Watson-Marlow NBR - Manual (Page 13)

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Detail Z (example)
The position of the hose clamp (D) relative to the end of
the insert (F) is crucial to make sure that the hose
deformation (H) caused by the tightened hose clamp
(D) results in a smooth transition between the pump
hose (A) and the insert (F).
2.3 Hose cleaning during hose use
A common way to clean the inside of the hose is
operating the pump whilst pumping clean water. If there
is no special bypass line in the process piping for
cleaning cycles, the pump must be disconnected from
the process piping first. Make sure the water
temperature remains below 80°C (176°F).
In case of cleaning with steam (SIP) limit the
temperature to 120°C (248°F) (maximum of 2 bara/
29 psia steam pressure), and do not clean longer than
30 minutes.
F
A H
CAUTION
Cleaning agents used in cleaning cycles
may contain chemicals that are not
chemically compatible with the inner layer
of the hose. Therefore you must only use
cleaning agents which are allowed to be
used in your specific production process,
and are not chemically affecting the hose
material. For chemical compatibility
information contact your Bredel
representative.