Orbit Brass Atmospheric Vacuum Breaker 51059 – 3/4-Inch Sprinkler System

Overview

Engineered by Orbit for reliable lawn and garden care, the Orbit 51059 Brass Atmospheric Vacuum Breaker is designed to sit at the edge of outdoor irrigation lines. With a sturdy heavy-cast brass body and a three-quarter inch connection, this valve is built to endure the hustle of yard work while remaining visually sturdy in any weather. It’s rated for outdoor cold-water use and supports up to 150 PSI, offering a practical option for protecting your sprinkler setup without burdening your main water line.

What this device does is provide a head-level safeguard for your irrigation system. It helps minimize the chance that contaminants could travel back toward the main supply through sprinkler heads, a useful consideration for many residential setups. It is not intended to function as a mainline anti-siphon device, so it works in concert with appropriate system components rather than replacing them.

Key features

• Heavy-cast brass body for long-lasting outdoor performance
• 3/4-inch connection compatible with standard sprinkler gear
• Rated up to 150 PSI for versatile home irrigation
• Outdoor use with cold water only

Practical uses and benefits

• Ideal for residential lawns, flower beds, and multi-zone sprinkler setups
• Provides a head-level safeguard to help reduce backflow risk in outdoor systems
• Durable construction suited to seasonal conditions and regular maintenance

Installation and care

Install according to standard outdoor irrigation practices, ensuring a cold-water supply and proper connections. Regular inspection of the brass body and fittings helps maintain a secure seal and steady performance. Note that this device is not a substitute for mainline anti-siphon equipment.