4Operation
The valve is designed for cleaning in place (CIP).
Study the instructions carefully and pay special attention to the warnings!
NaOH = Caustic soda.
HNO
3
=Nitricacid.
Step 3
Clean the plug and the seats correctly.
Pay special attention to the warnings
Lift and lower valve plug momentarily!
2405-0014
Step 4
Examples of cleaning agents:
Use clean water, free from chlorides.
1. 1% by weight NaOH at 70
o
C2.0.5%byweightHNO
3
at 70
o
C
1kg
NaOH
+
100 l
water
=
Cleaning agent.
0.7 l
53% HNO
3
+
100 l
water
=
Cleaning agent.
2.2 l
33% NaOH
+
100 l
water
=
Cleaning agent.
Step 5
1. Avoid excessive concentration of the cleaning agent.
2. Adjust the cleaning flow to the process.
3. Always rinse well with clean water after cleaning.
NOTE
The cleaning agents must be stored/disposed of in accordance
with current regulations/directives.
Always rinse!
Clean water
Cleaning agents
17
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