Brackish Water RO Membrane Elements
Brackish Water RO Membrane Elements
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Industrial Brackish Water Desalination Reverse Osmosis Membrane Elements

Jozzon JBW series four-inch brackish water desalination membrane elements (JBW-4040, JBW-4040-HF) adopt dry storage and fiberglass winding technology. They are designed for small and medium-sized systems with poor influent water quality and high water production requirements.

99.3%-99.5%
Salt Rejection
225psi (1.55Mpa)
Operating Pressure
80 (8.4)
Effective Membrane Area Ft2
Applied Industries
Pure Water Preparation in Industries Such as Food, Medicine, and Power

Premium 4-Inch BW 4040 RO Membrane for Challenging Feed Water

JOZZON's 4-inch brackish water desalination membrane elements can meet various customer needs and are suitable for systems with slightly poor feed water quality and high product water quality requirements. These membrane elements are dry-type with a fiberglass-wound outer shell, capable of withstanding higher operating pressures and suitable for multi-element systems.

Applied Industries

Food & Beverage Processing: Pure process water preparation and ingredient water polishing. Pharmaceutical & Medical Systems: Pretreatment loops for purified water (PW) and ultrapure systems. Power Generation & Boiler Feed Water: Demineralization and high-pressure boiler feed polishing. Commercial & Industrial Water Stations: Surface and well water desalination, commercial drinking water stations, and industrial wastewater recycling.

Why Choose JOZZON BW 4040

1. Dry Membrane Element for Easy Storage and Transportation

The dry preservation process eliminates the need for soaking in antiseptic fluid, and there is no risk of microbial growth during storage and transportation, and the flushing time before startup is shorter.

2. Fiberglass Casing Wrapped with Excellent Pressure Resistance

The outer layer is reinforced with fiberglass reinforced plastic (FRP) winding, which can withstand higher operating pressure, is suitable for multi-component series systems, and has reliable structural strength.

3. Adapt To Poor Incoming Water Quality

It is specially designed for surface water, groundwater and highly polluted water sources with a salt content of less than 5000ppm and large fluctuations in water quality. It has good water inlet adaptability.

4. Meet High-yield Water Quality Requirements

It can still maintain stable desalination performance even when the incoming water quality is low, meeting the strict standards for pure water or ultrapure water in the food, medicine, electric power and other industries.

5. High Salt Rejection

Delivers consistent desalination performance with a salt rejection rate of 99.3%–99.5%, ensuring high-quality permeate for industrial processes.

6. Industrial-Grade Reliability

Manufactured with strict quality control for continuous operation in demanding industrial water treatment systems.

Aerospace-Grade Antibacterial and Antifouling Genes

Available Models

Membrane Element Model

Description

Effective Membrane Area ft2 (m2 )

Water Production Flow Rate GPD (m³/d)

Stable Desalination Rate (%)

Minimum Desalination Rate (%)

JBW-4040

Standard industrial brackish water RO membrane for stable desalination performance.

90 (8.4)

2400 (9.1)

99.5

99.3

JBW-4040-HR

High-flow version designed to increase permeate production while maintaining excellent salt rejection.

90 (8.4)

2700 (10.2)

99.3

99.0

Extreme Usage Conditions

Maximum Operating Pressure 600 psi (4.14 MPa)
Maximum Influent Flow Rate 16gpm (3.6 m³/h)
Maximum Inlet Water Temperature 45℃
Maximum Influent SDI15 5
Influent Free Chlorine Concentration < 0.1 ppm
Influent ph Range During Continuous Operation 2~12

ph Range of Influent During Chemical Cleaning

(Short-term 30-minute Period)

1~13
Maximum Pressure Drop of a Single Membrane Element 15psi (0.1Mpa)

Test Conditions

Test Pressure 225psi (1.55Mpa)
Test Solution Temperature 25℃
Test Solution Concentration (NaCl) 2000ppm
Test Solution ph Value 7.5
Single Membrane Element Recovery Rate 15%

Membrane Element Size

All units shown in the diagram are millimeters (inches).

A=1016.0mm (40"), B=99.7mm (3.9")
C=19.1mm (0.75"), D=26.7mm (1.05")
Industrial Brackish Water Desalination Series Reverse Osmosis Membrane Elements Structure

FAQ

Q1: What is BW 4040?
A: BW 4040 is a 4-inch industrial reverse osmosis membrane element designed for brackish water desalination. It provides high salt rejection and stable permeate production for small and medium-sized industrial RO systems.
Q2: What feed water is suitable for BW 4040?
A: BW 4040 is suitable for surface water, groundwater, and other brackish water sources with salt concentrations below 5,000 ppm and moderate fluctuations in water quality.
Q3: What industries commonly use BW 4040 membrane elements?
A: Typical applications include food and beverage processing, pharmaceutical manufacturing, power generation, electronics, and industrial pure water production where reliable desalination and consistent water quality are required.
Q4: What are the advantages of dry membrane technology?
A: Dry membrane elements are easier to store and transport because they do not require preservative solutions. They also reduce startup flushing time and eliminate the risk of microbial growth during storage.
Q5: What is the salt rejection rate of BW 4040?
A: The BW 4040 membrane offers a typical salt rejection rate of 99.3%–99.5%, helping ensure stable, high-quality permeate for industrial water treatment applications.
Q6: Does JOZZON provide OEM and customized membrane solutions?
A: Yes. JOZZON supports OEM and customized manufacturing services, including private labeling, product configuration, packaging, and technical support to meet the requirements of distributors, system integrators, and water treatment equipment manufacturers.

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