The Danfoss APP 10.2 (code 180B3010) is an axial piston high-pressure pump built for seawater and brackish-water reverse osmosis. It is oil-free and water-lubricated — the pumped water itself lubricates the bearings, so there is no oil circuit to maintain and no risk of oil contaminating the permeate. All wetted parts are Duplex and Super Duplex stainless steel for seawater corrosion resistance.
Documentation & Drawings
Technical Specifications
| Identification | |
| Code number | 180B3010 |
| Pump size | APP 10.2 |
| Series | APP (W) 5.1 – 10.2 |
| Type | Axial piston, oil-free, water-lubricated |
| ATEX version | 180B3110 (Category 2 Zone 1 / Category 3 Zone 2) |
| APP W version | 180B3080 |
| Displacement & Flow | |
| Geometric displacement | 100.5 cm³/rev (6.13 in³/rev) |
| Flow at 1000 rpm, max. pressure | 5.83 m³/h |
| Flow at 1500 rpm, max. pressure | 8.75 m³/h |
| Flow at 1200 rpm, max. pressure | 30.82 gpm |
| Flow at 1800 rpm, max. pressure | 46.23 gpm |
| Pressure | |
| Max. outlet pressure, continuous | 83 barg (1200 psig) |
| Min. outlet pressure | 20 barg (290 psig) |
| Inlet pressure, continuous | 0.5 – 5 barg (7.3 – 72.5 psig) |
| Max. inlet pressure, peak | 5 barg (72.5 psig) |
| Speed | |
| Min. speed, continuous | 700 rpm |
| Max. speed, continuous | 1800 rpm |
| Boost requirement above 1500 rpm | Inlet must be boosted to 2 – 5 barg (29 – 72.5 psig) |
| Operating Conditions | |
| Media temperature | 2 – 50°C (35.6 – 122°F) |
| Ambient temperature | 0 – 50°C (32 – 122°F) |
| Sound pressure level at 1 m | 78 dB(A) |
| Mechanical | |
| Weight (dry) | 30 kg (66 lb) |
| Torque at max. outlet pressure | 141 Nm (104 lbf-ft) |
| Footprint with IEC motor | 0.43 m² (4.63 ft²) |
| Body material | Duplex / Super Duplex stainless steel |
| Typical Motor | |
| Motor size at max. speed, max. pressure | 30 kW |
| Motor size at 1200 rpm, max. pressure | 25 HP |
| Warranty & Origin | |
| Warranty | 8,000 hours service-free operation, max. 18 months from date of production, when run to Danfoss specifications |
| Manufacturer | Danfoss High Pressure Pumps |
| Country of origin | Denmark |
| Data sheet reference | Danfoss AI274333290009en-000702, §4.3 |
Motor-unit dimensions (§11.2)
Overall dimensions of the APP 10.2 mounted as a complete motor unit, for the two recommended IEC motors:
| IEC motor | A | B | C | D | E | F |
|---|---|---|---|---|---|---|
| 22 kW, IEC 180 L-4 | 350 mm (13.78″) | 473 mm (18.62″) | 180 mm (7.09″) | 279 mm (10.98″) | 279 mm (10.98″) | 616 mm (24.25″) |
| 30 kW, IEC 200 L-4 | 400 mm (15.75″) | 513 mm (20.20″) | 200 mm (7.87″) | 318 mm (12.52″) | 305 mm (12.01″) | 659 mm (25.94″) |
Letters refer to the dimensional drawing in the gallery above. 180B3010 is the bare pump — motor, coupling and bell housing are ordered separately.
Videos
How an axial piston pump works — APP pump working animation
Why are axial piston pumps ideal for SWRO?
High pressure for SWRO: how to get 90% pump efficiency
Videos courtesy of Danfoss High Pressure Pumps.
Case Studies
Read the case study →
Read the case study →
Read the case study →
Read the case study →
Read the case study →
Why an Axial Piston Pump for SWRO
In a positive-displacement axial piston pump, flow is set by displacement and shaft speed rather than by system pressure, so output stays stable as membranes foul and feed pressure rises. That matters in SWRO, where a centrifugal pump's output falls away as head increases.
- Oil-free — lubricated by the pumped water, so no oil changes and no contamination path to the permeate.
- No high-pressure mechanical seal — one of the most common wear points on other pump types is simply absent.
- Duplex / Super Duplex throughout the wetted path for seawater chloride resistance.
- Field serviceable — Danfoss supplies purpose-designed tool kits and service parts.
Danfoss reports overall efficiency above 90% measured across more than a dozen operating SWRO plants; see their video above for the measurement basis. Actual efficiency depends on speed, pressure and system design.
Frequently Asked Questions
What flow will the APP 10.2 give me?
Does it come with a motor?
Do I need a boost pump on the inlet?
What filtration does it need?
What do I do when the system shuts down?
What is the warranty?
Can I run several in parallel?
Specifications reproduced from Danfoss data sheet AI274333290009en-000702 (2024.06), §4.3 and §11.2. APP® is a registered trademark of Danfoss A/S. Danfoss reserves the right to alter specifications without notice; confirm critical values against the current data sheet before purchase.
