![](/proxy_file/doc/immagini/doc_96_img_1601890523.jpg)
CSA air valves SUB for safety of water distribution systems
CSA SUB air valves, with threaded outlet, avoid the entrance of contaminants in the pipeline. ![](/proxy_file/doc/immagini/doc_95_img_1596526249.jpg)
Air valves and the risk of negative pressure in pipelines
Why properly sized air valves are necessary to avoid negative pressures. ![](/proxy_file/doc/immagini/doc_91_img_1579620348.jpg)
The importance of surge preventer air valves
The technologies AS and RFP of CSA anti-water hammer air valves. ![](/proxy_file/doc/immagini/doc_84_img_1564581394.jpg)
Prevention of cavitation in control valves
The CSA divices to prevent cavitation and for stability with low flow.