GEA ONE 11TS, Инструкция по эксплуатации и техническому обслуживанию

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ONE 7TS – Operation and use
6.5 Washing
Accurate washing ensures the machine is maintened in clean, sanitary or aseptic conditions to prevent dete-
rioration or undesired harmful contamination of the product treated.
In designing the parts that come into contact with the product, great importance was given to ease of clean-
ing and washing (C.I.P.) avoiding as much as possible the creation of stagnation points.
In any case, we suggest you observe the following precautions:
•
washing must be performed IMMEDIATELY after production, without keeping the product in the machine
after it has been switched off, and without leaving the machine empty but unrinsed to prevent the forma-
tion of a film on internal surfaces;
•
depending on the characteristics of the product, washing can be performed with hot water or with acid or
basic solutions; types and compositions are specified in the Table on the following pages;
•
the final rinse must be thorough in order to remove any trace of chemical solutions;
•
in case of solutions obtained from concentrated or powder products, they need to be prepared separa-
tely nel case di soluzioni ottenute da prodotti concentrati o in polvere, occorre prepararle separatamente
curandone the dissoluzione in modo da evitare the presenza di grumi o particelle solide non disciolte.
Washing operations must be performed with closed cycle (C.I.P.), with the machine on and homogenization
pressure equal to zero.
This prevents unnecessary energy waste and avoids damage to the homogenization valve.
ATTENTION:
For machines with variable or multiple capacity, perform washing at the maximum speed allowed,
which should never be more than 20% of the maximum operating capacity (see Section 1 -
TECHNICAL SPECIFICATIONS).
ATTENTION:
Use solutions containing ONLY the products specified below.
Even the smallest trace of CHLORINE and IODINE, together with high temperature and pressure, is
very damaging for the materials with which the machine is constructed as it can cause “corrosive
stress” that would very shortly lead to a collapse of the structure.
P R O D U C T max concentr.(%) max temp. (°C)
Caustic soda (NaOH) 3 90
Nitric acid (HNO
3
) 1 70
Phosphoric acid (H
3
PO
4
) 3 85
Boiling water - 90
Superheated water /steam - 150
pag 6.15
Il presente manuale è di proprietà GEA Niro Soavi S.p.A. ogni riproduzione, anche parziale, è vietata.