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Hydranautics CPA7-LD Reverse Osmosis Membrane 8" x 40"

SKU: 11060000031 | 1103070020
£795.00
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Hydranautics Bulk Discounts – Save up to 35%

Quantity discounts automatically applied at checkout. The more you order of the same membrane, the more you save.

See quantity discount breakdown below.

Quantity Discounts

Save up to 35% with our automatic bulk discounts.

Quantity Discounts

2–5 membranes: 7.14% off

6–10 membranes: 20.08% off

11–15 membranes: 25.08% off

16–50 membranes: 26.87% off

51–100 membranes: 30.50% off

101+ membranes: 35.17% off

No discount code required – discounts are applied automatically at checkout.

Discounts apply to quantities of the same membrane model only. Different models cannot be combined.

Technical Resources
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Product Description

The CPA7 series are the newest CPA brackish water RO membranes offering the highest salt rejection in the industry. These ultra-high rejection RO membranes are meant to fulfil your purest water quality requirements.

Where ultra-high purity water is required under difficult water conditions, the CPA7 membranes supply the best combination of high rejection and high flow capability in a brackish water RO element, compared to all commercial brackish water RO elements

The LD variant of these membranes using LD Technology® are available in 4” (CPA7-LD-4040) and 8” (CPA7-LD) diameters. The CPA7 MAX membrane has an active membrane surface area of 440 ft2 (40.9 m2) which reduces capital costs by requiring fewer pressure vessels and lesser floor space.

CPA7 Features and benefits:

• Enhanced membrane chemistry for best permeate quality at lower feed pressure
• Improved chemical resistance for increased membrane life
• Innovative feed spacer design to reduce cleaning frequency and costs
• Proprietary vented seal carrier to eliminate pressure shock damage during system startup

CPA7 Applications:

• Boiler makeup water for power generation
• Industrial waste water recovery
• Zero Liquid Discharge (ZLD) / HERO process
• Ultrapure water for semiconductor manufacturing
• Ultrapure water for pharmaceutical industries

Key Features of CPA7 membranes

• Highest salt rejection – 99.8%
• High rejection of TOC, boron, silica and nitrate
• Greater tolerance to high pH cleanings
• Lower energy consumption
• Best combination of high rejection/ low energy in the membrane industry

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Frequently Asked Questions

What makes the Hydranautics CPA7-LD Reverse Osmosis membrane ideal for high-purity water needs?
The Hydranautics CPA7-LD Reverse Osmosis membrane offers the highest salt rejection in the industry at 99.8%, making it perfect for applications requiring ultra-pure water, such as semiconductor manufacturing and pharmaceutical industries.
How does the CPA7-LD membrane improve chemical resistance and membrane lifespan?
The CPA7-LD membrane features improved chemical resistance due to enhanced membrane chemistry, which helps increase its overall lifespan and performance in challenging water conditions.
Can the Hydranautics CPA7-LD Reverse Osmosis membrane handle high pH cleaning processes?
Yes, the CPA7-LD membrane is designed with greater tolerance to high pH cleanings, allowing for effective cleaning without damaging the membrane or reducing its efficiency.
What are the key applications for the Hydranautics CPA7-LD RO membrane?
Key applications include boiler makeup water for power generation, industrial wastewater recovery, zero liquid discharge (ZLD), and ultrapure water production for semiconductor and pharmaceutical manufacturing.
How does the active membrane surface area of the CPA7 MAX membrane benefit my system?
The active membrane surface area of 440 ft² (40.9 m²) reduces the number of pressure vessels needed, thereby lowering capital costs and saving floor space in your water treatment system.
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