What is the difference between 8040 RO membrane and 4040 RO membrane?
Reverse osmosis membrane (RO membrane) is a vital component in water treatment equipment and is widely used in seawater desalination, industrial pure water, food and beverage processing and other fields. 8040 RO membrane and 4040 RO membrane are two common specifications and models, which have significant differences and are suitable for different application scenarios. This article will explore the difference between these two membranes and their prices in detail.
What is reverse osmosis membrane?
Reverse osmosis membrane is a high-efficiency filtration membrane that can effectively remove dissolved salts, heavy metal ions, organic matter and bacteria in water. Its working principle is to apply external pressure to make water molecules pass through the membrane layer, while other dissolved substances are intercepted to achieve the purpose of purifying water quality. The performance and size of the reverse osmosis membrane play a decisive role in the efficiency of the entire water treatment system.
Specification difference between 8040 RO membrane and 4040 RO membrane
The naming method of 8040 and 4040 RO membranes is based on their size specifications. The "80" and "40" in 8040 and 4040 represent the length of the membrane, respectively, while the "4" in "40" represents the diameter of the membrane in inches.
1. Size and shape:
● 8040 reverse osmosis membrane: 40 inches (about 1016 mm) in length and 8 inches (about 203 mm) in diameter.
● 4040 reverse osmosis membrane: 40 inches in length and 4 inches (about 102 mm) in diameter.
From the size, it can be seen that the diameter of the 8040 reverse osmosis membrane is twice that of the 4040 membrane. Therefore, the 8040 membrane has a larger surface area, stronger filtration capacity, and a relatively large amount of water treatment.
2. Membrane area:
● 8040 reverse osmosis membrane: Due to its larger diameter, the surface area of the membrane is usually between 365-400 square feet.
● 4040 reverse osmosis membrane: Due to its smaller diameter, the surface area of the membrane is between 85-100 square feet.
Since the surface area of the membrane directly affects the water output, the 8040 RO membrane is usually used for industrial or commercial purposes with large water demand, while the 4040 RO membrane is more used in smaller-scale water treatment scenarios, such as small commercial applications or laboratory use.
3. Water output:
● 8040 RO membrane: Its daily water treatment volume can reach 2,000-10,000 gallons, depending on the type of membrane and the quality of the influent water.
● 4040 RO membrane: The daily water treatment volume is relatively low, generally between 600-2,400 gallons.
Therefore, the 8040 membrane is more suitable for application scenarios that require a large amount of water treatment, such as large industrial water treatment systems or municipal water treatment, while the 4040 membrane is suitable for occasions with smaller water demand.
4. Service life:
● 8040 RO membrane: Due to its large size and wide filtration area, it usually has a long service life, generally up to 3-5 years.
● 4040 RO membrane: The service life is usually 2-4 years, depending on the water quality and usage conditions.
Differences in application scenarios
Due to differences in size, processing capacity and design, 8040 RO membrane and 4040 RO membrane have significant differences in application scenarios.
1. Application scenarios of 8040 RO membrane:
● Large industrial water treatment systems, such as power plants, petrochemical enterprises and pharmaceutical industries.
● Municipal water treatment facilities for seawater desalination, wastewater treatment and drinking water purification.
● Large commercial water treatment systems, such as beverage manufacturing, food processing, wineries, etc.
2. Application scenarios of 4040 RO membrane:
● Small and medium-sized industrial water treatment, such as small factories, laboratories and research institutions.
● Small commercial applications, such as cafes, restaurants, hotels and other places that require purified water.
● Home water treatment systems, especially those with high water quality requirements.
What is the price of 8040 and 4040 RO membranes?
There are also differences in price between 8040 RO membrane and 4040 RO membrane, which is mainly determined by their size, material, manufacturing process and performance.
1. Price of 8040 RO membrane:
Due to its large area and strong processing capacity, the price of 8040 membrane is usually higher. In the market, the price of 8040 RO membrane ranges from US$500 to US$1500, and the specific price depends on the brand, model and performance. For example, the price of 8040 membrane of high-end brands is higher, while the price of some domestic or ordinary brands is relatively low.
2. Price of 4040 RO membrane:
In contrast, the price of 4040 RO membrane is more affordable, usually between US$200 and US$600. Due to its wide range of applications and fierce market competition, the price difference between different brands and models is also large.
How to choose a suitable RO membrane?
Choose the appropriate membrane model according to the water treatment needs of the specific application scenario. If large-scale water treatment is required, the 8040 membrane is a better choice; for small and medium-sized water treatment projects, the 4040 membrane is more economical and applicable. Secondly, different types of reverse osmosis membranes have different requirements for influent water. If the impurity content in the water is high, you may need to choose a membrane with stronger filtration capacity.
In addition, price is one of the important factors in choosing a reverse osmosis membrane. For projects with limited budgets, it may be more appropriate to choose a cost-effective 4040 membrane; for projects with higher requirements and sufficient budgets, the 8040 membrane provides stronger processing capacity. Finally, due to the large size of the 8040 membrane, its installation requires more space. Therefore, in places with limited installation conditions, the 4040 membrane may be more suitable.