Instructions for use and maintenance
This manual is owned by GEA Niro Soavi Any reproduction, even partial, is prohibited.
06C100-9C0
GEA Niro Soavi
100
6.5 Washing
Proper washing keeps the machine clean, sanitary or aseptic as required to prevent degradation and
contamination which may damage the product itself.
Parts in contact with the product are designed for ease of washing and cleaning (C.I.P.) with a
minimum number of stagnation points.
However, we recommend the following:
• Wash the machine IMMEDIATELY after production, not allowing the product to remain stationary
inside the machine, nor leaving it empty but unrinsed, as this will allow a film to deposit on its
internal walls;
• Depending on the product, the wash may require hot water or acid/base solutions, of the types
and compositions indicated in the table on the next page;
• The final rinse must be abundant, so as to completely neutralise any trace of chemical solution;
• If the solutions are obtained from concentrated or powder products, prepare them separately
and make sure they dissolve completely to prevent lumps or solid particles remaining in the
preparation.
Run the wash in a closed cycle (C.I.P.), with the machine running and homogenization pressure zero.
This prevents wasting electrical power and damaging the homogenization valve.
CAUTION:
For machines with variable or multiple flow rates, run the wash at the maximum allowed speed,
but no greater than 20% over the maximum operating speed (see Section 1 – TECHNICAL
SPECIFICATIONS).
CAUTION:
ONLY use solutions of the following products.
Even trace amounts of CHLORINE and IODINE ions, at high temperatures and pressures, can
be very damaging to the materials used to build the machine, since they can result in stress
corrosion which leads the entire structure to fail unexpectedly in a very short time.
PRODUCT
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
CAUTION:
Dispose of washing waste product and rinsing water properly according to local legislation.
Содержание Niro Soavi One7TS
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