Designed to eciently extract the air trapped in medium size pipes, big filters, tanks and in any other places where the absence of air is required for a correct performance.
The valves are located at the outlet of pipes whose slope varies according to the hydraulic gradient, in areas where pipes are located above ground level, at the input of measuring instruments, in long pipes with uniform slope, on both sides of a subterranean crossing road, at the output of reducing valves, in diameter reductions, pumps and filtration systems.