Watson-Marlow SPS - Manual (Page 30)

MasoSine SPS sinusoidal pumps User Manual 30
l A choke valve should be
installed in the discharge pipe-
line immediately after the
pump. Close the choke valve
slowly until the pressure differ-
ence is correct.
l The CIP time for the pump is
in accordance with the time
required for system cleaning:
usually 20-40 minutes.
discharge
side
suction
side
flow of
cleaning
fluid
choke
valve
X
bar/psi
Y
bar/psi
Y-X ≥
3 bar / 43.5 psi
Steam-in-place (SIP) for MasoSine products
Steam sterilisation kills micro-organisms through the application of moist heat
(saturated steam) under pressure without disassembly.
l Sterilising the pump with standard equipment is possible up to 120°C only at
standstill.
l The pressure should be high enough to ensure that the steam reaches all parts
of the static pump through the existing clearances.
Class II SIP and CIP
procedure
Maximum
temperature
Recommended
pressure differential
CIP 80-90°C / 176-194°F 3 bar
SIP 120°C / 248°F -
Key CIP and SIP safety information
l A distance of one metre around the pump should be kept clear during SIP to
minimise danger in case of leakage.
l CIP and SIP processes should be monitored continuously.
l If a leak occurs during CIP or SIP, the pumphead should not be touched until
system pressure has been relieved and the pumphead has been allowed to cool
down.
l Ensure that an acclimatisation period is observed after SIP before the pump
process is started. The temperature inside a standard pump should not exceed
85C (176F) during operation.