect the power supply.
Maintenance
Maintenance intervals
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