Product Features Combines the features of both an air & vacuum valve and an air release valve. Triple function: Air & vacuum component discharges large volumes of air during filling of the system. Air & vacuum component admits large volumes of air during drainage and at water column separation. The air release component releases entrapped air in pressurized systems. Dynamic design allows for high velocity air discharge while preventing premature closure. Innovative rolling seal mechanism. Available in sizes: 15mm, 20mm, 25mm, and 50mm threaded male connections, BSPT. Application Range Working pressure range: 0.1-10 bar. Maximum operating temperature: 60°C. Maximum intermittent temperature: 90° C. For installation: At pump stations. Downstream and upstream of shut-off valves. After deep-well pumps. On long constant-sloped pipeline segments. At peaks along the pipeline and at peaks relative to hydraulic gradient. Additional protective shell for anti-vandalism/theft applications.
