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ro membrane 4040 with lowest price
1.Model:LP21-4040
2.Reject(%):99.0
3.Average Permeate GPD(m3/d):2400(9.1)
4.Active Membrane Area ft2(m2):90(8.4)
LP21-4040 ro membrane 4040/ro 4040 membrane/ro membrane 4040 price
Specifications and Major Properties
Model |
Active Membrane Area ft2(m2) |
Average Permeated Flow GPD (m3/d) |
Stable Rejection Rate (%) |
Minimum Rejection Rate (%) |
LP21-8040 |
365(33.9) |
9600(36.3) |
99.5 |
99.3 |
LP22-8040 |
400(37.0) |
10500(39.7) |
99.5 |
99.3 |
LP21-4040 |
85(7.9) |
2400(9.1) |
99.5 |
99.3 |
Testing Conditions: Testing Pressure…………………………………………………225 psi (1.55Mpa)
Temperature of Testing Solution ……………………… 25 °C
Concentration of Testing Solution (NaCl)……………2000ppm
pH Value of Testing Solution ……………………………… 7.5
Recovery Rate of Single Membrane Element………15%
Operation limits and Conditions
Max. Working Pressure…………………………………………………… 600psi(4.14Mpa)
Max. Feedwater Flow…………………………………………………………75gpm (17 m3/h) (8040)
16gpm (3.6 m3/h) (4040)
Max. Feedwater Temperature…………………………………………… 45°C
Max. Feedwater SDI………………………………………………………… 5
Residual chlorine Concentration of Feedwater……………… <0.1ppm
pH Range of Feedwater during Continuous Operation… 3~10
pH Range of Feedwater during Chemical Cleaning……… 2~12
Max. Pressure Drop of Single Membrane Element………… 15psi(0.1Mpa)
Dimensions of Membrane Element
All dimensions are shown in: millimeter (inch)
1.what is Reverse osmosis (RO)?
In the normal osmosis process, the solvent naturally moves from an area of low solute concentration (high water potential), through a membrane, to an area of high solute concentration (low water potential). The driving force for the movement of the solvent is the reduction in the free energy of the system when the difference in solvent concentration on either side of a membrane is reduced, generating osmotic pressure due to the solvent moving into the more concentrated solution. Applying an external pressure to reverse the natural flow of pure solvent, thus, is reverse osmosis. The process is similar to other membrane technology applications. However, key differences are found between reverse osmosis and filtration. The predominant removal mechanism in membrane filtration is straining, or size exclusion, so the process can theoretically achieve perfect efficiency regardless of parameters such as the solution's pressure and concentration. Reverse osmosis also involves diffusion, making the process dependent on pressure, flow rate, and other conditions.[1] Reverse osmosis is most commonly known for its use in drinking water purification from seawater, removing the salt and other effluent materials from the water molecules.
2.How does a Reverse Osmosis Membrane work?
Reverse Osmosis is a process in which dissolved inorganic solids (such as salts) are removed from a solution (such as water). This is accomplished by household water pressure pushing the tap water through a semi permeable membrane. The membrane (which is about as thick as cellophane) allows only the water to pass through, not the impurities or contaminates. These impurities and contaminates are flushed down the drain.
3.Advantages of Reverse Osmosis Membrane
- Improves taste, odor and appearance.
- Highly effective purification process. Will remove the pollutants listed below and more!
- Consumes no energy
- Very convenient
- Flushes away pollutants, does not collect them
- Easy to keep clean
- Low production cost - gives you water of a guaranteed quality for pennies per gallon
ro membrane 4040/ro 4040 membrane/ro membrane 4040 price
1, Q:Are you manufacturer ?
A:Yes, we are the manufacturer with continuous and improved R&D, production, sales and service supply.
2, Q:What’s your main products ?
A: Our products is water softeners, control valves, RO water purifiers, housing filters ,all kinds of filter components and so on
3,Q:Can I get your price list ?
A: Yes, sure. In order to send you our available offered price, please choose the products and let us know the product model and requirement in detail.
4,Q: What’s your after-sales policy( The terms of guarantee) ?
A: Different products, different guarantee policy.
The time of quality guarantee: 1-3 year
5, Q: What’s your payment policy?
A: Samples(Less than 4000USD): 100% in advance via T/T or West Union
Formal order: 30% payment in advance via T/T as deposit payment and balance payment will be done against the Copy of B/L
L/C payment is also available
6,Q: Can I get your products with our logo and design ?
A: Most of products are OEM or ODM with your logo and brand not including the control valves( Keman brand valve)
If you have any questions about our products ( water softener, control valves, housing filters, RO system) or our service, please feel free to contact our 7*24H on line service center or send us inquiries,we will give you the fastest reply.
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