Sea Water Desalination Watermaker Land Based SW9000-LX, 9000 GPD by AMPAC USA is fully automated and suits vessels, ships, and boats.
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Sea Water Desalination Watermaker Land Based SW10K-LX, 10,000 GPD by AMPAC USA is fully automated system for Land-Based Applications as well.
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Mobile Seawater Desalination Plant | SW80K-LXC - Fully Packaged (Containerized) Seawater Desalination Watermaker - Model: SW80K-LXC is a Turnkey System.
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Seawater Desalination Reverse Osmosis Watermaker 2000-4000 GPD, SW2000-LC by AMPAC USA meets all water purification standards.
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Mobile Seawater Desalination Plant | SW100K-LXC - Fully Packaged (Containerized) Seawater Desalination Watermaker - Model: SW100K-LXC is a Turnkey System.
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Sea Water Desalination Watermaker Land Based SW500-LC by AMPAC USA is highly customizable, cost-effective and ready to ship.
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Sea Water Desalination Land based watermakers 20,000 GPD, SW20K-LX by AMPAC USA serves boats, ships, PSV, MPSV and AHTS type vessels.
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Mobile Seawater Desalination Watermaker System, SW100K-LX by AMPAC USA lets you get pure water on your ship, boat or vessel anywhere.
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Sea Water Desalination Watermaker Land Based SW9000-LX, 9000 GPD by AMPAC USA is fully automated and suits vessels, ships, and boats.
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80k Sea Water Desalination Watermaker 80,000 GPD, SW80K-LX by AMPAC USA allows you to have pure water on ships, boats, and vessels.
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Sea Water Desalination Watermaker Land Based 60,000 GPD, SW60K-LX by AMPAC USA provides pure water on large boats, vessels, and ships.
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Seawater Desalination Watermaker Land Based 6,000 GPD by AMPAC USA is perfect for long voyages.
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Sea Water Desalination Watermaker Land Based 5000 GPD / 19,000 LPD, SW5000-LX by AMPAC USA lets you get pure water on every ride.
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Sea Water Desalination Watermaker Land Based 40,000 GPD, SW40K-LX can be added to MPSV, PSV and AHTS type vessels, ships and boats.
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Seawater Desalination Land based Watermakers 4000 GPD/ 15,140 LPD, SW4000-LX by AMPAC USA provides the purest water.
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SW3000-LX, Sea Water Desalination Land based watermakers, 3000 GPD offer sea water desalination for Large Boats, Ships, PSV, MPSV and AHTS type vessels.
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Twin Redundant Seawater Desalination Watermakers Built on one Skid 12,000 GPD Each, tota; 24,000 GPD, Model: SW24000-LX by AMPAC USA.
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Seawater Desalination Watermaker Land Based SW12000-LX |12000 GPD/ 45,000 LPD / 1.9m³/hr. are for large boats, ships, PSV, MPSV and AHTS type vessels.
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Sea Water Desalination Watermaker Land Based SW2000-LX by AMPAC USA suits huge boats, ships, PSV, MPSV and AHTS type vessels.
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SWRO sea water desalination land based watermaker by AMPAC USA makes seawater drinkable.
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Sea Water Desalination 6000 GPD, SW6000 by AMPAC USA meets water needs of communities/industries.
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Seawater Desalination Reverse Osmosis Watermaker 600 GPD by AMPAC USA is perfect for boats and small ships.
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Seawater Desalination Reverse Osmosis Watermaker 5000 GPD is offered by AMPAC USA for large water needs.
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Seawater Desalination Reverse Osmosis Watermaker 4500 GPD, SW4500 offers pure water anywhere.
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Seawater Desalination Reverse Osmosis Watermaker 3000 GPD, SW3000 makes boat rides safe by providing you pure water anywhere.
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Seawater Desalination Reverse Osmosis Watermaker 300 GPD by AMPAC USA provides pure water anywhere you are.
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Seawater Desalination Reverse Osmosis Watermaker 2000 GPD, SW2000 by AMPAC USA meets all water purification standards.
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Seawater Desalination Reverse Osmosis Watermaker 200 GPD by AMPAC USA is best for every application.
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Seawater Desalination Reverse Osmosis Watermaker 1000 GPD, SW1000 is a marine-based water purifier.
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Marine Seawater Desalination Reverse Osmosis Watermaker 100 GPD (380 LPD ) by AMPAC USA are sold at less than market prices.
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Military Sea Water Desalination 5000GPD, ROWPU SW5000-ML is awesome for navy ships. To buy this Military Water Purification System available at best price & deliver swiftly, call at 909-548-4900.
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Military Sea Water Desalination - ROWPU SW4500, 4500GPD is perfect for Navy and military units all over the world.
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Portable Emergency Seawater Desalination Watermaker SW150,150GPD/560LPD capacity is available at best prices at AMPAC USA.
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Off-Shore Sea Water Desalination Watermaker SW20K-Class1-Div2 by AMPAC USA is fully automated and best for oil platforms.
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Off-Shore Sea Water Desalination Watermaker, SW10K-C1D2 by AMPAC USA is fully automated and explosion-free.
View detailsFrequently Asked Questions
What energy does seawater reverse osmosis require, and how has that changed with energy recovery devices?
SWRO without energy recovery requires 8-12 kWh per cubic meter of product water. Modern plants using pressure exchangers or isobaric energy recovery devices reduce energy consumption to 3-4 kWh per cubic meter, recovering up to 98% of the hydraulic energy in the brine stream. AMPAC USA specifies energy recovery on all SWRO systems above 50,000 GPD because the payback period on the equipment is typically under two years at commercial electricity prices.
What is the typical TDS of seawater and what operating pressure does SWRO require?
Open ocean seawater averages 35,000 mg/L TDS with an osmotic pressure of approximately 400 psi. SWRO systems operate at feed pressures of 800-1,200 psi to overcome osmotic pressure and achieve practical flux rates of 6-14 LMH. Coastal waters with freshwater mixing may have TDS as low as 10,000-20,000 mg/L, which reduces required operating pressure significantly and improves energy efficiency.
What pretreatment is required before SWRO membranes?
Seawater contains suspended solids, biological organisms, organic matter, and scaling ions that would foul SWRO membranes within days without pretreatment. Standard pretreatment includes coagulation, dual-media filtration or ultrafiltration, and cartridge filtration to achieve a Silt Density Index below 3. Antiscalant dosing prevents carbonate and sulfate scale, and chlorination followed by dechlorination controls biological fouling while protecting the polyamide membrane from oxidative damage.
What recovery rate is achievable with seawater RO, and what limits it?
SWRO systems typically operate at 40-55% recovery, meaning 40-55% of the feed seawater becomes product water and 45-60% becomes concentrated brine at 60,000-70,000 mg/L TDS. Recovery is limited by the increasing osmotic pressure of the concentrate, the solubility limits of calcium sulfate and other scaling compounds, and the increasing energy required to maintain flux as brine concentration rises. Pushing recovery above 55-60% requires specialized scale inhibition and higher operating pressures.
What product water quality do AMPAC USA SWRO systems deliver?
Our SWRO permeate typically reaches 200-400 mg/L TDS directly from the membrane, with chloride levels around 50-100 mg/L. Most potable water applications then pass the permeate through a calcite or lime contactor to add alkalinity and hardness, raising pH and reducing the water's corrosivity toward distribution piping. For industrial applications requiring lower TDS, a second-pass RO or mixed-bed DI polishes the permeate further.