Skip to content
Rain Bird 100ASVF 1-inch anti-siphon irrigation valve, front view showing flow-control knob, vacuum breaker and 1" FNPT inlet in a durable plastic body.

Rain Bird 100ASVF 1" Anti-Siphon Irrigation Valve

Brand: Rain Bird
Save 27%
$47.26
$34.27
SKU 100ASVF
In Stock (74)

Notify me when back in stock

The Rain Bird 100ASVF 1" Anti-Siphon Irrigation Valve is a 1" FNPT plastic valve with a built-in vacuum breaker and an easy-access flow control knob. Engineered for residential and light-commercial irrigation, the ASVF prevents backflow when installed upright and works with any standard 24 VAC sprinkler timer.

  • 1 in. FNPT inlet/outlet - durable plastic body for cold-water irrigation use (less than 110°F).
  • Operating pressure: 15-150 PSI; flow range: 0.2-40 GPM; suitable for typical lawn and garden zones.
  • 24 VAC solenoid (0.30 A inrush, 0.23 A holding); coil resistance 38 Ω - compatible with standard controllers.
  • Built-in vacuum breaker (patented) provides atmospheric backflow prevention; IAPMO, ASSE and CSA listings.
  • Compact dimensions - Height 6-1/4", Length 6-1/10", Width 3-1/5"; inlet center-to-center distance: 3-7/8".
  • Includes flow-control knob and external flush/bleed port; for flows below 3 GPM use an upstream filter (RBY-100-200MX recommended).

Install anti-siphon valves above ground and at least 6" above the highest sprinkler head on the valve line; do not install additional valves downstream. Refer to the product manuals, sell sheets, and pressure-loss charts for detailed installation, troubleshooting, and maintenance guidance. The 100ASVF delivers reliable backflow protection and precise zone control for residential irrigation systems.

Reviews

Frequently Asked Questions

What size and thread type does the 100ASVF use?
The 100ASVF is a 1" valve with 1" FNPT female inlet and outlet, designed for standard residential irrigation connections.
What pressure and flow ranges does this valve support?
Operates between 15-150 PSI with a flow range of 0.2-40 GPM, suitable for typical lawn and garden irrigation zones.
What power and solenoid specifications are required?
Requires a 24 VAC solenoid: 0.30 A inrush, 0.23 A holding; coil resistance 38 Ω, compatible with standard irrigation controllers.
How should the anti-siphon valve be installed?
Install upright above ground at least 6" above the highest sprinkler head on the valve line and do not install other valves downstream.