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Hydranautics

CPA2-4040 Hydranautics Nitto 2,250 GPD at 225 PSI 4 x 40 inch 99.5% Rejection Membranes

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Hydranautics CPA2-4040 High Rejection RO Membrane

 

The Hydranautics CPA2-4040 is a high-performance Brackish Water Reverse Osmosis (RO) Element recognized as the industry benchmark for applications requiring maximum salt removal. Part of the renowned CPA (Composite Polyamide) series, this 4-inch membrane utilizes advanced polyamide thin-film composite technology to achieve superior rejection rates, making it the ideal choice for producing ultra-pure water for pharmaceutical use, power generation (boiler feed), and semiconductor manufacturing.

With a permeate flow rate of 2,250 GPD, the CPA2-4040 balances productivity with exceptionally high permeate quality. It is designed to operate at a standard test pressure of 225 PSI, effectively removing 99.5% of dissolved salts, silica, and TOC (Total Organic Carbon) from tap or brackish feed water. Its robust construction and standard dimensions allow it to fit seamlessly into any standard 4040 stainless steel or PVC pressure vessel.

 

SPECIFICATION

DETAILS

Model Number

CPA2-4040

Manufacturer

Hydranautics (Nitto)

Membrane Type

Brackish Water RO

Material

Composite Polyamide

Permeate Flow Rate

2,250 GPD (8.5 m³/d)

Stabilized Salt Rejection

99.5%

Minimum Salt Rejection

99.2%

Test Pressure

225 PSI (15.5 Bar)

Max Operating Pressure

600 PSI (41 Bar)

Max Operating Temp

113°F (45°C)

Dimensions

4.0" Diameter x 40" Length

Active Surface Area

85 ft² (7.9 m²)

Feed Spacer Thickness

31 mil

pH Range (Continuous)

2 - 11

 

 

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