Volume flow control
| Size | ΦD(mm) | Weight(kg） |
| 80 | 79 | 0.5 |
| 100 | 99 | 0.6 |
| 125 | 124 | 0.7 |
| 160 | 159 | 0.8 |
| 200 | 199 | 1.0 |
| 250 | 249 | 1.3 |
Feature For the control of flow rates in constant volume systems For low velocity systems Mechanical system-powered, without external power supply Suitable for supply or extract air Volume flow range maximum 10:1 Flow rate adjustment using pointer on external scale The damper blade mechanisms maintenance free Operation temperature range 10℃ to 50℃ Selection according to nominal size of the duct system low rate adjustment without special tools Differential pressure range 30 to 500 Pa |
