Air vent valve for use in heating systems. Automatically discharges air. The second upper bleed point allows manual release of air thus reducing commissioning time. Installed vertically, the caps are adjusted before filling the system.

Adjusted with special key, (code 00408230 below) or screwdriver. Once partially opened drain off position can be oriented. Can also be used in topway manifold as manual air vent.

Allows easy pipe connection due to 45° angle with 360° orientation.