Fox 3F AS Anti-Slam Air Release Valve

The CSA Mod. FOX 3F-AS, is a full-bore high-quality single chamber triple function combination air valve with a built-in anti-water hammer non-slam surge prevention system.  The air valve allows the release of air pockets from pressuried pipelines, and admits large volumes of air in the event of pipe draining/burst, to prevent vacuum and negative pressure conditions. The anti-shock mechanism, with adjustable nozzles, will control the air outflow rate, thus avoiding fast approaches of water column with potential sudden closures of the mobile block and the associated risk of water hammer.

Entirely made in ductile cast iron, with air release system and seat in stainless steel, FOX 3F-AS stands out for long-lasting performance and reliability.