Price range: £84.78 through £240.56
The Systemair RVK fan series is designed for installation in ducts.The fans have backward-curved blades and external rotor motors. The FK mounting clamp facilitates easy installation and removal, and prevents the transfer of vibration to the duct. The fans can be speed-controlled via a step-less thyristor or a 5-step transformer.
The Systemair RVK In-line Duct fans come in a variety of sizes and offer a range of air flow rates – see below for specs –
| RVK Fan Size | Air Flow (Max) | Wattage |
| 4″ (100mm) A1 | 184m3/hr | 29.1w |
| 5″ (125mm) A1 | 220m3/hr | 29.2w |
| 6″ (150mm) A1 | 428m3/hr | 60w |
| 6″ (150mm) L1 | 720m3/hr | 109w |
| 8″ (200mm) A1 | 796m3/hr | 104w |
| 8″ (200mm) L1 | 1008m3/hr | 153w |
| 10″ (250mm) A1 | 860m3/hr | 109w |
| 10″ (250mm) L1 | 1080m3/hr | 159w |
| 12″ (300mm) A1 | 1360m3/hr | 176w |
| 12″ (300mm) L1 | 1700m3/hr | 198w |
