Product Details
The spacer tube membrane module is designed for superior fluid dynamics in the most difficult applications. We use special open type feed spacers to minimize contact with the membrane surface, the ST module enables a high operation pressure but a low pressure drop across the vessel with a dramatically reduced fouling material between the spacer and membrane sheet.
RisingSun Membrane produces Spacer Tube Nanofiltration Membrane (STNF) for different High TSS Water.
STNF module including below items:
STNF membrane
High pressure vessel
SUS center link
Inlet and outlet pipe and accessories
RisingSun Membrane Spacer Tube Module
Comparison of Spacer Tube Membrane Module and Conventional Spiral NF membrane
Identical |
Difference |
High membrane area |
SUS center link with high strength and stability |
Integrated design |
Uniform internal water distribution structure |
Cross flow filtration |
Reduced impact of the membrane module flow, higher cross-flow |
|
Open feed channel |
RisingSun Membrane Spacer Tube Module System
STNF Specifications
Model |
SG-STNF-8035 |
Membrane type |
NF |
Membrane materia |
Composite Polyamide |
Membrane effective area (m2) |
25 |
Element configuration * |
Spiral、fierglass、brine seal |
Feed flux range (m3/h) |
5.5-12 |
Recommended feed flux (m3/h) |
10 |
Permeate flux range (m3/d) |
4.2-21 |
Stable permeate flux ** (m3/d) |
9.5 |
Stable salt rejection **(%) |
97.6 |
Min. salt rejection (%) |
97 |
Feed spacer |
Special open channel |
Max. TMP (bar) |
0.7 |
Max. operation pressure (bar) |
75 |
Max. operation temperature (℃) |
40 |
Feed (SDI) |
≤ 6.5 |
pH (continuous) |
3-11 |
pH (cleaning) |
2-10.5 |
Chlorine tolerance (ppm) |
≤ 0.1 |
* Salt seal installed on the end of the flow, low pressure side / permeate side.
** Stable flux, salt rejection based on the following test conditions: 30,000 mg/l MgSO4 , pressure 45bar,recycle rate 8%,temperature 20℃, pH=8. There will be a minor difference of permeate due to the feed quality.
Model |
SG-STNF-8035 |
Element total length (A) |
890mm |
Element diameter (B) |
200mm |
Center tube outer diameter (C) |
60mm |
Membrane body length (D) |
838mm |
Benefits:
1. Spacer tube nanofilter is high strength design, up to 80 bar operating pressure.
2. Open feed spacer with low flow resistance and concentration polarization.
3. Spiral wound structure with more membrane area.
4. Membrane is long using life.
5. Competitive price and fast delivery.
6. Cross replacements: Nanostone.
Welcome to purchase the high quality, effective and competitive price spacer tube nf membrane (stnf) for spiral ro/nf concentrates in stock from our factory. RisingSun Membrane is one of the certified such manufacturers and suppliers in China. Both the free sample and the customized service are available.
http://www.risingsunmembranes.com/