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Cleaning and sterilisation
Attention: Keep a minimum distance of 50cm (20 inches) from the pump while
performing high-pressure cleaning.
MasoSine Certa series pumps are designed to be cleaned in place. Please follow our CIP cleaning
instructions below.
Maintaining a clean process line is vital to maintaining a high level of hygiene and no contamination of
the end-product. Contamination costs time and money.
The heat or chemical reaction from clean-in-place (CIP) and steam-in-place (SIP) cleaning processes
damages a living cell’s essential structures, including the cytoplasmic membrane, rendering the cell no
longer viable.
The process automatically re-circulates cleaning detergent and rinse solutions.
The CIP procedure
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Before the CIP process begins, a preliminary clean should be performed at maximum speed with no
back pressure. This will remove most of the residual product.
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Suitable cleaning fluids for the CIP process may include concentrations below 1% of additives. They
may be:
o
Sodium hydroxide in distilled water
o
Nitric acid in distilled water
o
Phosphoric acid in distilled water
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CIP cleaning can be carried out between 60C (140F) and 100C (212F), depending on customer needs.
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Cleaning should be done at maximum pump speed to achieve a good cleaning result.
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It is recommended to have a differential pressure on the discharge side of the pump with at least 2.0
bar / 29.0 psi higher than the pressure on the suction side of the pump during the CIP process.
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A velocity of 1.5m/sec (5 ft/sec) is sufficient for most applications.
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A separate CIP supply pump and a bypass might be necessary if the MasoSine pump cannot supply
the required CIP solution velocity.
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A choke valve should be installed in the discharge pipeline immediately after the pump. Close the
choke valve slowly until the pressure difference is correct.
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The CIP time for the pump is in accordance with the time required for system cleaning: usually 20-40
minutes.
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