Hunter PGV-ASV 1 in. Anti-Siphon Sprinkler Valve — 150 PSI, Integrated Flow Control

This 1" threaded Hunter valve combines backflow prevention and zone control into a single, serviceable unit engineered for residential and light commercial irrigation. Rated to 150 PSI and built from corrosion-resistant materials, the PGV-ASV is designed for outdoor cold-water service where dependable shutoff, easy installation, and seasonal durability are priorities. It works with both standard 24V AC solenoids and DC-latching battery controllers, letting you adapt the valve to wired or battery-powered systems without extra parts.

How does the anti-siphon feature protect my water supply?

The PGV-ASV incorporates a built-in anti-siphon mechanism that prevents contaminated water from being drawn back into the potable supply, helping meet many local code requirements without adding a separate backflow device. Its design vents the valve internals above the highest downstream point to stop negative pressure events from creating backflow risks.

• Integrated anti-siphon design eliminates need for separate backflow assembly in many installations
• Above-ground venting reduces risk of siphon during pressure loss
• Meets common backflow protection expectations for residential irrigation

What materials and construction make this valve durable outdoors?

Hunter built the PGV-ASV with a glass-filled nylon body, stainless steel hardware, and a reinforced diaphragm to resist UV, corrosion, and mechanical wear. A 6-bolt bonnet provides a secure seal and straightforward service access, so the valve tolerates seasonal use and maintenance without compromising performance.

• Glass-filled nylon body for UV and impact resistance
• Stainless steel springs and fasteners to resist corrosion
• Reinforced diaphragm and 6-bolt bonnet for long-term reliability

Can I control flow precisely for lawns, beds, or drip zones?

Yes — the PGV-ASV includes an adjustable flow control knob that lets you trim output for each zone, reducing runoff and delivering the right volume to lawns, shrubs, or drip lines. Fine-tuning on the valve reduces the need for downstream throttling and helps balance multiple zones on one controller.

• Integrated flow control knob for quick, on-site adjustments
• Helps balance pressure between sprinklers and drip emitters
• Simplifies setup when mixing spray and drip zones on one system

How straightforward is installation and what controllers does it work with?

Installation is designed to be fast and frustration-free: captive screws, standard 1" threaded ports, and clear solenoid wiring make the process accessible to DIYers and pros. The valve accepts standard 24V AC solenoids and DC-latching solenoids used on battery-operated controllers, offering flexibility when upgrading or designing systems.

• 1" threaded ports fit common irrigation plumbing fittings
• Captive bonnet screws prevent lost hardware during service
• Compatible with 24V AC and DC-latching battery controllers for versatile control options

Who this is for: The Hunter PGV-ASV 1" Anti-Siphon Valve is ideal for homeowners, landscape contractors, and property managers who need a compact, code-friendly valve that blends backflow protection with reliable zone control. Choose this model if you require a rugged outdoor valve that’s easy to install, compatible with wired or battery controllers, and offers on-valve flow adjustment for lawns, gardens, or mixed irrigation systems.