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CPA5-LD-4040 Hydranautics Membranes

CPA5-LD-4040 Hydranautics Membranes

Hydrocomponents & Technologies Inc.

Description

CPA5-LD-4040 Hydranautics Membranes.

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PLEASE REFERENCE TABLE BELOW


🧼 Hydranautics CPA5-LD-4040 Low-Fouling Brackish Water RO Membrane (2,100 GPD)

 

The Hydranautics CPA5-LD-4040 is a 4-inch diameter Brackish Water Reverse Osmosis (BWRO) membrane element specifically engineered for high-rejection performance combined with enhanced fouling resistance. This element is part of Hydranautics' premium CPA (Composite Polyamide) series, which sets the standard for high-performance RO membranes globally.

The "LD" (Low Differential Pressure) technology utilizes a proprietary 34 mil feed spacer that is designed to minimize bio-growth and prevent the trapping of colloidal particles. This significantly reduces fouling and improves the effectiveness of cleanings, extending the element's lifespan and reducing system downtime—a critical advantage in waters prone to biological or colloidal contamination. The CPA5-LD-4040 delivers a high permeate flow of 2,100 GPD and maintains an impressive nominal salt rejection of 99.7% under standard test conditions (225 psi).

Technical Specifications Summary

SPECIFICATION DETAILS NOTES
Model Number CPA5-LD-4040 'LD' indicates Low-Fouling, 4-inch x 40-inch element.
Manufacturer Hydranautics (Nitto) High-rejection, low-fouling technology.
Membrane Type Brackish Water Reverse Osmosis (BWRO) High Rejection, Thin Film Composite.
Nominal Permeate Flow 2,100 GPD (7.95 ) Flow rate is nominal at 225 psi.
Nominal Rejection () 99.7% (Min 99.5%) Very high salt rejection rate.
Active Area (7.43 ) Standard area for a 4040 element.
Max Applied Pressure 600 psi (4.16 MPa) Maximum pressure limit for continuous operation.
Max Operating Temp () Maximum fluid temperature limit.
Feed Spacer Thickness 34 mil Proprietary thickness for low-fouling (LD) performance.

 

 
Model # Diameter x Length GPD Rejection Typical Pressure
CPA5-LD-4040 4.0 x 40 2,100 99.70% 225

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