SWRO system designers and installers have trusted Danfoss axial piston pump (APP) technology as a high-efficiency and highly flexible solution for many SWRO applications — land-based, offshore, and marine.
And for good reason. The APP pump range delivers efficiency rates as high as 92%. APP pumps are also easy to maintain and can go a long time between service appointments.
To date, the Danfoss APP pump range included sizes as low as 0.6-1.5 and as high as 53-86. Now, we’re ready to offer an additional size to make the range even more flexible and give our customers even more options.
The new Danfoss APP 92 is an extension of the APP 53-86 and is an ideal choice for medium-sized SWRO plants. It can easily run in parallel, resulting in higher flow.
The compact size and low weight of the APP pumps allow flexible configuration in almost any environment. They are also easy to maintain and can be serviced in the field, which makes the pump ideal for use in remote locations.
Features and benefits
Extensive application know-how
Highest efficiency rates in the industry
Compact and small – half size of competing pumps
Long time between service intervals
Easy and service-friendly design
Simple and reliable with high uptime
Short payback time

See our APP pumps in action
Pueblo Bonito Sunset Beach Golf & Spa Resort, a popular luxury resort, replaced an aging reciprocal pump with a new Danfoss APP pump, netting them simplified maintenance, high energy cost savings, and a low total cost of ownership as fresh water flows 24 hours a day, 7 days a week.
Case studies
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Bringing clean drinking water to rural Kenya with 100% renewable resourcesA solar-powered desalination plant in Kenya gives the community affordable, clean, and sustainable drinking water and irrigation water.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Jersey Water desalination plant boosts efficiency by 38%For a recent major upgrade to its La Rosière desalination plant, Jersey Water chose VLT® AQUA Drive from Danfoss. With dedicated water-industry functionality, this drive provides outstanding harmonic performance and high efficiency.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Danfoss APP pump has produced fresh water for a decade without any maintenanceLow maintenance costs alongside very low energy costs have resulted in extremely competitive total costs of ownership for the entire RO plant
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; } else if (isBigColumns) { } else { }Danfoss pumps reduce energy costs and CO₂ emissions in Hawaii38% reduction in the energy costs and an outstanding reduction of carbon emissions are benefits perceived by an Hawaiian golf course community using Danfoss APP pumps in their irrigation system.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }Danfoss APP pumps outperform plunger pumpsSK Watermakers has selected oil-free APP pumps for many of their marine applications due to proven reliability, easy maintenance and long service intervals.
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if (isSmallPicture) {
; } else if (isBigColumns) { } else { }TSG chooses only Danfoss pumps and drives – because operating margins matterBased in Gainesville, Florida, TSG is a water and wastewater treatment plant specialist with extensive experience in meeting the challenges of coastal and island environments. Operating in seven countries throughout the Caribbean, TSG builds turnkey plants, upgrades existing plants, and operates and maintains a wide variety of plants through its full- responsibility programs.