High-pressure pumps for reverse osmosis applications

Energy efficient axial piston pumps for desalination

With Danfoss high-pressure axial piston pumps tailored to Sea Water Reverse osmosis (SWRO) applications you will get one of the most reliable and sustainable pumps for desalination. The APP pumps can be used in almost any SWRO application – land-based, offshore or marine. Mounted in containers or trains, the APP pumps can contain several pumps in parallel to secure uninterrupted and sufficient supply at any time.

APP 30 with motor: View the 3D model
APP 30 without motor: View the 3D model
App 78 pump: View the 3D model

Danfoss has pioneered axial piston pump technology in challenging hydraulic applications for several years. With more than 15 patents, a strong precision engineering heritage and world-class production know-how in Duplex, Super Duplex and carbon-reinforced PEEK, Danfoss designs and produces the most advanced high-pressure pumps available for reverse osmosis. The APP pump is oil-free, using only water for lubrication. Most pumps can be delivered with ATEX and API 674 approvals.

The Danfoss APP pumps are available in various sizes from 0.6 m3/h to 92 m3/h for use in small and medium-sized SWRO facilities.

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 pay-back time

Resort, onshore reverse osmosis - Danfoss

Make fresh water in a sustainable and energy-efficient way

Reduce energy costs by applying the Danfoss APP pump

Download brochure

Compact and simple design

Due to its high energy-efficiency and reliability, SWRO has turned into one of the most sustainable and cost effective desalination solutions for land-based, offshore and marine applications. The technology is reliable and safe with high-pressure pumps forcing seawater through desalination membranes to create fresh water. Danfoss supplies expertise and unique technologies that can offer your business high efficiency, low maintenance and flexible configuration.

Energy

With efficiency rates up to 92%, the APP pump technology offers the highest efficiency in the industry.

Maintenance

The simple construction of the pump offers reliable operation with long service intervals and easy maintenance.

Footprint

The small and compact size of the pump allow flexible configuration in almost any environment.

Superior energy recovery in SWRO

Danfoss iSave is a patented, high-efficiency Energy Recovery Device (ERD) that guarantees constant membrane feed in SWRO applications of any size – on land, at sea or on the move.

Learn more

Product range

if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

APP 0.6-1.5 high pressure pump

Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. outlet pressure, inlet: 0.5-5 barg/7.3-72.5 psig
Flow range: 0.2-1.3 m3/h - 0.9-5.7 gpm
Speed: 700 to 3,450 rpm
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

APP 1.5-3.5 high pressure pump

Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. outlet pressure, inlet: 0.5-5 barg/7.3-72.5 psig
Flow range: 0.4-3.5 m3/h - 1.8-15.4 gpm
Speed: 700 to 3,450 rpm
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

APP 5.1-10.2 high pressure pump

Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. outlet pressure, inlet: 0.5-5 barg/7.3-72.5 psig
Flow range: 1.9-10.7 m3/h - 8.4-47.1 gpm
Speed: 700 to 1,800 rpm
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

APP 11-13 high pressure pump

Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. outlet pressure, inlet: 0.5-5 barg/7.3-72.5 psig
Flow range: 9.2-13.8 m3/h - 40.5-60.8 gpm
Speed: 700 to 1,500 rpm
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

APP 16-22 high pressure pump

Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. outlet pressure, inlet: 2-5 barg/29-72.5 psig
Flow range: 13,3-21,9 m3/h - 58.6-96.4 gpm
Speed: 700 to 1,500 rpm

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type

Related products

if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

VLT® AQUA Drive FC 202

VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

Energy recovery devices for reverse osmosis applications

The 3-in-1 Energy Recovery Device (ERD) optimized for sea water reverse osmosis applications.
if (isSmallPicture) { ; } else if (isBigColumns) { } else { }

DST P40I titanium pressure transmitter for use in corrosive environments and with aggressive media

For use in corrosive environments and with aggressive media, Danfoss offers the robust DST P40I pressure transmitter made of Titanium and with ceramic pressure sensing element. DST P40I is optimized for use in applications such as desalination systems, seawater cooling, and chemical processing.