Hunan Keensen Technology Co., Ltd.
Leading RO/NF Membranes Manufacturer.
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Ultra Lower Pressure Commercial Membrane 4021 Membrane For Water Treatment
| Material: | Aromatic Polyamide |
| Working Pressure: | 150psi |
| Suitable Raw Water: | Surface water, groundwater, municipal water |
| Ph Range: | 2-11 |
| Pressure Rating: | 150psi |
| Membrane Area: | 36 Square Feet |
| Type: | Ultra lower pressure commercial membrane |
| Permeate Flow Rate: | 950GPD |
| Certifications: | NSF/ANSI 61, NSF/ANSI 58, ISO 9001:2015 |
| Operating Temperature: | 0-45℃ |
| Size: | 4021 |
| Salt Rejection: | 99.2 |
Ultra Lower Pressure Commercial Membrane 4021 Membrane For Water Treatment
Description:
Aromatic polyamide composite series membrane elements is developed for for desalination treatment of surface water, groundwater, municipal water, etc. within TDS 2000mg/L,and can be widely used in small systems such as automatic water vending machines in
residential areas or parks, direct drinking water equipment in office buildings, and pure water in medical
laboratories.
Applications:.
● Surface water, groundwater, municipal water etc.
● Feed TDS above 2000mg/L.
Specifications:
| Model | Active Area ft2(m2) | Feed Spacer Thickness(mil) | Permeate Flow Rate GPD(m3/D) | Stabilized Salt Rejection (%) |
| ULP-4021 | 36(3.3) | 28 | 950(3.6) | 99.2 |
Standard Test Conditions:
| Solution | Temperature (℃) | pH | Operating Pressure psi(MPa) | Recovery (%) |
| 1500mg/L NaCl | 25 | 7.5-8.0 | 150(1.03) | 8 |
Benefits:
● High Rejection Rate and High Concentration Rate.
● Stability and Durability.
Element Dimensions and Operating Limits:
| Model | Length | Diameter | Permeate Tube inner Diameter | Permeate Tube Extension Length | ||||
| inch | mm | inch | mm | inch | mm | inch | mm | |
| 4021 | 21 | 553.4 | 3.9 | 99 | 0.75 | 19.0 | 1.04 | 26.5 |
| 2540 | 40 | 1016 | 2.4 | 61 | 0.75 | 19.0 | 1.125 | 28.6 |
| 2521 | 21 | 553.4 | 2.4 | 61 | 0.75 | 19.0 | 1.125 | 28.6 |
| Maximum Operating Pressure | 600psi(4.14MPa) |
| Operating Temperature Range | 0-45℃ |
| Maximum Feed Silt Density Index (SDI15) | 5.0 |
| Free Chlorine Tolerance | 0.1mg/L |
| pH Range,Continuous Operation | 3-10 |
| pH Range,Short-Term Cleaning | 1-13 |
| Maximum Element Pressure Drop | 15psi(0.1MPa) |
