Disc Valve type Diffuser

EPV-TG is a circular exhaust air valve constructed in three sections, a convex inner cone, an outer valve seat having a foam gasket and a mounting ring. It is suitable for installation either in a duct, wall or ceiling. The 50mm mounting ring is provided for fixing into a duct or structural opening using screws (by others). Once the mounting ring is fixed into position, the valve seat should be rotated to engage the cross bar onto the flange grooves in the mounting ring. This retains the valve seat onto the mounting ring and compresses the foam gasket to create an airtight seal. The central bolt on the inner cone is located into the cross bar and turned clockwise to the desired position. Regulation of the airflow is carried out by simply rotating the inner cone clockwise or anti-clockwise until the required air volume is obtained.

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