4 Operation
The pump is designed for cleaning in place (CIP). CIP = Cleaning In Place. Study the instructions carefully and pay special
attention to the warnings! NaOH = Caustic Soda. HNO3 = Nitric acid.
4.3
Recommended cleaning
Step 1
Always handle lye and acid with great care.
Caustic danger!
Always use rubber gloves!
Always use protective
goggles!
Step 2
Never touch the pump or the pipelines when pumping hot liquids
or when sterilising.
3100-0018
Danger of burns!
Step 3
Examples of cleaning agents: Use clean water, free from chlorides.
1. 1% by weight NaOH at 70°C (158°F).
1 kg (2.2 lb)
+
100 l (26.4 gal)
= Cleaning agent.
NaOH
water
2.2 l (0.6 gal)
+
100 l (26.4 gal)
= Cleaning agent.
33% NaOH
water
2. 0.5% by weight HNO
3
at 70°C (158°F).
0.7 l (0.2 gal)
+
100 l (26.4 gal)
= Cleaning agent.
53% HNO
3
water
1. Avoid excessive concentration
of the cleaning agent
⇒
Dose gradually!
2. Adjust the cleaning flow to the
process.
Sterilisation of milk/viscous
liquids
⇒
Increase the cleaning flow!
Step 4
!
Always rinse well with clean water after using a cleaning agent.
NOTE
The cleaning agents must be stored/disposed of in accordance
with current regulations/directives.
Always rinse!
Clean water
Cleaning agent
14
