Watts 0792012 1" Pressure Vacuum Breaker LF800M4QT

Watts 0792012 1” Pressure Vacuum Breaker LF800M4QT is the safety equipment necessary for HVAC systems. It protects potable water supplies against backflow contamination. This is true when the system pressure less than atmospheric pressure, that is when a vacuum is created. The vacuum breaker has the interlocking of a spring loaded poppet valve which seals off when in use to shut out dangerous items such as sewage or contaminated water. This equipment increases safety, compliance with the code, and is easy to install. It is used in cooling towers, chilled water systems and all other HVAC system applications where back flow prevention is required.