The 075 ASVF Irrigation Valve Series comes with an atmospheric backflow preventer and DVF valve combined. Rain Bird manufactures only the highest quality Anti-Siphon valves. Use Anti-Siphon valves in locations where the use of a pressure vacuum breaker (PVB) or double-check valve is not required by city codes.
Check your local city codes to determine what type of valves are required. Anti-Siphon valves are installed above ground and will prevent back flow if properly installed. Anti-Siphon valves should always be installed at least 6 above the highest head on the valve line, and should never have another valve installed further down the line from the main valve.
Anti-Siphon valves also feature a patented vacuum breakeravailable for automatic or manual applications.,The 075 ASVF Irrigation Valve Series comes with an atmospheric backflow preventer and DVF valve