Shuiyi Resalt® Series Industrial Pure Water Reverse Osmosis Membrane Products
Shuiyi Resalt® series industrial pure water reverse osmosis membrane products include RBW, RBW-HR, and RBW-LE models, effectively removing dissolved inorganic salts, organics, and silica. The RBW basic reverse osmosis membrane maintains stable desalination rates and water production, suitable for most industrial water supply scenarios. The RBW-HR reverse osmosis membrane, with a very high desalination rate, is suited for scenarios requiring high recovery rates and superior water quality. The RBW-LE reverse osmosis membrane features low energy consumption and high desalination, suitable for commercial applications and secondary industrial pure water production with inlet water salinity ≤500mg/L.
Description
- Stable high desalination rate
Resistant to chemical cleaning and short-term chlorine shocks, the highly cross-linked separation layer maintains a stable desalination rate, with an average rate of 99.7%. - High water production flux
Option for a larger area 440 element, stable water production up to 44m³/d, meeting low-temperature operational water production needs.
Data Sheet
| Model Item | Parameter | |||||
| RBW-8040 | RBW-8040-440 | RBW-4040 | RBW-HR8040 | RBW-LE8040 | ||
| Membrane element parameters⁽¹⁾ | Effective membrane area | 37m² | 41m² | 7.6m² | 37m² | 37m² |
| Membrane material | Aromatic polyamide | |||||
| Structure | Spiral-wound | |||||
| Inlet mesh thickness | 28 mil | |||||
| Dry membrane weight | 13kg | 15kg | 4kg | 13kg | ||
| Wet membrane weight | 15kg | 17kg | 4.5kg | 15kg | ||
| Length | 1016mm | 1016mm | 1016mm | |||
| Diameter | 201mm | 99mm | 201mm | |||
| Permeate collector installation diameter | 29mm | 19mm | 29mm | |||
| Connection length | 27mm | |||||
| Standard test solution | 2000mg/L NaCl | 1500mg/L NaCl | ||||
| Operating pressure | 1.55MPa | 1.03MPa | ||||
| Test temperature | 25℃ | |||||
| Recovery rate | 15% | |||||
| pH | 7~8 | |||||
| Water production rate⁽²⁾ | 41m³/d | 44m³/d | 8.1m³/d | 41m³/d | 41m³/d | |
| Standard rejection rate | 99.6% | 99.7% | 99.5% | |||
| Membrane operational parameters | Maximum operating pressure | 4.1MPa/600 psi | ||||
| Maximum inlet water flow | 17m³/h | 17m3/h | 3.6m3/h | 17m3/h | 17m³/h | |
| Inlet water temperature range | 5~40℃ | |||||
| Inlet water pH range | 2~11 | |||||
| Cleaning pH range⁽³⁾ | 1~13 | |||||
| Maximum inlet water turbidity | 1.0NTU | |||||
| Maximum inlet water SDI15 | 5.0 | |||||
| Inlet water residual chlorine | <0.1mg/L | |||||
| Maximum pressure drop per element⁽⁴⁾ | 0.1MPa | |||||
Note:
(1) The parameters listed are measured after 30 minutes of stable system operation;
(2) Water production rate has a deviation range of ±15%;
(3) Chemical cleaning recommended at temperatures ≤30°C, above which cleaning solution pH shall not exceed 2.0-12.0;
(4) In multi-element housings, the maximum pressure drop from inlet to outlet should be controlled within 0.25MPa, not exceeding 0.3MPa in extreme cases;
(5) RBW-HR and RBW-LE may also use the 440 high-flow and 4040 commercial membrane elements.
The data presented herein have been tested and are reliable, but variability may occur due to different testing methods and operating conditions. Therefore, usersshould combine practical application processes and thoroughly understand the products of Ningbo Shuiyi MembraneTechnology Development Co., Ltd
Applications
Due to its high desalination rate, high water production, and durable performance, Shuiyi Resalt® series industrial pure water reverse osmosis membrane products are widely used in industrial water fields like power, coal chemical, and light industries.
