Accessories; Service And Warranty - Danfoss APP Series Installation, Operation And Maintenance Manual

Operation guide

13. Accessories

14. Service and warranty

© Danfoss | 2023.03
Installation, Operation and Maintenance APP 53-92 pumps
Accessories
Coupling APP 53 - APP 92 IEC 315
Coupling APP 53 - APP 92 IEC 280
Coupling kit APP 53 - APP 92 incl. bell housing IEC 315
Coupling kit APP 53 - APP 92 incl. bell housing IEC 280
Base frame incl. vibration dampeners
Warranty
Danfoss APP pumps are designed for long
operation, low maintenance and reduced
lifecycle costs.
Provided that the pump has been running
according to the Danfoss specifications, Danfoss
guarantees 8,000 hours service-free operation,
however, max. 18 months from date of
production.
If Danfoss recommendations concerning
system-design are not followed, it will strongly
influence the life of the APP pumps.
Other factors that affect pump performance and
lifetime include:
- Insufficient filtration
- Insufficient bleeding and venting
- Running the pump at speed outside
specifications.
- Supplying the pump with water at
temperature higher than recommended.
- Running the pump at inlet pressure outside
specifications.
- Running the pump at outlet pressure
outside the specifications.
- Wrong direction of rotation.
Maintenance
After 8,000 hours of operation it is strongly
recommended to inspect the pump and change
any worn parts, e.g. pistons and shaft
seal. This is done in order to prevent a potential
breakdown of the pump. If the parts are not
replaced, more frequent inspection is
recommended according to our guidelines.
Type
Diameter: motor Ø80 mm, pump Ø50
Diameter: motor Ø75 mm, pump Ø50
Ø80/Ø50. IEC 315 Ø660/310
Ø75/Ø50. IEC280 Ø550/265
IEC 315
Pump shutdown:
The APP pumps are made of Duplex/Super
Duplex materials with excellent corrosion
properties. It is, however, always recommended
to flush the pump with freshwater when the
system is shut down.
When stopping the pump for more than 1 day
flush the pump for 10 sec. Flushing through the
flushing valve of the pump without rotating the
pump is not enough for cleaning the inside of the
pump.
The pump can be flushed with biocide like the
membranes. The biocide must be compatible
with the materials used in our pump (materials
can be found in the parts list in the instruction
and operational manual).
Repair
In case of irregular function of the APP pump,
please contact Danfoss High Pressure Pumps.
180R9346 | AQ240486503020en-001702 | 41
Code num-
ber
180Z4066
180Z4081
180Z4083
180Z4082
180Z0661