Operation/Use
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DOUBLE-SEAT VALVE INOVA (Type 580)
BA 058000.06 EN 15.11.2018
6.2 CIP cleaning
Double-seat valves are optimally designed for automated CIP processes.
See also Chapter 10.4, Page 34 (cleaning parameters).
• If the double-seat valve does not have any single-seat lifting, it should then be
cleaned at the same time as the pipe cleaning. At the same time, the valve
should be moved in short intervals into the OPEN and CLOSED position.
• If the double-seat valve is equipped with single-seat lifting, then the
respective valve disk can be lifted if the accompanying pipe is located in the
CIP operation.
• If the double-seat valve has leakage chamber cleaning, this can be activated
during the valve’s CLOSED position when there is a pipe in the CIP operation.
• If cleaning of the balancer is planned, this can be activated during the valve’s
CLOSED position when there is a pipe in the CIP operation.
6.3 Leakage detection
It is essential that the form seals in the separate valve disks are protected from mechanical
damage during operation and maintenance.
A leakage in the area of the product and flushing chamber can be recognized as described
below:
• In the case of defective form seals of a valve disk, liquid flows out from the
respective pipe at the leakage outlet in a closed valve position.
• In the case of defective sealing of the leakage chamber, liquid runs out at the
leakage outlet with an opened valve.
• In the case of defective inner sealing of the flushing chambers (lip seals), liquid
flows into the upper or lower flushing chambers. As this is normally filled with
flushing water from the last CIP cleaning, liquid flows away immediately at the
respective CIP outflow.
• In the case of defective exterior sealing of the flushing chambers (quad ring),
liquid flows out at the guide bush’s upper or lower venting bore hole.
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