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By Larry Price

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Commercial Desalination SWC Series

Pure Aqua, Inc. manufactures a full line of seawater desalinators designed for heavy or continuous duty service in marine applications where quality and dependable performance are key. Our SWC series is available with capacities ranging from 380 GPD to 7,600 GPD



  • 5 micron prefilter
  • Premium quality corrosion resistant high pressure pump with motor protected by a precision engineered "pulsation-dampener" on 7.5 hp and higher models
  • High quality, glycerin filled 316 SS pressure gauges
  • Product & Reject flow meters
  • Epoxy coated steel frame
  • TFC spiral wound membranes
  • FRP membrane housing
  • 220V or 460/3Ph/60Hz
  • Stainless steel pressure regulating valve, for reject stream
  • High pressure tubing
  • Automatic feed water shut off valve
  • Easy access control panel

water purification systems

By Larry Price

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Commercial Reverse Osmosis Systems RO-200 Series


Reverse osmosis, also known as hyper filtration, is used to purify water and remove salts and other impurities. It is also capable of rejecting bacteria, sugars, proteins, particles, dyes, and other constituents that have a molecular weight of greater than 150-250 dalton.

Standard Features

* Microprocessor Control Panel
* Powder coated frame (White Color)
* Heavy duty 5 micron sediment prefilter
* Corrosion resistant & efficient high pressure pump
* High efficiency motor
* FRP pressure vessel
* Product and Reject Flow Meters
* Low pressure switch
* Manual flush
* Electric feed solenoid valve
* High rejection TFC spiral membranes
* Tagging and identification of instrumentation
* Heavy duty high pressure tubing
* Unique non corrosive high pressure regulating valve
* Water tight power wiring / shrouding
* Liquid filled pressure gauges (Pre and Post Filter, Pump Pressure)
* Factory tested
* 220V/1Ph/60Hz

Water Purification Systems

By Larry Price

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Parks - High Grade Vinylester Tank Liner


High Grade Vinylester Tank Liner

* Fiber-free inner surface suitable for all standard water treatment applications, including de- ionization
* Offers wide chemical resistance; not adversely affected by regenerating chemicals (acid-caustic) or DI water
* Continuous stands of fiberglass reinforced with high strength epoxy resin
* Rustproof and corrosion-resistant Strong, Filament Wound Outer Laminate



Precision Injection-Molded Threaded Tank Openings

* Filament wound fiberglass flanged top and bottom openings are also available
* Both accommodate all industry standard valves and fittings

Full Coupling, Threaded Dome and Side Hole Options

* Available in all 24" to 48" vinylester tanks
* Dome holes offered in 1.5" and 2" configurations
* Dome holes offered in 1.5" and 2" configurations
* Side holes (up to two per tank) available in 2" and 3" diameters

Operating Parameters

* Maximum operating pressure: 150 PSI (10.2 BAR)
* Maximum operating temperature: 120°F (49°C)

Tank Connections

* The following are available for bothsingle and double entry tanks:
o - 4" - 8" UN
o - 6" - 8" UN
o - 4.5" Buttress
o - 6" Flanged
* B, C, D dimensions for top and/or bottom flangedopening tanks:
o -Top Flange: Increase tank height listed by 2.5" (6.4 cm) for 24", 30", and 36" tanks, and by 3" (7.6 cm) for 42" and 48" tanks.
o - Bottom Flange: Clearance from the floor to tank bottom is reduced by 2.5" (6.4 cm) for 24", 30", and 36" tanks, and by 3" (7.6 cm) for 42" and 48" tanks.

