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.
HNO
3
= Nitric acid.
4.3 Recommended cleaning
S
Stteepp 11
A
Allw
waayyss handle lye and acid with great care.
C
Caauussttiicc ddaannggeerr!!
Always use rubber gloves!
Always use protective
goggles!
S
Stteepp 22
N
Neevveerr touch the pump or the pipelines when sterilising.
D
Daannggeerr ooff bbuurrnnss!!
3007-0015
S
Stteepp 33
E
Exxaam
mpplleess ooff cclleeaanniinngg aaggeennttss:: 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!
S
Stteepp 44
A
Allw
waayyss rinse well with clean water after using a cleaning agent.
N
NO
OTTE
E
The cleaning agents must be stored/disposed of in accordance
with current regulations/directives.
A
Allw
waayyss rriinnssee!!
Water
Cleaning agent
N
NO
OTTE
E
If pumps are sterilised using steam, standard 3A requeres the process system to be disigned to automatically shut down if the
product pressure in the system becomes less than of the atmosphere and it cannot be started until the system is re-sterilised.
17
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