Please note: if you are not sure which size PVB or repair parts you need, click HERE and you will be shown a web page that will allow you to identify the correct parts.
FEBCO 765 1" Pressure Vacuum Breaker (PVB). This vacuum breaker provides protection against backsiphonage of toxic or non-toxic liquids. The irrigation line will remain pressurized at all times, but if pressure is lost within the house, the valve will open to prevent lawn water from enetering into your house water lines. The PVB contains a spring loaded check valve which closes tightly when the pressure in the assembly drops below 1 PSI or when zero flow occurs. An air relief valve opens to break a siphon when the pressure in the assembly drops to 1 PSI. Repair parts for existing Febco PVBs are also available. Free ground shipping
Repair instructions for this part are available from the FEBCO web site at: http://media.wattswater.com/IOM-F-765.pdf
