I.ESPA®(Energy Saving PolyAmideThis type of reverse osmosis membrane element is developed by Hydranautics of the United States1995years5It was the first in the world to introduce energy-saving low-pressure high-throughput composite reverse osmosis membranes. It features a low operating pressure (approximately lower than that of conventional low-pressure composite reverse osmosis membranes)25%-40%It has a higher water flux while maintaining a high desalination rate.ESPA®The series of reverse osmosis membrane elements offer a wider range of choices for supporting equipment such as water pumps, pressure vessels, pipelines and valves, and can meet the working requirements with a smaller power motor. All these have significantly reduced the manufacturing cost of equipment and the operating expenses of the system, and saved a large amount of energy, which has led to the wider promotion and recognition of reverse osmosis desalination technology.

As people keep putting forward higher requirements for the operating pressure of reverse osmosis membranes, Hydranautics of the United States has been constantly enriching and improving low-pressure reverse osmosis membranesESPA®Series. At presentESPA®"Series8Inch film elements have developed to five models:ESPA1(Standard low-pressure reverse osmosis membrane)ESPA2(High desalination rate low-pressure reverse osmosis membrane)ESPA4(High-water low-pressure reverse osmosis membrane)ESPA2+(High membrane area, high desalination rate, low-pressure reverse osmosis membrane) andESPAB(High boron removal low-pressure reverse osmosis membrane)4Inch film elements have also developed into three models:ESPA1-4040,ESPA2-4040andESPA4-4040.

So far, Hydranautics of the United States hasESPA®The series of low-pressure reverse osmosis membranes are membrane elements with high water production, low operating pressure and high desalination rate under the same operating conditions in the world. In the influent salt contentTDS"Lower than1 000 mg/LAt that timeESPA®The series of membrane elements have irreplaceable advantages (for detailed specifications and performance, please refer to the following models).

8Inch film element

ESPA1  ESPA2  ESPA2+ ESPA4  ESPAB

4Inch film element

ESPA1-4040  ESPA2-4040  ESPA4-4040  YQS-4040Salt jelly

Ii.CPAThe membrane is developed by Hydranautics of the United States1989The aromatic polyamide composite membrane launched in the year is used in industrial reverse osmosis systems for desalinating brackish water.CPA(Composite PolyAmideThe series of low-pressure high-desalination reverse osmosis membrane elements feature a high desalination rate. This conclusion is drawn based on the actual performance of millions of membrane elements currently in use. Hydranautics of the United StatesCPAThe series of reverse osmosis membrane elements, with their outstanding performance, have become the manufacturing standard for reverse osmosis membrane elements in brackish water desalination.ISO 9001:2000The acquisition of the certificate ensures that we produce high-quality products to meet the increasingly strict performance requirements of membrane elements in the water treatment industry.

It should be particularly pointed out thatCPA3-LDIt's a tradition.CPA3Upgraded products of membrane elements.CPA3-LDThe Nitto Denko Group was adopted/Hydranautics of the United StatesLDThe technology has widened the thickness of the water inlet screen and changed its shape, makingCPA3-LDThe operating pressure and pressure loss have been significantly reduced. Meanwhile, due to the change of the water inlet screen,CPA3-LDThe pollution resistance of membrane elements has also been significantly enhanced, reducing the cleaning frequency of reverse osmosis systems and extending the service life of membrane elements.

CPAThe series of low-pressure reverse osmosis membrane elements mainly include four types8Inch film elementCPA2,CPA3,CPA3-LDandCPA4) and one kind4Inch film elementCPA2-4040" For those groundwater treatment systems that require high water production and high desalination rates,CPAThis series is your best choice. (For detailed specifications and performance, please refer to the following models.)

8Inch film element

CPA2   CPA3   CPA3-LD  CPA4

4Inch film element

CPA2-4040