Pure Aqua (SEAWATER SYSTEMS ) 2020-12-04T10:16:12+01:00

Seawater Systems

Pure aqua seawater systems

Commercial Seawater Reverse Osmosis Watermaker Systems SWC

Pure Aqua, Inc. manufactures a full line of cruise ro watermakers designed for heavy-duty or continuous service within on and offshore applications requiring marine desalination systems.

Compact & Durable

Pure Aqua Seawater Reverse Osmosis Systems feature a unique and innovative compact design that allows for easy installation in any size area. The high grade corrosion resistant powder coated frame features a modular design that allows for the system to be divided into multiple assemblies for easier mounting. The SWC-Series is also equipped with premium components which include duplex SS centrifugal-type high pressure pump for high performance and corrosion resistance, a programmable computer controller with many built-in features, 1000 psi fiberglass membrane housings for durability and US made seawater membranes for high quality product water.

SWC Series Capacity

Our SWC Series is available with capacities ranging from 380 GPD to 10,000 GPD and a maximum feed water TDS of 42,000 ppm. We offer standard SWC Series units as well as customizable to fit you water application needs. Whether it’s for your luxury yacht, cruise line, or for a five star resort on the beach, Pure Aqua has the right desalination system for you project.

Customizable For Your Needs

When your needs demand continuous-duty, commercial-grade watermaking, the solution is very clear. The Pure Aqua reverse osmosis water maker is efficient and extremely reliable. These marine desalination systems deliver great volumes of potable fresh water with capacities ranging between 380 to 10,000 GPD. Ideal for commercial vessels, island homes, oil platforms, hotels, or large yachts. These water makers convert salt water to fresh water and provide service wherever clean, pure, fresh water is needed. Employing our advanced microprocessor control panel, our saltwater to freshwater converter enables state-of-the-art, total control and user-friendly system customization.

Choosing the right watermaker for boats

Before advancements in technology, having a water maker aboard a cruising boat was considered as a desirable luxury item. Today, most sailboats carry a reverse osmosis system, which improves the overall experience of setting sail, specifically in areas where freshwater is unavailable. While water makers might not be required for boats near dockside, boaters cruising throughout offshore locations depend on the sailboat water maker for daily hydration. Long-term voyages on sea is made much more convenient with a quality watermaker onboard and possible for boaters who dream about living living off the grid. Other basic necessities such as showering and cooking are made possible by sailing with a cruise ro watermaker.

How does a marine water maker work?

Obtaining fresh water is taken for granted in many geographical locations such as in urban areas within developed countries. However, such locations do not afford people with the ease of attaining freshwater supplies in sufficient quantities to drink and use in other applications. For instance, hot/arid areas and remote islands throughout the world provide very few water sources to the people who inhabit these specific regions. One application which depends solely on the usage of a marine water maker for the production of freshwater is offshore installations. As ships cruise further offshore and away from any means of freshwater production from natural sources such as rivers, lakes, springs, and wells, the only real chance of acquiring clean water is from the ocean itself.

While the ocean provides an abundant amount of water to marine water boats, it contains extremely high concentrations of salt, which makes it unusable in virtually any application, including consumption. To remedy this issue, boat owners that look to spend a great deal of time off-shore, make sure to carry a marine water maker on board in order to convert seawater into purified, freshwater. The water produced from marine water makers are of the highest quality and can be used for drinking, washing, showering, etc.

A boat water maker works by utilizing the process of reverse osmosis which specifically targets impurities in water such as salt and minerals and excluding them from the finished product water. This is done through the employment of pressure pumps, which pushes the untreated water through semi-permeable membrane elements that use small pores to filter out these unwanted contaminants from passing along with the water. The contaminants are subsequently flushed away, and the newly purified water is kept and ready to be used. High-pressure pumps are required to use for treatment operations regarding seawater since it possesses greater degrees of salt and other pollutants. A quality sailboat water maker is proven to eliminate up to 99 percent of dissolved salt and minerals from seawater.

