rotary damper
1)Material:carbon sheet
2)Manual or motor operation
3)Size customized

rotary damper

Features:

1. The purpose of this valve is to prevent air regorge when the blower stops work.

2. The device of the valve requires wind speed in the tube is not less than 8m/s.

3. The valve is mounted on the level, heavy bob is no need when vertical mount.

The mounting type is needed to be marked when ordering.