DTRO-8042-90
Disc-tube Reverse Osmosis Membrane
Compared with traditional spiral reverse osmosis membrane, the channel width between DTRO membrane components is larger, generally between 2-6mm, which reduces the probability of membrane pores being blocked by pollutants and significantly improves the anti-pollution ability;
The water flow inside the DTRO membrane component forms a strong turbulent state, which improves the mixing degree, prevents the deposition of pollutants on the membrane surface, and improves the cleaning efficiency and service life of the membrane;
| Model | Membrane material | Minimum desalination rate % | Average water production (gpd) | Effective membrane area (ft²) | Design pressure psi(MPa) |
| DTRO8042-90 | High-density reverse osmosis membrane | 99 | 2,100 | 104 | 1,305psi(9MPa) |
| Test conditions: 32,000ppm NaCl aqueous solution, Pressure 800psi (5.5MPa), Temperature 25℃, pH 7.5, Recovery rate 8%. | |||||
---Description
The flow rate of a single membrane element may be different, but the range of variation will not exceed +15%;
The stable desalination rate generally needs to be tested after 24-48 hours of continuous operation, depending on the inlet water quality and operating conditions.
Maximum inlet temperature ································ 40℃
Maximum inlet flow ································ 0.8-1.2m³/h
Continuous operation pH rangeb ······················ 2-11
Maximum pressure drop of a single membrane ···························· 100psi(0.7MPa)
Maximum inlet water SDI15 ····························· 20
Free chlorine tolerance a ······························ <0.1ppm
Short-term cleaning pH range ························· 1-12
a. Under certain conditions, inlet water containing free chlorine and other oxidants can cause serious membrane damage, which is not covered by the product warranty terms due to oxidation damage;
b. When pH>10, the continuous operating temperature does not exceed 35℃.

| Model | Membrane assembly tie rod length A | Membrane shell length B | Inlet/concentrate outlet length C | Membrane assembly outer diameter D | Water production interface |
| mm | mm | mm | mm | mm | |
| DTRO8042-90 | 1,400 | 1,200 | Φ8 | Φ214 | 2*Hose quick connect, interface Φ11.6 |
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