Rectangular Flow-Measuring Shut-Off Valve

The K-BBN rectangular flow-measuring shut-off valve is designed to measure airflow during operation of ERVN fans with manual-electric drives.

Special versions for ERVN fans:

• shut-off of the fan’s discharge duct when stopped or operating at reduced capacity;

• installation on the discharge flange.

The valve consists of a prismatic sheet steel housing and a horizontal-axis damper, which rotates under airflow pressure and indicates air volume on a scale. After fan operation stops, the damper returns to a horizontal position, isolating the fan from the ventilation system.

Installation: direction arrow indicates proper flow orientation, valve is mounted vertically.
Made of carbon steel with RAL 7016 powder coating.
Operating temperature range: –20° C to +40° C.