fine bubble disc diffuser FLOWSHEN RSD/RCD Series with EPDM membrane with high tensile strength producing tiny air bubbles of an average 1-3 mm RCD Series models with check valves to prevent water returning into the pipes and RSD Series models without check valves .
Disc Diffuser FLOWSHEN RSD/RCD Series Feature
FLOWSHEN RSD/RCD Series Applications


| RSD245 | RSD330 | RCD245 | RCD330 |
| 266 | 348 | 265 | 350 |
| No. | Description | Model | |||
| RSD245 | RSD330 | RCD245 | RCD330 | ||
| 1 | Retaining ring | *PP | *PP | *PP | *PP |
| 2 | Membrane | **EPDM | **EPDM | **EPDM | **EPDM |
| 3 | Check valve | ***N/A | ***N/A | **EPDM +*PP | **EPDM+ *PP |
| 4 | Disc | *PP | *PP | *PP | *PP |
| MODEL | Flow rate | Design flow | Pressure | Check valve | Range depth | Service area | Pores quantity | Bubble size | Max. Temp | Connector threaded | Weight |
| m3/hr | m3/hr | loss (Pa) | (m) | (m2) | (mm) | (kg) | |||||
| FLOWSHEN RSD245 | 1-7.2 | 2.0-6.0 | 2000-4800 | ***N/A | 1.5-7.0 | 0.5 | 6500 | 1-3 | 100 °C | 3/4 “NPT | 0.6 |
| FLOWSHEN RSD330 | 1-12 | 4.0-8.5 | 3800-6300 | 0.8 | 12500 | 0.85 | |||||
| FLOWSHEN RCD245 | 1-7.2 | 2.0-6.0 | 2800-5500 | Included | 0.5 | 6500 | 0.75 | ||||
| FLOWSHEN RCD330 | 1-12 | 4.0-8.5 | 4300-6800 | 0.8 | 12500 | 0.95 |