Double Chamber - Double Orifice Triple Function Air Valves (AVDC)

The material of sealing rubber made of EPDM or NBR. The bolts made of galvanized steel or stainless steel (A2). Internal material parts are made of stainless steel. The design is reliable with high capacity and also small dimensions. This air valve can be produced with internal shut off valve or without it, according to customer order. In case of using air valve without internal shut off system it is recommended to install an isolating valve under air valve. Advantages: • Reliable design • Equipped with shut-off valve for services during operation • Float made of stainless steel • Screws and nuts of corrosion resistant steel Application: These valves are designed for entry and exit of Air in pipelines (Double chamber) and installation is by flanges. Air valves (Double chamber) can be used for potable water, row water, filling and discharging pipelines and also for air evacuating in startup the pipeline. The pressure can be between 1 up to 25 bars and temperature up to 70°C. These valves are usually installed at the peak of pipelines and will be installed before or after of other valves. Corrosion protection: Electrostatic epoxy powder coating with min. 250 micron thickness. Size: DN 100 - 200 mm Pressure: PN 10 - 40 bars Flange: drilling according to DIN EN 1092-2 (DIN 2501)