* 0-280m3/h@0.0.35bar * Operating Pressure 0.5Bars - 6bars , BP 10 bars * Combination Air Valve - Dual Function as Air & Vacuum Release Valve * 1.5" Air valve is applied for irrigation system or networks of water supply. It evacuates air during pipeline filling. With its advanced aerodynamic design and kinetic orifice, this valve can provide excellent protection against vacuum formation. * Main Irrigation Networks - Air relief and vacuum prevention downstream of pumps, along supply lines and at elevations in main irrigation networks. Irrigation Control Heads - Air relief and vacuum prevention at filtration and fertilization stations. * Irrigation Pipeline System - Air relief, Prevention of pipe damage by air releasing which take place inside piping system.