DVD Air Valves are used to prevent pipeline bursts, as a result of air intake/discharge failure in pipelines.

These valves consist of a body which holds floats that are positioned at a predetermined height. Floats are guided vertically and moves when there is a change in the elevation of water.

As a result of the aero-kinetic design of the body & float; the float remains completely stable under air intake/discharge, preventing premature closing of the valve.

Only when there is a rise in the water level, float rises and closes the valve; and when the water level drops, the float drops, enabling the intake of large volumes of air to the system.

Because of its unique design, DVD Air Valves have intake/discharge capacities greater than its alikes, suppressing competition.