6
2
- Never touch the valve or the pipelines
when processing hot liquids or when
sterilizing.
- Never dismantle the valve with valve
and pipelines under pressure.
1
- Always read the technical data
thoroughly (See page 14).
- Always release compressed air after
use.
- Always disconnect the electrical con-
nection before dismantling.
CAUTION!
The I/P-converter of the actuator is adjusted be-
fore delivery and must never be opened.
NOTE!
We cannot be held responsible for incorrect
installation.
2. Fault finding
NOTE!
- Study the adjustment instructions carefully be-
fore adjusting the valve. - See page 7-8!
- Study the maintenance instructions carefully
before replacing worn parts. - See page 11!
Operation
The valve is adjusted and tested before delivery.
The adjustment instructions on page 7-8 are only to
be used if further adjustment is required!
Study the instructions carefully and pay special
attention to the warnings!.
Pay attention to possible faults.
Problem Cause/result Repair
- Leaking lip seal at the piston - Worn lip seal - Replace the lip seal
- Leaking seal at the valve - Incorrect rubber grade - Replace with a seal of a dif-
body ferent rubber grade
Deviation in the flow regulation Worn valve plug Replace the plug and adjust
(See page 7)
Deviation in the flow regulation Mechanical parts have come Tighten and adjust
loose (vibrations) (See page 7)
Actuator does not regulate Actuator errors Return the actuator to the supplier
1. General operation
Atmospheric
pressure re-
quired!
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