Maintenance for watermaker

Watermakers have developed a reputation for becoming hard to sustain over a period of time, but over the years the machinery has changed and, generally, daily maintenance has been made much simpler. However, keeping your water maker polished for quality performance is critical. A boat water maker that is operated in polluted harbors will inevitably lead to clogged parts and require frequent adjustments to the filter media. Boaters can scrape through by having more filters on board but it is ill-advised. The climate is much safer inside the open sea and isolated anchorages. Remember as well the shallowness of the water where you are anchored, since the possibility of tidal movements will often occur and stir up small particles and sediments. This may also lead to additional adjustments in the filter and may even affect other parts. An automatic freshwater flush is a good choice that will clean the membrane portion of the marine water maker after use. It means keeping the housing of the membrane vessel safe from any organic matter which might foul the membrane and lower the capacity to generate fresh water.

Operation Specifications

  • Max. feed water temperature: 42°C

  • Equipment upgrade for TDS up to 50,000 ppm

  • H2S, turbidity and organics must be removed

  • Feed water TDS: 10,000-42,000 ppm

  • Operating pressure: 700 to 1,000 psi

  • pH tolerance range: 3-11

  • Feed water pressure: 40 to 80 psi

  • Antiscalant dosing is required

  • Max. Iron content: 0.05 ppm

Standard Features:

Available Options:

  • Energy recovery on 64K GPD and larger

  • Low & high pressure switches

  • Permeate TDS monitor

  • Stainless steel high pressure piping

  • Stainless steel throttling valve for reject stream

  • Powder coated steel frame

  • Heavy duty 5 micron cartridge prefilter

  • Seawater resistant SS pump

  • Microprocessor/PLC based control panel & VFD

  • Glycerin-filled 316 SS prefilter pressure gauges

  • Product & reject flow meters

  • TFC spiral wound membranes

  • FRP membrane housings

  • 460V/3Ph/60Hz power supply

  • Automatic feed shut off valve

  • Chemical dosing systems

  • Media and Iron prefiltration systems

  • Ozonation and UV sterilization systems

  • Post deionization polishers

  • Remote monitor / control option

  • Product tank level controller switch

  • Feed pH controller with sensor

  • Feed ORP controller with sensor

  • Water and hour meters

  • Feed water conductivity monitor

  • Membrane cleaning skid

  • Automatic hourly flush

  • Feed/Permeate blending

  • Explosion proof RO
  • Export crating

  • Containerized / mobile seawater RO
  • 380-415V/3Ph/50Hz power supply

  • 220V/3Ph/60Hz power supply

Ideal applications for a Reverse Osmosis Water Maker include:

  • Cargo Ships

  • Coastal Developments

  • Hotels & Resorts

  • Seaside Work Sites

  • Seaside Villas

  • Work Boats

  • Fish Processing Plants

  • Boat, Yacht and Sailboat
  • Oil Tankers

  • Island-Based Businesses

  • Villages & Cities

pure aqua seawater systems swi

Industrial Seawater Reverse Osmosis Desalination Systems SWI

For continuous or heavy-duty service in marine applications on and off shore, Pure Aqua manufactures a full line of designed seawater desalination systems.

Desalination System For Potable Water Applications

Seawater Reverse Osmosis (SWRO) is a reverse osmosis desalination membrane process that has been commercially used since the early 1970s. These systems can vary from large desalination plants to a smaller sized seawater to drinking water machine. The typical single pass seawater treatment system consists of the following components:

  • Intake: well or open water
  • Pre-treatment: Filtration and chemical dosing
  • High-pressure pump: to achieve the needed pressure
  • Membrane assembly: to perform the desalination process
  • pH adjustment: to adjust the alkalinity or acid level
  • Disinfection: to prevent any bacterial or organic growth

Pure Aqua, Inc. has manufactured and supplied hundreds of commercial and industrial seawater reverse osmosis desalination systems with feed water TDS up to 45,000 ppm. 

Customizable Desalination Machine Capacity

Our SWI Series is available with capacities ranging from 8,000 GPD to 660,000 GPD and a maximum feed water TDS of 42,000 ppm. We offer standard SWI Series units as well as customizable to fit you water application needs. From your five star resort to the world’s largest desalination plant in the United Arab Emirates, Pure Aqua is ready and able to provide only the best in industrial desalination systems.