Industry Approved

* Tanks designed and tested to meet industry standards, ensuring top field performance:
* B, C, D dimensions for top and/or bottom flangedopening tanks:
o - NSF®Standard 44
o - UDT

Warranty

* All commercial/light industrial tanks are backed by an exclusive limited manufacturer’s warranty:
o - Sizes 24" through 48": 5-year limited warranty
o - 2-year limited warranty in de-ionization application

Residential / Light Commercial Tanks Seamless, One-Piece ABS Tank Liner

* Blow molded ABS shell promotes superior adhesion to filament wound outer laminate
* Smooth, fiber-free inner surface with high chemical resistance
* Not adversely affected by regenerating chemicals (acid-caustic) or DI water
* Strong, Filament Wound Outer Laminate
* Continuous strands of fiberglass reinforced with high strength epoxy resin;
* Excellent impact and abrasion resistance
* Rustproof and corrosion-resistant

Precision Injection - Molded Threads

* Accommodate all industry standard valves and fittings

Dome Hole Option

* Available in 8" through 16" diameter tanks
* Injection molded ABS fitting provides a 1" opening with full internal threads
* Fill cap features o-ring seal with straight thread; no tapered thread binding on the tank wall

Operating Parameters

* Maximum operating pressure: 150 PSI (10.2 BAR)
* Maximum operating temperature: 120°F (49°C)

Industry Approved

* Tanks designed and tested to meet industry standards, ensuring top field performance:
o NSF®Standard 44

o – UDT
o – WQA Standard S-100 Warranty

* All residential and light commercial tanks are backed by an exclusive limited manufacturer’s warranty:
o Sizes 5"-13": 10-year limited warranty
o Sizes 14"-24": 5-year limited warranty

* Residential/Light CommercialTank Fittings and Accessories
o A full line of closures, adapters, hubs, laterals and other fittings and accessories are available from Park International
water purification systems

By Larry Price

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Series 200 & 250 Pulsafeeder Grundfos Goulds CAT Pumps Flint


Series 200 & 250

The Series 200 & 250 are mechanically activated, heavy duty diaphragm feed pumps that provide excellent efficiency under strenuous conditions.



The Series 200 & 250 are mechanically activated, heavy duty diaphragm feed pumps that provide excellent efficiency under strenuous conditions. The Series 200 Pumps are popular for their rugged design for continuous duty operation, while the Series 250 combines the power and repeatability of piston pumps with the chemical resistance of diaphragm pumps for high pressure applications.

Versatility.
The Series 200 offers feed rates from 10 to 120 GPD (1.5 to 18.9 LPH) and operating pressures up to 150 PSI (10.3 bar), while the Series 250 offers feed rates to 108 GPD (17 LPH) and operating pressures up to 225 PSI (15.5 bar).

Feed Rate Control.
The output is fully adjustable over the entire operating range.

Durability.
Strong fibercore casing and corrosion-resistant rubber and plastic
solution handling components.

Reliability.
Oil immersed gear train and heavy duty, fan-cooled motor with thermal overload protection.

Long Life.
Metal reinforced, short stroke diaphragm.

Bleed Valve Assembly
Aids in priming and relieves pressure from the discharge line.

High Torque Motor-Gear Coupling.
Ensures start-up under maximum pressure.
Many accessory fittings and assemblies available to enhance performance and simplify operation.
reverse osmosis systems

By Larry Price

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Fleck Control Valves for Softeners & Media Filters



Fleck Controls are also available with the following options upon request.

* Hot Water
* Bypass Valve
* No Hardwater Bypass
* Backwash Filter
* Electronic Timer
* Manual Operation
* Upflow Regeneration
* Service Valve Operation
* Meter Initiated Regeneration

Electronics

Fleck offers a wide range of controller options to choose from. There's certain to be an alternative that is appropriate for your particular system needs.

Electromechanical (EM) :
Simple to program and easy to service. Our robust electromechanical powerhead is designed with heavy-duty wide plastic gears and a simple design for quick access to all internal components.

Fleck SXT :

Fleck SXT controls provide easy, step-by-step programming at the touch of a button. The same SXT control drives 6 different Fleck valves, saving you time in installation, service and training.

Electronics (S, XT)

Advanced, yet intuitive and user-friendly electronic controllers for a wide range of applications.

reverse osmosis systems
water purification systems

By Larry Price

0

RO pretreatment Systems


Reverse osmosis (RO) is a filtration method that removes many types of large molecules and ions from solutions by applying pressure to the solution when it is on one side of a selective membrane. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective," this membrane should not allow large molecules or ions through the pores (holes), but should allow smaller components of the solution (such as the solvent) to pass freely.

Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other substances from the water molecules. This is the reverse of the normal osmosis process, in which the solvent naturally moves from an area of low solute concentration, through a membrane, to an area of high solute concentration. The movement of a pure solvent to equalize solute concentrations on each side of a membrane generates a pressure and this is the "osmotic pressure." Applying an external pressure to reverse the natural flow of pure solvent, thus, is reverse osmosis.

The process is similar to membrane filtration. However, there are key differences between reverse osmosis and filtration. The predominant removal mechanism in membrane filtration is straining, or size exclusion, so the process can theoretically achieve perfect exclusion of particles regardless of operational parameters such as influent pressure and concentration. Reverse osmosis, however involves a diffusive mechanism so that separation efficiency is dependent on solute concentration, pressure and water flux rate.

Pure Aqua offers a wide range of pre treatment such as:

* Multi Media Filters
* Activated Carbon Filters
* Automatic Water Softeners
* Chemical dosing Systems
* Iron Removal Filters
* Pre UV Sterilizers
* Ozonation Systems

Pretreatment
Pretreatment is important when working with RO and nanofiltration (NF) membranes due to the nature of their spiral wound design. The material is engineered in such a fashion as to allow only one-way flow through the system. As such, the spiral wound design does not allow for back pulsing with water or air agitation to scour its surface and remove solids. Since accumulated material cannot be removed from the membrane surface systems, they are highly susceptible to fouling (loss of production capacity). Therefore, pretreatment is a necessity for any RO or NF system. Pretreatment in SWRO systems has four major components:

* Screening of solids: Solids within the water must be removed and the water treated to prevent fouling of the membranes by fine particle or biological growth, and reduce the risk of damage to high-pressure pump components.

* Cartridge filtration: Generally, string-wound polypropylene filters are used to remove particles between 3 - 5 microns.

* Dosing: Oxidizing biocides, such as chlorine, are added to kill bacteria, followed by bisulfite dosing to deactivate the chlorine, which can destroy a thin-film composite membrane. There are also biofouling inhibitors, which do not kill bacteria, but simply prevent them from growing slime on the membrane surface.

* Prefiltration pH adjustment: If the pH, hardness and the alkalinity in the feedwater result in a scaling tendency when they are concentrated in the reject stream, acid is dosed to maintain carbonates in their soluble carbonic acid form.

CO3-2 + H3O+ = HCO3- + H2O
HCO3- + H3O+ = H2CO3 + H2O

* Carbonic acid cannot combine with calcium to form calcium carbonate scale. Calcium carbonate scaling tendency is estimated using the Langelier saturation index. Adding too much sulfuric acid to control carbonate scales may result in calcium sulfate, barium sulfate or strontium sulfate scale formation on the RO membrane.

* Prefiltration antiscalants: Scale inhibitors (also known as antiscalants) prevent formation of all scales compared to acid, which can only prevent formation of calcium carbonate and calcium phosphate scales. In addition to inhibiting carbonate and phosphate scales, antiscalants inhibit sulfate and fluoride scales, disperse colloids and metal oxides, and specialty products can be to inhibit silica formation.

reverse osmosis systems
water purification systems

By Larry Price

0

Why I Don't Use a Reverse Osmosis Water Filter

Let's face it; the water we drink is as significant as the air we breathe. So I want to talk in relation to why not use the reverse osmosis filter water.

Water is essential for life! We can not be devoid of it. If we had no water, our parish! That's why I have a passion for finding the truth about how we can improve the superiority of drinking and bathing water inches of water is priceless. I try to instruct about water filters, and in particular, reverse osmosis filter.

This water filtration system was very popular at a time. The people were so single-minded to make the water safe to drink, which the company worked hard to meet the needs of consumers.
Thus, the Advent of reverse osmosis systems water filters. Another term that you can use is water sanitization of the processor. The end result is distilled water.

The man was centuries drinking pure water, fresh lakes and stream. That is, until the industrialization and the common practices of cultivation, which introduced chemicals, fertilizers and other stuff in our water systems? He reaped the rewards of not only hydration, which is indispensable for life, but also took in much needed minerals like calcium, magnesium and potassium that your body needs naturally. Nowhere in history or science had we read about our body need for distilled water. Visit : http://www.pure-aqua.com