AVK UNDERGROUND AIR VALVE, PN10

Features

• Corrosion resistant and light-weight materials with external box and drainage assembly/connections of polypropylene and other main parts of stainless steel
• The system can be back flushed on site
• When maintenance is needed the pressure is released by means of the ball valve, the knife gate shut-off valve is closed by means of the T-key, and the complete assembly is taken out for service or maintenance
• Easy usage with quick connectors on both the inlet and outlet flushing positions
• Efficient drainage system with a special one-way valve that drains the water from the valve box and does not admit water
• Built-in safety, as it is not possible to extract the air valve unless the shut-off valve is closed and the internal pressure is released
• Air valve orifice sizes: Automatic 12 mm2, kinetic 804 mm2 (Air valve series 701/75)
• The large orifice in the automatic valve releases large volumes of air when the line is under pressure. The spring between the stem and upper float compensates for slight pressure changes
• The float system of polycarbonate and stainless steel ensures high corrosion resistance
• The conical body with funnel-shaped lower body allows maximum air volume within minimum valve length and prevents accumulation of deposits at the bottom
• An exhaust tube can be mounted in the threaded opening on the top of the valve
• With connection flange or 3” BSP thread
• Working pressure range 0.05 - 10 bar