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Danfoss is dedicated to engineering energy efficient solutions. Our blog explores issues related to energy and cost efficiency in seawater reverse osmosis.
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How it works
Reduce energy costs by applying the Danfoss APP pump.
The new APP pumps with ceramics enables SWRO operators in even more places to achieve unrivaled energy efficiency and simpler maintenance. Pre-filtration requirements are now even lower.
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.
With efficiency rates up to 92%, the APP pump technology offers the highest efficiency in the industry.
The simple construction of the pump offers reliable operation with long service intervals and easy maintenance.
The small and compact size of the pump allow flexible configuration in almost any environment.
The importance of energy efficiency in the desalination process
Juan Manuel Ortega, renowned desalination expert, tells about the importance of using highly efficient energy recovery devices and high-pressure pumps.
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.
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Product range
APP D 30-38 high-pressure pump with ceramic
Pressure range: Max outlet pressure: 83 barg/1,200 psig
Min. inlet pressure: 2-5 barg/29-72.5 psig
Flow range: 18-38 m3/h – 79.7-167.3 gpm
Speed: 700-1,500 rpm
Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. inlet pressure, inlet: 2-5 barg/29-72.5 psig
Flow range: 9.2-13.8 m3/h - 40.5-60.8 gpm
Speed: 700 to 1,500 rpm
Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. inlet pressure, inlet: 2-5 barg/72.5 psig
Flow range: 12.3-46 m3/h – 54.2-202 gpm
Speed: 700 to 1,780 rpm
Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. inlet pressure, inlet: 2-5 barg/72.5 psig
Flow range: 24-92 m3/h – 106-405 gpm
Speed: 700 to 1,780 rpm
Pressure range: Max outlet pressure: 80 barg/1,160 psig
Min. inlet 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
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Related products
VLT® AQUA Drive FC 202 controls all types of pumps and comes equipped with a cascade controller.
With a 3-in-1 design that integrates highly effective isobaric pressure exchangers with positive displacement booster pumps and electrical motors, active iSave® ERDs deliver big energy savings in small spaces. Covering train sizes from 200-3,000 m3/day
The APP W HC pump is suitable for ZLD and MLD reverse osmosis applications used in industrial wastewater treatment.
At Danfoss, we have always been dedicated to maintaining the longevity and performance of your equipment through our out-of-warranty repair services. Our new Fixed-Price Repair Program builds on this commitment by offering not only repairs but also upgrades to older products with the latest parts. This ensures optimal performance and reliability, allowing you to extend the life of your equipment.
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.
Related solutions
As global demand for lithium, magnesium, and food-grade salt surges, brine mining is emerging as a less environmentally disruptive alternative to conventional mining. But brine valorization is only economically viable if energy use and system complexity are kept in check.
Danfoss APP pumps and iSave ERDs form the foundation of ultra-energy-efficient SWRO and OARO systems. They deliver the precise, stable high-pressure performance needed to make brine valorization commercially and environmentally feasible.
Due to high energy efficiency and reliability, Sea Water Reverse Osmosis (SWRO) is one of the most sustainable and cost effective solutions for converting sea water to potable fresh water. Danfoss is committed to supporting the desalination industry with energy efficient SWRO solutions.
Learning
Pump animation
Learn how an axial piston pump works in this video animation
Case stories
Learn more where to use our APP pumps and iSave ERDs in reverse osmosis applications
Go to case story overview
Articles
Aquaculture is growing worldwide, and we now eat more farmed salmon than wild-caught.
Read our latest blog to learn how SWRO plays an innovative and important role in keeping salmon raised in marine aquaculture free from parasites through freshwater treatment on specially built wellboats.
The scarcity of fresh water resources and the need for additional water supplies is critical in many regions of the world and will be increasingly important in the future. The UN has made availability of water and sanitation for all, one of the Global Development Goals.