3/4 800M4QT PRESSURE VAC BRKR

The 3/4" 800M4QT PRESSURE VAC BRKR is a Watts pressure vacuum breaker (PVB) used as a backflow prevention device in plumbing systems.

🚰 What it is

A pressure vacuum breaker (PVB) that protects drinking water from contamination by preventing back-siphonage (reverse water flow).

⚙️ What it does

• Lets water flow one direction only
• Opens an air inlet if pressure drops to prevent dirty water from being sucked back into clean water lines
• Commonly installed on irrigation and outdoor water systems

🔧 Key features

• Size: 3/4 inch NPT
• Type: Anti-siphon pressure vacuum breaker
• Material: Heavy-duty bronze body
• Includes quarter-turn shutoff valves
• Built-in test cocks for servicing/winterization
• Rated for continuous pressure use (irrigation systems)
• Typical max pressure: 150 PSI

🏡 Where it’s used

• Lawn sprinkler systems
• Irrigation zones
• Commercial water systems
• Any outdoor potable water line that could be exposed to contamination risk