This 1 inch Lead Free freeze-resistant pressure vacuum breaker backflow preventer (PVB) is designed to prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage under continuous pressure. Its superior design protects the valve body and internal components during sudden freeze conditions by relieving pressure caused by ice formation.

Key Features

• Features a unique built-in relief valve to relieve pressure from ice formation.
• Includes a freeze sensor for use with SentryPlus Alert® technology to monitor temperature and alert facility personnel when freeze conditions occur.
• Equipped with tee handle quarter turn ball valve shutoffs for easy operation.
• Test cocks are positioned for easy testing and winterization.
• Features a compact, space-saving design.
• Constructed with a Lead Free cast copper silicon alloy body for durability.
• Requires no special tools for servicing.

Internal Components

• Incorporates a replaceable plastic seat and a durable silicone seat disc.
• Designed for easy maintenance of internal parts.
• Includes an O-ring bonnet seal for less possibility of fouling.

A WARNING: The freeze sensor provides alerts about a possible freeze event but cannot prevent it. User action is required to prevent freeze conditions from causing product and/or property damage. An add-on connection kit (sold separately) is required to activate the freeze sensor's communication functions.