Non Return Damper

Feature:

· The damper is installed in ventilating or air conditioning pipeline, so as to prevent gas backflow during stalling   of fan equipment.

· The damper  can automatically open and closed according to the air
pressure in the air duct.

Materials

· Made by  zinc plated corrugate iron or stainless steel

· Used either plastic valve or screw sheel

· Easy to control the air supply and
return