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Sapstone 98% rejection domestic 80GPD RO membrane 13 layers




Product advantage
1. SLE Series Product Performance Stability.
2. SLE Series is dry membrane elements, so it is easy to transport and storage time extend.
3. SLE Series be used for Rural and Urban tap-water or low salinity water due to it’s High Stable rejection and low pressure Advantage.
RO Membrane Performance
Model | Performace | |||
Stable Rejection /% | Average permeate flux /gpd(m3/d) | Recovery /% | ||
(Sapstone) Low Pressure domestic/commercial membrane element | SLE-1810-50 | 97.0 | 50(0.20) | 20 |
SLE-1812-50 | 97.0 | 50(0.20) | ||
SLE-1812-75 | 96.5 | 75(0.28) | ||
SLE-2012-100 | 96.0 | 100(0.40) | ||
Testing Conditions: |
| |||
Testing Concentration(NaCl) | 250 mg/L | |||
Testing Pressure | 60 psi(0.4 MPa) | |||
Temperature of Testing Solution | 25℃ | |||
pH value of testing solution | 7.5 | |||
Operation Limits and Conditions: | ||||
Membrane Type | Polyamide Thin-film Composite | |||
Max. Working Pressure | 300 psi(2.07 MPa) | |||
Max. Inflow Temperature | 45℃ | |||
Max. Inflow SDI15 | 5 | |||
Residual Chlorine Concentration of Feed Water | <0.1 mg/L | |||
PH Range of Feed Water During Continuous Operation | 3~10 | |||
PH Range of Feed Water During Chemical Cleaning | 2~12 | |||
Max. Pressure Drop of Single Membrane Element | 10 psi(0.07 MPa) | |||
Measurement of membrane element
Model | Size/mm(inch) | ||||
A | B | C | D | E | |
1810 | 256.0(10.1) | 44.5(1.75) | 17.0(0.67) | 25.0(0.98) | 15.0(0.59) |
1812 | 298.0(11.7) | 44.5(1.75) | 17.0(0.67) | 21.0(0.83) | 21.0(0.83) |
2012 | 298.0(11.7) | 48.2(1.9) | 17.0(0.67) | 21.0(0.83) | 21.0(0.83) |



Tianjin Kung ta new material technology Co.ltd is leading manufacturer of ro membrane with more than 8 years experience in China. Sapstone is our own brand.
We have developed full automatic rolling machine, so our stable annual output is 5 million pieces. The Models from 50/75/80/100GPD to 200/300/400/600GPD upto 4021/4040/8040.
Our main advantage:
1. ISO9001:2015 standard
2. Long service life
3. Cost effective
4. Stable supply
5. Customized Service Producing your own brand ro membrane.
We will go to 2018 ASIAWATER Malaysia, booth No: Hall, 6. P631. welcome to visit us.
With advance production equipment of ro membrane and sheet, we will provide strictly quality control and competitive products.


1. Adanvced Automatic production line.
2. Stable and large-scale produce capacity.
3. Strong R&D Team.
4. customize service provided as customer's required.
Our products use the most advanced technology, perfect technology, filtration precision is more accurate, membrane element removable replacement, long service life, high cost performance. And cartridge is the food grade material , pollution-free, non-toxic health!

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