Pure Aqua’s desalination machines are capable of removing salts as well as other impurities such as bacteria, sugars, proteins, dyes and constituents that have a molecular weight greater than 150-250 Dalton. Pure Aqua supplies a full line of standard and customizable seawater reverse osmosis desalination systems, all of which are engineered using advanced 3D computer modeling and process design software for accurate and customized solutions.

Questions & Answers

What is a desalination system?

Desalination systems have become an important pillar of the world’s freshwater supplies. Desalination provides an alternative to insufficient clean water production and natural causes which exacerbates this issue such as droughts. Independent of weather patterns, desalination systems are efficient in helping countries or companies in reaching their water demands.

Desalination systems utilize reverse osmosis to purify unwanted contaminants such as salt and minerals from untreated water. This process works through applying high-pressure pumps that force the concentrated water through semi-permeable membranes which consist of small pores that prevent the impurities from passing through. What results from the reverse osmosis system is fresh, clean water that is free of its pollutants which are simultaneously discharged.

Desalination systems are generally used in large-scale plants that must deal with regulatory, budgetary, and practical issues to produce economical and eco-friendly water distribution. There are hundreds of desalination plants throughout the world that are depended upon by regions for economic activity and clean water supplies. Desalination continues to provide solutions that prove its worth by meeting challenging criteria with stellar answers and productivity.

Vist our page – benefits of desalination for more information.

Where are desalination systems becoming increasingly popular?

While desalination systems are becoming a common application throughout the world, certain regions have higher concentrations due to greater water demands. There are estimates of up to 18,000 existing desalination plants that utilize these systems globally, generating more than 25,000 GPD. Almost half of these desalination machines exist and operate in the Middle East and North Africa. This occurrence is unsurprising due to the hot and arid climate of these particular regions.

Although desalination systems continue to grow in usage in those regions, it is expected to intensify in development over the next few decades throughout the United States, Asia, and Latin America. Technology advances in these areas will eventually drive down the percentage of energy needed for water production, which ultimately results in more active desalination systems.

Is a desalination machine cost-effective?

Desalination machines have been known to be very expensive to build and maintain over a long period of time. However, recent enhancements in water treatment components which includes reverse osmosis membrane advancements (high rejection, low energy costs) and energy recovery devices, have made the associated costs of desalination plants much lower. To such an extent that desalination machines have now become a cost-effective alternative source of water distribution. For this reason, most regional and state governments have incorporated them into their water plans as tools to help meet the present and future water goals.

Operation Specifications

  • Max. feed water temperature: 42°C

  • Equipment upgrade for TDS up to 50,000 ppm

  • H2S, turbidity and organics must be removed

  • Feed water TDS: 10,000-42,000 ppm

  • Operating pressure: 700 to 1,000 psi

  • pH tolerance range: 3-11

  • Feed water pressure: 40 to 80 psi

  • Antiscalant dosing is required

  • Max. Iron content: 0.05 ppm

Standard Features

Available Options

  • Powder coated steel frame

  • Heavy duty 5 micron cartridge prefilter

  • Seawater resistant SS pump

  • Microprocessor/PLC based control panel & VFD

  • Glycerin-filled 316 SS prefilter pressure gauges

  • Product & reject flow meters

  • TFC spiral wound membranes

  • FRP membrane housings

  • 460V/3Ph/60Hz power supply

  • Low & high pressure switches

  • Permeate TDS monitor

  • Stainless steel high pressure piping

  • Stainless steel throttling valve for reject stream

  • Automatic feed shut off valve

  • Energy recovery on 64K GPD and larger

  • Booster pump

  • 380-415V/3Ph/50Hz power supply

  • Product tank level switch

  • pH controller with sensor

  • ORP controller with sensor

  • Hour meter

  • Cleaning skid

  • 50 micron bag filter for open intake

  • Carbon prefilter

  • Multimedia prefilter

  • UV sterilizer

  • Custom designed units

  • Export crating

  • Chemical dosing units

The ideal applications for an Industrial Seawater RO system include:

  • Oil Tankers

  • Island-Based Businesses

  • Villages & Cities

  • Cargo Ships

  • Coastal Developments

  • Hotels & Resorts

  • Seaside Work Sites

  • Desalinator for Boat

  • Fish Processing Plants

  • Seaside Villas