The AVK range consists of valves of traditional cast iron and valves made of composite materials, which combine strength with extremely light weight and increased venting efficiency. Top performance, minimum maintenance and high durability are the characteristics of all the different types of air valves in the range: • Automatic air valves • Kinetic air valves • Combination air valves The air valves made of fibreglass reinforced nylon feature essential benefits such as: • Non corrosive • Extremely low weight for easy handling • Large automatic orifices discharge large volumes of air under pressure • The valve design with a rolling seal mechanism allows the valve to open at a higher differential pressure than possible for traditional ball type air valves. Why use Air Valves? Trapped air pockets in the piping system cause many problems: - hastened corrosion - increased energy consumption and operation costs - failure or inaccuracies in flow metering - pressure loss or even complete flow stoppage - delays in the filling of mains - increased risk of water hammer Sudden movements of air pockets can result in a rapid change in flow velocity, leading to high pressure surges of a destructive nature. Further Information

• AVK Air Valves for Water Supply
• AVK Air Valves for Sewage Treatment