Product Description
The Puri-guard® TW-4021, also known as the XLP-4021, is not part of the Dopunt TW series. Our TW is used in tap water with extremely low pressure to save energy and achieve higher rejection and higher flow. Typically, we sell our XLP-4021 membrane to Southeast Asia and Europe.
For commercial drinking water systems, reverse osmosis membrane components are the most dependable water filtration technique available. These components can provide reliable performance that equipment providers, water treatment dealers, and residential consumers may depend on thanks to advanced membrane technology and automated manufacture. For ease of handling and extended shelf life, our reverse osmosis membranes are sent dry.
Products advantages
- Energy saving with 100psi pressure use
- Can use tape shell with lower cost
- Longer lifetime and good performance with 99.2 rejection
- Dry or wet type are flexible
- OEM & ODM is available
Products Features
- Provides stable, high rejection of contaminates even with high TDS water sources.
- Advanced membrane technology with innovative thin layer composite membrane design.
- More consistent performance with less fouling requiring less frequent cleaning and change outs.
- 100% dry-stored membrane maximizing shelf life.
Products Application
- automatic water dispenser in residential area and school
- direct drinking equipment in office
- pure water machine in medical laboratory
- small-sized desalination device etc.
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Products parameters
|
Puri-guard® Element |
Permeate Flow GPD (m3/d) |
Testing Pressure |
Salt Rejection (%) |
Tested condition |
|
|
psi/MPa |
NaCl |
||||
|
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 |
