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PWG 4021ND Low Pressure Reverse Osmosis Membrane Element 4" x 21"

SKU: 11062000006 | 1112020001
£234.53
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Technical Resources
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Combining energy efficiency with high rejection

The energy required to pressurize RO feed water is the largest contributor to the total energy consumption of the RO plant. PWG ND membranes are the choice for applications demanding high-energy efficiency, with uncompromised productivity and salt rejection. Operating at significantly lower pressures, PWG ND elements produce high quality water in a range of water treatment applications, ensuring energy cost savings.

PWG ND membranes are used in the treatment of drinking water, industrial process waters, municipal and industrial waste water recovery and reuse because of this exception performance capability. These membranes also serve as part of polishing units in seawater desalination plants when boron rejection is critical.

Equivalent to:
Oltremare Low1-4021
Hydranautics ESAP1-4021

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Frequently Asked Questions

What are the main advantages of using the PWG 4021ND Low Pressure Reverse Osmosis Membrane Element 4"?
The PWG 4021ND Low Pressure Reverse Osmosis Membrane Element 4" offers high salt rejection and energy efficiency by operating at lower pressures, reducing energy costs. It provides high-quality water production suitable for diverse applications like drinking water treatment, industrial processes, and wastewater recovery without compromising productivity.
How does the PWG 4021ND membrane compare to other similar membranes in water treatment applications?
The PWG 4021ND membrane is comparable to products like Oltremare Low1-4021 and Hydranautics ESAP1-4021, offering similar high rejection rates and energy-efficient performance. Its specialized design makes it ideal for applications requiring boron rejection, such as seawater desalination polishing units.
What care and maintenance should be followed to ensure optimal performance of the PWG 4021ND Low Pressure RO membrane?
To maintain optimal performance, regularly clean the PWG 4021ND membrane with suitable cleaning solutions and monitor operating pressures to avoid damage. Proper pretreatment of feed water also extends membrane lifespan and ensures consistent high rejection and energy efficiency.
What are the main benefits of using the PWG 4021ND Low Pressure Reverse Osmosis Membrane Element?
The PWG 4021ND membrane combines energy efficiency with high salt rejection, operating at lower pressures to save energy costs while producing high-quality water for various treatment applications.
In which water treatment applications can the PWG 4021ND membrane be used effectively?
This membrane is suitable for treatment of drinking water, industrial process waters, municipal and industrial wastewater recovery, and reuse, as well as polishing in seawater desalination where boron rejection is important.
How does the PWG 4021ND membrane contribute to energy savings in water treatment plants?
By functioning at significantly lower pressures, the PWG 4021ND membrane reduces energy consumption during operation, leading to cost savings without compromising productivity or salt rejection.
Can the PWG 4021ND membrane replace other similar products in the market?
Yes, the PWG 4021ND membrane is equivalent to products like Oltremare Low1-4021 and Hydranautics ESAP1-4021, making it a compatible choice for replacement or upgrade.
What sizes and configurations are available for the PWG 4021ND membrane?
The membrane comes in a 4-inch diameter by 21-inch length configuration, designed for easy integration into existing reverse osmosis systems.
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