2. OPERATION
IOM manual - Sanitary series
16
➢
If the ambient air is humid, icing can occur outside of the muffler. In such case it is
recommended to use a longe
r exhaust of the compressed air (ca. 500 mm / 19,7’’).
➢
If icing / freezing is still a problem with the standard muffler, we recommend using our
heavy duty metal muffler. Contact us for more information.
2.3.
Pump stopping
The pump can be stopped in two ways:
1)
By closing of the discharge valve. The pressure from the system will stop the pump
automatically. The pump restarts easily when the valve is opened again.
NOTE!
When using this method keep in mind that air must be supplied to the pump.
This is essential to keep the diaphragms in balance what protects them from premature
failure.
2)
By cutting off the air supply.
NOTE!
When using this method make sure that the discharge valve is opened to relief
the pumps pressure.
2.4.
Cleaning of the pump
2.4.1.
CIP
–
Cleaning In Place
The importance of easy cleaning is essential in hygienic applications. Tapflo aseptic pumps
are designed for CIP (Cleaning In Place) and SIP (Sterilization In Place). This allows the pump
to be internally cleaned without disassembly. The pump can be cleaned by flushing through
with a CIP fluid (usually a mild solution of sodium hydroxide and a sanitizing additive) or by
injection of hot steam (SIP). Despite the general temperature restriction (see 6.4. “Technical
data”), a brief operation (max. 30 minutes) at 130°C (266°F) for sterilization process is
permitted. Make sure that the CIP fluid is compatible with the materials in the pump/piping.
During CIP and SIP pump must run slowly (1-2 strokes per second) to obtain pressure
balance on both sides of the diaphragm. Lack of pressure balance will have influence on
the pump’s lifetime. Direction
of the forced flow should be, the same as during normal
operation, from the inlet to the outlet. Contact us for more information.
