Air Valves & Anti-Surge Tanks

The air valves are a very important element. Its mission is to manage air, it is necessary to discharge air in the pipeline filling process and introduce air into the case of draining or negative pressure for avoiding pipe collapse. It’s also important to release the air pockets that can be produced under pressure in working conditions. The unwanted presence of air involves multiple problems such as hydraulic transients (which can cause pipe burst), head losses and reduced flow, energy consumption, corrosion. The air valves are automatic devices depending on the function they can be simple function (air release valves), two function valves (air/vacuum valves) that discharge air in the filling process and allow the entrance of air in the draining or three function air valves (combined air valves) that in addition to the air/vacuum valves include the air release function. Other special functions as the rapid filling prevention or anti-slam are also important for avoid water hammer.