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What is the industrial RO membrane size?





Compared with the household RO membrane, the industrial RO membrane has a higher water yield and desalination rate, and the specifications of the industrial RO membrane are abundant. So a lot of unclear users have to struggle with the specification of the filter for a while. Today I'm going to talk about industrial RO membranes which are typically a few inches long.


In the selection of filter film, in addition to the parameters of aquatic products, the size of filter film is also a relatively important selection factor. Especially when the filter membrane is replaced, the membrane elements with different specifications cannot be filled into the membrane shell, and the original water treatment system may need to be changed. Therefore, industrial RO films are generally 8 "and 4" conventional film elements, except for special water inlet requirements.

The 8-inch reverse osmosis membrane is also commonly referred to as 8040 and the 4-inch is 4040. The front 40 and 80 are the diameter of the membrane element section, which is up to 4 inches and 8 inches, respectively. The next 40, 21, and 40 are the length of the membrane element, referring to 40 inches, 21 inches, and 40 inches, respectively. There's no basis for division, as a convention, it's all used to.

For example, if it's 8 inches in diameter and 40 inches in length, it's 8040. If it's 2.5 inches in diameter and 21 inches in length, it's 2521. Therefore, the RO membrane specification can be directly determined by the membrane element model name during the selection process.

Besides the product size, what is the parameter information of reverse osmosis membrane?

Recovery; The percentage of water in a membrane system that is converted into producing or transmitting water.

Desalination rate; Percentage of total soluble impurity concentration removed from system influent by reverse osmosis membrane, or percentage of specific components such as divalent ions or organic matter removed by nanofiltration membrane.

Through the salt rate; The inverse of the desalination rate, which is the percentage of dissolved impurities in the water that penetrates the film. Permeate Purified water produced by a membrane system.

Flux; The rate of fluid flow per unit membrane area, usually expressed in litres per square metre per hour (L/m2H) or gallons per square foot per day (GFD).

In fact, models of reverse osmosis membranes are generally named according to the characteristics of membrane components, either by size or product functions, such as BW and SW, BW: BrackishWater, and SW: SeaWater membrane components. If you want to know more about water treatment, you can follow us.

The water yield of industrial reverse osmosis RO films of different specifications is different. If the models are of the same specifications and different, then the water yield is different. For example, the water yield per hour of an 8-inch film of the same model is about twice as much as that of a 4-inch film. Therefore, 8-inch industrial reverse osmosis RO membrane is generally more cost-effective for projects with large water production requirements, but the actual selection should be based on water treatment standards.

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