High-Pressure Pumps For Mobile and Containerized Seawater RO Applications
Danfoss RO Solutions’ Pumps Keep Fresh Water Flowing Around the World
Climate change, natural disasters and humanitarian relief projects often mean that clean drinking water can suddenly become a precious commodity that saves lives. Danfoss pumps are particularly well-suited for small and large-scale mobile applications due to the compact design which is the smallest in the RO market, as well as the extremely high efficiency.
Our compact footprint and extreme reliability put Danfoss high-pressure pumps at the heart of mobile and containerized seawater RO applications that can be moved into critical areas at short notice. A partial list of references includes:
- US Army
- US Navy
- US Marines
- Danish Army
- Canadian Army
- British Navy
- Turkish Navy
- Malaysian Navy
- Russian Navy
High-Pressure Pumps for Land Based Seawater RO Applications
Danfoss RO Solutions’ APP pumps keep fresh water flowing at hotels, resorts and other facilities in coastal regions around the world.
APP pumps are suitable for both brackish water (5,000-20,000 ppm/mg/l) and seawater (20,000-50,000 ppm/mg/l).
Pump Retrofit Cuts Energy and Maintenance Costs at Resort
The Challenge: Shangri-La’s Mactan Resort and Spa, located on Cebu Island, is the Philippines’ mpremier five-star resort, requiring 1,000 m³ of fresh water per day for its 547 rooms, 7 restaurants and bars, massive pools and spa. When the lush seaside retreat needed to retrofit its old seawater plant, management’s main objectives were to reduce energy costs and minimize maintenance.
The Solution: The Danfoss APP21 pump was chosen as the plant workhorse, along with an energy recovery device. Energy consumption was reduced by an impressive 1.7 kWh/m3, which corresponds to yearly savings of € 62,050. Since the selflubricating APP21 requires no preventive care, maintenance was reduced to a minimum. As an added bonus, noise pollution from the old pump was so radically reduced that the plant is now virtually inaudible from all floors – so guests at Shangri-La’s Mactan Resort and Spa can relax more than ever.
Wind-Driven RO System Tested By Dutch University
The Challenge: Delft University of Technology wanted to harness a traditional agricultural windmill to drive a RO plant capable of providing fresh water to a village of 500 inhabitants. Despite the need for high pressure pumping, no electricity would be available to power the pump.
The Solution: Researchers chose Danfoss SWPE 1.5-1.2 due to the exceptional energy efficiency of the APP pump and APM energy recovery. But it was the pump’s long maintenance-free operation that was particularly appealing for use in remote areas. After successful testing in the Netherlands, the unit was moved to Curacao for operation. The plant is expected to produce 5 m3 of fresh water per day.
Danfoss APP pumps are available in a wide range of sizes, from 0.6 to 30 m3/h (2.6 to 135 gpm), and are thus ideal for all small and medium-sized seawater RO applications.
High-Pressure Pumps For Marine and Offshore Seawater RO Applications
Whether on offshore rigs or aboard private yachts and commercial ships, Danfoss high-pressure pumps are at the heart of seawater RO systems across the seven seas. We have extensive experience in working with OEMs to provide dedicated solutions for small and medium-sized applications at sea.
The Royal Navy Converts Aircraft Carrier from Flash Distillation to RO
The Challenge: HMS Ark Royal is the Royal Navy’s largest Invincible-class light aircraft carrier, with a crew of 685 and a Fleet Air Arm of 366. The ship was originally fitted with flash distillers to purify water, but their high energy and maintenance costs led to a conversion to seawater RO in 2005-2006. Salt Separation Services Ltd, who built the new RO plants, wanted to find the right highpressure pumps for the job.
The Solution: Danfoss APP pumps were selected due to their high reliability, low maintenance and small footprint – and are now at the heart of no less than five RO plants aboard HMS Ark Royal:1 × 150 m3/day, 2 × 100 m3/day, and 2 × 5 m3/day. On the three larger plants, the compact pumps are built into shock-mounted skids so they can easily be routed into position.
Sea water with energy recovery
Application: New water maker for hotels
Place of installation: Spain - Mainland
Application: Brackish water
3 APP 2, 2 equipped with inverters for flexible use at university
Place of installation: UK
Sea Water with Energy Recovery
Application: Municipal water makers
4 parallel pumps together with energy recovery.
Place of installation: Peru
Sea Water with Energy Recovery
Application: Water maker
2 x APP 8.2 as high-pressure feed pump together with energy recovery
Place of installation: Lanzarote
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