Double Effect ECO Air Release Valves

 

They are used for releasing small quantities of air with pressure. This air is generated mainly by important and punctual pressure losses, as could happen in a pressure reducer. The air removing is made through a small hole in the top and has been designed to avoid fillings and leakage.

 

They combine the functions of simple effect and double effect air release valves. They have two holes to air evacuation and intake. As the water is filling the pipes, it pushes the air, which is evacuated to the atmosphere through the big hole in the valve. The small hole of an automatic effect is open during this process. When the system is on pressure, the small hole automatically opens when it detects small air bags created by the fluid turbulences.