NEW IVL PRODUCT: IVL Flow-Control 80mm R Triple Function Air Valves

NEW PRODUCT: The Air Valve that will give you 100% of your designed capacity How many mains around the world are working to half their designed capacity, due to air pockets and accumulation of air bubbles. This is costing the utility a considerable amount of money and the installations are causing many issues to the water and waste water distribution network. IVL Flow-Controls 80mm R Triple Function Potable Water and Waste Water Air Valves are designed to make sure the main is working to 100% of its designed capacity. They are also designed to stop any contamination to the potable water system, through the stainless steel filter construction which stops insects and flies from entering the main. This design will also give an increase in air flow when charging and discharging the main. This air valve will ensure the proper operation of the pipeline network allowing the release of the air pockets during working conditions, the evacuation and the entrance of large volumes of air during filling and draining operations. Working conditions Potable water 70°C/ 158°F Max; Maximum pressure 40 bar; Minimum pressure 0.2 bar. Construction and advantages Body in ductile cast iron provided with internal Ribs for consistent and accurate assembly guiding, NP40 Supplied with fixed or mobile flanges drilled according to ISO standard (other drillings on request) PN 10/16/25/40. Drainage valve for chamber control and draining. Mobile block group formed by a full polypropylene cylindrical float and an upper disk in polypropylene. Nozzle and gasket holder wear resistant thanks to gasket compression control. Maintenance can be easily performed from the top without removing the air valve from the pipe. Cap in ductile cast iron. Operating principle 1) Discharge of large volumes of air During pipe filling it is necessary to discharge as much air as water flows in. 2) Entrance of large volumes of air During pipeline draining or bursting phases it is necessary to bring in as much air as the quantity of out-flowing water to avoid vacuum conditions. 3) Air release during working conditions During operation, an air pocket is accumulated in the upper part of the valve, little by little it is compressed and its pressure arrives to water pressure, its volume increases pushing water downwards. Following Archimedes’ the float, no longer sustained by water thrust, will drop freeing the nozzle hole helping the release of the air pocket, while the upper disk closes the main orifice due to internal pressure.

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