Backflow Antisiphon Valve

The Watts model T388002 (Series 800M4QT) is a 1-inch, bronze, anti-siphon pressure vacuum breaker (PVB). It is specifically designed to prevent polluted or non-potable water from siphoning back into your potable water supply in health-hazard applications like irrigation systems and industrial process water.Core SpecificationsConnection Size: 1-inch Female NPT (National Pipe Thread)Pressure Rating: Maximum 150 PSITemperature Range: 33°F to 140°F (0.5°C to 60°C)Material: Durable bronze body with stainless steel springs, silicone rubber discs, and a lightweight plastic floatKey FeaturesFreeze Protection: Equipped with an acetal bonnet that acts as a "freeze plug" to prevent severe body damage in freezing temperatures.SentryPlus Alert Ready: Features an integrated freeze sensor that can be wired with a Watts add-on kit to send ambient temperature alerts to your irrigation or building management systems.Quarter-Turn Shutoffs: Includes easily operated tee-handle ball valves and test cocks that are useful for winterization and system testing.Installation & MaintenanceInstallation: Must be installed a minimum of 12 inches above the highest downstream sprinkler head or water outlet to work correctly.Servicing: Can be maintained easily without the need for special tools.Testing: Local codes typically mandate annual testing by a certified backflow tester.