Product Description
4021 RO membrane is the commercial type use with size 4"X21" 950GPD flux RO membrane, we have four types different water condition & pressure use, there are Brackish water, Low-energy saving, Ultra-low pressure and sea water use. (Sea water use 4021 membranes will have simple page to introduce).
Advantages
- BW, LE, XLP, SW full of series under stable and perfect quality
- More than 10 years' experience
- Longer cycle life with advanced membrane sheet technology
- Flexible order acceptable, with super good service, and one-stop order tracking
- OEM & ODM is available
Applications
Applications of 4021 RO membrane in general include desalination, wastewater treatment, producing purified drinking water, industrial processes, especially the residential and commercial water systems include hospital ultra-pure water requests.
The 4021 RO membrane, characterized by its 4-inch diameter and 21-inch length, is a compact reverse osmosis membrane designed for applications where space and moderate capacity are key considerations, below are its primary applications:
Residential Water Purification
Under-Sink Systems: Provides households with high quality drinking water by removing contaminants like heavy metals, nitrates, and dissolved solids.
Point-of-Use Units: Ideal for kitchens or small apartments due to its compact size.
Commercial and light industrial use
Small-Scale Businesses: Used in cafes, restaurants, and hotels for purified water in cooking, beverages, and ice machines.
Dental Clinics / Medical offices: Ensures sterile water for procedures and equipments.
Hot Tags: 4021 ro membrane, China 4021 ro membrane manufacturers, suppliers, factory, 2521 ro membrane, TW30 2521, 2540 series ro membrane, 2540 Membrane, bw 2540 ro brackish water membrane, 4021 RO Membrane
|
Puri-guard® Element |
Permeate Flow GPD (m3/d) |
Testing Pressure |
Salt Rejection (%) |
Tested condition |
|
|
psi/MPa |
NaCl |
||||
|
BW-4021 |
950 (3.61) |
225/1.55 |
99.6-99.7 |
2000ppm |
|
|
LE-4021 |
950 (3.61) |
150/1.05 |
99.5 |
1000ppm |
|
|
XLP-4021 |
950 (3.61) |
100/0.69 |
99.2 |
500ppm |
|
1. Permeate flow and salt (NaCl) rejection based on the standard test conditions. 77°F (25°C), pH 7.5, 8% ± 1.0 recovery and the specified applied pressure.
2. Minimum salt rejection: 1% less of Salt rejection marked.
3. Single membrane element production flow may vary ±15%.
Operating limit
|
Diaphragm type |
Polyamide Composite Membrane |
|
Maximum operating temperature |
113℉ (45℃) |
|
Maximum operating pressure |
150 psi (10 bar) |
|
pH range, continuous operation |
3-10 a |
|
Maximum Influent SDI |
5 |
|
Free chlorine tolerance |
<0.1 ppm b |
a. When pH > 10, the maximum allowable temperature for continuous operation is 95℉ (35℃).
b. Under certain conditions, the presence of free chlorine and other oxidants will lead to premature failure of membranes. Therefore, it is recommended that the membrane be pretreated to remove residual free chlorine before water comes into contact with membranes.
|
Puri-guard® Element |
A (±2.0mm) |
B (±1.0mm) |
C1 (±1.0mm) |
C2 (±1.0mm) |
D (±0.1mm) |
|
(mm) |
(mm) |
(mm) |
(mm) |
(mm) |
|
|
4021 |
533 |
100 |
26.7 |
26.7 |
19.1 |
