ASVF Series

Anti-siphon valve with flow control – the industry leader for over 20 years

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 a double-check valve is required by city codes to protect against back flow. 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. Our Anti-Siphon valves also feature our patented vacuum breaker–available for automatic or manual applications. All of our Anti-Siphon valves work with any standard sprinkler timer.


Combination of the reliable DVF Angle valve and atmospheric backflow preventer in one unit
Incorporates all features of DV/DVF Series valves
I.A.P.M.O. and A.S.S.E. listing approved
City of Los Angeles listing approved
Not recommended for use with two-wire control systems


Pressure: 15 to 150 psi (1,0 to 10,4) bar
075-ASVF Flow: 0.2 to 22 GPM (0,05 to 5,0 m³/h; 0,01 to 1,39 l/s). For flows below 3 GPM (0,68 m³h; 0,19 l/s) or any Landscape Drip products application, use a 200 mesh filter installed upstream
100-ASVF Flow: 0.2 to 40 GPM (0,05 to 9,085 m³/h; 0,01 to 2,52 l/s). For flows below 3 GPM (0,68 m³h; 0,19 l/s) or any Landscape Drip products application, use a 200 mesh filter installed upstream
Water temperature: Up to 110°F (43°C)
Ambient air temperature: Up to 125°F (52°C)
Solenoid coil resistance: 38 Ohms
24 VAC 50/60Hz (cycles per second) solenoid power requirement: 0.450A inrush current; 0.250A holding current
Installation Notes
Anti-siphon valve must be installed upright
Anti-siphon unit must be installed at least 6" (15,2 cm) above the highest point of water in the pipe and sprinklers it serves
No valve can be located downstream of the anti-siphon valve
Anti-siphon valves must not be subjected to operating pressure for more than twelve (12) hours in any twenty-four (24) hour period
Uniform Plumbing Code Sec. 1003 (2) 602.2  Consult local codes
Rain Bird recommends flow rates that result in discharge velocities in the supply line not to exceed 7.5 ft/sec (2.3 m/s) in order to reduce the effects of water hammer
Rain Bird residential valves cannot be used with PRS pressure regulating modules
Not recommended for use with two-wire systems


Height: 6 ¼" (15.8 cm)
Length: 6 1/10" (15.5 cm)
Width: 3 1/5" (8.1 cm)

Model Comparison

  • 075-ASVF: ¾" (20/27)
  • 100-ASVF: 1" (26/34)
  • Note: Models available in NPT threads only
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