6 Commissioning/Start-up/Shutdown
42 of 80
Vitacast / Vitacast Bloc
Table 16:
Agent for cleaning step 5 "Flushing"
Cleaning agent
Concentration
Temperature
[%]
[°C]
Sodium hydroxide (soda lye)
1 to 3
+70 to +90
Phosphoric acid
0,5
+45
Lye, alkaline
5
+95
Nitric acid
1 to 2.5
+45
Citric acid
0.5 to 3
+70
6.2.4 Steaming in place (SIP)
WARNING
Pump casing takes on the same temperature as the sterilisation fluid
Risk of burns!
▷
Fit additional protective devices.
▷
Observe the general safety rules and regulations for steam applications.
CAUTION
Elastomers do not have sufficient resistance
Damage to the pump!
▷
Effect cleaning/sterilisation only if the elastomer components used in the pump
(e.g. O-rings, mechanical seals) are made of EPDM or other approved materials.
CAUTION
SIP with the pump running
Damage to the mechanical seals!
▷
Effect SIP (cleaning using superheated steam) only during standstill of the
pump set.
Conditions
Only effect SIP during standstill of the pump set.
Limits Table 17:
Elastomer
Saturated steam
Chemical
EPDM
121 °C
82 °C
FPM/FKM
149 °C
82 °C
6.2.5 Fluid handled
6.2.5.1 Flow rate
Table 18:
Flow rate
Temperature range (t)
Minimum flow rate
Maximum flow rate
0 to +70
℃
≈ 15 % of Q
opt.
10)
See hydraulic characteristic
curves.
> 70 °C
≈ 25 % of Q
opt.
10)
The calculation formula below can be used to check if an additional heat build-up
could lead to a dangerous temperature increase at the pump surface.
10)
Best efficiency point
