T792011 Watts LF800M4-QT-FZ 3/4" F.NPT Lead Free Anti-Siphon Pressure Vacuum Breaker with Quarter Turn Shutoffs & Freeze Sensor

This 3/4 inch lead free anti-siphon pressure vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a bronze body construction silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, tee handle shutoff, and test cocks for winterization draining. It is ideal in health hazard continuous pressure applications such as irrigation systems and industrial process water systems where the water enters the equipment at or below its flood rim. The maximum pressure is 150 psi (10.3 bar) and the minimum pressure is 15 psi (55 kPa). The pressure vacuum breaker includes a freeze sensor for use with SentryPlus Alert technology to signal when ambient temperature approaches the freeze threshold. Activated through an add-on connection kit, the sensor also triggers freeze alerts to facility personnel. Connection kit available for building/irrigation management system (BMS/IMS).

Install Instructions
Specification Sheet

• Includes a freeze sensor for use with SentryPlus Alert technology to signal when temperature nears the freeze point
• Freeze alerts feature available with add-on connection kit
• Lead free construction
• Replaceable seat
• Female NPT inlet and outlet with quarter turn shutoffs
• Easy internal access