Maintenance / Cleaning
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DOUBLE-SEAT VALVE INOVA (Type 580)
BA 058000.06 EN 15.11.2018
10.3 Inspection Intervals
Visual inspections must be carried out continuously:
• Check the compressed air supply (compressed air hose, hose routing, hose coupling,
filter...).
• Check the electrical supply (wiring, pipe surface, cable couplings...).
• Check the leakage outlet and the housing seal (liquid outlet...).
• Test the valve functions.
10.4 Cleaning Parameters
The double-seat valve and the sealing material in the product-affected area is designed for a
standard CIP operation.
The following are to be considered as standard conditions:
• CIP media on the basis of commercially available caustic-acid components with given
chemical resistance to EPDM sealing material. Consultation should be carried out
with the valve manufacturer for different kinds of media.
• Cleaning additives in the concentration range of 2-4%
• Temperatures for cleaning media in the range of 30-70°C or hot water to 90°C
• Piping pressure 2-5 bar
• Flow velocity 2-5 m/s
• Differential pressure in flushing chamber cleaning < 2 bar
• Cleaning cycles according to the medium up to 15 minutes. Depending on the chosen
cleaning function, the valve or the valve disk should be frequently opened and
closed.
10.5 Seal change
Instructions for disassembly of the valve are to be found in Chapter 8.
Please note the following points:
• Use the corresponding tools (e.g. dig hook) to remove the various seals. The dig
hooks are not necessary for the product chamber seals.
• The sealing grooves should be cleaned thoroughly before installing the new seals.
• The new seals should be installed lightly lubricated; fats permitted for the food
industry should be used.
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