General Information; Product Diagram - Danfoss APP series User Manual

Data sheet
Data sheet for
APP 16-22 pumps (521B1183)
Table of Contents
1.

General information

4
APP 16-22
1. General information
2. Benefits
3. Technical data
4. Variants
5. Flow at different rpm
6. Flushing valve
7. Power requirements
8. Temperature and corrosion
8.1 Operation
8.2 Storage
9. Noise level
10. Filtration
11. Dimensions
12. Dimensions, complete unit
13. Installation
13.1 Mounting
13.2 Open-ended system with direct water supply
13.3 RO system with APP pump
14. Service
14.1 Warranty
14.2 Maintenance
14.3 Repair
APP 16-22 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 salt
water pumping.
The pumps are based on the positive displace-
ment principle (axial piston design) which
enables a very light and compact design, and
1: Shaft Sealing
2: Bolts for bell housing
3: Flushing valve
4: Port plate
5: Bleeding plug
6: Valve/thrust plate
7: Piston/shoe
8: Cylinder barrel
9: Retainer ring
10: Swash plate with bearing
11: Port flange with bearing
12: Drain plug
13: Housing
14: Springs
180R9265 / IOM APP 16-22 Appendices - v02 / 01.2013
they are designed so that the lubrication of the
moving parts in the pumps is provided by the
fluid itself. No oil lubrication is thus required.
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.