Watson-Marlow SP40 - Manual (Page 18)

DESCRIPTION
15
4.5 Application information & cleaning
Possible fields of application:
•
Food industry
•
Pharmaceutical industry
•
Paint industry
•
Others
For FOOD INDUSTRY applications (dairies, breweries,
etc.) the pumps preferably can be supplied with nitrile
(F-NBR) food grade hoses or Bioprene hoses, and
stainless steel sanitary connectors.
Cleaning of the F-NBR pump hose can be done by
using aqueous ALKALINE solutions, such as CAUSTIC
SODA or SODIUM CHLORIDE (max. concentration
20%).
In case of cleaning with saturated steam (SIP) use one
of the following combinations of temperature and
duration of cleaning.
•
120 °C. (248 °F) : maximum 30 minutes
•
100 °C. (212 °F) : maximum 60 minutes
•
80 °C. (176 °F) : unlimited
It is recommended to flush (cool) the pump hose with
cold water after high temperature cleaning, unless the
pump is going back to normal duty again.
For OTHER INDUSTRIES the pumps can be supplied
with other hose types like NR (natural rubber) or EPDM
rubber hoses and with standard flange + Insert
connections.
Flanges can be galvanized steel or stainless steel to
EN, ASA or JIS.
Inserts available in stainless steel, PVC, PP and PVDF.
Cleaning to be done by using liquids that do not attack
the used pump hose material. In case of doubt contact
your Bredel representative.
Carefully read the additional user
information supplied with the food hoses.