Product Performance and Characteristics

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The fouling-resistant (FR) series membrane elements of OVAY Technology adopt special technology to treat the membrane surface, which changes the charge and smoothness of the membrane surface, increases the hydrophilia of the membrane surface, effectively reduces the fouling of colloid, organism and other fouling, and greatly improves the cleaning and recovery performance of the membrane. At the same time, the 34mil wide inlet water runner design is adopted, which further strengthens the fouling-resistant ability and better washability of membrane elements.

The fouling-resistant (FR) series membrane elements of OVAY Technology have the characteristics of high desalination rate and large flux, which are suitable for desalination of the surface water with salt content below about 10000 ppm, such as groundwater, tap water, and municipal water. They can be widely used in various industrial water treatment such as industrial reclaimed water reuse, municipal water supply and surface water reuse, coal chemical industry, thermal plants boiler make-up water, etc., especially suitable for the treatment of industrial wastewater containing a small amount of organic pollutants and micro-polluted water sources.

Membrane Element Specification and Performance

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Membrane element model	Stable desalination rate (%)	Minimum desalination rate (%)	Average water yield (g/CPD·m³/d)	Effective membrane area (ft²/m²)
OV-FR-4040	99.7	99.5	2200 (8.3)	90 (8.4)
OV-FR-8040 365	99.7	99.5	9600 (36.3)	365 (33.9)
OV-FR-8040 400	99.7	99.5	10500 (39.7)	400 (37.2)

Test Conditions

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Test pressure ————————————————————- 225 psi (1.55 Mpa)
Test solution temperature ————————————————- 25°C
Test solution concentration (NaCl)————————————– 2000 ppm
PH value of test solution ————————————————- 7.5
Recovery rate of single membrane element —————————— 15%

Limit Service Conditions

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Maximum operation pressure ——————————————— 600 psi (4.14 Mpa)
Maximum inlet flow ——————————————————– 75 gpm (17 m³/h) (8040), 16 gpm (3.6 m³/h) (4040)
Maximum inlet temperature ———————————————– 45°C
Maximum inlet SDI₅ ——————————————————– 5
Free Chlorine Concentration in Inlet ————————————– <0.1 ppm
PH range of inlet during continuous operation ————————— 2-11
PH range of inlet during chemical cleaning —————————– 1-13
Maximum pressure drop of single membrane element ——————- 15 psi (0.1 Mpa)

Dimensions of Membrane Elements

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

Note : The dimensions of membrane elements shown in the above figure are marked with tolerances.

Important Information

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Before use or storage, review these additional resources for important information:
Ovay Usage Guidelines
System Operation: Initial Start-Up
Contact an Ovay representative for reasonable technical support.

General Information

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Keep elements moist at all times after initial wetting
Membrane elements must be immersed in a preservative solution to inhibit biological growth
during a long-term outage. Rinse out the preservative before reuse.
Maximum pressure drop across an entire pressure vessel (housing) is 15 ps（i 0.1 Mpa）
Avoid static permeate-side back pressure at all times

The Limited Warranty will be null and void if operating limits and guidelines given in this Product Information Bulletin are not strictly followed and the customer is fully responsible for the effects of chemicals that are incompatible with the elements.

Notice
The use of this product in medical-related contexts does not necessarily guarantee removal of cysts and pathogens or thorough disinfection of oxygen and system. The performance depends on the complete system design, operation, maintenance, and regular replacement of the system.

Notice
Ovay accepts no responsibility for results obtained by the application of this information or the safety or suitability of Ovay’s products, either alone or in combination with other products. Users are advised to make their own tests to determine the safety and suitability of each product combination for their own purposes and ensure that Customer’s workplace and disposal practices are in compliance with applicable laws and other governmental enactments. All data may change without prior notice, due to technical modifications or production changes. Ovay assumes no obligation or liability for the information in this document.

NO WARRANTIES ARE GIVEN; ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED