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)
  • 24 VAC 50/60Hz (cycles per second) solenoid power requirement: 0.450A inrush current; 0.250A holding current
  • Solenoid coil resistance: 38 Ohms

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


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


  • 075-ASVF: ¾" (20/27)
  • 100-ASVF: 1" (26/34)

Models available in NPT threads only


  1. 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.
  2. Rain Bird residential valves cannot be used with PRS pressure regulating modules.
  3. Not recommended for use with two-wire systems.

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