FNC, with operations in North and South America, has released its 1000 series PV “breather valves” featuring a new shape for fluid dynamic improvements, pipeaway connection on pressure and process side, and pallet guide outside the process. PV relief valves are commonly referred to as a “breather valve” because of their primary release function.
PV relief valves are safety designed to protect tanks against rupturing or imploding. As long as the tank pressure remains within the valve pressure and vacuum setting the pallets remains in contact with the seat ring and no venting or breathing take place. If direct atmosphere discharge or nitrogen is used on vacuum inlet, a flanged connection is available.