Retrofit &
General overhaul
Maximum service life of your filter system in original
DANGO & DIENENTHAL quality
Many DANGO & DIENENTHAL Filterautomats with a service life of 10–15 years have now reached their planned service life.
A retrofit ensures that the system:
- operates reliably again
- achieves increased uptime without disruptions
- provides 5–8 additional years of operational reliability
- prevents unplanned downtime
- maintains stable filtration performance
- improves water quality
A retrofit is ideal if:
- Your filter shows technical irregularities
(e.g. high differential pressure, insufficient cleaning performance) - Maintenance intervals are becoming shorter
- Spare parts are becoming scarce
- Corrosion or wear is visible
- You are currently not planning to invest in a new system
WHEN WEAR BECOMES A DANGER.
What are the risks with old filterautomats?
PROBLEMS OFTEN OCCUR WITH INCREASING AGE, SUCH AS
- Corrosion on the housing and drum
- Damaged sealing surfaces and shaft seals
- Rash on filter drums
- Faults in the cleaning process
- Wear in the drive system
- Outdated differential pressure measurement
- Inhomogeneous coating due to deposits
These factors lead to
- Increased operating costs
- Quality problems
- Plant downtimes
- Damage to downstream units
A retrofit is the most cost-effective way
to eliminate these risks.
-
IN DETAIL
The retrofit package
- Complete sandblasting
- Lining the conical surface with 2-component polymer filler
- Re-machining the conical surface to original dimensions
- Complete interior surface coating (MKI)
- Cleaning and coating of the housing cover and inspection port cover
- Cleaning the drive shaft and reworking the threads
- Replacing the shaft protection sleeve
- Sandblasting and MKI coating of the bearing housing
- Cleaning the geared motor and changing the oil
- Replacing the drive motor
- Replacing the breather
- Complete renewal of the exterior
- Sandblasting and powder coating of the interior
- Replacement of the differential pressure gauge including console
- Replacement of the housing cover gasket
- Replacement of the inspection opening cover gasket
- Replacement of the drive shaft seal
- Replacement of various bolts, nuts, spring washers, etc.
- Complete assembly
- New exterior paint finish
- Function test testing
- Test run
- Factory acceptance
Procedure of a retrofit
Advantages of a retrofit
Why modernizing your filter system makes sense both financially and technically.
- ECONOMIC EXTENSION OF SERVICE LIFE
5–8 additional years of safe operation - HIGHER SYSTEM AVAILABILITY
Fewer disruptions and lower maintenance costs - COST CERTAINTY
Predictable, one-time investment
- MANUFACTURER QUALITY
Original parts and original know-how - ENVIRONMENTALLY FRIENDLY
Reuse instead of new production - SHORT LEAD TIME
Retrofits are usually available more quickly
