
This special design makes feed collide with the disc bulge through the membrane surface forming turbulence which increases flow rate and self-cleaning function and long service life of the membrane. |
Features:
- High strength design, up to 160bar operation pressure
- Simple pre-filtration
- Open channel configuration enables low flow resistance and low concentration polarization, Minimize membrane scaling and fouling
- Easy to maintain
- High rejection and high recovery rates with low energy costs (up to 99.6%)
- Long membrane life
- Lower membrane replacement costs
- High quality product water
Application fields:
- Treatment & re-use of landfill leachate
- High concentration of industrial waste water
- Effluent & waste water treatment from API, formulation plant & combined effluent from pharmaceuticals industry
- Effluent treatment from textile industry and dyeing unit
- Picking & oily waste treatment in steel industry
- Metal recovery waste recycling
- Traditional spiral RO / NF concentrate treatment
- High COD/BOD waste water treatment (max. COD 20,000ppm)
A typical process diagram:

90bar High pressure membrane module specification:
Items | High pressure (90bar) |
Model | SP-DTRO5-8042 |
Membrane sheet | Composite Polyamide (RO5) |
Membrane cushion qty. (pc) | 209 |
Stable rejection** | 99.5% |
Min. Rejection (%) | 99.0% |
Membrane effective area (m2) | >9.4 |
Feed flux** (l/h) | 500-1200 |
Permeate flux range (l/h) | 400 |
Hydraulic disc material | ABS |
Vessel material | FRP |
Operation pressure (bar) | 90 |
Max. TMP (bar) | 9 |
Max. operation temperature (ºC) | 40 |
Chlorine tolerance (ppm) | <0.1 |
Recommended operation pH | 3-11 |
Chemical cleaning pH@40ºC | 2-12 |

Operation Pressure (bar) | 90 bar |
Total module length A (mm) | 1400 |
Vessel length B (mm) | 1150 |
Module diameter C (mm) | 220 |
Vessel to top of frame D (mm) | 98 |
Inlet to flange center distance E (mm) | 76 |
Outlet to flange center distance F (mm) | 56 |
Inlet & outlet connections diameter (mm) | 12 |
Permeate connection (mm) | 1 x G3/8"-90° elbow for 9mm hose |
DTRO / DTNF membrane module structure

Item | Name | Item | Name | Item | Name | Item | Name |
1 | Tie rod | 7 | End flange | 13 | O-ring 14-2 | 19 | Reinforced top flange |
2 | Thick nut | 8 | Screwing tie rod | 14 | O-ring 52-4 | 20 | Membrane vessel |
3 | Top flange | 9 | Tie rod gasket | 15 | O-ring 48-2 | 21 | Reinforced rod |
4 | Distance fitting | 10 | Thin nut | 16 | Membrane cushion | 22 | Reinforced end flange |
5 | Hydraulic disc | 11 | Inlet/Outlet connection | 17 | O-ring 39-3 | 23 | Reinforced nut |
6 | Lip seal | 12 | Permeate connector | 18 | Screwing tie rod |




Why us?
1. Cost is competitive and fast lead time.
2. Cross reference: Rochem DT module and PF module
3. Cross reference: Rotreat RCDT module, Deknomat module, PALL, Rochem, Nanostone membrane
4. We use American high quality membrane sheet.
FAQ
1, Q: Are you manufacturer?
A:Yes, definitely,our factory locate in Beijing,China.
2, Q:What's your main products ?
A: we manufactur filter membranes, RO, NF, UF, MF membrane, spiral wound/flat sheet membrane, tubular membrane, MBR, DTRO, STRO,E-coat UF membrane, anode cell etc.
3, Q: what's your main market?
A:There're about 94 countries we've been exported, mainly in USA, Korea, UK, France, Russia, Germany, India, Spain, Brazil etc.
4, Q:Can you supply free sample?
A:Yes, we can supply free samples which are in stock, and the freight charge should be on your side.
5, Q: What about the package?
A:The membrane elements are wrapped with plastic bubble paper, then carton box, safe wooden box outise, the breakage is less than 1%.
6, Q: Do you offer OEM?
A: Sure!