masosine SPS 100, User Manual

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17 Cleaning and sterilisation
Attention: Keep a minimum distance of 50cm (20 inches) from the pump while
performing high-pressure cleaning.
MasoSine SPS pumps may be cleaned in place. Please follow our CIP cleaning instructions—see below.
Maintaining a clean process line is vital to maintain a high level of hygiene and no contamination of an
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.
17.1 The benefits of clean-in-place (CIP) and steam-in-place (SIP)
•
Cleaning is faster
•
Cleaning is less labour-intensive
•
Cleaning is repeatable
•
There is a reduced chance of operators being exposed to hazardous chemicals
17.2 Clean-in-place (CIP) for MasoSine products
Clean-in-place (CIP) is a method of cleaning the interior surfaces of pipes, vessels, process equipment
and associated fittings without disassembling.
17.3 The CIP procedure
•
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.
•
Suitable cleaning fluids for the CIP process may include concentrations below 1% of additives.
They may be:
•
Sodium hydroxide in distilled water
•
Nitric acid in distilled water
•
Phosphoric acid in distilled water
•
CIP cleaning can be carried out between 80C and 90C as standard.
•
Cleaning should be done at maximum pump speed to achieve a good cleaning result.
•
It is very important that the differential pressure on the discharge side of the pump is at least
3.0 bar / 43.5 psi higher than the pressure on the suction side of the pump during the CIP process.
•
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.
•
The CIP time for the pump is in accordance with the time required for system cleaning: usually
20 to 40 minutes.
discharge
side
suction
side
flow of
cleaning
fluid
choke
valve
X
bar/psi
Y
bar/psi
Y-X ≥
3 bar / 43.5 psi
28 m-SPS-en-08