Control and measuring device a-collection ARMS 630 [8967027]

Measuring and adjusting device for circular ducts for precise and fast air volume control.
The air flow is obtained by measuring the pressure difference at the device's fixed measuring joint and reading the measurement curve. The control section can be opened completely, no cleaning hatch is required.
Made of hot-dip galvanized steel sheet.

According to Part E7 of the Finnish Building Regulations, the spread of smoke gases generated in the initial stages of a fire can be limited by using a damper with a maximum permitted room-specific airflow of 42 dm3/s at a pressure difference of 100 Pa. ARMS-100 and ARMS-125 dampers set to setting position 5 or with a smaller throttle opening can therefore be used as smoke limiters.