Danfoss APP Series User Manual page 22

Data sheet
Data sheet for
APP 1.5-3.5 pumps
(521B0850)
Table of Contents
1. General information
4
2
APP pumps - APP 1.5-3.5
1. General information
2. Benefits
3. Technical data
4. Flushing valve
5. Flow at different rpm
6. Power requirements
7. Temperature and corrosion
7.1 Operation
7.2 Storage
8. Noise level
9. Filtration
10. Dimensions
10.1 Pump
10.2 Complete unit
11. Installation
11.1 Mounting
11.2 Open-ended system with direct water supply
11.3 RO system with APP pump
12. Service
12.1 Warranty
12.2 Maintenance
1. General information
12.3 Repair
APP 1.5, APP 1.8, APP 2.2, APP 2.5, APP 3.0 and
APP 3.5 pumps are designed to supply low
viscosity and corrosive fluids under high
pressure, e.g. in seawater reverse osmosis
filtration applications and for high-pressure
saltwater pumping.
The pumps are based on the axial piston
APP1.5, APP1.8, APP2.2, APP2.5, APP3.0 and APP3.5 pumps are designed to supply low viscosity and corrosive fl uids under high
pressure, eg in seawater reverse osmosis fi ltration applications and for high-pressure salt water pumping.
principle enabling a very light and compact
design. The design ensures that lubrication of The pumps are based on the axial piston principle enabling a very light and compact design. The design ensures that lubrication of
the moving parts in the pumps is provided by the fl uid itself. No oil lubrication is thus required.
the moving parts in the pumps is provided by
All parts included in the pumps are designed to provide long service life, ie long service life with a constantly high effi ciency and
the fluid itself. No oil lubrication is thus required.
minimum of service required.
The pumps are fi xed displacement pumps in which the fl ow is proportional to the number of revolutions of the input shaft and the
pump displacement, regardless of any counter-pressure.
The pumps are supplied with an integrated fl ushing valve that allows the salt water to fl ow from inlet to the outlet, when the pump
is not running.
1: Shaft sealing
2: Mounting flange
3: Retaining ring
4: Piston/shoe
1: Shaft sealing
5: Valve plate
2: Mounting fl ange
3: Retaining ring
6: Swash plate
4: Piston/shoe
7: Cylinder barrel
5: Valve plate
6: Swash plate
8: Spring
7: Cylinder barrel
9: Port plate
8: Spring
9: Port plate
10: Connecting flange
10: Connecting fl ange
11: Housing with bearing
11: Housing with bearing
12: Flushing valve
12: Flushing valve
2. Benefi ts
• One of the smallest and lightest pumps on the market.
180R9267 / IOM APP 1.5-3.5 Appendices - v04 / 11.2013
521B0850 / DKCFN.PD.013.FA6.02 / 09.2012
• Can be powered by a combustion engine.
• Long service life / No preventive maintenance required in the warranty period.
• Generates insignifi cant pulsations in the high-pressure line.
• No oil lubricant required.
• Integrated fl ushing valve
• All parts of the pump are made of high corrosion resistant materials eg Duplex (EN1.4462/UNS S31803-S32205) and
Super-duplex (EN1.4410/UNS S32750) stainless steel and carbon reinforced PEEK
All parts included in the pumps are designed to
provide long service life, i.e. long service life with
a constantly high efficiency and minimum of
service required.
The pumps are fixed displacement pumps in
which the flow is proportional to the number of
revolutions of the input shaft and the pump
displacement, regardless of any counter- pressure.
The pumps are supplied with an integrated
flushing valve that allows the salt water to flow
from inlet to the outlet, when the pump is not
running.
2 12
1
9
10
DATA SHEET
Water Pumps
APP1.5 - 3.5
6
7
11 4
5
8
3
11