Non-Return Damper for Fume Hood JH-SA022
Model:JH-SA022
Description:
The non-return damper refers to the valve that automatically opens and closes the valve
flap depending on the flow of gas itself to prevent the reverse flow of gas. The non-return
valve is an automatic valve, which is used to prevent gas backflow. Under the action of gas
pressure flowing in one direction, the valve flap opens; When the gas flows in the opposite
direction, the gas pressure and the self weight of the valve flap act on the valve seat to cut off
he flow.
